Join Date: Jun 2011
Location: somewhere south of civilization
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Re: Crazy Propulsion idea for next cruiser... Thoughts...
Up until last month, we had an electric stove/oven. The change has cut our generator time by about 50%.
We have a fairly large solar array and a wind gen, and we couldn't possibly meet our energy needs with both because some days there just isn't enough sun and/or wind to keep up with even half our energy needs.
As TQA mentioned, your going to need an auxiliary charging system unless you are just day sailing, and plug in every night. Calculate the energy requirements of an electric stove, motive power, and a thruster, not to mention A/C, and you are going to find them astronomical even with a generator. In the end, it's just simple math; can you replenish the energy you consume with any system other than shore power? If not, you are going to get stuck w/o power sooner or later.
If I were to put a thruster on a small sailboat, which I wouldn't do for any reason, I'd go to a hydraulic unit. Electrical systems are the weakest and most susceptible to problems on any vessel.
As for twin screws on a small sailboat, the props are not going to be far enough apart to give you the control you expect, even with twin rudders.
"Any idiot can make a boat go; it takes a sailor to stop one." Spike Africa aboard the schooner Wanderer in Sausalito, Ca. 1964.
“Believe me, my young friend, there is nothing - absolutely nothing - half so much worth doing as simply messing about in boats.” ― Kenneth Grahame, The Wind in the Willows
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