On 31/12/10 03:48, acsarfkram wrote:
> I think tolling motor props are optimized for trolling - low speed high thrust.
And also being abused - i.e. running into sea grass beds, other debris
in the water, contact with the sea bed - hitting sand and rocks while
running, etc.
I suspect no 1 on their list is being 'snag-less' to cope with the
'weeds' and then robustness against ground impacts. Actual propulsion
efficiency is probably way down their list.
Interestingly I note that in my boat, I know I've gotten too close the
the sea-grass when my motor current suddenly spikes.
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