Main rotor system for model helicopters

Details Main rotor system for model helicopters Main rotor system for model helicopters

1996-10-11

1999-03-09

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Radial flow devices

416132A, 416134A, 416DIG5, 416175, B64C 2746

Patent

active

058791310

ABSTRACT:
A main rotor is provided for use on a model helicopter. The main rotor includes rotor blades having an inboard section and an outboard section. The inboard section includes a higher camber, thin, wide airfoils, and greater pitch and camber relative to the outboard section. The outboard section includes an average chord length that is less than the chord length of the inboard section, The rotor blades also include a blade body that is semiflexible to bend during a crash landing of the model helicopter.

REFERENCES:
patent: 4392781 (1983-07-01), Mioulle et al.
patent: 4927331 (1990-05-01), Vuillet
patent: 4975023 (1990-12-01), Miura et al.
patent: 5137427 (1992-08-01), Shenoy
patent: 5628620 (1997-05-01), Arlton

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