I have just built a Papaya III for fun. Bit untraditional in that I was tired and bored so I built it out of 3mm Depron. carbon spares, 9grm 1.5 kg/cm sail servo 3.7 grm rudder servo and operated by a scrap Lama V4 4 in 1 2.4 Ghz system. Sails florists Mylar and hope!
Deck covered in Fablon. Maiden tonite (i hope). Battery ex helicopter 7.4 v 900mAH lipo.
sounds fast… any pictures?