DESIGN: Electrotor-Simplex ~ Rotor - Hub - Overview of Spider

• Consider locating a fixed azimuth at approximately 235º azimuth to assure that the blades cannot hit the spars or pilot.

• Westland patent; 4,080,098, March 21, 1978; Helicopter rotors
• Mario Girodin; Feburary 13, 1979; ~ Rotor for helicopter
• Westland patent; 4,231,705. November 4, 1980; ~ Helicopter rotor
• Westland patent; 4,477,224; October 16, 1984; ~ Helicopter rotor

For preliminary information on the housing for the crown and pinion reduction see Dragonfly drawing; http://www.unicopter.com/0986.html

• The motor should be located at rotors 90º azimuth so that its elevation will not be a problem because the blades are restrained from flapping down at 90º.

• Ref; Dragonfly_Spider.html

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