Title: Rotor for an autogiro

Abstract: A two-bladed semi-rigid type tilt hub teetering rotor for an autogiro. The otor has a spin-up condition in which it has an relatively small blade angle, and an in-flight condition in which the blade angle is relatively high. The rotor is adapted to alter automatically from its spin-up condition to its in-flight condition upon tilting of the hub at take-off.

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Inventors: Barltrop, Austin (Pretoria, ZA)

Application Number: 707758
Filing Date: 1976-07-22
Publication_date: 1978-05-30
Assignee: The South African Inventions Development Corporation of Scientia (Pretoria, ZA)
Primary Class(es): 416/102 416/140, 416/141
Other Classes:
US Patent Ref:

2045355	Jun, 1936	Hays	416/141.
2684122	Jul, 1954	Perry	416/139.
2684722	Jul, 1954	Perry	416/148.
2724446	Nov, 1955	Hill	416/102.
2946390	Jul, 1960	Pozgay	416/117.
3149802	Sep, 1964	Wigal	244/8.
3204700	Sep, 1965	Milligan	416/148.

Other Refs: Ad. 902081,053,32086,463

Sep, 1967	FR
Mar, 1959	DT
Oct, 1957	NL

Primary Examiner: Powell, Jr., Everette A.
Assistant Examiner:
Attorney: Flocks; Karl W.