Yamaha Internal propulsion engines
are you talking about the twin jet boats?
The thing with jets and I have one is :
- weeds can get in your impeller and stop you in the tracks
- fun to drive
- usually cant be trimmed
- loud due to high rpm
- not as efficient as props (5-15% less)
- little draft
- neckbending acceleration
- active breaking
- very maneuverable
Matt
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