| http://www.w3.org/ns/prov#value | - if it is a sailboat I assume the only reason you need auxiliary power is because you are becalmed or as was the case on the long narrow reservoir where I sailed the dinghy, (150kms, x 1km max but loads of inlets, think centipede) tacking is a pain and you cover no ground in hours....if you are looking for 6 or 7 knots all the time buy a motorboat, or at least a Hobie cat or similar ( that gives the
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