About this Plan
Whirlbird. Free flight helicopter design. Dr Lee Taylor's 1964 Nationals Winning Helicopter.
Quote: "When I received my first helicopter kit as a gift, my only intention was to use the balsa wood to repair my ukie stunt model in case of a prang. Fortunately the stunt model didn't crack-up, and out of boredom I decided to build the helicopter. Fortunate it was! I have enjoyed modeling more since I began building helicopters. I have found them intriguing, challenging, different than what everyone else is building, surprisingly inexpensive and just plain fun. Discover a new dimension - try 'Whirl-Bird' and see for yourself how much fun 'copters can be to build and fly.
I endeavor to design scale-like fuselages for my 'copters because there is nothing prettier in the air than a model helicopter that looks and flies like a real prototype. Whirl-Bird, as flown at the 1964 Nats, was the result of a gradual design evolution rather than a completely new design. The original intention when designing Whirl-Bird was twofold:
(1) to improve general stability and reduce weight over my 1963 design, the Huskie Pup III.
(2) to attempt to design a fuselage that would fly both forward and backward.
Reasonably good forward flight has been achieved with Huskie Pup III and quite accidentally a semi-scale model of the Hughes 269-A helicopter does only one thing well, and that's to fly backwards.
First flights with the Whirl-Bird prototype fuselage were disappointing in that the 'copter was neither as smooth in the air as the Huskie, nor would it fly backwards. Continued fly-ing resulted in a crack-up which was easier to repair by altering the fuse-lage design in a manner which had been previously contemplated..."
Whirlbird, Flying Models, August/September 1965.
Direct submission to Outerzone.
Supplementary file notes
Article pages, thanks to RFJ.
Article pages (in OCR format) thanks to rchopper56.
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