Comparison of hydraulic and economic aspects of self propelled and towed river vessels; self propelled vessel is more advantageous except in cases when full exploitation of engine is not possible, such as in canals.
Self propelled freighters as tugboats
Selbstfahrer-Gueterboote als Schlepper
Werft-Reederei-Hafen ; 22 , n 18
1941
7 pages
Article (Journal)
German
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