Questions tagged [flaps]
Surfaces that extend from the wings to increase lift, allowing flight at slower speeds (such as for takeoff and landing).
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How can a designer deal with a strict requirement when designing an aircraft?
I'm working on designing an aircraft with some specific requirements (Vstall, Vmax, Ceiling, Payload, Range, RoC, Slanding/takeoff etc).
I'm following Anderson's and Raymer's ways (trying to find the ...
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At which point in scale reduction do slats and flaps become unnecessary?
Imagine some Fi-156 Storch, and reduce its scale down gradually to 10cm span. Let's assume full scale Fiesler Storch is 100% efficient at, for example, minimizing stall speed.
During this reduction ...
user21228
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How does retracting flaps help extend the glide of an aircraft?
As per the video from Smithsonian channel
BA flight 38's captain retracted the flaps of the Boeing 777 by 5 degrees to extend glide, to travel further. Why?
user49475
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Does the flap settings for the best lift/drag ratio change with speed on the Diamond DA20-A?
As I've recently started time building in DA20, I've noticed the AFM suggests flaps at T/O for a glide. Being very intrigued by this I run across this post. Although I appreciate Peter's reply that ...
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How do slats actually work?
I want to know what is the difference between slats and flaps and the mechanism of the slats
This what I know and researched about flaps:
Flaps are a kind of high-lift device used to reduce the ...
user49475
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Why are heavy flaps better than just a bigger wing?
Flaps increase lift during landing and T/O. But when retracted, they do nothing. The space needed to stow the common fowler flaps can't be used for anything else - fuel or structure. Extended flaps ...
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Why do flaps retract?
Why do flaps retract? I know, it might seem obvious at first, because of drag, but instead of retracting the flaps, can't they just make the flaps flexible enough to get into a reduced drag position, ...
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Does leading-edge droop increase or decrease lift, other things being equal?
Consider a conventional subsonic airfoil in level flight. Typically it is cambered and with a small positive incidence, both of which features contribute to lift.
Now droop the leading edge, as with ...
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Is lowering V1/VR (and runway length required) the only reason for flaps at take off?
I've read that some aircraft (examples include the Saab 340 and the Fokker 100) can perform flapless take offs, provided there is enough runway available. It's also my understanding that, in terms of ...
user12873
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A320 flap settings
Can anyone please explain about the 5 types of A320 flap settings - Up, Flap 1, Flap 2 and FULL. What do these mean? I've read that the A320 gives 2 outputs for the corresponding flap settings. What ...
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Do MD-11 pilots ever use flaps 50?
I'm curious if there is ever a purpose to use full flaps like that? Was it a bit of an overkill?
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Can thrust vectoring be used to enable the use of flaps on tailless delta-winged aircraft?
I'm considering flying wings as well as airplanes with only vertical stabilizer for their compact size, efficiency and high speed.
As I can't find a working example of such scheme, theoretical ...
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Why does lift curve slope increase when Fowler Flaps are deployed?
Below is an image for a Fowler Flap:
Notice that as the flap is deployed, both the camber and the area increase. This change in wing shape modifies the lift curve as follows:
(source: Development of ...
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What does the lift coefficient take into consideration for flaps?
Angle of attack increases lift for two reasons, Camber and increased flow deflection, What reason does the lift coefficient use? Both?
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What is the difference between an aileron and a flap?
I have already been searching Google for the difference between an aileron and a flap, but I am not much satisfied, so now I am asking here on SE.
What is the difference between an aileron and flap? ...
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