Steerable propulsion units: hydrodynamic issues and design consequences
Author Terwisga, T.J.C. van, Quadvlieg, F.H.H.A. and Valkhof, H.H.
Title Steerable propulsion units: hydrodynamic issues and design consequences
Conference/Journal 80th anniversary of Schottel GmbH & Co
Month August
Year 2001

Abstract
The last three decades have shown a strong development in the market for steerable propulsion units. This paper addresses several main developments and places them in a historic perspective. The major objective of the paper is to present a review of issues relevant to steerable propulsor units. These issues are essentially of a hydrodynamic nature. Although it is thought that hydrodynamic issues often have a heavy impact on the design, the professional background of the authors rather than anything else prompts the choice for an emphasis on hydrodynamic aspects. Starting from the hydrodynamic aspects, we draw several conclusions towards the design and operations of vessels equipped with steerable propulsion units.

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