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Stopping and vehicle control test |
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|  MIL-V-62347(AT)
4.7.14 Stopping and vehicle control test. To determine conformance to 3.6.5.1, the vehicle
shall be driven and stopped, as specified, a minimum of three times. Stopping distance of the
three stops shall be averaged to determine the final result.
4.7.15 Holding test. To determine conformance to 3.6.5.2, the vehicle shall be driven up the
specified grade, brakes applied and vehicle observed for movement, then with brakes locked for
parking, the vehicle shall be observed for movement.
4.7.16 Shallow water fording and floatation test. To determine conformance to 3.6.6.2, the
vehicle shall be driven into water of specified depth without special equipment. Water
accumulation shall not exceed specified amount after 15 minutes of test.
4.7.17 Amphibious operation test. To determine conformance to 3.6.6.2, the vehicle shall be
operated amphibiously and performance observed. The amount of water in the hull and leakage
of lubricants from the bearings shall be measured.
4.7.18 Trench crossing test. To determine conformance to 3.6.7, the vehicle shall be
operated over trenches of specified depth and width.
4.7.19 Vertical obstacle test. To determine conformance to 3.6.8, the vehicle shall be
operated over vertical obstacles of specified height.
4.7.20 Climbing, grades, and slopes test. To determine conformance to 3.6.9 and 3.6.10,
after completion of the M901 system integration break-in (see 4.5), the vehicle shall be tested for
its specified operational capabilities on a 60 percent forward and rear grade and on a 30 percent
left and right lateral slope. Azimuth and elevation positions shall be evaluated by proof of
conformance to table VI.
4.7.21 Ramp system test. To determine conformance to 3.6.11, the ramp hydraulic system
shall be operated and examined for evidence of leaks. The ramp shall be operated to fully
opened and closed positions and observed for functional requirements.
4.7.22 Launcher erection test. To determine conformance to 3.6.12.2, and 3.6.12.2.2, the
launcher shall be erected and it shall be verified that erection time is 8 seconds or less. During
hydraulic pump operation, peak current shall be 900 amperes or less and steady state current
shall not exceed 200 amperes. It shall be visually verified that the launcher decelerates prior to
achieving the erect position, that erection locks are in position, that launcher erect and ready
indicators come on, and that AZ and EL stow indicators are in conformance with table VI.
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