I learned a long time ago that by coupling flaps to
ailerons the model would track better. (And yes, every
model) My first experience with this was with a slope
racer (Swift 800) with a short tail moment, and
undersized V-tail. I had trouble getting it to track
properly at different ballasted
Now I'm really confused, even though I know the 'right' answer. I had a
very good flyer sell me on the opposite - just ailerons for turning,
keeping the center section of the wing 'clean'.
I'm torn here - leverage really favors the outer surface, how much do
you really get from the flap help?
Brent,
The wonderful thing about this hobby is that you don't have to
believe anyone! Give the options a personal flight test and decide
for yourself what you like the best. Aircraft design theory is a
wonderful thing but in the end what you are able to demonstrate for
yourself needs to be
PROTECTED]; Soaring Digest
soaring@airage.com
Sent: Monday, August 21, 2006 8:46 AM
Subject: RE: [RCSE] Supra ? Who couples flaps to ailerons?: Drela repost
Brent,
The wonderful thing about this hobby is that you don't have to
believe anyone! Give the options a personal flight test and decide
any difference. Mostly you can't, so don't worry about it. As my OFB Jim Thomas says, "Do that pilot sh*t Bubba."
happy trails Rob G
From: "Douglas, Brent"
To: "Soaring Digest" soaring@airage.com
Subject: RE: [RCSE] Supra ? Who couples flaps to aile
If you are worried about keeping the wing clean, put in more dihedral
and use rudder only.
If you factor in bad designs and bad airfoils, there is definitely no
one 'right' answer.
Douglas, Brent wrote:
Now I'm really confused, even though I know the 'right' answer. I had a
very good flyer
If I couple the flaps and ailerons I like to use them 100%. the
Roll rate is increased and to be honest I can't feel the extra
drag. This flies in the face of conventional wisdom but its what
I like... one big flaperon...
JayOn 8/21/06, Michael Lachowski [EMAIL PROTECTED] wrote:
If you are
Stan, I thought that everyone was using coupled A-F now a days. Dr. Drela has
made it pretty clear that it lowers drag and you have a lot more authority on
less total throw, whether it is a Supra or not.
Marc
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I run coupled flapsat 60% and rudder at 75%for flight and alluncoupled for landing.
-- KenYork County SoaringLighthorse Team YCSSilence is Golden
On 8/18/06, Stan Myers [EMAIL PROTECTED] wrote:
If so, how much? If not, when/why?ThanksStanRCSE-List facilities provided by Model Airplane News.Send
All,
I saved this post from Dr. Drela from October 2003; it's long but
very good. Since he originally posted it to the exchange, I'm
presuming a repost is OK.
Barry Andersen
From Dr. Drela:
Deflected ailerons deform the load distribution
away from the ideal near-elliptical shape, and
If so, how much? If not, when/why?
Thanks
Stan
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