Probably a simple question but here goes
I am thinking about a electric outboard as a auxillery as my Mariner 4hp will not fit on the transom with the 25 hp (cannot get full lock) and it gets in the way carrying it in the sib.
So as the 4hp pushes the sib along very well I would like (I think) a simular powered electric motor so is there a formula to work out how many lbs of thrust I will need to equate to 4hp.
Also any positives or negatives for this approach?
Sorry just done a search looks like 17lbs = 1hp (uncle al) and judging by some of the comments it might not be such a good idea after all.