Originally Posted by martini
A jet rib would be great but unless you have a specific requirement for it, I think the inefficiency would rule it out for leisure use.
I disagree, the acceleration is great so it is only top end you lose out on. And you get all the benefits of a straight line of rotation with no exposed parts.
You can tweak them for increased speed with the right hull form too.
Having accepted that diesel inboards are the way ahead, what reliable yet practical drive options are there...