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Kamewa started as a brand name of the controllable-pitch propellers manufactured by KMW. KMW was founded in the city of Karlstad in 1860. KMW also manufactured pulp and paper machines for paper mills and hydro power turbines. Kamewa was acquired by the British company Vickers plc in 1986. In 1999, Rolls-Royce acquired Vickers. [1]
In marine propulsion, a variable-pitch propeller is a type of propeller with blades that can be rotated around their long axis to change the blade pitch. Reversible propellers—those where the pitch can be set to negative values—can also create reverse thrust for braking or going backwards without the need to change the direction of shaft revolution.
The French firm Ratier produced variable-pitch propellers of various designs from 1928 onwards, relying on a special ball-bearing helicoidal ramp at the root of the blades for easy operation. Walter S Hoover's patent for a variable pitch propeller was filed in the U.S. Patent Office in 1934.
The four ships of this design were built to prove the practicality of the KaMeWa variable pitch propeller system in high SHP applications. Although the system did function well the high initial and subsequent maintenance costs associated with having two 20,000 hp (15,000 kW) B&W diesel engines, together with the inferior steel used for the ...
Her propulsion system drives two variable pitch KaMeWa propellers. [1] Her water capacity is 110,213 litres (24,243 imp gal; 29,115 US gal) and her fuel capacity is 234,455 litres (51,573 imp gal; 61,936 US gal) which provides a range of 7,000 miles (11,000 km). [1] It was on sale for 85M euro.
Variable-pitch propeller can refer to: Variable-pitch propeller (marine) Variable-pitch propeller (aeronautics) This page was last edited on 30 ...