Thanks for all the advice. I seems increasing wing area is a must. Scale means nothing if it doesnt fly. I am going to leave the chord the same and stretch the span. That way I wont have to rebuild the plug. Also I am going to make the flaps larger. By the way there is only one engine mounted low in the center of the fuselage. With 7 hp and 40 lbs of thrust from the rotor blades I dont need 2. Besides I still have to tie the two together to even thrust on both sides. I love the idea of using a foam core with inner and outer skins. There will be a box structure around the engine extending up to mount the spar drive tube structure. Im trying to make everything perform more than one task. that way it cuts down on weight. Up to 60 degree, thats the transition point on the real osprey, Heli controls at the swash plate will controll the model. When enough airspeed is gained normal aircraft flite controls take over, thats the harry point. a micro switch will lock the heli controlls out.By the way no way am I going to try to put this in the air without testing it first. Thought about a boom arm mounted on the back of my pickup with spring to zero weight of arm,simialar to those used on magnifying lites, them mounting plane with a ball soket at the bottom. That way I can test speed that controlls become usefull,speed needed for lift,stall speed etc. Since I live in so. california there are large drylake beds to test at.