Steve McGee wrote: > But in the > "leftover" prints I got of DR Deans there were templates for the 48" 50" and > 33" - two of the 48" were already cut out of birch ply. ( I was thinking > the 50" were an option.?) And that the 33" were for the end. I made my > spar pieces 3.5" longer as I was not going to have 8" of foam on the ends, > but about 5" with the lights mounting to the plywood spar. But I take it > then I should not use the 33" on the end.
You can still use the 33" templates. Just cut out some rectangular holes where the spars will go and slide them on (using the "hump" method shown at http://home.hiwaay.net/~langford/kmlws23.jpg ). I just looked at those templates, which I created and sent to Dean, and they have the humps drawn in already, as well as the spar cutout locations. Also, although the 33" is labeled as an AS5048, it's really an AS5046, which is a good thing. Glue foam to the end of the template and between the caps and it'll sand just fine. The airfoil templates located at http://www.krnet.org/as504x/templates.html show a phantom spar cutout for the 30.69" chord template already, only because that's the way I'd have done it. To answer Kenneth's reply, I have no doubt that the foam spars are structurally fine, but it's a whole 'nuther step that you wouldn't have to do if the caps were longer, and the end result of a straighter wingtip would be automatic, not something you'd have to work for. But if it works for you, that's great! I guess it's just one of my weird preferences... Mark Langford, Huntsville, AL N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford
