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Old 16-11-2011, 01:27   #561
Lord Nikon
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Question Re: Plane Spotters Corner

Quote:
Originally Posted by Kymmy View Post
I think that failure of the parachutes is just a symptom of the main cause..

The seats fired unintentionally which means that the firing mechanism might have been the only item to activate, the drogue and main chute might not have activated if the current theory amongst the RAF techs is correct in that the seat control unit itself failed
Would I be corrrect in assuming the drogue and main chute are designed to trigger at an altitude lower than the aircraft's at time of deployment to avoid the possibility of becoming entangled in the fuselage during descent? if so then that would explain it as when you're at a height of 0AGL then there isn't much room for a negative. It would also explain the minimum safe deployment height AGL to allow for full canopy opening.
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