posted 08-25-2011 10:48 AM ET (US)
"A jet boat would be good on my stretch of the river but they seem to have issues. Any comments?"Agntvbb, this hasn't been my experience at all
Out West, jet propulsion is the norm for fishing rivers with shallow rapids.
For at least a couple of decades the two standard rigs have been a heavy gauge welded aluminum boat (which can have a very comfortable interior) with either an automotive V8 or V6, or an outboard motor with a jet pump, depending on the size of the boat.
Thousands of these rigs are used daily by guides and ordinary boat people like me. I owned one with a GMC V8 and had zero problems for 6 years.
They work fine for tubing and skiing as well. Since the exhaust has to be above water, the noise is higher. the inboard V8's can be muffled but not the outboards.
The people I talked to who used outboard jets said one loses about 25% of the horsepower with a jet drive so the horsepower of the motor needs to be higher, and they tend to run at higher rpm than a prop setup barely up on plane.
JimL