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Old 21st February 2009 | 04:01
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Reluctant737
 
Joined: Sep 2008
Posts: 170
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From: Cambridge
Is 'the impossible turn' possible?

Hi,

Excuse me if I'm being brief, I'm just on my way out the door, but this question has just popped up in my head -

I am wondering if anybody here knows if there's ever been a study into the so called impossible turn following an engine failure (SEP) after takeoff.

I guess what I'm looking for primarily is the relationship between varying performance figures of different aircraft. For example, given a Piper PA28, with a typical climb angle of, say, 5 degrees in still wind, if the pilot were a computer, able to perform 'to perfection', is the turn possible?

Of course there would be numerous variables, such as W/V, aircraft climb rate and speed (climb angle), L/D ratio, aircraft maneuvering performance, surrounding terrain etc.

Really it would be good to get different peoples' points of view on this and different experiences, first or second hand.

Obviously we all know that following an EFATO in an SEP, it's second nature to disregard the possibility of returning immediately, but yep, just curious,

Cheers.
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