I test flew the Formula today and all went well with the exception of minor engine problems. All flying was done on the prescribed rates for test flying. The conditions were not ideal for test flying due to winds in excess of 12 mph. It took some up elevator and right airleron trim. I performed inside an outside loops, hammerheads left and right, snaps left and right from horizontal and uphill line. Spins from horizontal left and right. Slow alpha fligh both up and downwind. Touch and goes and full stop landings.
I was using a 12X6 J&Z simitar prop and was unable to hold a hover and maintain altitude at the same time. This manuver is extremely difficult. My limited 3D skills became apparent.
In the hands of a more competent pilot this plane will do every thing asked from it. It is definitely a keeper.
As I have previously mentioned there are structual areas and the covering job that need to be corrected by the manufacture. The best ARFs on the market now that have addressed these issues are sold by Carl Goldberg. You pay more for these ARFs but they are well worth it.