What is silkspan and how is it applied? I have heard of it being applied over foam
"wet" and then sealed with poly sanding sealer and then painted. Can someone give me
some insight into this stuff?
Thanks,
Greg
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Hello Gordy
Burying your servo deeper (higher) into the wing raises the front end of the pushrod,
causing the pushrod angle to change. To get
exactly the same servo/control surface action as if the servo were flush to the bottom
of the wing you should rotate the control
horn mounting through
With the advent of the Rotary Driver System
http://www.proptwisters.org/rds2/, the servo in a molded wing can be
vertically mounted anywhere. It is simply then tilted so the drive shaft
enters the pocket in the moving surface, which can also be about anywhere
in thin surfaces. This simplifies the
The zero lift angle should still be negative, and
decalage is measured by the profiles respective
zero lift angle, not their bottoms!
For most stabilisator airfoils they are the same,
as flat plate is very common, but flat plate wings
are rare! And even the angle from LE to TE isn't
the zero
Hi Richard. . .your lengthy and educated analysis below Illustrates how
complex getting the best geometry for the conventional servo/output
arm/clevis/threaded rod/keeper/setnuts can really be and what all the
considerations must be to best achieve the intended results.
Truly, the RDS
Gordy,
If you read RCSD once in a while, you would know this already.
Just wondering since we are seeing more and more hollow molded wings out
there and foam cores historically had their servos flush with the bottom skin.
Gordy
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There are several things that could make model flying
safer to the unwary public, while freak accidents, whether
provoked by intentional interfering, or not.
For instance flying models in a public spot while intoxicated
should, in my mind, be as severely punished as drunk driving.
But people do
How many watts per lbs (or kilo) should a scale
motor glider have to look realistic in the air?
25W per lbs?
It is a DAW Ka6E I plan to power :-)! Approx. 3 meter
span.
Just read a review of the Graupner Katana motor glider
and the reviewer wrote that the roll before lift off was
some 70
Gordy,
Didn't somebody do an article recently in RCSD on how to mount servos in a
molded wing? The method mentioned there worked real well on my Hera.
See Ya,
Pat McCleave
Wichita, KS
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A recent combat craze was the Boomerang. Great plane, it's still considered
the best for combat. Now the latest craze is to fly an exceptionally light
Boomerang.
Yes, of course there are several flight related benefits to the low weight and
I suggest it highly. However, one additional benefit
on 6/6/2000 2:03 PM, Bill Rose Haymaker wrote:
The tree lost. It cost me $50.00.
Who got the $$? The tree?
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Eight of our club members played HLG Golf on a local course here in Salt
Lake City, Utah last year and had a blast! We used the foam swimming pool
noodles that kids play with as flags. The noodles are about 3" in diameter
and 8 feet long. I bought a 4 pack at Costco for around $10-12. You can
HAS ANYOUNE TRY THE COCCI HLG FROM HOBBY LOBBY??
THANKS
LUIS
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Bill:
I have used washout on several wings but only if the plane had a
tendancy to tip stall. I put a bit of washout in with the heat gun and
go fly. If it still tip stalls, I put in a bit more until I have a
plane that is enjoyable to fly. The idea is to use only an amount of
washout to cure
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