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Article: Reinventing the propeller: an innovative marine propulsion concept--as old as the invention of the propeller itself--will finally make its commercial debut next year in Japan. Jon Excell discusses the CRP Azipod.(Power Transmission)
- Article from:
- The Engineer
- Article date:
- July 11, 2003
- Author:
CopyrightCOPYRIGHT 2003 Centaur Communications Limited. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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ACCORDING to E L Wisty, Peter Cook's hilarious park-bench philosopher, the wheel was invented by a caveman called Drodbar. Unfortunately he called his invention the bandanbldderstiddle while his commercially minded friend, Gorbly, copied his idea, called it a wheel and took all the glory.
The screw propeller, another important milestone in mankind's propulsive history has a slightly less murky background. It was invented in the 1820s by Swedish engineer John Ericsson, and is still the dominant form of marine propulsion today.
In 1836 Ericsson proposed and developed an interesting variation on his brainchild: a system with two propellers behind each other ...