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Re: 5 photos uploaded #photo-notice


 

Some more.?
I made a mistake. What you need are fences and not anti cavitations panels.?
Fences are typical devices to "straighten" and separate the airflow over wings.
Here are an excerpt from a lecture I had given some years ago concerning different
aero, hydrodynamic phenomenon. On transom hung rudders, depending on how the leading edge
is placed in the water. From a given speed, air is sucked in on the leading edge. The air destroys a proper water flow and in this way the efficiency of the rudder.
This can be prevented by placing the rudder in a way that the leading edge has an angle of about 4 degree forward. Plus, fences will prevent that air is sucked.
This can be also used on an outboard engine shaft. The prop will be then work more efficient.?
To download the article go to???
Such a fence can be easily made from a piece of 2 mm Al.?

Bernd

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