MIL-PRF-45333F(AT)
3.3.5 Highway (paved) and gravel roads, and speeds. The trailer shall operate on
highway and gravel roads without damage to the trailer or tow vehicle.
3.3.6 Cross-country payload and speeds. The trailer shall be capable of being towed over
cross country terrain without damage to the trailer or tow vehicle.
3.3.7 Grade and slope operation. The trailer shall be capable of ascending and
descending longitudinal grades and side slopes without slipping or upsetting.
3.3.8 Service brakes. The combined service brakes of the trailer and the tow vehicle shall
bring the combination to a positive stop.
3.3.8.1 Service breaking system. The service breaking system shall not display fluid
leakage and shall maintain air pressure when applied to the wheels of the trailer.
3.3.9 Automatic actuation. The trailer shall be equipped with an automatic actuating
device to apply the trailer brakes upon breakaway from the tow vehicle.
3.3.10 Fording ability. The vehicle and its components shall sustain no damage when
towed through fresh or salt water.
3.3.11 Landing legs. Each landing leg shall be capable of raising, supporting, holding,
and retracting its load without damage.
3.3.12 Turning ability. The trailer shall follow a turning tow vehicle without cramping,
damage or interference.
3.3.13 Wheel and tire balancing. Each wheel assembly, tube and tire shall be balanced to
preclude wheel tramp and drumming.
3.4 Interface requirements.
3.4.1 Design and construction. Trailer components, subassemblies and assemblies shall
be fabricated and assembled into a complete trailer in accordance with the manufacturer's design
and construction (see 6.3).
3.5 Ownership and support requirements.
3.5.1 Reliability. The design goal of reliability of the M345 shall not be less than
6000 Mean Miles Between Failure (MMBF) of 45 percent (%) hard-surface roads, 50%
secondary roads and 5% cross country operation.
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