Describes new type of guide-blade apparatus, the Hass contrapropeller, in which guide blades are placed in front of revolving propeller and not behind it, as with normal Wagner type; results of tests made at Hamburg experimental tank on this apparatus and with new wake-using propellers for determining distribution of wake behind ship.
Propulsive efficiency of ships
Times Trade Eng: Supp
Times Trade and Engineering Supplement ; 13 , n 293
1924
1 Fig.
Article (Journal)
English
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