Subject: Inherently beautiful.
From: "Jeff Morris" jeffmo@NoSpam-sv-lokiDOTcom
Date: 10/22/2003 16:33 Pacific Standard Time
Message-id:

My props are Left-Hand, two blade folding. There is virtually no propwalk.
I'm quite
familiar with the phenomenon because my old Nonsuch would walk hard to port,
as would all
the single screw boats I've driven.

I was under the impression that a major contributor to prop walk was the
angle of the
shaft; thus, if its horizontal, the affect is greatly reduced. If this isn't
the case,
what does cause it?

-jeff


OK, sorry, I thought you said right hand .... your boat should back to stbd
..... does it?
Possibly, your lack of prop walk may have more to do with the two blade
configuration than the direction .... I have always considered two bade props,
"speed props" which have little "bollard pull" on their own, thus, little
"walk" characteristics.
I have heard a number of people say that horizontal shafts tend to have less
prop walk... there may well be some scientific reasoning and proof to this, but
I've seen a number of outboards with a major walk to port (right hand).
To me, the major reason for prop walk, is the pitch of the propellor (more
pitch, more walk) as I feel it's this pitch angle, pulling against the water,
sideways, at whatever angle, which is creating the walk. (G Mooron doesn't
agree .... no problem, he might be correct, technically and in many cases
realistically, but my experience says otherwise).
One question otn asked, that you haven't answered ....when trying to walk, does
your bow go first , or your stern?

I'm inclined to think, your two bladed prop configuration, more than anything,
is the reason, but without actually feeling and handling your boat, it's hard
to tell.

Shen