Specifications

5.14.3.5
MIL-STD- 1472E
Inclines and stairs and ladders.
5.14 .3.5.1 Amzleof incline, The type of structure in relation to angle of ascent shall be as
specified in Figure 33.
5.14 .3.5.2 Hand and foot surface. Hand rails or gripping surfaces and nonslip foot surfaces
shall be provided for ladders. Nonslip treads shall be provided on all stairs. Safety bars or chains
shall be installed across stair or step openings. Handrails or hand holds should be provided when it is
necessary for cmw members to move between different locations while the vehicle is in motion. The
handrails or hand hold shall be 91 cm (36 in) above the walking surface.
5.14.3.6 Floors. Passage floors shall be provided with nonslip tread or other high friction
surface.
5,14.4 Emergency evacuation.
5.14.4.1 GeneraJ criteria.
5.14,4.1.1 Simplicity. The simplest possible escape mode, consistent with safety and
effectiveness, shall be provided.
5.14 .4.1.2 Evacuation time. Emergency evacuation (after crash landing) of the crew members
shal1be possible within 30 seconds, using on]y one-half of the exits. Emergency evacuation (after
crash landing) of all passengers and crew members shall be possible within 60 seconds, using only
one-half of
the exits. Emergency doors and exits shall be readily accessible, unobstructed, and quick
opening from both si&s in three seconds or less.
5.14.4.1.3 Cutaway areas. Areas of the vehicIe structure whichatn be chopped through with
axes in emergencies shall be clearly marked. Axes shall be provided and adequately labeled.
5.14.4.1.4 Movable articles. Provision shall be made for securing movable articles within the
vehicle.
5.14 .4.1.5 Exterior protrusions. The design of the escape system shall preclude personnel
contact with exterior vehicle protrusions during emergency evacuation.
5.14.4.1.6 Evacuation aids. Where hatches or door sills are more than 183 cm (72 in) above the
ground, evacuation aids such as inflatable slides, slide poles, ladders, or ropes shall be provided.
Ropes, where employed, shall be attached to the top of openings and stand off from the structure to
permit use by more than one person at a time.
5.14.4.1.7 Handholds. Handholds shall be provided
to assist personnel escape after crash
landing or ditching. Handholds shall be designed to accommodate personnel wearing either
lightweight and medium weight gloves or cold weather gloves and mittens.
5.14.4.2 Escape exits,
5 14,4.2,1
l%ne~encv lighting. Emerpencv lighting with self-contained power shall be
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provided at or near each em~rgency m nw-n-udexit. Lighting shalI be automatically energized when the
~Ai& is WbjWLQ conditions rcqtiing such Ii@l. The fixture shall bc turned on or off from a w~’itrh
accessible [o the vehicle commander. The fixture shall be removable for use outside the
vehicle during
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