Hello all,

Starting my next project in a week or so. I have blackhawk perky kit; I plan on on replacing the built up wing with a solid one. This is all new to me. What thickness / weight of balsa wood should be used for the wing? Should I use basswood?

Thanks,
Jim

On the Perky I'm building I found clearance problems between the wing and bellcrank. My bellcrank platform sits on the fuselage crutches as shown on the plan, with insufficient room under the wing for a bellcrank and pushrod. I solved this by not sheeting the center area, and extending the sheeting on top of the wing out one rib on each side, using 1/16 ply. I also sheeted the bottom with 1/16 ply out to the same rib, but with the center open.
I'm no engineer, but it seems strong enough. If I ever build another one, the bellcrank mount will be lower.
In your case, using a solid plank wing, hollowing out the center might not be a good idea.
The kit leaves much to the imagination, but the end result is that your Perky will be unique.

              Hello Paul, could you show some of us some close up pics of your tank for the Perky. You showed my son and I at Brodak's a few years back. I would like any details you could offer. Ken

             Paul, thanks for taking the pictures it's much appreciated. Ken