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Old 08-17-2013
chris_gee chris_gee is offline
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Re: Why the Bristol 32 backs so poorly

It is pretty similar to the Contessa 32. The pivot point is well back from the mast. Thinking of the centre of lateral resistance. I would guess about four feet back. And you have a fair amount of lateral resistance with a cutaway full keel.
Also the centre of windage is forward giving a greater moment to the force of wind, than say the effect of prop walk at a lesser distance.
At very slow speeds the rudder is less effective.
You can get more prop walk by high revs briefly before the prop really grips, but you may not have much room for that if you have to get her moving first to clear a berth.
Where it gets interesting is when the wind is acting opposite to the prop walk. In which case you essentially have to go with the flow and work it so you can ultimately go ahead.
I am not sure that current would make much difference in the absence of wind because I would have thought it would act at the centre of lateral resistance i.e. say pushing the stern one way and the bow the other.
I agree though sometimes it can make life interesting.
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