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|  MIL-T-62531(AT)
APPENDIX A
Verification Lessons Learned
3.7.8 Ground clearance. The vehicle with rated payload shall have a ground clearance of not
less than ______ centimeters (cm).
Rationale
The specific ground clearances are necessitated by obstacles and ground conditions
commonly encountered in areas where the vehicle must operate i.e., ditches, underbrush, soft
ground, sand, and uneven crosscountry terrain in general.
Guidance
Insert the minimum ground clearance figure in the blank space. Load the vehicle with the
rated payload prior to checking for ground clearance.
Lessons Learned
4.7.8 Ground clearance. To determine conformance to 3.7.8 and with the rated payload,
measure the distance from the lowest part of the vehicle to the ground excluding the wheels and
tires. The clearance shall not be less than ______ mm.
Verification Rationale
Stationing the equipment on a level, hard surface will provide for accurate height
measurement by establishing a uniform relationship of all under carriage components with the
ground. Position the rated payload to obtain maximum load conditions to reflect the minimum
road clearance caused by compressive forces on springs, tires, shock absorbers and other
components of the suspension system.
Verification Guidance
Insert the minimum clearance dimension in the blank space and with the payload properly
positioned measure the ground clearance from the lowest point of the undercarriage.
Verification Lessons Learned
78
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