MIL-DTL-62270B(AT)
TABLE V. One-thousand mile test cycle.
Mileage and speed 1/
Course
Hard-surfaced roads, either concrete or asphalt
250
(or any combination)
Gravel and dirt roads, with at least 10% (25 miles)
250
of the distance under mud conditions
Level cross-country
250
Hilly cross-country
250
1/Speeds shall be varying up to the maximum safe speed in all
applicable gear ranges depending on course and conditions.
4.6 Materials and design. Conformance to 3.2.2, 3.3, 3.3.1, 3.3.3.1 through 3.3.3.5, and
3.3.4.3 shall be determined by inspection of contractor records providing proof or certification
that materials and design conform to requirements. Applicable records shall include drawings,
specifications, design data, receiving inspection records, processing and quality control standards,
vendor catalogs and certifications, industry standards, test reports, and rating data.
4.7 Operating requirements verification.
4.7.1 Performance tests. After passing the break-in run test (see 4.7.1.26), performance
tests specified herein shall be determined and verified during all tests specified in table IV.
4.7.1.1 Power plant and powertrain test. Verify that the power plant, powertrain and
associated controls operate properly throughout all gear, speed, and steering ranges. Any
malfunction stated in 3.4.1.1 shall constitute a failure.
4.7.1.2 Cooling system test. While the chassis is operating at ambient temperature of
115§ F, verify that the engine oil temperature shall not exceed 250§ F at the heat exchanger outlet,
and the transmission oil temperature shall not exceed 300§ F at the heat exchanger inlet. Any
indication outside the green area on the driver panel or temperatures exceeding the specified
values shall constitute failure.
4.7.1.3 Acceleration test. The chassis shall be operated on a level road as specified. It
shall be verified using method(s) specified in 4.4 that the chassis accelerates from a standing start
to a distance of 200 ft in not more than 13 seconds.
4.7.1.4 Level road speeds test. The chassis shall be operated under specified conditions.
A speed of not less than 30 mph shall be maintained for 10 minutes with engine at full governed
speed. A speed of not less than 2.5 mph shall be maintained for 5 minutes with engine at full
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