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. (see also English translation in Mar. Engr. and Motorship Bldr., vol. 51, no. 606, Feb. 1928, p. 76)
A new type of built propeller
Propeller mit Aufsatzfluegeln und ovalen Flanschen
Schiffbau ; 28 , n 21
1927
2 Figs.
Aufsatz (Zeitschrift)
Deutsch
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Engineering Index Backfile | 1928
Special built-in frame for aerospace liquid propeller
Europäisches Patentamt | 2021
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