Comparison between steam-turbine and reciprocating engine as propelling unit; investigation by firm of Escher, Wyss and Co., South America, into variations of towing speed (speed of tug relative to water) to which tug may be subjected, and effects these fluctuations have on engine output and efficiency.
Paddle-wheel tugs
Shipbldr
Shipbuilder ; 37 , n 239
1930
5 pages
7 Figs.
Aufsatz (Zeitschrift)
Englisch
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