Andrew:
It is quite common to have an offset angled prop shaft. Most if not all
C&C 30 MK I's have angled prop shafts......other C&C models as well.
My understanding for it, rightly or wrongly, is first to allow for the
removal of the prop shaft without having to drop the rudder. Seems
reasonable.
Secondly, as I understand it, with a right turning prop (clockwise as
mine is) it offsets the slight effect of the bow turning to starboard in
the forward movement with the wheel (rudder) center lined.
I don't think it is a design flaw. Ask the C&C guys if it is?
Rob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
On 2016-10-23 11:59 AM, Andrew Burton wrote:
No kidding, Rob! I haven't seen a builder do that before. I'd call it a design
flaw.
Andy
C&C 40
Peregrine
Andrew Burton
61 W Narragansett
Newport, RI
USA 02840
http://sites.google.com/site/andrewburtonyachtservices/
+401 965-5260
On Oct 23, 2016, at 10:38, robert <robertabb...@eastlink.ca> wrote:
Andrew:
My prop turns clockwise, therefore, when in reverse, the stern of the boat is
initially pulled to 'port' until there is sufficient water flow over the rudder
to gain steerage.
Now add to that, my prop shaft is not centered, it is angled to 'port' a few
degrees which accentuates the prop walk or pull of the stern to port.
This short video will highlight: https://www.youtube.com/watch?v=1TMB4-EPMAI
Rob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
On 2016-10-22 12:17 PM, Andrew Burton via CnC-List wrote:
I'm a bit puzzled by the talk about prop walk and offset shafts.
I've found that prop walk is pronounced when the shaft is on centerline, but
when the shaft is offset, it is offset to minimize prop walk. i.e. If the prop
pulls to port, then the shaft is offset to starboard cancelling the effects of
the prop walk in reverse. At least, that's how it should be done. Obviously,
others here are experiencing things differently, which I find surprising.
Andy
C&C 40
Peregrine
Andrew Burton
61 W Narragansett
Newport, RI
USA 02840
http://sites.google.com/site/andrewburtonyachtservices/
+401 965-5260
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