1973 AIRCRAFT EJECTION SEAT BALLISTIC POWERED RESTRAINT REEL TESTS LABORATORY FOOTAGE 45264

Описание: Dating to 1973, this Pacific Scientific Co. test footage shows a human subject as well as a test dummy on an ejection seat mock-up. Seat restraints are clearly shown, so most likely this footage represents a test of that system. (Pacific Scientific was in fact sued by a rival company Aerotech Industries, over patent rights to a "inertia-operated safety apparatus for use with body harnesses which automatically functions to safely retain the pilots in their seats during crashes and the like.")

Restraints such as those shown are extremely important in an ejection, as they reposition the pilot's back against the seat to properly position the body during an ejection or crash sequence, reducing the risk of spinal injury. Modern seats such as ACES II and V use a ballistic powered inertia reel (BPIR) for this purpose. At (8:30) and at (9:37), slow-motion footage shows how the restraints operate to pull a slumped pilot backwards to proper position.

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