FEATHERING PROPELLER

摘要

A featherable propellor assembly for fitment to a drive shaft (1) comprises a blade carrying assembly (3) which is carried by a hub assembly (2). The blade carrying assembly (3) is rotatable relative to the hub assembly (2) within relative limits of rotation. Blades (5, 6), are pivotally mounted on the blade carrying assembly (3). The relative rotation of the hub assembly (2) and blade carrying assembly (3) provides for different positions of respective stop abutments (14, 13), thus allowing the blades (56, 6) to assume each of the following conditions: (a) a forward drive condition under a forward drive rotation of the shaft (1); (b) a feathering condition when not under drive from the shaft (1) wherein the blades (5, 6) are substantially free to move into an orientation which is aligned with the flow of water past the propellor, and (c) a reverse driving condition under a reverse drive rotation of the shaft (1).