Justin wrote: > I was looking over my Wicks book thinking about which plywood to order. There is another >wooden airplane in my hanger using basswood. I know it is heavier by 2 lbs every 4X8. > The options are mahagany $118 for 4X8(10lbs). Birch $82 for 4X8(12lbs).basswood/basswood >$73 for 4X8 (10lbs)
I didn't see a real reply to this so see http://www.woodbin.com/ref/wood/strength_table.htm . Birch wins in every area except density, which is the only area in which Basswood wins (it's lighter than all the rest). Mahogony is the best compromise, since its strength is obviously sufficient (given KR history) with a density close to Basswood (although it doesn't show up on this particular list, I don't think). The plans call for mahogony or birch, and that's worked for everybody so far. Basswood is weaker in every respect... Mark Langford, Huntsville, AL N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford
