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English translation: Costa bulb or Costa propulsion bulb


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German term or phrase:Costa-Birne
English translation:Costa bulb or Costa propulsion bulb
Entered by: jyxxer
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09:30 Mar 18, 2007
German to English translations [PRO]
Tech/Engineering - Ships, Sailing, Maritime / ship ruder construction and design
German term or phrase: Costa-Birne
Ruder von Schiffen weisen bei einem Propellerantrieb heute oft eine so genannte Costa-Birne auf. Die so genannte Costa-Birne oder auch Propulsionsbirne dient dazu, dass in Verlängerung der Propellerachse im Bereich des Ruderblattes eine Wölbung ausgebildet ist, die birnenförmig oder zeppelinförmig ausgebildet ist und einen Strömungskörper darstellt. Dieser Strömungskörper hat den Zweck, dass das Gesamtprofil der Nabe soweit verlängert wird, dass eine nur geringe Verwirbelung des abströmenden Wassers entsteht.
Local time: 19:17
Costa bulb or Costa propulsion bulb
abbreviation CPB

(you need to search on "costa" in the link.)
Selected response from:

Jim Tucker
United States
Grading comment
4 KudoZ points were awarded for this answer


Summary of answers provided
4 +1Costa bulb or Costa propulsion bulb
Jim Tucker



11 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
Costa bulb or Costa propulsion bulb

abbreviation CPB

(you need to search on "costa" in the link.)

    Reference: http://ittc.sname.org/Unconventional%20Propulsion.pdf
Jim Tucker
United States
Native speaker of: English
PRO pts in category: 8

Peer comments on this answer (and responses from the answerer)
agree  yeswhere: see also: /www.sva-potsdam.de/news/RoRo2004-NAOS-SVA.pdf (page 8)
6 hrs
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