Q3 project for replacing Queen Mary, abandoned by Cunard, called for 200,000 shp in ship of 75,000 tons; approximate calculations for 2-shaft ship giving better propulsive efficiency than corresponding 4-shaft arrangement are given; calculations are based on displacement of 45,500 tons, block coefficient of 0.58 service speed of 29 1/2 knots; table shows possible propeller characteristics for 96,000 shp at 120 and 150 rpm.
"Q4" suggestion: twin screws or quadruple?
Mar Engr Naval Architect
Marine Engineer and Naval Architect ; 84 , n 1026
1961
2 pages
Aufsatz (Zeitschrift)
Englisch
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