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2. Evinrude Outboard Motors - Wikipedia

   en.wikipedia.org/wiki/Evinrude_Outboard_Motors

   1979 Evinrude 70 HP outboard, cowling and air cleaner removed, exposing its shift/throttle/spark advance linkages, flywheel, and three carburetors. Ole Evinrude was born in Gjøvik, Norway on April 19, 1877; five years later, his family emigrated to the United States, settling near Cambridge, Wisconsin. Interested in mechanics from an early age ...

3. Outboard motor - Wikipedia

   en.wikipedia.org/wiki/Outboard_motor

   In Vietnam these outboards are called máy đuôi tôm (shrimp tail motor), which are smallish air-cooled or water-cooled gasoline, diesel or even modified automotive engines bolted to a welded steel tube frame, with another long steel tube up to 3 m long to hold an extended drive shaft driving a conventional propeller. The frame that holds the ...

4. Propeller - Wikipedia

   en.wikipedia.org/wiki/Propeller

   Bronze propeller & stainless steel rope cutter. Whereas the propeller on a large ship will be immersed in deep water and free of obstacles and flotsam, yachts, barges and river boats often suffer propeller fouling by debris such as weed, ropes, cables, nets and plastics.

5. Voith Schneider Propeller - Wikipedia

   en.wikipedia.org/wiki/Voith_Schneider_Propeller

   The Voith Schneider propeller was originally a design for a hydro-electric turbine. [2] Its Austrian inventor, Ernst Schneider, had a chance meeting on a train with a manager at Voith's subsidiary St. Pölten works; this led to the turbine being investigated by Voith's engineers, who discovered that although it was no more efficient than other water turbines, Schneider's design worked well as ...

6. Contra-rotating propellers - Wikipedia

   en.wikipedia.org/wiki/Contra-rotating_propellers

   Contra-rotating propellers Contra-rotating propellers on the Rolls-Royce Griffon-powered P-51XR Mustang Precious Metal at the 2014 Reno Air Races. Aircraft equipped with contra-rotating propellers (CRP) [1] coaxial contra-rotating propellers, or high-speed propellers, apply the maximum power of usually a single piston engine or turboprop engine to drive a pair of coaxial propellers in contra ...

7. Solutions for cavitation in marine propellers - Wikipedia

   en.wikipedia.org/wiki/Solutions_for_Cavitation...

   While replacing propellers is most efficient on ships that are currently under construction, the benefits from newer propeller materials may outweigh the costs of replacing current marine propellers. [3] Despite the initial cost of the propellers, this solution is significantly cheaper to operate, allowing lower cost long distance transit.