Inboard to outboard conversion2/28/2023 Presumably you have the o/b on an extended bracket and don't like the problems of stern rising causing cavitation when pitching. However I use the o/b very little so my ideas might not align with your needs. I prefer my o/b on the transom bracket with adjustable height so that o/b can be lower if pitching or someone is on the foredeck or in smooth water with heavy cockpit load raise the o/b so it is not too deep. It took me quite a while to realise what was going on, and fitting a suitable fan and duct was very high on my "to do" list when instead I sold the boat. This issue is worst at idle - and while idling a hub vent is no better than any other - and while manoeuvring slowly. If it does not, you definitely need to think about venting arrangements since, apart from the stink and possible health issues, the exhaust gasses will accumulate in the well and be breathed in by the engine which after a few minutes will start to choke. If the outboard exhausts through the propeller hub then you might just get away with it, but see below. Outboards tend not to have a long life and your choice of replacement will be governed by what will fit.Ī critical point is exhaust. One tip I would offer if building a well is to size it generously. If you are thinking of removing the motor while sailing (probably more relevant to racers and ocean crossers than coastal potterers) then a plug to fit the hole and make the hull flush is a good thing. Obviously any construction that involves cutting a hole in a perfectly sound hull is a bit daunting, and it goes without saying that the construction has to be perfectly sound and strong enough to take the loads. Maintenance was more convenient too, with less chance of losing bits.īuilding a well has I am sure been the subject of articles, but I can't recall seeing one for some time. It had definite advantages over an outboard over the stern, particularly if the boat was pitching, avoiding discomfort while operating it and also the prop leaving the water. My previous boat, an Etap 22, had this arrangement. If you would like more information I can sort out some photos to PM you.ĭo I understand correctly that you want to use your existing outboard motor but mounted in an inboard well? If not, ignore the rest of this. I might look at some sort of baffle I can slip in to smooth the water flow It means engine checks are easier and the weight is nearer the middle of the boat. The water noise is just different and not too much of a problem. Curiously the noise is loudest at about 3 knots and is not noticable at high or slow speed. The only downsides seems to be the engine noise of the outboard is louder (I try to sail as much as possible anyway) and there is noise from water turbulance which I think is mainly that you can hear it because it is not outside the transom. The system is well thought out and works very well. The rudder has been changed to a two rudder system to allow for this. The outboard is in a well at the back of the cockpit yet can be tipped up with the outboard clear of the water with the leg locating in a slot in the transom. My current boat has the best of both worlds. Or you remove it and store it somewhere- not easy. My previous boat had a transom hung outboard which worked better on one tack when motorsailing.įriends have boats with as outboard well with the outboard permanently down which is convenient but slows them by about 1 knot of speed when sailing.
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