I still have the video of the first flight and can see where it tried to flip over when banked in a modest turn. All the flying was done level and mostly just doing simple circuits, nothing fancy. It was very windy when we flew it but we would have flown other planes in the same wind. The plane was rocking about and far from stable. I can only think a combination of a strong wind and use of the rudder may have contributed as well as the tall fin. We did have too much aileron travel which didn't help either. The wheels were retracted for most of the flight and it was flown reasonably fast. I am not saying there was a design flaw just pointing out that I have had 31 different jet models and was this was the only one that proved an unsatisfactory flyer and did not survive. As you say on finals it moved about all over the place. I guess you would be ok if it was flown in still conditions only.

John

John