Ok, not quite Q500, but we race these with bushing .40's. I hear how light some of the foam wings are here, my first one I cut my wing, and put a few spars, some CF, and glassed it, I probably used too many layers (.75 cloth), too thick epoxy, but it came out almost 27oz. I re-built a crashed stocker from another member, and the stock foam sheeted wing is 24oz (these are complete with servo) I'm building another stock kit now, so I may be able to make them lighter, but its glued together, le, and te on, no ail or servo, and it's at 15oz. How do you guys build the light foamies? Maybe the glue they use is heavy, the airfoil is thicker (like a E473?) so I know it will be somewhat heavier. The sweep is another problem (glue joint adds weight) and they use 1/4" balsa for wing tips. Any tips you give give me are greatly appreciated! And also any for the entire plane too... for a pic of them see click on this..
http://racingrookies.tripod.com/rookies_005.htm