Results of experiments carried out at new shallow-water tank at Hamburg; investigations include: determining most efficient type of river tug for service on Rhine; value of increased area is clearly shown; for same area, screw tunnel tug is 7.5 per cent better than flap tunnel tug; subsequent tests showed twin-screw Diesel tug with propeller below keel to be most economical.
Model tests on twin- and quadruple-screw river tugs
Bericht ueber Versuche mit Mitteln der Gesellschaft der Freunde und Foerderer der Hamburgischen Schiffbau-Versuchsanstalt G.m.b.H.
Werft-Reederei-Hafen ; 9 , n 17
1928
3 pages
3 Figs.
Article (Journal)
German
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