Now that's an ice breaker Jimmy , I have had time to think (bad idea) and i am thinking along the lines as something about 32" long and 9" beam,
with a draft , well that depends on what the overall weight is .
But i plan to make the bow with a solid keel reinforced with an aloy strip and styreen filler reinforced with GF , i can then fit two 12v 7ah batt's up front ,
this will then give me the strength and weight up front to break the ice
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As for the stern i plan to fit a 70mm prop onto a , well i dont know exactly what type of motor it is but it's bigger than a 900 can and it runs well on 12v.
One of the problems i have encountered before is ice getting around the prop area , and although i cant eliminate this i hope to reduce it by leaving the hull stern sides un-cut
that is not following the sweep up to the stern , but i will cut lightning holes to allow water to pass through, i will post pics promise
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And with a single rudder , as a kort would only be damaged if ice went in .
I have no idea what to put on top , but that will come in time .
daz