MIL-S-58095A (AV)
shall be simple and require at least 5 pounds (22.25 newtons) force. The force
required to release the system with a 250 pound (114 kilogram) occupant inverted
in a crash shall not exceed 50 pounds (222.5 newtons).
3.11.7.7 Adjustable hardware. The lap belt length adjustors shall be located
at the side of the hips below the iliac crests of the pelvis. The shoulder
strap adjustors shall be located low on the chest to avoid concentrated pressure
on the collar bones. The force required to adjust strap length shall not exceed
30 pound (133 newtons), and it shall be possible to easily make adjustments with
either hand. A downward pull on the shoulder harness straps shall tighten the
shoulder harness. An upward and forward pull on the lap belt straps shall tighten -
the lap belt straps. Adjustment hardware shall be spring loaded such that strap
length adjustments do not change in flight. A nominal 1.5 inch (38 mm) tab shall
remain outside the adjustors when the restraint is at maximum extension.
3.12 Performance Characteristics.
3.12.1 Structural strength. Structural strength requirements shall be based on
a 250 pound (114 kilogram) occupant weight plus the weight of the seat and any
equipment attached to or carried in the seat. The required seat strengths and
allowable deflections are specified in Table I. Seat components subject to being
bumped, kicked, or used as handholds or steps shall be designed to withstand
these loads without damage.
3.12.2 Crash force attenuation. The seat shall be fitted with a variable load-
limiting vertical energy absorption device. This device shall be either
continuously variable or provide a minimum of 3 increments to cover an occupant
weight range from 140 to 250 pounds (64 to 114 kg) such that the requirements
outlined in 4.7.4 are met. Motion during vertical energy absorption shall be
parallel to within ± 10° (0.175 radians) pitch to the seat back tangent line.
With the seat bucket in the full down adjustment position, not less than 12
inches (30 cm) of vertical stroking distance shall be provided.
8
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business