[QUOTE=frodus;3514]you sure about that tex? I know of a couple with gear reduction…they’re large couches.
but MOST do not, straight off the engine shaft…
[/QUOTE]
You’re right, there are a couple yamaha models (maybe Honda too, not sure) with gear reduction but they’re still not turning high RPM. They top out around 10,000 under load, higher when the pump loses traction. I tend to overlook those particular models because I’m more interested in racing applications and nobody races those particular PWC’s because they’ve proven to be not very good race platforms.
sparky, you could use alternators to charge the batteries while sitting on the beach but installing them inside the PWC and turning them with the electric motor will only result in a loss of power. It takes power turn alternators, the higher the load on them the more power it takes to turn them, so you won’t be able to harness any extra power from the electric motor to charge batteries nor extend the range.