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Old 18-02-2009, 08:47   #1
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azimuth drive
Since azimuth drives seem to be the latest and greatest thing for modern vessels why aren't they being used on sail boats? It seem to me it would make docking and other close quarter manouvering so much easier.
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Old 18-02-2009, 09:20   #2
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Wouldn't a "sail drive" be considered an azimuthing drive?
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Old 18-02-2009, 09:21   #3
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First I'll admit that other than seeing them on tugs in drydock, I know nothing. I'm going to guess cost would be the first answer. Second, so far I've only seen them installed as twins, which makes sense to me to really be able to control your vessel. While a single would work, it then seems to me to become a glorified stern thruster, or something similar to having an outboard.

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Old 18-02-2009, 09:24   #4
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Quote:
Originally Posted by knottybuoyz View Post
Wouldn't a "sail drive" be considered an azimuthing drive?
I think azimuth drive refers to the capability of rotating the "sail drive" in any direction to thrust in any direction.

John
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Old 18-02-2009, 10:57   #5
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John is correct - an Azimuthing Drive rotate (horizontally, providing steering as well as propulsion.

Fischer Panda, for one, has a Diesel-Electric “Aziprop” for sailboats.
DE-Aziprop

An Azimuth is a horizontal angle, usually measured clockwise from a due North reference plane, where north is 0̊, east is 90̊ azimuth, south is 180̊, and west is 270̊.
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Old 18-02-2009, 11:10   #6
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Fischer Panda, for one, has a Diesel-Electric “Aziprop” for sailboats.DE-Aziprop
Not "just" for sailboats! I'm planning on using one for our trawler.
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Old 18-02-2009, 15:21   #7
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I would not trust this system too much; yes, it eliminates a hole in the hull,
as well as need in stern thruster (not common on sailboats, IMHO)
BUT: in case of "catching" something underwater you loose propeller plus a real expensive electric motor (might be a set of total ~$7000, if feathering prop),
with poor chances of replacing it fast.
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Rudders ... are no longer required © FischerPanda
I'd like to see the author in a rudderless boat 300 miles away from the coast

In any case you have to protect these units from all sides VERY well.
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Old 18-02-2009, 19:33   #8
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Tons of drag - not so good for a sailboat.
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