Please forgive the newbie question.
I'm looking to buy a rib a some point in the near future. As a couple we are into open water swimming and fancy a rib to adventure to more remote spots to swim and occasionally support open water swim attempts. I also fancy a spot of rib cruising to inaccessible places, camping on the beach etc etc. Cruising area will be homes waters on the south coast of England plus the west coast of Scotland where we also hope to relocate to in the not too distant future. It would be a secondhand purchase of a rib between 4.8 and 5.5m long. The rib would be used either one or two up and rarely more than that.
Looking at the adverts ribs in this class come with a real range of outboards. I appreciate not all ribs have transoms rated for the same power/weight of engine and that is a big factor but my criteria for us are
- A reasonably seaworthy craft for its given size to reduce the chances of getting caught out.
- Comparably quiet and fuel efficient cruising
Absolute flat water top speed comes a very distant third and towing wakeboards/rings doesn't even make it onto the list.
So my question is, does a smaller outboard presumably run harder perform less well in terms of noise and fuel efficiency than a larger one at cruising speed? Are there other factors like 2 or 4 stroke or prop type that make more difference? I would imagine a deeper V hull needed for good seaworthy manners rather counteracts our other objectives to some extent.
Many thanks for your help.