3343V <33...@swbell.net> wrote: I'm considering adding an inch of foam to the bottom of the fuselage, then sanding a curve on it and glassing the whole thing. Don't know if the reduction in drag is worth the weight, though. --
Hi Steve, I have some experience in doing what you plan to do. Adding that foam for what? Drag reduction? The cowling will end up lower than the fuselage plane right? More weight not needed. IMHO. If you did decide to do it, you need to have one layer of cloth laminated to the wood structure to create the sandwich panel, then on top of that foam and I would use boat cloth too reduce the weight. If you are not careful with the resin and foam the weight will bite you in the butt. The standard KR2 was 64 lbs at the boat stage with center spars and fittings. Mine is 80 lbs. I have streched mine to 24", and 6" wider and 2" taller. Make sure you use the method as described by Mark Langford, where you say out the cloth on plastic sheeting, so you can add just the right amount of resin to the lay up. That really saves weight. Good luck and good building. See my fuselage construction @ the link below. Ron Smith Kr2ssxl Cypress Ca U.S.A. mercedesm...@yahoo.com http://ronsmith.myphotoalbum.com/albums.php
