Regarding the debating re trolling motors......
AS a know-nothing guy, I would like to get down to some basics on this!
Maybe these questions below can be answered, maybe no-one has ever bothered finding this stuff out. Maybe thrust is a better comparison measure?
Once again, my goal is regarding an old 6500 pound sailboat with centreboard, and I am really cheap due to wife's budget restrictions and whining.
And I have a belief that the ICE's fitted to sailboats are generally way too much overpowered - the extra power achieves a little more speed, but not in proportion to the first few HP.
And, again, I have a theory that electric drives can be way cheaper by using multiple smaller cheaper motors, and maybe no controller, just contactors. I am not saying that this would be a good way for a commercial sold unit, or have the same convenience, just that it might be possible with compromises. And I know that some of you here will disagree......
I have read here or in the low cost voyaging Group that two minnkotas can power a 26 foot boat OK. (Whatever OK is!)
Now, these are measured/sold/priced by thrust in pounds.
What THRUST would I get from a 30 pounder if I added a large diameter straight bladed prop such as model aircraft prop?
How many would I need to achieve hull speed of, I believe, 6 knots?
Could I make gains by converting to inboard electric, and using a model airplane prop instead of the regular one on the regular shaft - my current engine is an old atomic 4 gas engine. In other words, does the model airplane prop advantage apply in inboard installations as well as outboard trolling motors?
Thanks,
John
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