Specifications

MUAT’D-1472E
5.7.8.2.3 Pimension$. Hatches shall accommodate suitably equipped and clothed user
personnel in terms of limiting dimensions (see 5.6.3.3) for location and operability, and clearance
dimensions (see 5.6.3.2) for size and passage factors. Where personnel must cxmy equipment
through the hatch, allowance shall be made for clearance of suitably clothed 95ti ~~ntie hands
andlor arms, as applicable. Where possible, hatch dimensions shaII confofm to the Wuhments of
5.7.8.3.
5.7.8.3 ~le-bodv a-
Dimensions for rectan ular _ openings for body passage
f
shall be not less than those dime&ons shown in Figure 3 . TIMdiameter of any
cif’cu.lar hatch shall
be not less than 76 cm (30 in). Diametem of
oval hatches in armored vehicles shall be not less than
43 and 71 cm (17 and 28 in). Where rescue of personnel maybe mxpdred because of environmental
hazards (e.g., toxic fumes) within the work place, larger -s openings for two-person ingress and
egress may be necessary. Where “step down” through a top access exceeds 69 cm (27 in),
appropriate foot rests or steps shall be provided.
TOP AND BOTTOU
ACCESS
/
/y
I
DfMENSIONS A, DEPTH
0. WIDTH
CLOTHING
LIGHT
SULKY
LIGHT
BULKY
TOP AND BOTTOM ACCESS
330
mm[13 in.]410 mm[16in.)
580mm(23 in.] 680mm(27
in.1
1
SIDE ACCESS
660 mm [26 h.] 740 mm (29 In.] 780 mm (30 In.)
860 mm W h.)
NOTE : OIMENS(ONS SHOWN BASED
ON MALE DATA