Keith Blom

Greetings. I saw some good help with autogyros being given so I thought I'd see if my problem could be resolved. I built a Gyro Shtick from the plans on outerzone. The build went well but it will not auto rotate. I hold the model into the wind with the rotors tilted well back and nothing happens. I did this with a good 20 - 25 kph wind. The rotors spin freely enough on their oilite bushings when I turn them by hand. On my first set of tests, I used the 1/64" shim described by the plans to get negative incidence in the rotors. When that did not produce auto rotation, I hacked a much larger shim, perhaps 2 - 3 times the negative incidence. The one thing I haven't done yet is put a good airfoil on the blades. But I did not think that was necessary for auto rotation to occur. PLEASE correct me if I'm wrong on this as that would be an easy explanation for my problem. I'm attaching some pictures to get started. Let me know if other shots are needed. Note that these pictures are with the hack for large negative incidence.