Rotor, especially for rotary wing aircraft

Details Rotor, especially for rotary wing aircraft Rotor, especially for rotary wing aircraft

1987-10-09

1988-11-22

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

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

Member movement in rotation plane

416134A, 416138, B64C 2750

Patent

active

047862360

ABSTRACT:
A helicopter rotor with foldable blades has, in the hub and blade roots, holes for mounting the blade roots to the rotor hub with connecting bolts passing through these holes in the operating position of the blades. Additionally, at least one blade of two blades and the hub have aligned holes for holding the respective foldable blade in a folded position, whereby one of the regular connecting bolts passes through the aligned holes, which are located as close as possible to the pivoting point connecting a pitch angle control rod to a pitch angle control sleeve.

REFERENCES:
patent: 3101785 (1963-08-01), Leoni
patent: 3321020 (1967-05-01), Pfleiderer et al.
patent: 3771924 (1973-11-01), Buchstaller
patent: 3874817 (1975-04-01), Ferris
patent: 4227859 (1980-10-01), Gouzien et al.
patent: 4592701 (1986-06-01), Hahn et al.

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