kdpalmer(at)mweb.co.za
Guest
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 Posted: Tue Apr 03, 2012 11:19 pm Post subject: Pulsar-Aviators: Effect of Flaps |
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Tom,
As you know the controls gives you control but - also creates further
effects of controls. Flaps changes the camber of the wing sometimes called
'variable camber', when going positive it reduces the stall speed and
increases drag, when going negitive (flap)for high speed it reduces drag
(this is well used in gliding) . Increasing the camber with flaps also
changes the centre of lift (further effects of control) which gives you a
progressive nose down attitude.
The Pulsar has a clean wing shape boardering on a basic glider
performance - glide ratio 14:1 so the first three stages gives you
increased lift and stall without adding much noticeable drag at all, only
the fourth stage (full flap) is drag (breaking) noticeable. If you have to
much play in your Pulsar flap control mechanism, you could almost eliminate
the first two stages of flap and not get a full fourth breaking stage.
Some Reading:-
http://en.wikipedia.org/wiki/Flap_(aircraft)
http://en.wikipedia.org/wiki/Camber_(aerodynamics)
http://en.wikipedia.org/wiki/Variable_camber_wing
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