Review of official report to Hamburg Tank Society of experiments made during last 2 years upon 5 twin-screw motor craft on Danube River; author investigated numerous cases of damage and finds that where blades are merely distorted torque at constant revolutions is reduced; investigates torsional oscillation by propeller shafting showing unsuitability of 3-bladed screws driven by 6-cylinder engines and comparative freedom from vibration following use of 4-blade screws. Abstract translated from Werft -- Reederei -- Hafen, Nov. 7, 1927, p. 445.
Propeller experiments on river vessels
Mar. Engr. Motorship Bldr
Marine Engineer and Motorship Builder ; 51 , n 605
1928
Article (Journal)
English
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