Side propellers for the propulsion of fast boats and aircraft

Details Side propellers for the propulsion of fast boats and aircraft Side propellers for the propulsion of fast boats and aircraft

1981-01-06

1984-01-24

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Working member foldable, pivotable or collapsible to non-use...

416 87, B64C 1128

Patent

active

044273410

ABSTRACT:
A large diameter propeller for starting a watercraft or aircraft has blades which fold forward about tangents along the hub circuit for very high speed operation. Then, the flank pressure radial to the propeller axis will reduce induction, cavitation, noise and centrifugal power, and as a consequence, the radial acceleration of the seized medium (while the speed of the traveling craft is very high) will be so slow that turbulances resulting in propulsion losses are minimized.

REFERENCES:
patent: 33874 (1861-12-01), Baylis
patent: 1947560 (1934-02-01), Manasek
patent: 2526451 (1950-10-01), Bensen
patent: 2986219 (1961-05-01), Boardman, Jr. et al.
patent: 3254725 (1966-06-01), Higgins
patent: 3589647 (1971-06-01), Burkham
patent: 3957229 (1976-05-01), Davis
patent: 4130378 (1978-12-01), Eichler
patent: 4253799 (1981-03-01), Eichler

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