Thanks, THOJO! I don't want my planes to be combat pigs! So far I've got a 64 inch flying wing put together all mocked up with out covering and it weighs 2lbs 1oz. I sunk in a 3/8 inch dia. kite rod into it, and figure the rest of the strength would come from strapping tape, so I suppose I'll just keep winding it with tape until I reach 38 ozs, then finish up with packaging tape or FASCAL.