After a lot of crashes I had 5 successful flights with my autogyro today. And that is after having modified it with a higher pylon to improve the roll stability. I also had to decrease the angle of attack of the blades to make the rotor spin up quicker. And it worked.

However there is still a problem. It has good stability when rolled to the left. This means that I can roll it to initiate a left turn and it will keep the bank until I roll it back. But as soon as I roll it to the right it will bank heavily and spiral down. The only way to save it is to quickly straighten it up by giving left roll. So at present time right turns must be avoided.

I wonder what could be wrong. Could it be that the fin area is too small? Or do all autogyros behave like this?
The rotor has clockwise rotation.

/PO