Originally Posted by sailingdog
I would point out that what is more important than HP is having the right prop. Most of these outboards come with a prop that is better suited to moving a light aluminum jonboat at higher speeds rather than the higher power, lower speed prop a sailboat needs.
Getting the right prop, so you can use the engine at WOT and have the power you need to keep the boat at "cruising" speed is essential.
How much does your boat displace? The typical rule of thumb is 1 HP / 500 lbs. of boat or so. I doubt your boat is 5000 lbs, so 9.9 is probably too much HP for it.
The boat displaces 3100 pounds. We generally have it pretty heavily loaded with two of us and two dogs. We carry food, water, spares, tools, an extra gas can, etc.
I have On a 40 mile motoring day, we averaged
better than 5 knots by GPS, not bad for a boat with a hull spped less than 6 knots.
I want to want the Sail pro. I don't get why it won't push my boat better than an old 2 stroke. I get that the power delivery is different, but it seems to me 6hp is 6hp. And, factor into acount the longer shaft, and the high thrust prop, it should push it better.
It's light, cheap, and has a charging system.
I am sure it would work for occasional use, and docking. We rarely day sail- much more frequently out for 1-7 nights. That often puts us in places we need to motor out of. Sometimes all day.
From what I have read those who have it consider it to push much less than a 6hp two stroke. While I have gotten by fine with that amount of power, I don't want to upgrade to less power.
Also- it is reported as having a lot of vibration. Unfortunately, I don't know whether that is compared to an old two stroke, or a new 2 cylinder 4 stroke.
I am trying to get out of buying an over sized, over priced motor, and started this thread in the hopes that somebody would have a great idea. Appreciate all the input.