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Page 46: of Marine News Magazine (June 2015)
Combat & Patrol Craft Annual
Read this page in Pdf, Flash or Html5 edition of June 2015 Marine News Magazine
PROPULSION
Ducted Propulsion for
Inland River Towboats
Photo: Nautican
The mature concept provides proven ef? ciencies in a customized package for varied inland conditions.
By John Eckart he simple, yet highly effective design of what the ma- ally unchanged since the MARIN-developed designs worked rine industry knows today as the Kort nozzle, was ini- exceptionally well at generating increased thrust compared to tially developed by Luigi Stipa and Ludwig Kort in an open propeller of the same diameter. The MARIN nozzle
T the 1930’s. Later, the design was further re