Pressure signal can be obtained from summation of pressure fields of its 2 components as though 2 propellers operate as separate units; vibratory characteristics are superior to equivalent single propeller having number of blades of one component, delivering same thrust at same revolutions per minute; effect of forward propeller on aft is much greater than effect of aft propeller on forward propeller. (See also Stevens Inst Technology -- Davidson Laboratory -- Report 858 Sept 1961 68 p)
Pressure field near counterrotating propellers
Int Shipbldg Progress
International Shipbuilding Progress ; 9 , n 89
1962
17 pages
Article (Journal)
English
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