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Conax Florida Corporation
HBU‑12/B Automatic Lap Belt
Product Part Number: 549100‑21
It comprises two high strength double‑reeve lap belt straps incorporating Koch “Black Box” webbing adjusters, for ease of adjustment and improved tightening security.
The buckle assembly includes both automatic and manual opening capability.
In automatic mode the buckle release is actuated by hot gas fed from
the ejection seat as part of the post‑ejection occupant‑seat separation
sequence. For normal egress, manual bailout and emergency ground egress,
buckle release involves a simple one‑handed operation (A double lever
arrangement precludes inadvertent release due to snagging or windblast).
A “Gold Key” device attached to a parachute deployment lanyard
deploys the parachute when the belt operates in the automatic mode. In
manual mode the gold key separates from the buckle without deploying
the parachute. An interlock prevents connection of the buckle without
the gold key in place.
T‑37, T‑38, and F‑5 aircraft
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