SR71 - 40 inches
This is a 40 inch SR71 built of 5mm depron/biofoam It has two tractor motors, one each in the LE of the nacelles.. The plan has some modifications in the aspect ratio and other dimensions, and the details are as below Controls are just elevons on the outer wings (outside of the nacelle) with 1 X 9gm servo each.. there is no moving control surfaces on the central portion of the wing or on the vertical tails.. btw the vertical tail surface are straight and not canted inwards. Note , the LE droop on the other wing panels. The landing gear is tricycle wire skids.. to protect the prop and underside of the aircraft.. have a look at the photographs below The finished aircraft , just before the 1st flight. Notice the bty compartment... because of the low roll/ lateral stability the bty had to be in the center, hence the fuse had to modified.. and before that the CG had to be right.. First flight was done with the CG at 30.5" from the tip of the nose.. ...