4 and 5 point harnesses
Coff,
Whilst on ULAS ( 69-72) I spent a lot of time at the RAF Institute of Aviation Medicine.
It was there that I saw a prototype 5-point Chipmunk harness. It was explained to me that the problem with the 4-point was of the occupant "submarining" down out of the harness into the cockpit innards in the event of a violent deceleration.
My comment of "so bloody logical and so simple to implement" was met with a polite smile.
It certainly wasn't implemented on any Chipmunk that I flew during my three years on them as a student.
P.S.When flying solo, the four straps tightened up in the rear cockpit showed the potential problem.
Last edited by Haraka; 23rd Mar 2015 at 17:15.