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GAO-02-898R: 

United States General Accounting Office: 
Washington, DC 20548: 

July 24, 2002: 

The Honorable Tom Harkin: 
The Honorable Charles E. Grassley: 
The Honorable Peter G. Fitzgerald: 
The Honorable Richard Durbin: 
United States Senate: 

The Honorable Lane Evans: 
The Honorable James A. Leach: 
The Honorable Jim Nussle: 
House of Representatives: 

Subject: 2002 Update of the 155 mm Lightweight Howitzer: 

In July 2000 and April 2001, we issued reports to you and several other 
members of Congress describing the schedule, cost, and technical status 
of the 155 mm Lightweight Howitzer program. [Footnote 1] The 155 mm 
Lightweight Howitzer is expected to replace the M-198 towed howitzer. 
The Army-Marine Corps Lightweight Howitzer Joint Program Office is 
directing this program’s development, with BAE Systems (BAE), a British 
company, as the prime contractor. 

This report responds to your request of February 27, 2002, that we 
continue to monitor and report on this program due to your continued 
concerns about its schedule, cost, and technical difficulties and the 
program’s readiness for low-rate initial production. 

Results in Brief: 

Since our April 2001 report, all key milestones have slipped in large 
part because a 2-year low-rate initial production phase has been added 
to the program to provide production representative howitzers for 
operational testing. Correspondingly, the full-rate production decision 
has slipped from September 2002 to October 2004. The initial fielding 
of the howitzer by the Marine Corps has slipped to March 2005 or 8 
months. The initial fielding of the howitzer by the Army has slipped to 
August 2006, or 17 months. 

Since our April 2001 report, total program cost estimates have 
increased from $1,209.0 million to $1,365.2 million, an increase of 
$156.2 million. This increase is principally the result of the large 
number of design modifications resulting from developmental testing and 
restructuring the program to add a low-rate initial production phase. 
In addition, the costs for the towed artillery digitization (TAD) 
increased by about $51 million because (1) the complexity of developing 
the software and integrating TAD with the howitzer was underestimated, 
(2) the amount of planned testing has been increased, and (3) the TAD 
development contract was placed under BAE. 

Technical problems-such as the durability of the optical fire control, 
bore sight retention, and accuracy-cited in our April 2001 report and 
more recently raised by the services’ testing organizations have been 
addressed through design changes. However, some of these changes have 
not yet been tested, and the Marine Corps Operational Test and 
Evaluation Activity (MCOTEA) has yet to review test data that the 
program office believes shows the howitzer has met accuracy 
requirements. 

Additional information is being collected for the upcoming decision on 
whether the program should enter low-rate initial production. Such 
information includes (1) the final results from the operational 
assessment; (2) the results from the program office’s planned testing 
of the strength and accuracy of the first pilot production howitzer; 
and (3) an assessment from independent contractors on production 
readiness and the cost to complete production of the howitzer. 

The Department of Defense provided written comments that were technical 
in nature to a draft of this report. We incorporated those comments as 
appropriate. 

Background: 

The 155 mm Lightweight Howitzer is intended to be a lighter, more 
transportable, and mobile weapon for strategic and tactical movements. 
Weapon performance requirements include a maximum weight of 10,500 
pounds (about 5,500 pounds less than the M-198 towed howitzer it is to 
replace) and reduced time to place the weapon in a firing position 
compared with current weapons. 

The Army-Marine Corps Lightweight Howitzer Joint Program Office directs 
the Lightweight Howitzer development program. The Army will assume 
program management responsibilities for the Lightweight Howitzer 
program upon completion of deliveries to the Marine Corps. The Army 
plans to buy 273 guns and the Marines plan to buy 377, which is less 
than their earlier plan to buy 413, due to the deletion of a 
requirement to store howitzers in caves in Norway and other fielding 
changes. 

BAE is the Lightweight Howitzer prime contractor. Cannon barrels are 
being produced at the U.S. Army’s Watervliet Arsenal under a separate 
contract and are to be provided as government-furnished equipment. The 
howitzer will eventually incorporate TAD, an onboard, precision, self-
locating, and electronic aiming system. Until May 2002, General 
Dynamics was developing TAD under a separate contract for the Army. As 
part of the most recent program restructuring General Dynamics is now
producing TAD under a subcontract for BAE. 

BAE has subcontracted about 70 percent of the howitzer’s production to 
the U.S. contractors listed in table 1. 

Table 1: Major U.S. Subcontractors for the 155 mm Lightweight Howitzer: 

Subcontractor/location: Rotek Inc., Florence, Kentucky; 
Subcontracted component/activity: Traverse rack. 

Subcontractor/location: Wegmann, Lynchburg, Virginia; 
Subcontracted component/activity: Elevation assembly. 

Subcontractor/location: Pacific Castparts Corp., Portland, Oregon; 
Subcontracted component/activity: Titanium castings. 

Subcontractor/location: Pacific Cast Technologies, Albany, Oregon; 
Subcontracted component/activity: Titanium castings. 

Subcontractor/location: Howmet Castings, Whitehall, Michigan; 
Subcontracted component/activity: Titanium castings. 

Subcontractor/location: Hydro-Mill, Inc., Chatsworth, California; 
Subcontracted component/activity: Body assembly. 

Subcontractor/location: Major Tool and Machine, Inc., Indianapolis, 
Indiana; 
Subcontracted component/activity: Stabilizers, spades. 

Subcontractor/location: Rock Island Arsenal, Rock Island, Illinois; 
Subcontracted component/activity: Breach operating load tray system[A]. 

Subcontractor/location: RTI International Metals, Inc., Niles, Ohio; 
Subcontracted component/activity: Titanium. 

Subcontractor/location: Seiler Instruments and Mfg., St. Louis, 
Missouri; 
Subcontracted component/activity: Optical Fire Control. 

[A] BAE plans to offer this work to the Rock Island Arsenal for pilot 
production gun 2 and low-rate initial production but only if the Army 
can reduce the Arsenal’s overhead rate enough to bring them into the
competitive price range. For pilot production gun 1, BAE and Mitchell 
Aerospace of Canada are producing this assembly. 

Source: Lightweight 155 mm Howitzer Joint Program Office. 

[End of table] 

Program Schedule Continues to Slip: 

Since we last reported on this program in April 2001, the program 
schedule for all key milestones dates has slipped for the howitzer 
because of inclusion of a low-rate initial production phase. [Footnote 
2] 

In June 2001, the MCOTEA [Footnote 3] briefed the joint program office 
and advised them that the developmental guns were inappropriate for 
operational test and evaluation because they did not consider the 
developmental howitzers to be production representative. While the 
program office believed that the last four developmental guns would be 
production representative and had planned to use them for operational 
test and evaluation, MCOTEA told the program office that a production 
representative howitzer must: 

* be produced and assembled by contractors and subcontractors using
components, manufacturing processes, and materials specified for the 
fielded system, and; 

* incorporate all engineering change proposals, system improvements and
modifications resulting from analysis of developmental testing and 
operational assessment data to correct deficiencies in order to meet 
the requirements in the joint operational requirements document. 

MCOTEA did not believe that the developmental howitzers met these 
criteria because they were produced in Great Britian exclusively by BAE 
and not built on the U.S. production line by U.S. subcontractors, and 
do not include all of the engineering changes resulting from 
developmental testing, including incorporation of castings. U.S. 
subcontractors are currently producing two pilot production howitzers 
to reduce production readiness risks related to establishing a U.S. 
production line. These guns also will be the first to include all of 
the design changes resulting from developmental and operational 
assessment testing and the first to be built with castings. Although 
these guns will be produced on U.S. production lines, MCOTEA does not 
believe these howitzers will be production representative because they 
will be given special handling and attention atypical of usual 
production line processes. Therefore, MCOTEA does not consider them 
suitable for operational testing. However, the Joint Program Office 
plans to test the first pilot production howitzer, which is scheduled 
for completion in July 2002. The Army Test and Evaluation Command will
independently observe and assess the testing of the pilot production 
gun and provide the results of their assessment to MCOTEA, which will 
brief the results to the milestone decision authority, who will 
consider the results in making the low-rate initial production decision 
in October 2002. 

In October 2001, in response to MCOTEA’s concerns, the Joint Program 
Office restructured the program to provide production representative 
weapons for operational test and evaluation. The restructuring added 
low-rate initial production in place of full-rate production (Milestone 
C) and slipped the schedule for full-rate production by just over 2 
years, as shown in table 2. In addition, the testing of the first 
production article was delayed by 4 months, and the initial fielding of 
this system by the Marine Corps and the Army was delayed an additional 
8 months and 17 months, respectively. 

Table 2: Comparison of Key Program Milestones: 

Key milestones: Production Decision: Low Rate (Milestone C); 
December 1998 schedule: Not scheduled; 
December 2000 schedule: Not scheduled; 
April 2002: Oct. 2002[A]; 
Months delayed, December 1998 – December 2000 schedule: N/A; 
Months delayed, December 2000 – April 2002 schedule: N/A. 

Key milestones: Production Decision: Full Rate; 
December 1998 schedule: Sept. 2001[B]; 
December 2000 schedule: Sept. 2002; 
April 2002: Oct. 2004; 
Months delayed, December 1998 – December 2000 schedule: 12;
Months delayed, December 2000 – April 2002 schedule: 25. 

Key milestones: Production Contract Award: Low Rate; 
December 1998 schedule: Not scheduled; 
December 2000 schedule: Not scheduled; 
April 2002: Nov. 2002; 
Months delayed, December 1998 – December 2000 schedule: N/A; 
Months delayed, December 2000 – April 2002 schedule: N/A. 

Key milestones: Production Contract Award: Full Rate; 
December 1998 schedule: Oct. 2001; 
December 2000 schedule: Oct. 2002; 
April 2002: Nov. 2004; 
Months delayed, December 1998 – December 2000 schedule: 12; 
Months delayed, December 2000 – April 2002 schedule: 25. 

Key milestones: First Production Article Qualification Testing; 
December 1998 schedule: Jan. 2003; 
December 2000 schedule: Dec. 2003; 
April 2002: Apr. 2004; 
Months delayed, December 1998 – December 2000 schedule: 11; 
Months delayed, December 2000 – April 2002 schedule: 4. 

Key milestones: Marine Corps Initial Fielding[C]; 
December 1998 schedule: Nov. 2003; 
December 2000 schedule: July 2004; 
April 2002: Mar. 2005; 
Months delayed, December 1998 – December 2000 schedule: 8; 
Months delayed, December 2000 – April 2002 schedule: 8. 

Key milestones: Army Initial Fielding[D]; 
December 1998 schedule: Mar. 2005; 
December 2000 schedule: Mar. 2005; 
April 2002: Aug. 2006; 
Months delayed, December 1998 – December 2000 schedule: 0; 
Months delayed, December 2000 – April 2002 schedule: 7. 

[A] This is to be a decision on low-rate initial production; the full 
rate production decision is scheduled for October 2004. 

[B] In July 2000, the program office had slipped this date to March 
2002. 

[C] Marine Corps initial fielding is defined to be about 38 guns for a 
battalion from both I & II Marine Expeditionary Force. 

[D] Army initial fielding is defined to be about six guns to support a 
troop battery in a light-division. 

Source: Lightweight 155mm Howitzer Joint Program Office. 

[End of table] 

Program Cost Estimates Continue to Increase: 

The most recent program office cost estimates, as of April 2002, show 
the total costs for the development and production of the howitzer and 
TAD program to be $1,365.2 million—an increase of $156.2 million from 
the program office’s February 2001 estimate of $1,209.0 million. 
[Footnote 4] Details of these cost increases are shown in table 3. 

Table 3: Increases in Estimated Development and Production Costs of the 
Howitzer and Towed Artillery Digitization (Then-year dollars in 
millions): 

Program: US Marine Corps Lightweight Howitzer RDT&E; 
February 2001: $162.8; 
April 2002: $178.5; 
Cost increase from February 2001 to April 2002: $15.7. 

Program: US Marine Corps Lightweight Howitzer and Towed Artillery
Digitization Upgrade Production; 
February 2001: $543.0; 
April 2002: $621.0; 
Cost increase from February 2001 to April 2002: $78.0. 

Program: Army Towed Artillery Digitization Upgrade RDT&E; 
February 2001: $52.3; 
April 2002: $103.6; 
Cost increase from February 2001 to April 2002: $51.3. 

Program: Army Lightweight Howitzer and Towed Artillery Digitization
Upgrade Production; 
February 2001: $450.9; 
April 2002: $462.1; 
Cost increase from February 2001 to April 2002: $11.2. 

Program: Total; 
February 2001: $1,209.0; 
April 2002: $1,365.2; 
Cost increase from February 2001 to April 2002: $156.2. 

Source: Lightweight 155mm Howitzer Joint Program Office. 

[End of table] 

The cost of the howitzer developmental program funded by the Marines 
increased from $162.8 million to $178.5 million or an increase of $15.7 
million. This increase includes $6 million for extending the program by 
2 years, $4.5 million for testing of the pilot production guns, $2 
million for operational testing, $1.5 million for program management, 
and $1 million for in-house systems engineering. 

The cost of the howitzer and the TAD production program funded by the 
Marines increased from $543 million to $621 million, an increase of $78 
million. More than half of this increase, about $43 million, was for 
about 1,000 design modifications that have been made to the howitzer 
during development. The cost increase also includes about $28 million 
in other program costs including inflation due to program extension as 
well as $7 million for increases in the costs of cannon barrels 
produced by the Watervliet Arsenal. 

The cost of the TAD developmental program funded by the Army increased 
from $52.3 million to $103.6 million, an increase of $51.3 million. 
According to a program official, TAD development costs increased 
because (1) the complexity of developing the software and integrating 
TAD with the howitzer was underestimated, (2) the amount of planned 
testing has been increased, (3) the gun was hardened, and (4) the TAD 
development contract was placed under BAE. Thus, the costs associated 
with these activities are higher than originally planned. The 
acquisition of TAD has been restructured. First, to centralize the 
development and integration of the howitzer and TAD, the Army’s 
development contract with General Dynamics for TAD has been moved under 
BAE, the prime contractor for the howitzer. Second, TAD is being funded 
and developed in two blocks. The current program includes the funding 
for the development and production of the block 1. The block 1 digital 
fire control is to be capable of automatically determining gun 
location, accurately aiming and pointing the gun, providing navigation 
instructions, digital communications, and providing directions for gun 
emplacements. About 10 percent of the software required to complete TAD 
will be needed for block 1 while the remaining 90 percent will support 
block 2. When funded and developed, Block 2 of TAD is to provide the 
gun with greater digital communication connectivity and allow onboard 
technical computation of firing data that will ultimately increase 
accuracy through integration of individual propellant temperatures and 
individual gun muzzle velocity measurement systems. 

The cost of the TAD and howitzer production program funded by the Army 
increased from $450.9 million to $462.1, or by $11.2 million. This 
increase is primarily the result of the numerous design modifications 
made to the howitzer during development and increases in the cost of 
the cannon barrels produced by the Watervliet Arsenal. 

Technical Problems Being Addressed, but Testing Is Still Ongoing: 

The program office believes that all technical problems that MCOTEA and 
we identified have been addressed. In our April 2001 report, we 
identified a number of technical problems impacting the performance of 
the 155 mm gun, all of which the program office had resolved or was 
attempting to resolve through design changes. More recently, MCOTEA 
identified a number of technical issues that it believed would 
jeopardize the successful completion of the operational test and 
evaluation of the 155 mm gun if not resolved. According to MCOTEA, the 
program office has addressed all but one of the issues identified by 
MCOTEA, primarily through design changes, some of which have been 
tested while others have yet to be tested. The one issue still 
outstanding relates to the accuracy of the gun. 

In our April 2001 report, we focused on seven technical problems: (1) 
insufficient spade size, (2) flexure of the saddle assembly causing 
accuracy and bore sight retention problems, (3) faulty titanium welding 
processes, (4) spade cracking, (5) faulty spade latch, (6) spade damper 
that did not operate well in all soil types, and (7) durability of the 
optical fire control. According to the program office, design changes 
had been incorporated to correct these problems although not all had 
been field tested when we issued our report. 

During our current review, we focused on the nine issues that MCOTEA 
believed would jeopardize the successful completion of operational test 
and evaluation on the 155 howitzers. These issues were (1) bore sight 
retention, (2) accuracy, (3) durability of the optical fire control, 
(4) spades, (5) design stability, (6) production representative 
howitzers, (7) compressed test schedule, (8) weapon balance, and (9)
logistics demonstration schedule and products. 

MCOTEA told us that the program office has resolved all of their 
concerns except accuracy through design changes, additional or planned 
testing, and the addition of a low-rate initial production phase to 
provide production representative howitzers for operational testing and 
evaluation. 

According to the program office, the objective accuracy requirement for 
the 155 mm howitzer is 1 mil using the TAD Block I inertial measurement 
system to do the electronic aiming and pointing; that is, the gun’s 
barrel and optical sight must always be pointed within 1 mil of the 
same direction. [Footnote 5] The accuracy requirement for the gun
without TAD is 3 mils. However, the initial developmental guns were so 
flexible that after the guns were elevated or moved from side to side, 
the guns lost bore sight retention, with the barrels and optical sights 
in some cases differing by 12 to 13 mils of pointing in the same 
direction. In addition, thermal effects caused the optical sights to 
move relative to the barrel, causing the gun to lose bore sight. 

The program office has made a series of design changes to the howitzer 
that has improved its accuracy. For example, the parts of the gun 
holding the cannon barrel have been stiffened, which has reduced the 
flexure allowed by the lightweight titanium and insulation has been 
added to mitigate the thermal effects. These and other changes have 
increased the accuracy level to within 3 mils. During December 2001, 
February 2002, and April 2002, Yuma Proving Grounds conducted three 
separate accuracy tests with a developmental gun. A contractor for the 
Army Test and Evaluation Command observed and determined the results of 
the three tests. The gun failed to meet the 3-mil accuracy requirement 
for the first test because a reconditioned fire control unit was used. 
However, a new fire control unit was installed on the gun prior to the 
second test and the gun met the 3-mil accuracy requirement for last two 
tests. The program office has made other design changes that are to be 
incorporated into the pilot production guns and that they believe will
further improve the gun’s accuracy. For example, a titanium balancer 
post (mounting point for the optical sight) is to be substituted for 
the existing aluminum post on pilot production gun 2 to further reduce 
flexure. 

MCOTEA told us that their concerns related to accuracy will not be 
resolved until after they have assessed (1) the developmental test data 
that the program office believes confirms the accuracy of the 
developmental guns at 3 mils and (2) the Army Test and Evaluation 
Command’s report on its observations and assessment of the Joint 
Program Office’s testing of the first pilot production gun for accuracy 
and strength of design. These tests on the first pilot production gun 
are scheduled to occur starting in August 2002. 

Additional Information Being Collected for Low-Rate Initial Production
Decision: 

While progress has been made in addressing technical problems 
identified as part of developmental testing, additional information is 
being collected for the upcoming decision on whether the program should 
enter low-rate initial production. The milestone decision authority--
the Assistant Secretary of the Navy for Research, Development, and 
Acquisition--intends to factor in the final results from the 
operational assessment, the planned testing of the pilot production 
gun, and the independent contractor assessments of production readiness 
and costs. 

To determine the readiness of the program to enter low-rate initial 
production in October 2002, the Assistant Secretary of the Navy for 
Research, Development, and Acquisition-the milestone decision authority-
established the following criteria: 

* Complete an independent production readiness assessment and present 
the results to the Acquisition Coordination Team. 

* Submit an independently validated research, development, testing, and
evaluation, and production cost estimate 30 days prior to the Milestone 
C decision meeting. 

* Provide the milestone decision authority with test results confirming 
the strength of design of the Pilot Production gun per the 
International Test Operating Procedure for Artillery. 

To demonstrate the first criterion, the program office told us that it 
has contracted with the Best Manufacturing Practices Center to complete 
an independent readiness assessment. According to the program office, 
BAE and its subcontractors are currently producing two pilot production 
guns (the first gun is to be completed by July 2002); the intent of 
this production is to demonstrate production readiness. The Center will 
assess the adequacy of production facilities and equipment put in place 
by BAE and each subcontractor to produce the pilot production guns. The 
Center will also assess the skill levels of production personnel and 
the processes and controls being used to ensure production takes place 
in accordance with specifications and other requirements. 

To meet the second criterion, the program office told us that it has 
contracted with the Science Applications International Corporation 
(SAIC) to independently compile a research, development, test, and 
evaluation and production cost estimate for completing the program. 
According to the program office, SAIC plans to develop the cost 
estimate by loading program office cost data into its own cost models. 
The Army and Navy cost analysis centers are to verify SAIC’s cost 
estimate. 

To address the third criterion, the program office will test the first 
pilot production gun for accuracy and strength of design. This testing 
is to be independently observed and assessed by the Army Test and 
Evaluation Command and reported to MCOTEA, which is to brief the 
results to the Assistant Secretary of the Navy. In addition, the
Assistant Secretary is to consider the results of the operational 
assessment in determining whether the program is ready for low-rate 
initial production. 

Agency Comments and Our Evaluation: 

The Department of Defense provided written comments that were generally 
technical in nature on a draft of this report. We incorporated those 
comments as appropriate. 

Scope and Methodology: 

To determine progress in meeting program schedule and cost estimates, we
interviewed officials of the program office, Picatinny Arsenal, 
Picatinny, New Jersey, and obtained, reviewed, and analyzed data. These 
data include key acquisition milestones dates, acquisition schedules, 
and budget requirements program funding documents. We compared these 
data to information previously provided by program office officials. We 
also met with officials from the Assistant Secretary of the Army for 
Acquisitions, Logistics, and Technology; the Assistant Secretary of the 
Navy for Research, Development, and Technology; the Marine Corps Combat 
Development Command, Quantico, Virginia; and the Marine Corps 
Operational Test and Evaluation Activity, Quantico, Virginia. 

In examining technical difficulties affecting the program, in addition 
to meeting with and obtaining information, including test reports, from 
program office officials listed above, we held discussions with MCOTEA 
and ATEC representatives performing the testing, and observed a test 
firing session of the howitzer at 29 Palms, California. 

To determine readiness for entry in to low-rate initial production, we 
reviewed the Department’s low-rate initial production criteria, 
discussed this issue with program office and testing officials, and 
reviewed the program office’s entrance criteria. 

We conducted our work from March through June 2002 in accordance with 
generally accepted government auditing standards and generally relied 
upon agency-provided data. 

Unless you publicly announce the contents of this report earlier, we 
plan no further distribution of this letter until 30 days after the 
date of this letter. At that time, we will send copies of this letter 
to the Secretary of Defense; Secretary of the Navy; Commandant of the 
Marine Corps; Secretary of the Army; Director, Office of Management and 
Budget; and interested congressional committees. We will also make 
copies available to other interested parties upon request. In addition, 
the report will be available at no charge on the GAO's Web site at 
[hyperlink, http://www.gao.gov]. 

If you have any questions, or need additional information, please call 
me at (202) 512-4841. Major contributors to this letter are Jim 
Solomon, Ted Baird, Joe Dewechter, and Gary Middleton. 

Signed by: 

R. E. Levin: 
Director: 
Acquisition and Sourcing Management: 

[End of section] 

Enclosure 1: 

Office Of The Under Secretary Of Defense: 
Acquisition, Technology And Logistics: 
3000 Defense Pentagon: 
Washington, DC 20301-3000: 

July 22, 2002: 

Mr. Robert E. Levin: 
Director, Acquisition and Sourcing Management: 
U.S. General Accounting Office: 
441 G Street: 
Washington, D.C. 20548: 

Dear Mr. Levin: 

This is the Department of Defense (DoD) response to the GAO Draft 
Report, "2002 Update of the 155mm Lightweight Howitzer," dated June 27, 
2002 (GAO Code 120146/GAO-02-898R). While the draft report does not 
make any recommendations, the DoD desires to provide general and 
specific comments which, if accepted, would improve the technical 
accuracy of the draft report. These comments are provided in the 
enclosure. 

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

Signed by: [Illegible] for: 

Glenn F. Lamartin: 
Director: 
Strategic and Tactical Systems: 

Enclosure: as stated: 

[End of section] 

Footnotes: 

[1] See U.S. General Accounting Office, Status Update of the New 155 mm 
Lightweight Howitzer, GAO-01-603R (Washington, D.C.: Apr. 10, 2001) and 
Defense Acquisitions: Howitzer Program Experiencing Cost Increases and 
Schedule Delays, GAO/NSIAD-00-182 (Washington, D.C.: July 28, 2000). 

[2] According to DOD Directive 5000.2, Operation of the Defense 
Acquisition System, low-rate initial production is intended to result 
in completion of manufacturing development in order to ensure adequate 
and efficient manufacturing capability and to produce the minimum 
quantity necessary to provide production configured or representative 
articles for initial operational test and evaluation, establish an 
initial production base for the system; and permit an orderly increase 
in the production rate for the system, sufficient to lead to full-rate 
production upon successful completion of operational (and live-fire, 
where applicable) testing. Directive 5000.2, para. 4.7.3.3.4.1. 

[3] Both MCOTEA and the Army Test and Evaluation Command are 
participating in the independent testing of the 155 mm gun; however, 
MOCTEA has been designated as the lead tester and in this role 
represents the views of both test activities when presenting briefings 
and other information regarding the testing of the 155 mm gun. 

[4] We reported in April 2001 that the program office’s total cost 
estimate, as of February 2001, was $1,250.2 million. This estimate 
included $492.1 million for the estimated production of the Army’s 
howitzers and TAD. However, the program office told us recently that 
they had overstated this cost by $41.2 million, thus the cost they 
should have provided to us for inclusion in our April 2001 report was 
$450.9 million. Therefore, we are using $450.9 million as the baseline 
for this report and are adjusting the total cost estimate accordingly. 

[5] A mil is short for “milliradian”, which is an angular measurement 
that is 1/1000th of a radian. A radian is 57.3 degrees of the arc of a 
circle; 17.7 mils equal 1 degree. 

[End of section] 

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Automated answering system: (800) 424-5454 or (202) 512-7470: 

Public Affairs: 
Jeff Nelligan, managing director, NelliganJ@gao.gov: 
(202) 512-4800: 
U.S. General Accounting Office: 
441 G Street NW, Room 7149:
Washington, D.C. 20548: