Propeller with blades having regressive pitch

Details Propeller with blades having regressive pitch Propeller with blades having regressive pitch

B - Operations, Transporting

63

H

115/23

B63H 1/26 (2006.01)

Patent

CA 1267045

P-301 TITLE Propeller with Blades Having Regressive Pitch. ABSTRACT A propeller (10) including a hub (12) and a plurality of blades (16) having a leading edge (22), outside edge (24), tail edge (26) and inside edge (28). Each of the blades (16) extend substantially radially from the hub (12) and include a body portion having a regressive pitch from the leading edge (22) to the tail edge (26) and cupped portions (30) and (32) extending along the inside edge (28) and outside edge (24), respectively. A method of making the propeller (10) includes the steps of forming the hub (12) and forming the plurality of blades (16) having a regressive pitch and extending substantially radially from the hub and forming the first cupped portion (30) extending along the inside edge (28) and the second cupped portion (32) extending along the outside edge (24).

519821

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