Aerodynamic flexible fairing

Details Aerodynamic flexible fairing Aerodynamic flexible fairing

1984-05-15

1986-04-08

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Nonmetallic resilient mounting

416224, 416239, 416244R, B64C 2733

Patent

active

045809445

ABSTRACT:
The present invention is a flexible fairing for covering rotor connections on a rotor wing aircraft. Such a fairing would comprise a flexible polyurethane foam material which could maintain its aerodynamic shape while in flight yet be compliant enough to allow for changes in blade pitch without adding significant torsional stiffness to the connector. In addition, a flexible urethane rubber coating may be used to protect the foam fairing for abrasion or moisture absorption.

REFERENCES:
patent: 988523 (1911-04-01), Toles
patent: 2210190 (1940-08-01), Stanley
patent: 2852207 (1958-09-01), Jovanovich
patent: 3008671 (1961-11-01), Schneiter
patent: 3331444 (1967-07-01), Toner
patent: 3451644 (1969-06-01), Marchetti et al.
patent: 3549444 (1970-12-01), Katz
patent: 3669566 (1972-06-01), Bourquardez et al.
patent: 4273511 (1981-06-01), Mouille et al.
patent: 4403918 (1983-09-01), Schramm
patent: 4427340 (1984-01-01), Metzger et al.

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