PPRuNe Forums - View Single Post - Police helicopter crashes onto Glasgow pub
Old 19th Dec 2013, 09:19
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cattletruck
 
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Originally Posted by skadi
The good engine will take over. F. e. if you fly with 2 x 55% TQ, when in OEI you will get ~110% TQ on the good engine ...
Thanks skadi, I understand that occurs when the bad engine stops completely, but what if it's surging, banging and up to all sorts of bad behaviour on it's way out, can anyone hazard a guess what the engine indicators would show as the FADEC of the good engine fights the FADEC of the bad engine until the bad engine finally stops turning?

The old hydro mechanical FCUs were relatively slow to react to transient demand - which depending on the circumstances could be a good thing. New electronic metering systems are quite capable of responding in milliseconds which under non-normal conditions could cause more problems than good.
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