Item #28436 Twelve Years of Pioneering in Rotary Wing Aircraft. G. M. Bellanca.
Twelve Years of Pioneering in Rotary Wing Aircraft.
Twelve Years of Pioneering in Rotary Wing Aircraft.

Twelve Years of Pioneering in Rotary Wing Aircraft.

Philadelphia: Pennsylvania Aircraft Syndicate, Ltd., 1938. Paperback. "The achievement of feathering control is as important to the success of rotary wing aircraft as the adoption of the aileron to the airplane from the early warping wing control." "The following pages illustrate the various steps though which this scientific achievement has been made." 12mo, 16pp, pamphlet, tan card covers, gold title on front, staplebound. Damp stain, top corner chipped. OCLC: 79944214. Good. Item #28436

Price: $125.00

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