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Results tagged with flaps
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user 45534
Surfaces that extend from the wings to increase lift, allowing flight at slower speeds (such as for takeoff and landing).
24
votes
4
answers
6k
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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. … So, why do we use flaps instead of just scaling the clean wing up?
Is it because of concerns over cockpit visibility during landing? …
0
votes
How does retracting flaps help extend the glide of an aircraft?
The short answer is: flaps increase lift, but they increase drag more than they increase lift. … I don't know why this was done, but some aircraft do fly better at lower speed, with flaps slightly down, than at high speed with flaps up …
9
votes
6
answers
2k
views
Can flaps be used to perform rotation and flare?
When the airspeed nears the required value for liftoff, flaps could be lowered to full. … Final approach can be done with takeoff flaps, and just above the runway, instead of pulling back, the flaps could be lowered. …
4
votes
Accepted
How do slats actually work?
So, what is the difference between flaps and slats?
Flaps deflect air already flowing past the wing downward. Slats enable fresh air to flow over the wing. … (NOTE: there are flaps with slots in them. These slots work the same way as slats.)
Flaps can work at zero angle of attack. Slats can't.
Also, just a clarification for the OP about the “droop”. …
0
votes
2
answers
718
views
On large aircraft, why do flaperons not run the full length?
Admittedly, flaps are slow, and speed-limited, so less suitable as control surfaces. But at least, could they not be used for trim? …