Specifications

MIL-STD-1472E
TABLE XXVII. Recommended
clearances around equipment operator’s station
to accommodate the 9Sth percentile soldier dressed in Arctic
clothing. Operator seat in rear most position (Figure 51)
,—
——.——-—— ..—--—
—?
A.
B.
c.
D.
E.
F.
~:’
~’
1
; 1.
2.
, 3.
; 4.
:5.
! 6.
7.
~8.
I 8.
Elbow (dynamic)
Elbow (static)
Shoulder
Knee width (minimum)
Knee width (optimum)
Boot (provide adequate clearance to operate brexikpedal without
inadvertent acceleration operation)
Pedals (minimum)
Boot (provide adequate clearance to operate accelerator without
interference by brake Peda!)
Head (SRP to roof line)
Abdominal (seat back to steering wheel)
Front of knee (seat back to manuai controls on dash)
Seat depth (seat reference point to front edge of seat pan)
Thigh (under side of steering wheel to seat pan)
Seat pan height
Boot (front of seat pan to heel point of accelerator)
Minimum mitten Ckaranee SIwnd steering wheel
KrmtAeg-thigh (brake/clutch pedals to lower edge of steering wheel)
91 cm (36 in)
71 cm (28 in)
58 cm (23 in)
46cm(18 in)
61 cm (24 in)
15cm (6 in)
5 cm (2 in)
15 cm’ (6 in)
107 cm (42 in)
41cm(16in)
74 cm (29 in)
41cm(16 in)
24 cm(9.5 in)
38 cm (15 in)
36 cm (14 in)
8cm (13 in)
66 cm (26 in)
I
5.12.2.4 Bwk-rest @.
Back-rest angle should be not more than 110° fim horizontal. If
on]y the lumbar area is supported, the back.mstangle of tilt should be 95-100° for erect operators.
5.12.2.5 Seat Pan. The seat pan shall be flat and made from a rigid material.
5.12.2.6 Seattxd
ding. Seat padding should be kept to a minimum, but it should be resilient
enough to keep the operator’s body from contacting the seat bottom during severe vibration. Seat
padding made of foam-type material should be adequately
ventilated.
5.12.2.7 Seat beks. A.!]administrative type vehicles shall have safety seat belts. Seat belts
should be instaIl=hr type vehicles except when they interfere with operational mqui.mments.
5.12.3
Codrds.
5.12.3.1 Design. Controls shall not be adversely affected by distortion, shock, or vibration of
the vehicle.
5.12.3,2 Steering. In case of power steering assist failure, the steering gear shall afford the
~q-watmstlfficient mechanical advantaee to guide the vehicle during an emergency stop or during
10W-
speed
operation (See Table IX for quar;timtive data.)
5.12.3.3 Pedals. Foot pedals shell accept (he weight of the operator’s foot without initiating
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