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Old 21st Mar 2016, 10:34
  #319 (permalink)  
A37575
 
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A missed approach from higher, earlier, and at light weight can be completely different. All it takes is a bit of finger trouble (easy to do when tired) and all of a sudden you're in a completely unfamiliar situation with different modes, attitude, and performance from what you were expecting.
Your point is taken. But if a pilot is current and competent it should not be an unfamiliar situation. The GA procedure is comprehensively covered in the FCTM. The FCTM states at typical landing weights, actual thrust required for a normal go-around is usually considerably less than maximum go-around thrust.

Observations in the simulator often reveal that with an all engines go-around, the tendency is for pilots on a manual throttle GA to instinctively shove the throttles to the stops because they don't have the time to take their eyes from the PFD, to fiddle with N1 readings when everything is happening at once. . With an automatic GA that doesn't happen because the autothrottle initially command thrust levels sufficient for 1,000 to 2000 fpm climb rate.

I found out in the simulators that I was teaching that may be 80 % of the airline pilots have they raw data flying skill so deteriorated that they cannot fly a go around where pitch and bank is involved close to the ground. It usually took a 45 minutes of hard manual flying before they would get the skill back at least within private pilot limits
Why am I not surprised at that statement? Pilot instrument flying competency both manual and auto flight, particularly in a low altitude go-around situation at night or in IMC, is vital. As we have seen from accident reports this is not always a given.


So far no one has mentioned the possibility that harsh pitch control movements (over-controlling) during a go-around often leads to the flight director pitch bar oscillating up and down, exacerbated by the pilot chasing the pitch bar. At low altitude, chasing a flight director pitch bar which momentarily is demanding a nose down input by the pilot because of over-controlling, can easily turn into a steep dive caused by the pilot over-reacting to pitch bar movement.

Last edited by A37575; 21st Mar 2016 at 10:54.
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