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Old 04-07-2016 | 06:22 AM
  #30  
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Timbo
Runs with scissors
 
Joined: Dec 2009
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From: Going to hell in a bucket, but enjoying the ride .
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The 777 has Thrust Asymmetry Compensation. When it first came out, it was so good at putting in enough rudder to keep you going straight, some guys wouldn't realize they had lost an engine (in the sim) so the FAA made Boeing dial it back a bit, so now you do feel it when you lose one, but only a slight amount of rudder pedal input is required to keep it going straight, as opposed to a V1 cut with the "TAC Inop", which requires the usual amount.

On my 777 check ride, of course I got a V1 cut, but since we had been doing them with the TAC Inop for a week, I instinctively put in Waaayyy too much rudder, because on the chekride, the TAC was working! I told the IP,

"HEY, turn that thing off and I'll show you how it's done right!"

Talk about 'negative training'!

Another example of negative training, we had a crew who did lose an engine shortly after takeoff and the pilot flying hand flew it around the pattern and back for a landing. When someone doing an investigation asked him, "Why didn't you use the autopilot?" he said, "I forgot we were allowed to use that for an engine out!"

That was because on every checkride in the sim, we were required to demonstrate we could hand fly an engine out departure, approach, missed approach and back to a landing. So when it actually happened for real, he reverted to his training, which was to hand fly it.

Since that event several years ago, we are now 'allowed' (and required) to use the autopilot for an engine out approach, even an auto land, if the airplane is certified for it, and I'll bet you'd have to explain -why- to someone, if you didn't use it, to include an autoland, if wx conditions and winds were within limits.

Last edited by Timbo; 04-07-2016 at 06:35 AM.
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