B737 flap question
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Join Date: Mar 2004
Location: north pole
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B737 flap question
I wonder if you select flaps 40 a few knots below placard speed, will they immediately come out, or will they delay until passing 153 (-300/500)?. If this is the case, it is somewhat similar to the logic that retracts them at 158, and re-extend at 153.
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Join Date: Dec 2006
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They will come out ! Though on the 300/500 you won't be using F40 too often... (Unless it's CAT 3 or very slippery/icy out there or if you have a significant tailwind of course...) I wouldn't worry about the flap load relief too much on the 300/500 mainly because with the landing weights and corresponding Vref's it shouldn't mean a problem. At least I have never experienced it anyway.
