Good information on this thread. I've been flying a scratch built Godfrey 33%Laser I built in 1994. It has the foam rib wings and removable tail and with a G-62 she weighs in at just over 18lbs and will hover at just under half throttle with a Mejzlik 23-10 prop. She was the best flying airplane I had ever flown until my new 34% Extra ( It's hard to believe how stable the new designs are )but I still take the laser to the field just about every weekend. Here are a few picts of the removable tail assembly.