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Go Back   SailNet Community > Skills and Seamanship > Seamanship & Navigation
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Seamanship & Navigation Forum devoted to seamanship and navigation topics, including paper and electronic charting tools.


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  #51  
Old 02-01-2008
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Quote:
Originally Posted by Plumper View Post
Only go as fast as you want to hit ....

Gaz
Plumer, thats a good one!!!! LOL , congrat
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  #52  
Old 02-01-2008
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Quote:
Originally Posted by Plumper View Post
My shaft line comes straight out and I still get prop walk. All the single screw ships I have driven also get propwalk, to some degree, regardless of the angle the shaft left the hull.
Gaz
I did say that boats with horizontal shafts get almost no prop walk. It very much depends on the hull shape as well. The prop walk generally increases with an angled prop shaft.

Last edited by AndrewScullion; 02-01-2008 at 05:22 AM.
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  #53  
Old 02-01-2008
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Hmm. You're right. My full keeler's shaft comes out of "the deadwood" (actually just the steel hull) nearly "flat", whereas my fin keeler is a good 15 degrees below 90. I don't get propwalk with the full keeler, but I didn't notice to this point because I have been preoccupied with its less than effective ability to back down in reverse!

I use the "coast into the slip" method even more now, because the dynamics of a full keeler are very different than a fin keeler in both subtle and gross ways.
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  #54  
Old 02-03-2008
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How I wish Propwalk could be switch-on to aid manoeuvre and switch-off when backing straight or to stop a forward movement. Any such luck ?
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Old 02-03-2008
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Yep!!!

Bow and stern thrusters...
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