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Engine starting on grades and side slopes |
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|  MIL-H-62185(AT)
3.6.7 Climbing. Vehicle shall climb a prepared 60 percent longitudinal grade in forward and
reverse gear from a standing start on the grade.
3.6.8 Slope operation. Vehicle shall be capable of sustained automotive operation on
40 percent side slopes with each side of vehicle up slope.
3.6.8.1 Engine starting on grades and side slopes. When standing on a 60 percent
longitudinal grade, for not less than 2 minutes, with engine operating under no load between
750 and 1000 rpm, the engine shall be stopped for not less than two minutes. The engine shall
restart in not more than one minute when headed up and headed down grade. A similar engine
starting test shall be conducted on 40 percent side slope with each side of vehicle up slope.
3.6.9 Braking.
3.6.9.1 Stopping. Vehicle traveling at 20 mph, on dry, smooth, level, hard-surfaced roads
free of loose material shall be capable of being stopped by service brake within a distance of
35 feet from point of brake application. Vehicle drift during stopping shall not exceed three feet.
3.6.9.2 Holding. Vehicle, standing on a 60 percent longitudinal grade with brakes applied
and locked for parking, transmission in neutral, vehicle shall remain stationary when headed up
and down grade. For this operation, vehicle shall be combat loaded or with a simulated load of
equal weight.
3.6.10 Turning. The vehicle shall be capable of making continuous 360 degree turns to the
right and to the left. (With the vehicle in gear steer the rear point of outer edge of vehicle shall be
within a 100 foot diameter circle at all times.) When clutch brake steer is employed, the vehicle's
track pattern shall be within a 35 foot diameter circle at all times.
3.6.11 Fording shallow water and floatation operation.
3.6.11.1 Fording shallow water. Vehicle shall ford hard-bottom salt or freshwater crossing
up to 42 inches in depth, without special equipment. With vehicle operating in water up to
42 inches in depth for 15 minutes, the accumulation of water shall be not more than 1 inch in the
bottom of the hull.
3.6.12 Trench crossing. Vehicle shall cross trenches 36 inches in depth and 72 inches in
width at low speeds without stalling or damage to vehicle.
3.6.13 Vertical obstacle. Vehicle shall cross vertical obstacles up to 21 inches in height at
low speeds without stalling or damage to vehicle.
3.6.14 Cab and weapon system controls (non-combat loaded).
3.6.14.1 Cab control system.
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