Airfoil for a WWII Bipe

[Dylwad]

My Father is scratch building a Helldiver from Wylams drawings and 3 views, basically anything he can get his hands on. He has pretty much decided on a ClarkY airfoil. Anyone see a problem using this airfoil on a bipe? any better suggestions? im about to send a DXF file off to a laser cutter to have ribs cut, and would like some input before i do, the plane will be entered in Scalemasters when it is finished, its 1/5 scale with a .91 4 stroke, the more scale the flight the better so keep that in mind.

Thanks for any input,

Dylan

[Ollie]

Thinning and decambering the Clark Y for a flat bottom and a thickness of about nine or ten percent will result in a more scale like appearance. This will work best if your father builds light for a low wing loading and slow, scale-like landings. If you expect the wing loading to be on the high side, then a true Clark Y would be a better choice for those slow, scale-like landings.

[orectolobus]

If your looking to experiment with some different Clarky
airfoil shapes and output them to DXF format, check out
the Airfoil Design Workshop.

You can easily display and manipulate an unlimited number
of airfoils and adjust the thickness and more.

http://www.tdmsoftware.com/afd/afd1.jpg


AFD web site - More Info (http://www.tdmsoftware.com/afd)

Terry

[Sparky Paul]

According to the "Incomplete Guide to Airfoil Usage", the SBU used..Vought V-142 SBU Navy N-22 (upper) Clark Y (lower)
.
http://www.aae.uiuc.edu/m-selig/ads/aircraft.html

[Dylwad]

Thanks for the prompt replies, its actually a Curtiss F8C-4 Helldiver, which used a Curtiss C-72 top and bottom, but i think we are going to go with the ClarkY as its a prototype, and maybe a little bit heavier than it could be;)

Thanks again,
Dylan