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Old 22nd May 2012 | 03:07
  #18 (permalink)  
AeroTech
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Joined: Jun 2005
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From: USA
Thank you for your feedback.

Factoring landing distance didn’t prevent the occurrence of overrun so far. Wind additives might be a possible cause of overrun (among other causes of overrun). It seems the only way to bleed off aircraft speed is to reduce the thrust (at least for jet aircraft).

If you have to bleed off aircraft speed (i.e. reduce the thrust: for example from approach idle to flight idle) during the flare or at very low altitude as recommended by your company or Boeing, you will loss altitude in case of Go-around because of low acceleration/spool up time of the engine (flight idle thrust setting). There is a risk of collision with the ground.
As a layman and in my humble opinion I think there is conflict between bleeding off wind additives (reducing thrust) and performing Go-around.
a) What do you think?

b) Is it easier (efficient) to bleed off wind additives in prop aircraft?

c) Is it possible to bleed off wind additives in jet aircraft using thrust reversers during the flare or before the flare?
(Assuming it is possible to use thrust reversers in flight as allowed in few aircraft).

Feedback appreciated.
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