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Old 4th Mar 2016, 12:34
  #18 (permalink)  
FlightDetent

Only half a speed-brake
 
Join Date: Apr 2003
Location: Commuting not home
Age: 46
Posts: 4,321
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Yes, she suits me well. Is the 737 any different in this respect?

The design of the flap lever track is somewhat smart: Before selecting any position, the pilot must pull the lever out of the detent. Balks at positions 1 and 3
prevent the pilot from calling(*) for excessive flap/slat travel with a single action.

(FCOM DSC 27-30-20: A).
(*) ->> "commanding i.e. selecting"

After landing yours truly retracts the flaps to clean from Full and 3 at once as per training. With such repetitive action, it is natural to develop muscle memory that overcomes those "balks".

Now if most of your take-offs are F1, and then after a long long time since LTUS /IOE you do an F3 takeoff, your hand will find the flap lever in a familiar location an the muscle memory could play its game all too well.

Last edited by FlightDetent; 4th Mar 2016 at 12:54.
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