Writer doubts accuracy of Teddington data; first point is relatively high-thrust deduction figure, and fact that it decreased with speed; considers 0.835 propulsive coefficient in table referring to ship speed of 8 knots; attempt made to prove inaccuracy by showing absolute value of 1.33 reached by relative rotative efficiency of 8 knots; asserts that Teddington torque apparatus is erroneous by approximately constant negative amount.
The Teddington self-propelled model
Shipbldg. Shipg. Rec
Shipbuilding and Shipping Record ; 32 , n 16
1928
2 pages
Aufsatz (Zeitschrift)
Englisch
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