K
I don't know who your instructor is but to preach the use of reduction of flaps to control drag under normal operations is a very risk potential practice.
Flaps create lift and drag and there are times when drag is your enemy as well as times when you need it.
Aircraft specific on many types full flap creates more drag than lift and IMO should only be used when assured of a landing and in many cases not used at all.
Only on the very shortest runways/landing strips would I ever take full flap in a Seneca Five.
so to even contemplate removing flap or juggling them up and down like a speed brake is a risky method to use as there is always room for error especially at points of high workload.
To be in a position of having to eliminate that drag means you have got it wrong and its that which needs to be addressed not the use of flaps for drag control in that manner.
There are extreme occasions when removing that drag could save your life and you should be aware of that drag and that option but again its indicative of getting it wrong and should only be used in extreme situations usually engine out. But again why would you take full flap engine out until you are assured of landing from maybe 100 feet agl and when the profile is right to do so?
Pace
Last edited by Pace; 14th May 2015 at 09:48.