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Table IV. IPT test profile, 6,000 mi. 1/ |
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|  MIL-S-62549(AT)
4.3.1.2.2 Preliminary inspection. The first production and initial production semitrailers shall
be subjected to an inspection, examination and road tests by the responsible Government
inspection element and Government Procuring Activity. This inspection will be a thorough and
complete inspection for conformance to the requirements of the contract and specification in their
entirety. Road tests shall be performed as specified in 4.5.2.
4.3.1.2.3 Vehicle disposition. After completion of inspection, the first production semitrailer
shall remain at the manufacturing facility, as a production sample, and be the last vehicle of its
type shipped on the contract. The semitrailer may be released sooner at the discretion of the
contracting officer. The contractor shall service and maintain the semitrailer during this period in
accordance with applicable documents for care and preservation while in storage. All
configuration changes taking place after the first production inspection, shall be made to the first
production semitrailer so that the semitrailer will be representative of the current configuration
throughout the life of the contract. No configuration changes may be implemented on production
vehicles after Government conditional acceptance of the first production vehicle (applicable
vehicle type) without written authorization from the contracting officer.
4.3.2 Shakedown tests. Following the first production trailer inspection and road test, the
trailer shall be subjected to a 2,000 mi shakedown test, by the contractor, in accordance with table
IV, except that the mileage shall be 1,000 mi on hard surface and 1,000 mi on secondary roads
with 900 mi of each type surface at maximum payload and 100 mi of each surface without
payload, utilizing the contractor equipment. A written test report will be submitted as per
contractual requirements.
TABLE IV. IPT test profile, 6,000 mi. 1/
Course
Mileage (mi)
Speed (mph) 2/
Loading condition
Hard-surfaced
2,700
55
rated payload
road 3/
300
55
empty
Improved
secondary road
Munson gravel
1,114
35
rated payload
150
35
empty
Churchville "C"
1,114
35
rated payload
100
35
empty
Belgian block
192
35
rated payload
30
35
empty
Off-road 4/
300
10
rated payload
1/ IPT test to be conducted at Aberdeen proving ground.
2/ Speeds shall be up to and including values specified.
3/ Hard-surfaced road such as Perryman high speed paved.
4/ Off-road (Level to slightly hilly) such as Perryman "2".
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