Firm of T. Zeise of Altona, Germany, have produced type of built propeller which preserves efficiency of solid propeller; new type avoids usual ugly form of boss, but has boss of shapely torpedo form of forward diameter about equal to that of propeller post bossing, thus securing efficient streamline flow in vicinity of boss. (English translation) (See also Schiffbau vol. 28, no. 21, Nov. 2, 1927 p. 482, 2 figs)
A new type of built propeller
Propeller mit Aufsatzfluegeln und ovalen Flanschen
Marine Engineer and Motorship Builder ; 51 , n 606
1928
Aufsatz (Zeitschrift)
Englisch
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