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Report to Congressional Committees: 

United States Government Accountability Office: 

GAO: 

March 2006: 

Joint Strike Fighter: 

DOD Plans to Enter Production before Testing Demonstrates Acceptable 
Performance: 

GAO-06-356: 

GAO Highlights: 

Highlights of GAO-06-356, a report to congressional committees: 

Why GAO Did This Study: 

The Joint Strike Fighter (JSF) is DOD’s most expensive aircraft 
program. The program represents 90 percent of the remaining planned 
investment for recapitalizing DOD’s aging tactical aircraft fleet. 

GAO is required by law to review the program annually for 5 years, 
beginning in fiscal year 2005. This is our second report and GAO 
assessed the program’s acquisition approach—in terms of capturing 
knowledge for key investment decisions—and identified an alternative to 
improve outcomes. 

What GAO Found: 

DOD is investing heavily in procuring JSF aircraft before flight 
testing proves it will perform as expected. For example, the JSF 
program plans to produce 424 low-rate initial production aircraft, at a 
total estimated cost of more than $49 billion, by 2013—the same time at 
which the program plans to complete initial operational testing. 
Producing aircraft before testing demonstrates the design is mature 
increases the likelihood of design changes that will lead to cost 
growth, schedule delays, and performance problems. Because the program 
will lack key design and testing knowledge, DOD plans to use cost 
reimbursement contracts to procure early production aircraft. This type 
of contract places a substantially greater cost risk on DOD and the 
taxpayers. Confidence that investment decisions will deliver expected 
capability within cost and schedule goals increases as testing proves 
the JSF will work as expected. 

Overlap of Production Investments and Testing: 

[See PDF for image] 

[End of figure] 

At the same time, the JSF program has not adopted an evolutionary 
approach to acquiring the aircraft—despite DOD policy that prefers such 
an approach. Instead, the JSF program has contracted to develop and 
deliver the aircraft’s full capability in a single-step, 12-year 
development program—a daunting task given the need to incorporate the 
technological advances that, according to DOD, represent a quantum leap 
in capability. DOD’s buying power has already been reduced. Since 
initial estimates, program acquisition unit costs have increased by 28 
percent, or $23 million. Development costs have increased 84 percent, 
planned purchases have decreased by 535 aircraft, and the completion of 
development has slipped 5 years, delaying delivery of capabilities to 
the warfighter. With more than 90 percent of the JSF investment 
remaining, DOD officials have the opportunity to adopt a knowledge-
based and evolutionary acquisition strategy that would maximize DOD’s 
return on its investment. The acquisition approach used for the F-16 
fighter, the Air Force’s JSF predecessor, could provide a model for 
delivering JSF capabilities to the warfighter sooner and recapitalizing 
tactical aircraft forces more quickly while lowering risk. The F-16 
program successfully evolved capabilities over the span of about 30 
years, with an initial capability delivered to the warfighter about 4 
years after development started. 

What GAO Recommends: 

The Congress should consider delaying authorizations and appropriations 
for JSF procurement until a new business case is developed and flight 
testing demonstrates the design and integrated mission systems work. 
GAO included this matter for consideration because DOD did not plan to 
make changes as a result of recommendations. 

GAO is recommending that DOD delay investing in production until flight 
testing shows that the JSF performs as expected, and that the program 
develop a plan, consistent with DOD’s preferred policy, to adopt an 
evolutionary approach that limits new content for each increment to 
proven technologies and design. DOD partially concurred, but believes 
that its current practices achieve our recommendations’ objectives. 

www.gao.gov/cgi-bin/getrpt?GAO-06-356. 

To view the full product, including the scope and methodology, click on 
the link above. For more information, contact Michael J. Sullivan at 
(202) 512-4841 or sullivanm@gao.gov. 

[End of section] 

Contents: 

Letter: 

Results in Brief: 

Background: 

JSF Acquisition Strategy Will Begin Procurement before Testing 
Demonstrates the Aircraft's Performance: 

Evolutionary Acquisition Strategy Provides a Less Risky Alternative for 
the JSF Program: 

Conclusions: 

Matters for Congressional Consideration: 

Recommendations for Executive Action: 

Agency Comments and Our Evaluation: 

Appendix I: Scope and Methodology: 

Appendix II: Changes in JSF Program Purchase Quantities and Costs: 

Appendix III: Comments from the Department of Defense: 

Table: 

Table 1: Military Services' Planned Use for the Joint Strike Fighter: 

Figures: 

Figure 1: Overlap of Low-Rate Initial Production Investments and 
Testing Demonstrations of the JSF Variants: 

Figure 2: JSF Program Acquisition: 

Figure 3: JSF's Annual Funding Requirements, as of December 2004: 

Figure 4: F-16 Incremental Development Approach: 

Figure 5: Planned JSF Blocks: 

Figure 6: Potential Application of an Incremental Development Approach 
to the JSF Program: 

Abbreviations: 

DOD: Department of Defense: 

JSF: Joint Strike Fighter: 

OSD: Office of the Secretary of Defense: 

United States Government Accountability Office: 

Washington, DC 20548: 

March 15, 2006: 

Congressional Committees: 

Since the Joint Strike Fighter (JSF) program began in 1996, Congress 
has appropriated nearly $25 billion for its development. It is the 
Department of Defense's (DOD) most expensive aircraft acquisition 
program. As the program is currently planned, DOD estimates it will 
spend $257 billion to develop and procure about 2,443 aircraft and 
related support equipment by 2027 and an additional $347 billion to 
operate and support these aircraft once they have been fielded. 

JSF program goals are to develop and field a family of stealthy, strike 
fighter aircraft for the Navy, Air Force, and Marine Corps, and United 
States allies. Design plans call for three variants of the aircraft, 
but the program aims to provide maximum commonality to minimize life 
cycle costs. JSF is a central part of DOD's overall recapitalization 
strategy for its tactical aircraft fleet, representing 90 percent of 
the remaining planned investment for its major tactical aircraft 
programs. How DOD manages the JSF program in the future will be 
critical for getting the most out of this remaining large investment 
and for success in replacing the aging fleet of tactical aircraft. 

The Ronald W. Reagan National Defense Authorization Act for Fiscal Year 
2005 (P.L. 108-375) requires GAO to review the JSF program annually for 
5 years.[Footnote 1] In March 2005, we reported the JSF's original 
business case was unexecutable and recommended that DOD establish an 
executable program consistent with best practices and DOD policy 
regarding evolutionary acquisitions.[Footnote 2] We also recommended 
that this new business case be accompanied by a knowledge-based 
acquisition approach[Footnote 3]--an approach that ensures attainment 
and use of demonstrated product knowledge before making future 
investments. In commenting on our report, DOD stated that JSF's 
restructured acquisition plan would incorporate a knowledge-based, 
evolutionary approach consistent with DOD policy. This is our second 
report. Specifically, we (1) determined whether the JSF program 
acquisition strategy captures critical knowledge in time to make 
production investment decisions and (2) identified an alternative to 
the current acquisition strategy to improve JSF program outcomes. 

The act also requires us to certify whether we had access to sufficient 
information to make informed judgments on the matters contained in our 
report. We were provided sufficient information to assess the plans to 
capture technology, design, and manufacturing knowledge for the three 
JSF variants, the evolutionary nature of the acquisition strategy, and 
the opportunities to improve outcomes. At the time of our review, the 
Office of the Secretary of Defense (OSD) was still preparing its fiscal 
year 2007 budget request as well as conducting its independent 
assessment of the program cost estimate, which is not expected to be 
completed until sometime in 2006. Additionally, the Quadrennial Defense 
Review was ongoing during our review, and we did not have insights into 
the potential outcomes or how the results of the study might affect the 
JSF program. We performed our work from June 2005 through March 2006 in 
accordance with generally accepted government auditing standards. For 
more on our scope and methodology, see appendix I. 

Results in Brief: 

Despite recent program restructuring, the JSF program continues to base 
its acquisition strategy on a highly concurrent approach that makes 
significant investments in manufacturing capabilities and production 
aircraft before flight testing demonstrates the JSF's performance. As a 
result, significant development risk remains, and it is likely that 
current cost and schedule goals will not be met. The program plans to 
proceed into low-rate initial production in 2007 with inadequate 
testing to prove a mature design for any of the three basic JSF variant 
airframes, without developing critical software, or without a fully 
integrated aircraft with advanced mission systems and prognostic 
maintenance capabilities. All three production representative 
variants[Footnote 4] will not be in flight testing until 2009, and a 
fully configured, integrated development aircraft will not begin flight 
testing until 2011--4 years after production begins. By this time, DOD 
plans to have ordered 190 aircraft at a cost of about $26 billion. By 
2013, when initial operational testing is expected to be complete, the 
program plans to have procured 424 aircraft at an expected cost of $49 
billion. Because it will lack necessary technology, design, and 
performance knowledge, DOD plans to procure early production aircraft 
using cost-reimbursable-type contracts. This type of contract places a 
significantly greater cost risk on DOD. 

DOD has revised its acquisition policy to embrace evolutionary 
acquisition, allowing managers to develop and evolve a product through 
small, time-phased development increments--an alternative still 
available to the JSF program. Instead of establishing time-phased 
requirements for aircraft to be delivered in sequence that could first 
meet DOD's need to recapitalize its aging fleet of aircraft and then 
evolve the aircraft to eventually achieve improved capabilities in 
future increments, DOD chose a single-step approach to develop and 
deliver the JSF with ultimate capabilities in a single 12-year system 
development program. The large amount of uncertainty in this approach 
has already led to poor cost and schedule estimates for the JSF program 
and a reduction in DOD's buying power. The length and scope of work 
remaining continue to make it difficult to predict the cost and time 
needed to complete the program. The Air Force's JSF predecessor, the F- 
16 Fighter program, provides a model for a less risky alternative JSF 
acquisition strategy that delivers weapons to the warfighter more 
quickly and that recapitalizes tactical aircraft forces sooner. The F- 
16 program successfully delivered 2,200 aircraft with incremental 
improvements as technology became available over the span of about 30 
years. An initial F-16 capability was delivered to the warfighter 
within about 4 years after development began and substantial quantities 
were purchased with each increment to meet warfighter needs, including 
the replacement of aging legacy tactical fighter aircraft. 

To improve the chances for a successful outcome, we are recommending 
the JSF program delay production and investments in production 
capability until the aircraft design qualities and integrated mission 
capabilities of the fully configured and integrated JSF aircraft 
variants have been proven to work in flight testing. We are also 
recommending the Secretary of Defense report to the Congress by July 
2006 on the feasibility of an incremental acquisition approach that 
follows the intent of DOD evolutionary acquisition policy and delivers 
a first increment that limits new content to proven technologies and 
design. 

DOD partially concurred with our recommendations stating that the 
current JSF acquisition strategy and management practices will be able 
to achieve the objectives of our recommendations, and therefore, 
further limits on production are unnecessary. DOD also stated that the 
program's strategy balances technical risk, financial resources, and 
operational needs to reduce program risk and is based on a knowledge- 
based, incremental approach. We continue to believe DOD's planned 
strategy to make significant investments in production concurrent with 
testing is very risky and is similar to strategies of past programs 
with poor outcomes. We believe that DOD has an opportunity to reduce 
risk by adopting an acquisition strategy based on capturing technology, 
design, and manufacturing knowledge. We also believe that smaller, more 
manageable commitments in capabilities would make JSF program cost and 
schedule more predictable and deliver needed capabilities to the 
warfighter sooner. Because DOD does not plan to make changes as a 
result of our recommendations, we believe Congress should consider 
delaying authorizations and appropriations for JSF procurement until 
DOD develops a new business case and demonstrates the aircraft design 
qualities and integrated mission capabilities of the fully configured 
and integrated JSF variants work as designed based on actual flight 
testing. 

Background: 

JSF is a joint, multinational acquisition program for the Air Force, 
Navy, Marine Corps, and eight cooperative international partners. The 
program began in November 1996 with a 5-year competition between 
Lockheed Martin and Boeing to determine the most capable and affordable 
preliminary aircraft design. Lockheed Martin won the competition, and 
the program entered system development and demonstration in October 
2001. 

DOD has set major expectations for the program. The program's objective 
is to develop and deploy a technically superior and affordable fleet of 
aircraft that support the warfighter in performing a wide range of 
missions in a variety of theaters. The single-seat, single-engine 
aircraft is being designed to be self-sufficient or part of a 
multisystem and multiservice operation, and to rapidly transition 
between air-to-surface and air-to-air missions while still airborne. To 
achieve its mission, JSF will incorporate low observable technologies, 
defensive avionics, advanced onboard and offboard sensor 
fusion,[Footnote 5] internal and external weapons, and advanced 
prognostic maintenance capability. According to DOD, these technologies 
represent a quantum leap over legacy tactical aircraft capabilities. At 
the same time, the JSF aircraft design includes three variants: a 
conventional takeoff and landing variant for the Air Force; an aircraft 
carrier-suitable variant for the Navy; and a short takeoff and vertical 
landing variant for the Marine Corps, the Air Force, and the United 
Kingdom. JSF is intended to replace a substantial number of aging 
fighter and attack aircraft in DOD's current inventory (see table 1). 

Table 1: Military Services' Planned Use for the Joint Strike Fighter: 

Service: Air Force; 
Planned use: Replacement for the F-16 and A-10; complement the F-22A. 

Service: Marine Corps; 
Planned use: Replacement for the AV-8B and F/A- 18 A/C/D. 

Service: Navy; 
Planned use: Complement the F/A-18 E/F. 

Source: DOD data. 

[End of table] 

In recent years, DOD has revised its acquisition policy to embrace an 
evolutionary, or incremental, approach to improve program outcomes. The 
acquisition policy states evolutionary acquisition is the preferred DOD 
strategy for rapid acquisition of mature technology for the user by 
delivering capability in increments, recognizing up front the need for 
future capability improvements. The objective is to balance needs with 
resources in order to put capability into the hands of the warfighter 
more quickly. The policy states that a product enters system 
development and demonstration when an affordable increment of 
militarily useful capability has been identified, technology has been 
demonstrated in a relevant environment, and a system can be developed 
for production in a short time frame (normally less than 5 years). Each 
increment of an evolutionary acquisition will have its own decision 
milestones and baseline--cost, schedule, and performance requirements. 
In commenting on our March 2005 JSF report, DOD stated that JSF's 
restructured acquisition plan would balance technical, cost, and 
schedule risk and incorporate a knowledge-based, evolutionary approach 
to system acquisition consistent with DOD policy. 

JSF Acquisition Strategy Will Begin Procurement before Testing 
Demonstrates the Aircraft's Performance: 

DOD's acquisition strategy for JSF has not substantially changed as a 
result of the program's restructuring last year. In May 2005, DOD 
leadership approved the program's plan, which intends to start 
production in 2007--more than 2 years before all three JSF variants 
have completed some flight testing of the aircraft's basic design, 4 
years before a fully configured and integrated aircraft is expected to 
be flight tested, and 6 years before development and initial 
operational testing are scheduled to be completed.[Footnote 6] Before 
development has ended, DOD will have potentially signed procurement 
contracts for 424 JSF aircraft at an estimated cost of $49 billion. 
Starting production before ensuring the design is mature through flight 
testing significantly increases the risk of costly design changes that 
will push the program over budget and behind schedule. Evidence of the 
risk associated with concurrently developing, testing, and producing 
the JSF aircraft can be seen in the program office strategy to place 
initial production orders on a cost reimbursement contract, placing an 
unusually high risk burden on the government during the early 
production phase. 

Key Testing Events Will Not Be Completed before Significant Procurement 
Investments Are Made: 

The JSF program plans to begin low-rate initial production of the 
aircraft before many of JSF's technology advances and basic flying 
qualities are flight-tested and to produce substantial quantities of 
aircraft before initial operational testing is completed. According to 
JSF program plans, DOD's low-rate initial production quantities will 
increase from 5 aircraft a year in 2007 to 133 a year, before 
development and initial operational testing are completed in 
2013.[Footnote 7] This production rate will require DOD to invest 
significantly in tooling, facilities, and personnel. Initial contractor 
cost estimates indicate that close to $1 billion of new tooling will be 
needed to support low-rate initial production rates. Early contractor 
data also show that the program will need to double its manufacturing 
workforce by 2008 and will need six times the number of manufacturing 
personnel before low-rate initial production ends. Total monthly 
spending for production activities in 2013 is expected to approach $1 
billion, a significant increase from $100 million a month when 
production is scheduled to begin in 2007. 

The cost of discovering design problems during production could be 
significant if testing shows that large, structural components of the 
aircraft require modifications. Design changes needed in one variant 
could also ripple through the other two variants, reducing efficiencies 
necessary to lower production and operational costs with common parts 
and manufacturing processes for the three variants. Some industry 
officials have indicated that the cost of design changes such as these 
could be 10 to 1,000 times greater, depending on how far the product 
has progressed into production. 

When the JSF program is expected to begin low-rate initial production 
in 2007,[Footnote 8] the program will have completed less than 1 
percent of the flight test program and none of the three JSF variants 
will have a production representative prototype built and in flight 
testing. Features critical to JSF's operational success, such as the 
low-observable and highly common airframe and the advanced mission 
systems, will not have been demonstrated in a flight test environment. 
The program plans to proceed into low-rate initial production without 
demonstrating that (1) the aircraft's flying qualities function within 
the parameters of the flight envelope--that is, the set limits for 
altitude, speed, and angles of attack; (2) the aircraft design is 
reliable; or (3) a fully integrated and capable aircraft system can 
perform as intended. These are key indicators of a program's readiness 
for entering production and making significant investments in tooling, 
facilities, and materials. When the first fully integrated and capable 
development JSF is expected to fly, in 2011, DOD will have committed to 
buy 190 aircraft at an estimated cost of $26 billion under current 
plans. By the time testing is planned to be completed, in 2013, DOD 
will have procured more than double that amount--424 aircraft at an 
estimated cost of about $49 billion. Figure 1 shows the significant 
overlap in development and testing and the major investments in 
production capability and aircraft that inject additional cost and 
delivery risks that could delay delivery of a proven capability to the 
warfighter. 

Figure 1: Overlap of Low-Rate Initial Production Investments and 
Testing Demonstrations of the JSF Variants: 

[See PDF for image] 

[A] Flight testing data reflect the percentage of the total flight 
tests completed at the time of the planned investment decision, which 
is currently planned for January of each year. 

[End of figure] 

Under the current schedule, the JSF program plans to manufacture and 
deliver 15 flight test aircraft and 7 ground test (nonflying) articles 
in 5 years--an aggressive schedule when compared with schedules of 
other programs with fewer variables. Current JSF schedules are already 
showing delivery of early test aircraft could be later than the planned 
delivery date. Unplanned manufacturing and technical problems can delay 
the completion of a flight test program, increase the number of flight 
test hours needed to verify that the system will work as intended, and 
affect when key knowledge will be available for making investment 
decisions. For example, when the B-2 program began flight testing in 
July 1989, it estimated that the flight test program would last 
approximately 4.5 years and require about 3,600 flight test hours. When 
the test program ended in 1997, the flight test hours had grown to 
5,000 hours, or by 40 percent, over an 8-year period. Program officials 
cited several causes, including difficulties in manufacturing test 
aircraft and correcting deficiencies from unanticipated problems 
discovered during testing. The F-22A encountered similar delays, 
increasing a planned 4-year flight test program to about 8 years and 
affecting the program's ability to conduct operational testing and move 
into production on schedule. 

Initial Procurement Decisions Will Be Made before the Basic Aircraft 
Design Is Demonstrated: 

While each JSF variant is similar--all are being designed to have 
stealth airframes, fly at supersonic speeds, shoot air-to-air missiles, 
and drop bombs on a target--there are subtle airframe design 
differences to support the services' different operational concepts and 
environments. Test officials acknowledge that each airframe variant 
will require flight testing to demonstrate that each will fly as 
intended. Yet at the time the JSF program expects to begin low-rate 
initial production, only 1 of 15 flight test aircraft is expected to 
have started testing. Further, the aircraft's test flights are not 
scheduled to begin until August 2006, less than 6 months before the 
planned decision to begin low-rate initial production,[Footnote 9] and 
will not assess the aircraft in more demanding operational 
environments, such as high angles of attack. Moreover, the first flight 
test aircraft will not include a large number of design changes that 
resulted from an effort to significantly reduce aircraft weight over 
the past 2 years and, therefore, will not represent the planned 
production configuration. The first demonstration of a production 
representative airframe that includes the latest design changes is 
scheduled for late 2007--after production has been initiated--with 
first flight of the short takeoff and vertical landing variant. 

All three variants will not be in flight testing until 2009, when the 
carrier variant is expected to have its first flight. Several key test 
events identified by the contractor to demonstrate the flight 
characteristics of these aircraft in the intended operational 
environment are not scheduled until 2009 or later. These include 
shipboard operations for the carrier and short takeoff and vertical 
landing variants. According to the contractor, the full-flight envelope 
for all three variants will not be fully demonstrated until 2011 or 
2012--4 to 5 years after low-rate initial production is scheduled to 
begin. 

According to DOD, modeling and simulation will be used to evaluate the 
performance of the aircraft's flying qualities and to support decisions 
to invest in production. However, the Rand Corporation recently 
reported in a study on testing and evaluation that modeling is not a 
substitute for flight testing.[Footnote 10] Rand found that even in 
performance areas that are well understood, it is not unusual for 
flight testing to uncover problems that were not apparent in 
simulations. Examples include flight effects on the wing of the F/A-18 
EF and buffeting of stores externally carried on various aircraft when 
flown in certain conditions. Additionally, OSD testing officials 
indicated that flight testing of each variant is necessary to 
demonstrate designed capabilities. Our past work has found that flying 
quality problems were identified during actual flight testing on 
programs like the F-22A, B-2A, and V-22. 

Finally, two major ground tests of the airframe's structural integrity-
-fatigue and static testing--will be in their very early stages or not 
have started when production begins. Fatigue testing, which measures 
the aircraft's durability over its expected life, is slated to begin in 
2008 with testing to show structural fatigue over one lifetime of 
flying to be completed in 2009 and a second lifetime completed by 2010. 
Fatigue testing uses actual JSF airframe structures that are subjected 
to the long-term stresses expected over the aircraft's life. Standards 
require this testing to be done to represent the stresses expected over 
two lifetimes. Static testing, which measures the aircraft's ability to 
withstand the stresses expected to be encountered throughout the 
aircraft's flight regime, is slated to begin in 2007 and last through 
2009. These tests are important to reduce the risk of structural 
problems emerging during production or after aircraft are fielded. 

Mission Capabilities Will Not Be Tested until 4 Years after Procurement 
Has Begun: 

In addition to late design testing, many of the mission systems planned 
for JSF will not be available for initial flight testing either. 
Although laboratory tests are under way, DOD does not plan to flight- 
test several of the new technologies needed for the JSF to perform its 
intended missions until 2009 at the earliest. Defense Operational Test 
and Evaluation officials have stated that flight-testing capabilities 
in a production representative test aircraft and in the operational 
environment planned for the new system are important to reducing risk. 
This actual environment differs from what can be demonstrated in a 
laboratory and has historically identified unexpected problems. For 
example, the F-22A software worked as expected in the laboratory, but 
when tested in the aircraft, significant problems were identified. 
These problems delayed testing and the delivery of a proven capability. 
The different levels of mission capability will be tested in JSF 
aircraft as follows. 

* Block 1, an initial air interdiction capability, is scheduled to 
begin testing in 2009, with initial operational testing scheduled for 
2011--4 years after DOD plans to begin production. 

* Block 2, an improved air interdiction and close air support 
capability, is scheduled to begin testing in 2010, with initial 
operational testing scheduled for 2012. This block will include several 
critical technologies that are not fully mature, such as the advanced 
missions systems and prognostics and health maintenance, but are 
critical to meeting requirements like sortie generation and mission 
capabilities. 

* Block 3, the fully integrated and capable JSF, is scheduled to begin 
testing in 2011. At this time less than 50 percent of the planned 
mission capability testing will have been completed. This is close to 
the same point that the F-22A and other past programs experienced 
difficulties integrating all the complex software and hardware 
components into the aircraft. Flight testing to evaluate the 
effectiveness and suitability of the fully integrated system is 
expected to continue until the full-rate decision in late 2013. 

Aggressive Software Development Schedule May Cause Delays: 

JSF's expected performance is largely dependent on demonstrating 
software that supports vehicle, mission system, and other capabilities. 
The program plans to develop over 19 million lines of code-- 
substantially more than the lines of code needed for the F-22A. The 
software is planned to be developed in five blocks. The first block is 
scheduled for completion in 2006, and the last block is scheduled for 
completion in 2011. At the time the program enters low-rate initial 
production, the program will have completed less than 35 percent of the 
software needed for the system's functionality. Past programs have 
encountered difficulties in developing software, delaying flight test 
schedules. Data provided by the program office indicate that the 
program is already showing early signs of falling behind its software 
delivery schedule. JSF program officials recognize the risk associated 
with this large software effort. 

The Current Acquisition Strategy Requires Prolonged Reliance on Cost 
Reimbursement Contracts That Place an Increased Risk on DOD: 

According to program officials, the uncertainties inherent in 
concurrently developing, testing, and producing the JSF aircraft 
prevent the pricing of initial production orders on a fixed price 
basis. Consequently, the program office plans to place initial 
production orders on a cost reimbursement basis. Cost reimbursement 
contracts provide for payment of allowable incurred costs, to the 
extent prescribed in the contract. Such contracts are generally used 
only when the uncertainties involved in contract performance do not 
permit costs to be estimated with sufficient accuracy to use any type 
of fixed price contract. Cost reimbursement contracts place substantial 
risk on the buyer--in this case DOD--because the contractor's 
responsibility for performance costs is minimized or reduced. In 
contrast, a fixed price contract provides for a pre-established price, 
and places more risk and responsibility for costs and resulting profit 
or loss on the contractor and provides more incentive for efficient and 
economical performance. 

The program plans to transition to fixed-price-type contracts once the 
air vehicle has a mature design, has been demonstrated in flight test, 
and is producible at established cost targets. According to program 
officials, this transition will occur sometime before full-rate 
production begins in 2013. The program office believes the combination 
of the early concept development work, the block development approach, 
and the relatively small numbers of aircraft in the initial production 
buys allow decisions to be made earlier than normal with an acceptable 
level of risk. 

Evolutionary Acquisition Strategy Provides a Less Risky Alternative for 
the JSF Program: 

The JSF acquisition strategy currently plans a single-step approach to 
deliver a quantum leap in tactical fighter capability by 2013 and has 
already felt the negative cost and schedule impacts from the executing 
this approach. The length and scope of the remaining effort in the JSF 
program make it even more difficult to accurately estimate cost and 
delivery schedules. The JSF funding profile--which requires an average 
of $11 billion annually for the next two decades--is also at risk to 
increase if costs continue to grow or schedules are further delayed to 
develop the ultimate JSF capabilities. An alternative acquisition 
strategy, such as used by the F-16 program, that sequences capabilities 
over time based on proven technologies and design would reduce risk and 
deliver aircraft sooner. This evolutionary approach is actually the 
preferred approach in DOD's acquisition policy for acquiring new 
systems for more rapid delivery of incremental capabilities to the 
warfighter. 

JSF Program Is Designed to Deliver Full Required Capability in a Single-
Step Development Program: 

Instead of establishing time-phased requirements for aircraft to be 
delivered in sequence that could first meet DOD's need to recapitalize 
its aging fleet of aircraft and then evolve the aircraft to eventually 
achieve improved capabilities in future system development increments, 
DOD chose a single-step development approach to deliver the full 
required capability by the end of system development in 2013. That 
approach is now planned to last 17 years (5 years in concept 
development and 12 years in system development)--including the 
development of immature, undemonstrated technologies and will take at 
least two to three times longer than the development time of leading 
commercial firms or that suggested by defense acquisition policy. The 
JSF acquisition strategy is shown in figure 2. 

Figure 2: JSF Program Acquisition: 

[See PDF for image] 

[A] The bar for production is not drawn to scale. JSF production lasts 
for 20 years. 

[End of figure] 

While JSF's acquisition strategy calls for delivering a small number of 
aircraft with limited capabilities, the program has committed to 
deliver the full required capability by the end of system development 
and demonstration in 2013. For JSF, this includes a set of objectives 
that exceeds those of aircraft development programs of the past. JSF 
will use cutting-edge technology to fuse data from the aircraft itself 
and other sources, from all aspects of the aircraft, and display the 
information to the pilot. The aircraft must be able to rapidly 
transition from ground attack to air-to-air missions while airborne. 
JSF also expects advances in technologies for mission systems, 
prognostics, and autonomic logistics support requiring hardware 
development as well as extensive and complex software development and 
integration to have lower cost of ownership than the legacy aircraft 
while being able to deploy rapidly, sustain high mission reliability, 
and maintain a high sortie generation rate. 

Past single-step development programs have been unsuccessful in 
predicting acquisition costs and delivery schedules. For example, 
development costs for the F-22A fighter, B-2 bomber, Crusader artillery 
vehicle, and Comanche helicopter skyrocketed, and production quantities 
were either substantially reduced or the program was canceled. Such 
outcomes are a poor return on investment and a failure to recapitalize 
aging legacy systems. So far the JSF program is experiencing similar 
results. Since the program's start, development cost has increased 84 
percent, the development schedule has increased by almost 5 years, and 
planned delivery of capabilities to the warfighter has been delayed. 
DOD now plans to buy 535 fewer aircraft than originally planned. As a 
result, DOD's buying power has been significantly reduced--program 
acquisition unit costs have increased by 28 percent, or $23 million, 
since first estimates. See appendix II for more details on JSF 
outcomes. 

Funding Needs Could Increase Given the Level of Risk to Complete the 
JSF Program: 

Despite a lengthy restructuring effort that added over $7 billion and 
18 months to the development program, JSF officials have stated that 
the restructured program has little or no flexibility for future 
changes or unanticipated risks. Furthermore, the length and scope of 
the remaining effort make it even more difficult to accurately estimate 
cost and completion schedules. While it has been over 9 years since the 
program started, the first flight test aircraft still has not been 
delivered. The program has planned almost 8 years to complete the 
remaining activities of the system development and demonstration phase. 
These remaining activities include: 

* fully maturing 7 of the 8 critical technologies; 

* completing the designs and releasing the engineering drawings for all 
three variants; 

* manufacturing and delivering 15 flight test aircraft and 7 ground 
test articles; 

* developing 19 million lines of software code; and: 

* completing a 7-year, over 12,000-hour flight test program. 

The JSF program's latest planned funding profile for development and 
procurement, produced in December 2004, expects annual funding 
requirements to hover close to $13 billion in between 2012 and 2022, 
peaking at $13.8 billion in 2013. If the program fails to achieve its 
current estimated costs, funding challenges could be even greater than 
they are today. Thus, even a modest cost increase would have dramatic 
impacts on funding. For example, a 10 percent increase in production 
costs would amount to over $21 billion (see fig. 3). 

Figure 3: JSF's Annual Funding Requirements, as of December 2004: 

[See PDF for image] 

[End of figure] 

The current cost estimate reflects the position of the JSF program 
office. The Office of Secretary of Defense Cost Analysis Improvement 
Group was to update its formal independent cost estimate in the spring 
of 2005, and the Navy and the Air Force were expected to fully fund the 
program consistent with the estimate. The group now does not expect to 
formally complete its estimate until the spring of 2006, but its 
preliminary estimate was substantially higher than the program 
office's. According to Cost Analysis Improvement Group officials, an 
assessment of the software and mission systems requirements based on 
more recent information could further increase the estimate of JSF 
costs. 

An Incremental Development Approach Provides an Alternative Model for 
Reducing JSF Risks: 

An incremental development approach consistent with DOD's policy on 
evolutionary acquisition and best practices has potential to deliver 
warfighter capabilities in planned product increments that would 
increase JSF capabilities over time. The F-16 fighter program, the Air 
Force's JSF predecessor, successfully evolved capabilities over the 
span of about 30 years, delivering increases of capabilities quickly 
and often, as technologies became available. That program may provide a 
model for a possible alternative acquisition strategy for the JSF 
program. Structuring the program into separate and manageable 
increments based on what is achievable now and in the future would 
allow more predictable cost and delivery estimates. 

Over the past three decades, the Air Force successfully procured more 
than 2,200 F-16s. The F-16 acquisition approach allowed the timely and 
affordable delivery of aircraft and capability to meet the warfighter's 
needs, including the recapitalization of aging aircraft. By using an 
evolutionary approach to develop the aircraft, the program was able to 
quickly deliver new and improved capabilities to the warfighter and 
increase the aircraft's capability as new technologies were matured and 
added to the aircraft. The first increment, developed during the 1970s, 
provided a "day fighter" aircraft with basic air-to-air and air-to- 
ground capabilities. This allowed the developer to deliver new and 
useful military capability to the warfighter in less than 4 years. With 
each subsequent increment, new technology was used to improve the 
engine, radar, structure, avionics, and other systems that allow the 
aircraft today to perform close air support, ground attack, air 
defense, and suppression of enemy defense missions (see fig. 4). The 
evolutionary approach also enriched the industrial base capabilities by 
extending the life of the production over the length of this 
incremental approach. 

Figure 4: F-16 Incremental Development Approach: 

[See PDF for image] 

Note: This gives the number of aircraft delivered to the U.S. Air Force 
only, no foreign military sales or other allied government sales 
included. 

[End of figure] 

In contrast, JSF's fully configured design represents a quantum leap in 
capability that far exceeds the capability of legacy systems that JSF 
is intended to replace. While the program is using a block structure-- 
where each block adds capabilities over the proceeding block--the 
blocks are part of a single development effort, and DOD is on contract 
with the developer to deliver the warfighter the full capability (see 
fig. 5). The program's block structure provides for an escalating 
capability, but DOD already plans to buy 95 percent of JSF aircraft 
with the ultimate capability (block 3). Unlike the approach used with 
the F-16, this risky approach will likely be like past programs that 
have encountered significant increases in cost and time, not allowing 
DOD to quickly recapitalize the aging legacy aircraft. 

Figure 5: Planned JSF Blocks: 

[See PDF for image] 

[End of figure] 

An evolutionary approach would entail delivering a first product 
increment with at least as much capability as currently operating 
legacy aircraft with sufficient quantities to allow DOD to retire older 
planes sooner and reduce operating inefficiencies. DOD has repeatedly 
raised concerns about the age of its fighter aircraft fleet, which was 
bought largely in the 1970s and 1980s and will need to be replaced 
around 2010. Delays in fielding JSF aircraft may increase costs to 
maintain legacy aircraft to meet force structure requirements. Limiting 
development to 5-year increments or less, as suggested in the DOD 
acquisition policy, would force smaller, more manageable commitments in 
capabilities and make costs and schedules more predictable. Some of the 
more challenging JSF capabilities, such as the advanced mission systems 
or prognostics technologies, would be deferred, kept in the technology 
base (off the critical path of the JSF program), and added to follow-on 
increments once they are demonstrated in the more conducive technology 
development environment.[Footnote 11] In addition to considering 
available resources--including technology and design knowledge, budget, 
and time--each increment should be based on the warfighter's most 
immediate needs and the number of aircraft needed to maintain a viable 
fleet. Figure 6 shows what an incremental approach might look like for 
JSF. 

Figure 6: Potential Application of an Incremental Development Approach 
to the JSF Program: 

[See PDF for image] 

[A] The bar for production is not drawn to scale. JSF production lasts 
for 20 years. 

[End of figure] 

Because an incremental approach would reduce the amount of risk in each 
development phase, it would make the program manager and contractor 
accountable for a lower-risk system development phase with precise cost 
and schedule targets. A shorter system development phase also makes it 
more feasible to align a program manager's tenure to the completion of 
the phase, holding the program manager accountable for decisions made. 
It also would enable the use of fixed-price-type contracts for 
production that contains a pricing structure that reduces government 
risk. 

Conclusions: 

While the JSF program plays a critical role in DOD plans to 
recapitalize the services' aging tactical aircraft fleet, DOD's current 
acquisition approach for the JSF program continues to be risky and 
could further jeopardize meeting this important objective. The JSF 
program has already encountered increases to estimated development 
costs, delays to planned deliveries, and reductions in the planned 
number of JSF to be procured that have eroded DOD's buying power. We 
believe the current acquisition strategy to begin production in 2007 is 
too risky. By committing to procure large quantities of the aircraft 
before completing testing that demonstrates that the design is mature 
and reliable, DOD has significantly increased the risk of further 
compromising its return on investment--as well as adding more cost and 
delaying the delivery of critical capabilities to the warfighter. Also, 
making sizable investments in tooling and other manufacturing 
capability needed to produce JSFs at higher rates before a fully 
integrated aircraft is demonstrated in testing places the program at 
risk for expensive design changes as testing uncovers problems. 
Deferring production decisions until all three variants' performance 
has been demonstrated throughout their flight envelopes and with the 
full integrated capability would allow additional time to capture 
knowledge and help to significantly minimize these risks. 

To continue with the current plan to deliver the ultimate JSF 
capability will require (1) execution of a 7-year test program without 
further schedule delays, (2) development of 5 major blocks of software 
(19 million lines of code), and (3) new and yet undemonstrated 
technologies for advanced mission systems that must collect, analyze, 
and synthesize information from other platforms or sensors not all a 
part of the JSF aircraft. These are necessary to ensure the JSF has 
increased situational awareness to destroy enemy air defenses and 
perform deep strike missions with advanced weapons. The JSF program 
will also need, annually, an average of $11 billion of development and 
procurement funding for the next two decades. 

All of these factors add to the challenges faced by DOD in trying to 
manage this highly concurrent program, increasing the risk it will have 
the same poor outcomes experienced by similar major acquisition 
programs with significant cost and schedule growth and delayed 
modernization and recapitalization of aging systems. DOD has an 
alternative. With 90 percent of DOD's remaining planned investment in 
JSF, it can adopt a knowledge-driven and evolutionary acquisition 
approach to reduce JSF program risks, recapitalize its aging tactical 
air force sooner, and deliver needed capabilities to the warfighter 
more quickly. The experiences of the F-16 program--evolving and 
improving capabilities over time while providing the warfighter combat 
capability--provide a precedent for this. Requirements for the first 
increment of JSF under this evolutionary approach would match a level 
supported by current knowledge of technologies and design. This would 
allow the testing of those reduced requirements to support a knowledge- 
based low-rate production decision sooner and allow delivery of a 
useful product and in sufficient quantities to start replacing the 
aging legacy fighter force. Capabilities that demand as yet 
undemonstrated technologies, for example, advanced mission systems and 
software, would be included as requirements in subsequent future JSF 
aircraft increments--managed as separate development programs--as 
technology is demonstrated in the technology base and becomes 
available. 

Matters for Congressional Consideration: 

DOD does not plan to change its business case or acquisition plan for 
developing and buying the JSF. Without changes, the acquisition plan 
will put at risk $50 billion for procuring JSF aircraft at the same 
time the program develops and tests the aircraft's expected performance 
capabilities over a 7-year, 12,000 hour flight test program. The JSF 
program has continually missed its cost and schedule targets over the 5 
years it has been in development. If DOD were to make smaller, more 
manageable commitments in capabilities, it would make cost and schedule 
more predictable and deliver needed capabilities to the war fighter 
sooner. For these reasons, Congress may want to consider delaying 
authorizations and appropriations for procuring JSF aircraft until: 

1. DOD develops a knowledge-based business case that matches 
requirements with proven technologies and design knowledge and 
available funding. Capabilities that demand technological advances not 
yet demonstrated should be part of future increments that are funded 
and managed separately once demonstrated. 

2. DOD demonstrates the aircraft design qualities and integrated 
mission capabilities of the fully configured and integrated JSF 
variants work as designed based on actual flight testing. 

Recommendations for Executive Action: 

We are making the following recommendations to reduce program risk and 
increase the likelihood of successful program outcomes by delivering 
capabilities to the warfighter when needed and within available 
resources. Specifically, we recommend that the Secretary of Defense: 

3. Delay the investment in production aircraft until sufficient testing 
has at least demonstrated the basic airframe design of each JSF variant 
in important parts of the flight envelope, including combinations of 
critical altitudes, speeds, and angles of attack. 

4. Once the basic airframe design has been demonstrated, limit 
production quantities to the number of aircraft needed for operational 
testing and that can be produced using the current production 
capability (based on existing tooling, materials, and personnel) until 
a fully integrated aircraft (with advanced mission systems and 
predictive maintenance systems) demonstrates through flight testing the 
required capabilities. 

5. Plan an incremental acquisition strategy that follows the intent of 
DOD evolutionary acquisition policy and delivers a first increment that 
limits new content to proven technologies and design. The plan should 
be completed and reported to the Congress by July 2006, and include 
adjustments in associated programs as necessary to maintain needed 
capabilities. 

Agency Comments and Our Evaluation: 

DOD provided us with written comments on a draft of this report. The 
comments appear in appendix III. 

DOD partially concurred with our recommendation that the Secretary of 
Defense delay the investment in production aircraft until sufficient 
testing has at least demonstrated the basic airframe design of each JSF 
variant in important parts of the flight envelope, including 
combinations of critical altitudes, speeds, and angles of attack. DOD 
agreed that a knowledge-based approach is critical to making prudent 
decisions and that this type of approach is being used by JSF. However, 
DOD's response did not provide a plan of action to show how it will 
ensure flight testing demonstrates acceptable performance before 
significant production investments are made. In the past, Congress has 
raised concerns about the costly outcomes of highly concurrent 
development and production efforts that are not "flying before buying." 
DOD points out that the JSF program is in its fifth year of a 12-year 
development, but starting production with nearly 7 years of development 
and testing remaining leaves a high probability that, because it is not 
flying before buying, it will incur costly design changes and delay 
getting capability to the warfighter. Until there has been testing to 
demonstrate that all three variants will work as intended, we believe 
entering production in 2007 places financial investments at significant 
risk. The risk increases as spending for production goes from about 
$100 million a month in 2007 to over $500 million a month just 2 years 
later. 

DOD partially concurred with our recommendation to the Secretary of 
Defense to limit production quantities to the number of aircraft needed 
for operational testing and that can be produced using the current 
production capability until a fully integrated aircraft demonstrates 
the required capabilities through flight testing. DOD stated it is 
limiting production until aircraft capabilities are fully demonstrated 
and that further limits are not necessary. It stated that various 
program reviews to assess performance, including test objectives, are 
conducted to ensure associated program risks are understood and 
mitigated. We believe DOD's plan to invest almost $50 billion to buy 
over 400 aircraft concurrent with testing is very risky. Significant 
efforts remain in the JSF program to demonstrate the aircraft will 
perform as expected. A number of major DOD acquisition programs have 
employed highly concurrent acquisition strategies in the past and 
experienced significant cost increases and schedule delays. DOD stated 
its use of modeling and simulation and laboratory testing reduces risk. 
However, DOD operational test officials have stated that demonstrations 
need to occur in the actual aircraft in an operational environment to 
verify that the system works as intended. For example, the F-22A 
avionics software performed successfully in the laboratory but 
experienced significant problems that delayed the program and increased 
costs once it entered actual flight testing in the F-22A aircraft. JSF 
software and advanced electronics are more complex than the F-22A's. 
While DOD believes it can manage program risk by holding regular 
program reviews, DOD's own experience has shown this approach is not 
effective. Accepting and managing risk instead of capturing technology, 
design, and manufacturing knowledge, as suggested in DOD policy, has 
made it difficult for DOD to make informed decisions at key points. 

DOD partially concurred with our recommendation to the Secretary of 
Defense to plan an incremental acquisition strategy that follows the 
intent of DOD evolutionary acquisition policy and delivers a first 
increment that limits new content to proven technologies and design and 
to report this plan to Congress by July 2006. It stated the JSF 
Acquisition Strategy fully complies with policy and is a knowledge- 
based, incremental approach that includes three blocks of increasing 
degrees of warfighter capability. We believe DOD's strategy does not 
provide the benefits of an evolutionary approach, as suggested by DOD's 
policy and best practices. In commenting on our report, DOD did not 
address the salient points concerning the true significance of adopting 
an incremental acquisition approach--reducing program risk, delivering 
needed capabilities to the warfighter quicker, and recapitalizing the 
aging tactical aircraft fleet sooner. The JSF strategy resembles other 
past major acquisition programs that have attempted to achieve the 
ultimate capability in a single development increment, producing nearly 
all of the fleet with the fully required capability from the outset. 
DOD has allowed technology development to spill over into product 
development, weakening the foundation for program cost or schedule 
estimates. This has led to disastrous outcomes for other major 
acquisition programs in the past. We continue to believe the successful 
F-16 program can serve as a model for the JSF program. The F-16 program 
evolved capabilities over a 30-year period, buying substantial 
quantities of each increment in order to recapitalize aging tactical 
aircraft and provide new capabilities to the warfighter more quickly. 
If DOD were to make smaller, more manageable commitments in 
capabilities, it would make cost and schedule more predictable and 
deliver needed capabilities to the warfighter sooner. 

We are sending copies of this report to the Secretary of Defense; the 
Secretaries of the Air Force, Army, and Navy; and the Director of the 
Office of Management and Budget. We will also provide copies to others 
on request. In addition, the report will be available at no charge on 
the GAO Web site at http://www.gao.gov. 

If you or your staff have any questions concerning this report, please 
contact me at (202) 512-4841. Contact points for our offices of 
Congressional Relations and Public Affairs may be found on the last 
page of this report. Other staff making key contributions to this 
report were Michael Hazard, Assistant Director; Lily Chin; Matthew 
Drerup; Matthew Lea; Gary Middleton; Karen Sloan; and Adam Vodraska. 

Signed by: 

Michael J. Sullivan: 
Director: 
Acquisition and Sourcing Management: 

List of Congressional Committees: 

The Honorable John Warner: 
Chairman: 
The Honorable Carl Levin: 
Ranking Minority Member: 
Committee on Armed Services: 
United States Senate: 

The Honorable Ted Stevens: 
Chairman: 
The Honorable Daniel K. Inouye: 
Ranking Minority Member: 
Subcommittee on Defense: 
Committee on Appropriations: 
United States Senate: 

The Honorable Duncan L. Hunter: 
Chairman: 
The Honorable Ike Skelton: 
Ranking Minority Member: 
Committee on Armed Services: 
House of Representatives: 

The Honorable C.W. Bill Young: 
Chairman: 
The Honorable John P. Murtha: 
Ranking Minority Member: 
Subcommittee on Defense: 
Committee on Appropriations: 
House of Representatives: 

[End of section] 

Appendix I: Scope and Methodology: 

To determine if the Joint Strike Fighter (JSF) program will capture 
critical product knowledge before making production investments, we 
compared the program's plans and results to date against best practice 
standards for applying knowledge to support major program investment 
decisions. The best practice standards are based on a GAO body of work 
that encompasses nearly 10 years and visits to over 25 major commercial 
companies. Our work has shown that valuable lessons can be learned from 
the commercial sector, as well as successful Department of Defense 
(DOD) cases, and can be applied to the development of weapon systems. 
We reviewed JSF management reports, acquisition plans, test plans, risk 
assessments, cost reports, independent program assessments, and program 
status briefings. We identified gaps in product knowledge at the 
production decision points, reasons for these gaps, and the risks to 
program cost and schedule associated with moving forward. We reviewed 
DOD's acquisition policy to determine whether JSF's approach met its 
framework and intent. We interviewed officials from the DOD acquisition 
program management office and prime contractor to gain their 
perspectives on program risks and their approaches to managing risks. 

To evaluate whether the current acquisition plan follows an 
evolutionary or incremental approach, a key best practice for meeting 
business case goals, we examined the JSF program's acquisition 
framework and the actions taken by DOD to address the recommendations 
made in our 2005 report. We compared the JSF program's approach with 
the approaches used by leading companies and successful DOD programs to 
evolve products to their ultimate capabilities. We also reviewed DOD 
guidance on structuring evolutionary acquisition programs. To determine 
the JSF program outcomes to date, we used the program estimates that 
justified the program when it started in 1996. This was the point JSF 
transitioned from a technology development environment to an 
acquisition program environment, with the commitment to deliver a 
family of strike aircraft that meets the Air Force, Navy, and Marine 
Corps needs. At that time, total production, acquisition, and ownership 
costs had not been estimated. The total production, acquisition, and 
ownership cost estimates were first established to support the decision 
to enter the system development and demonstration phase in 2001. We 
used these estimates as the baseline for these costs. We also obtained 
information on past DOD programs from Selected Acquisition Reports and 
prior work conducted by GAO over the past 25 years. 

To identify opportunities to improve JSF program outcomes, we assessed 
the potential of applying an incremental development approach to the 
JSF acquisition program based on the commercial model and DOD guidance. 
We also examined the program history of the F-16 fighter, the JSF 
predecessor, which applied an incremental approach over its 30-year 
acquisition. The F-16 acquisition has been touted by DOD and others as 
a successful program and a model for others to follow. To examine the 
program history of the F-16, we met with F-16 program officials and 
analyzed acquisition plans, management reports, and program outcomes. 

In performing our work, we obtained information and interviewed 
officials from the JSF Joint Program Office, Arlington, Virginia; 
Lockheed Martin Aeronautical Systems, Fort Worth, Texas; Defense 
Contract Management Agency, Fort Worth, Texas; and offices of the 
Director, Operational Test and Evaluation, and Acquisition, Technology 
and Logistics, Program Analysis and Evaluation-Cost Analysis 
Improvement Group, which are part of the Office of Secretary of Defense 
in Washington, D.C. We also obtained information from the F-16 program 
office and Rand Corporation, Santa Monica, California. 

[End of section] 

Appendix II: Changes in JSF Program Purchase Quantities and Costs: 

Expected quantities: 

Development quantities; 
November 1996 (program start): 10; 
October 2001 (system development start): 14; 
As of December 2005: 15; 
Changes since initial estimate: 50. 

Procurement quantities (U.S. only); 
November 1996 (program start): 2,978; 
October 2001 (system development start): 2,852; 
As of December 2005: 2,443; 
Changes since initial estimate: (18). 

Total quantities; 
November 1996 (program start): 2,988; 
October 2001 (system development start): 2,866; 
As of December 2005: 2,458; 
Changes since initial estimate: (18). 

Cost estimates (then year dollars in billions): 

Development; 
November 1996 (program start): $24.8; 
October 2001 (system development start): $34.4; 
As of December 2005: $45.7; 
Changes since initial estimate: 84. 

Procurement; 
November 1996 (program start): Not available; 
October 2001 (system development start): $196.6; 
As of December 2005: $210.7; 
Changes since initial estimate: 7. 

Other; 
November 1996 (program start): Not available; 
October 2001 (system development start): $2.0; 
As of December 2005: $.2; 
Changes since initial estimate: (90). 

Total program acquisition; 
November 1996 (program start): Not available; 
October 2001 (system development start): $233.0; 
As of December 2005: $256.6; 
Changes since initial estimate: 10. 

Unit cost estimates (then year dollars in millions): 

Average procurement; 
November 1996 (program start): Not available; 
October 2001 (system development start): $69; 
As of December 2005: $86; 
Changes since initial estimate: 25. 

Program acquisition; 
November 1996 (program start): Not available; 
October 2001 (system development start): $81; 
As of December 2005: $104; 
Changes since initial estimate: 28. 

Unit recurring flyaway costs (fiscal year 2002 dollars in millions): 

Conventional takeoff and landing; 
November 1996 (program start): $31.5; 
October 2001 (system development start): $37.0; 
As of December 2005: $44.5; 
Changes since initial estimate: 41. 

Short takeoff and vertical landing; 
November 1996 (program start): $33.7-39.3; 
October 2001 (system development start): $45.8; 
As of December 2005: $58.7; 
Changes since initial estimate: 49-74. 

Carrier; 
November 1996 (program start): $34.9-42.7; 
October 2001 (system development start): $47.8; 
As of December 2005: $61.7; 
Changes since initial estimate: 44-77. 

Source: GAO analysis of DOD data: 

[End of table] 

[End of section] 

Appendix III: Comments from the Department of Defense: 

OFFICE OF THE UNDER SECRETARY OF DEFENSE: 
3000 DEFENSE PENTAGON: 
ACQUISITION TECHNOLOGY AND LOGISTICS: 
WASHINGTON. DC 20301-3000: 

FEB 28 2006: 

Mr. Michael J. Sullivan: 
Director, Acquisition and Sourcing Management: 
U.S. Government Accountability Office: 
441 G Street, N. W.: 
Washington, D.C. 20548: 

Dear Mr. Sullivan: 

This is the Department of Defense (DoD) response to the Government 
Accountability Office (GAO) draft report 06-356, "JOINT STRIKE FIGHTER: 
DOD Plans to Enter Production before Testing Demonstrates Acceptable 
Performance," dated January 26, 2006 (GAO Code 120450). The Department 
of Defense partially concurs with the three recommendations in the 
draft report. Details of the partial concurrences are contained in the 
enclosure. 

The Department appreciates the opportunity to comment on the draft 
report. 

Sincerely, 

Signed by: 

Mark D. Schaeffer: 
Acting Director: 
Defense Systems: 

Enclosure: As stated: 

GAO DRAFT REPORT - DATED JANUARY 26, 2006: 
GAO CODE 120450/GAO-06-356: 

"JOINT STRIKE FIGHTER: DOD Plans to Enter Production before Testing 
Demonstrates Acceptable Performance" 

DEPARTMENT OF DEFENSE COMMENTS TO THE RECOMMENDATIONS: 

RECOMMENDATION 1: The GAO recommended that the Secretary of Defense 
delay the investment in production aircraft until sufficient testing 
has at least demonstrated the basic airframe design of each JSF variant 
in important parts of the flight envelope, including combinations of 
critical altitudes, speeds, and angles of attack. (p. 22/GAO Draft 
Report): 

DOD RESPONSE: Partially Concur. The Department agrees that a knowledge- 
based approach is critical to making prudent acquisition decisions. The 
JSF Acquisition Strategy incorporates this type of approach. 
Established decision criteria to support each production decision 
include specific test deliverables. 

The JSF is in the 5th year of a 12-year development effort. In 2004, 
the program was restructured to allow additional development time to 
meet performance requirements associated with the Short Takeoff and 
Vertical Landing (STOVL) variant. Due to the high degree of commonality 
throughout the three JSF variants, the design changes from the STOVL 
weight reduction effort benefit the Conventional Takeoff and Landing 
(CTOL) and Carrier Variant (CV). The restructured program extended the 
System Development and Demonstration (SDD) phase by 18 months. The 
Department approved an updated Acquisition Strategy in May 2005 that 
reflects changes since the start of SDD, including the restructuring. A 
significant aspect of the restructuring was a comprehensive review and 
update to integrated test and evaluation planning. 

The Department is confident that the Acquisition Strategy and 
management practices currently in place achieve the objectives of GAO's 
recommendation. 

RECOMMENDATION 2: The GAO recommended that the Secretary of Defense 
limit production quantities to the number of aircraft needed for 
operational testing and that can be produced using the current 
production capability (based on existing tooling, materials, and 
personnel) until a fully integrated aircraft (with advanced mission 
systems and predictive maintenance systems) demonstrates through flight 
testing the required capabilities. (p. 22/GAO Draft Report): 

DOD RESPONSE: Partially Concur. The Department plans limited production 
until aircraft capabilities are fully demonstrated. Further limitations 
on production are not necessary. To reduce both risk and cost, the JSF 
Acquisition Strategy takes advantage of the benefits of flight test and 
significant advances in modeling, simulation, and lab testing that have 
been achieved in the commercial and military sectors. The JSF 
Acquisition Strategy provides the most effective balance of technical 
risk, financial resources, and the Services' operational needs. 

The JSF Acquisition Strategy includes clear entry and exit criteria for 
critical milestones to ensure that technologies are mature, and 
required incremental test objectives are achieved before obligating 
funds for SDD or production. The Department conducts acquisition 
reviews via Integrating Integrated Product Teams and Overarching 
Integrated Product Teams, which support Defense Acquisition Board 
reviews. Configuration Steering Board and Service Acquisition Executive 
reviews are conducted quarterly to assess program performance, 
including test objectives, ensuring associated program risks are 
understood and appropriately mitigated. 

RECOMMENDATION 3: The GAO recommended that the Secretary of Defense 
plan an incremental acquisition strategy that follows the intent of DOD 
acquisition policy and delivers a first increment that limits new 
content to proven technologies and design. The plan should be completed 
and reported to the Congress by July 2006, and include adjustments in 
associated programs as necessary to maintain needed capabilities. (p. 
22/GAO Draft Report): 

DOD RESPONSE: Partially Concur. The Department's approved JSF 
Acquisition Strategy fully complies with acquisition policy. It is 
premised on a knowledge-based, incremental approach that provides 
increasing degrees of warfighting capability with each block. Technical 
maturity, test accomplishments and operational effectiveness are key 
considerations at each acquisition decision point. 

Early production aircraft will have Block 1 capability for standup of 
initial training squadrons. Block 2 upgrades will support Marine Corps 
Initial Operational Capability. Block 3 will provide full avionics and 
key weapons capability. Previously delivered Block 1 and 2 aircraft 
will be upgraded to Block 3 capability. This approach provides initial, 
incremental capability to meet the most immediate, achievable 
warfighting requirements while development on more complex capabilities 
continues. 

The Department structured the JSF program from the beginning to 
emphasize jointness, technology maturation and concept demonstrations, 
as well as early cost and performance trades integral to the weapons 
system requirements definition process. The Department approved the 
updated JSF Acquisition Strategy in May 2005. Department and JSF 
Program leadership have provided program updates to Congress since then 
and will continue to do so. 

[End of section] 

FOOTNOTES 

[1] Section 213 of the act requires us to assess the extent to which 
the system development and demonstration program is currently meeting 
key cost, schedule, and performance goals; the likelihood that the 
program will be completed within estimated costs; and the program's 
current acquisition plan leading to production. 

[2] GAO, Tactical Aircraft: Opportunity to Reduce Risks in Joint Strike 
Fighter Program with Different Acquisition Strategy, GAO-05-271 
(Washington, D.C.: Mar. 15, 2005). 

[3] A business case provides demonstrated evidence that (1) the 
warfighter need exists and that it can best be met with the chosen 
concept and (2) the concept can be developed and produced within 
existing resources--including proven technologies, design knowledge, 
adequate funding, and adequate time to deliver the product when needed. 
Establishing a business case calls for a realistic assessment of risks 
and costs; doing otherwise undermines the intent of the business case 
and invites failure. 

[4] A production representative aircraft is one that is built using 
production-like tooling and methods and using production workers and is 
of the design expected be built to satisfy the requirements of the 
warfighter. Flight-testing a production representative prototype that 
incorporates all critical software is the primary method to capture key 
design knowledge that indicates the system will work as planned, is 
reliable, and is ready for production. The higher the percentage of 
testing completed, the lower the risk of investing in production. 

[5] Sensor fusion is the ability to take information from both multiple 
onboard and offboard aircraft sensors and display the information in an 
easy-to-use format for the pilot. It is vitally important, because the 
JSF is a single-seat aircraft, and the pilot needs support to carry out 
multiple types of missions. 

[6] Initial operational testing consists of field tests intended to 
demonstrate a system's effectiveness and suitability for military use. 

[7] These figures do not include the potential for orders for 
international partners during low-rate initial production. Preliminary 
data indicate that these orders could significantly increase this rate. 

[8] DOD policy contains three critical milestone decision points in its 
acquisition process. One of these, referred to as milestone C, 
authorizes entry into low-rate initial production. However, the JSF 
program is deviating from that milestone framework and has delayed this 
critical milestone decision point to the full-rate production decision 
point in 2013--more than 6 years after entering low-rate initial 
production. This delay compromises the controls expected in the DOD 
acquisition policy for the start of production. 

[9] During this approximately 6-month period of initial tests, which 
includes about 30 planned flights, the program intends to demonstrate 
the aircraft's flight qualities in limited flight conditions, takeoff 
and landing, and initial air refueling. However, recent program data 
indicate that the first flight may be delayed until October 2006, 
reducing the number of flights that may be completed before the 
production decision. 

[10] Rand Corporation, Test and Evaluation Trends and Costs for 
Aircraft and Guided Weapons (Santa Monica, California, 2004). 

[11] These technologies are not expected to be fully mature until 2011. 

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