You know, that's not a bad idea. I had a 12' portaboat once which
plane really well. I'd be able to carry a 210 lb friend and get up on
a decent plane with a 8 HP motor. I wasn't very experienced with
boating and didn't have a big enough arch for the portaboat, so I sold
the PB and kept my rib. I think to get this RIB to the point where I
could plane easily, I would need a 15 HP engine, and suddenly I'm
looking at around 250 lbs hanging off the back. By going to a
portaboat, I might save 80 to 100lbs.