I had the possibility to make some further tests to day and managed to make some right hand turns but they had to be very wide otherwise the gyro tipped over. Quite different from the left hand turns which are very smooth and can be made very tight. To the left it turns almost like an airplane. To the right it spirals down.

The autogiro has some kind of a delta hub. It is molded in plastic and produced by the company PeAs Rotorblad. They also produce the kit I built the gyro from. The blades can flap up and down totally about 11 degrees. They flap around an axis that is perpendicular to the length axis of the blade. I have seen hubs that have this axis angled forward (difficult to describe). Maybe this would be an improvement. On the other hand it is curious that the stability can be so completely different for left and right turns. Possibly it is an indication that the stability is marginal.

I attach some pictures.

/PO