MIL-PRF-44408C
Hand tools are defined as those found in Tool Kit, General Mechanics, Automotive
and Shop Equipment, Automotive Maintenance and Repair (NSN: 5180-00-177-7033 and
4910-00-754-0654, respectively).
3.2.8.5 Door drip edge. There shall be a drip edge over the entire width of
the door. The drip edge shall prevent water rolling down the side of the shelter
from entering the shelter.
3.2.9 Ladder. A ladder shall be provided to allow personnel carrying
equipment, with a combined weight of up to 400 lbs, to enter and exit the shelter
safely while the shelter is mounted on the vehicle without damage or degradation
to the shelter or ladder. The ladder shall have a stowage location on the door as
described on interface drawing 17-2-0035. The ladder must stow securely in all
transportation modes (see 3.4).
3.2.10 Roof Hatch. The Type II shelter shall have a roof hatch which shall
provide for safe and quick evacuation of personnel from the shelter. The roof
hatch shall not be removable from the exterior when locked and shall be easily
removable with hand tools when unlocked. Hand tools are defined as those found in
Tool Kit, General Mechanics, Automotive and Shop Equipment, Automotive Maintenance
and Repair (NSN: 5180-00-177-7033 and 4910-00-754-0654, respectively).
3.2.11 Impact resistance. The shelter shall be capable of withstanding,
without damage, the impact of any of the hand tools as defined in 3.2.10 dropped
onto the top of the floor surface from a height of 30 inches.
3.2.12 Roof access steps/handholds. Roof access steps and handholds shall be
provided for safe access to the roof. These steps/handholds shall be either built
into the shelter or attached to the exterior.
The steps/handholds shall be
designed such that the vehicle/shelter combination does not (1) exceed the legal
highway size limitations imposed by states and foreign countries, and (2) limit
any other modes of transportation (i.e., rail, air, ship). The roof access
steps/handholds shall be designed for the 5th percentile female through the 95th
percentile male military personnel and each step shall be capable of supporting
400 lbs without deformation of the step or shelter.
3.2.13 Interface requirements. The shelter shall conform to the interface
requirements noted on interface drawing 17-2-0035.
3.3
Environmental Performance Requirements.
3.3.1 Marine atmosphere. The shelter, in operational and storage mode, except
for the mounting kit's shock isolator assembly, shall be fully operational when
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exposed to a marine environment equivalent to 25 lb/acre/yr (2.0 g/m /yr). The
shelter shall not corrode or degrade.
3.3.2 Electromagnetic interference (EMI). The shelter shall be capable of an
attenuation level of 60 dB in any location of the shelter, at the following
frequencies: H-field (150 kHz and 14 MHz) and Plane Wave (400 MHz, 1 GHz, and 10
GHz).
3.3.3
Climatic range.
3.3.3.1 Temperature range. In storage, the shelter shall be capable of
o
o
withstanding exposure to temperatures of -70 to 160 Fahrenheit with no evidence
of corrosion or degradation of the fasteners, seals, or other hardware. In
transit, the shelter shall be capable of withstanding exposure to temperatures of
o
o
o
-65 to 160 Fahrenheit. The operational temperature of the shelter shall be -65
o
to 125 Fahrenheit plus solar load.
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