To provide a propeller wherein no uncomfortable feeling is given to passengers by eliminating transmission of noises into a passenger cabin caused by impacts given to the body of an aircraft and no flight limitation is given for driving of the aircraft during descending by eliminating interaction between noises from the blade of a plotter rotor and swirls from the blade during transition flight.
A propeller 10a includes a plurality of propeller blades 9a. Each propeller blade includes a base end section 11a attached to a central propeller disk 12a and an intermediate section 13a wing-shaped in section and extended from the base end section in a wing arc direction between a front end 14a and a rear end 15a. A wing end 19 is provided in the end part of an intermediate part away from the base end section, the wind end includes a front end section 20 extended from a connecting section 21 with the front end of the intermediate part to the front and, in this connection section, a discontinued section or a notch 25 is provided in the front end of the propeller blade.
ALAN BROCKLEHURST
ROBERT JOHN HARRISON
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