Tandem gyro plans

[joe nelson]

I've spent the last weekend cleaning and modifying my gearboxes.

The modifications were changing the air vents by 90* and changing the fill cap into a sight glass.

I was also trying to determine the amount of force required to turn the shaft. It measured 15 pounds but I have little confidence with this number. A torque wrench was used to turn the input shaft where it measured 15 pounds.

 

[joe nelson]

The combination of two motorcycle gearboxes to couple the front and rear rotors has presented some issues. The drag created by the mating of the gearboxes has too much drag to be started by a normal running take off. At this point, this problem may require partial power.

My major concern is without addition power a tandem gyro may not be able to fly without power to the rotors.