Since I'm partial to foam wings,I like the looks of your design! Could you please answer a bunch of questions? Like are there any spars in it ? How about the span and chord ? Any reinforcement for the pod and booms? Is that pink foam and if so is it covered? Looks like it would be pretty quick to build. Thanks in advance
Blue Skies. ......Tim
Tim,
It is made out of Home Depot 2" x 24" (pink) foam. Wing chord is 8". The airfoil profile is from an Adams' Special plan.
I started with a Flying Clown airfoil and it flew a bit too fast. White foam would be a lot lighter.
The assembled wing( 2" motor mount foam blocks, Dacron fabric reinforcement, and 5/16 hardwood LE dowel) weighs
4.5 Oz. Engine pod and tank weighs 3.9 Oz w/o engine. Dacron strips help keep the trailing edge from separating when
the plane lands on it's nose. Strips are "painted on" with polyurethane. The hardwood dowel never has broken so far.
The only "spar" is the leading edge glued in with "TiteBond". If I added spars, they would probably be at the high point
in dado slots made of aluminum tube. Bend flex is not a problem, cracking on centerline when landing on the nose is.
Tip weight is a 1/4-20 carriage bolt tightened across the foam between a pair of lite ply plates.
Most often we've broken the stabilizer booms which were made of lite ply. I have added popsicle stick doublers
at the trailing edge to stiffen it up a bit; we'll see this week.
Out of six "wings" I have rebuilt the engine pod assembly twice.
Rex