Notice the total freedom from airframe shake on Joe’s Aviomania gyro that usually acompanies rotor vibration.
The rotor is Dragonwings of 9” chord using a Boeing VR-12 airfoil and with drag struts to stiffen it inplane.
The absence of 2/rev is explained in my post #82 in the Swedish Yoke thread:
'Ol Otto probably used bamboo because..... that's the best material he had from which to choose. If he had aluminum available...... I bet he would have used it. Heck, maybe Otto would have used a 3D printer. Bamboo is not homogeneous; you're right, no 'aviation grade'.
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