Re: Where on earth is that handle?
Never seen a "chest-high" ejection trigger - there's the ones on top for negative gee situations (double ring above the head) and the ones between the legs and on the side of the seat but chest-high?
(Trained on Martin Baker seats when working at BAe "just in case" - anyone would think trusting PFYs near multi-million pound combat aircraft might have undesired consequences...)