I wonder why that is?
Water jet, as everyone probably thinks are high speed units... jet ski, wet bike, Australian Jet Sprint race boats, European high speed ferries.......
Think about what the boat's job is:
Receive intel about target vessel - usually a slow-moving thing like a modiified tug or a yacht, 'cos you can't get much gear in a speedboat.
Fire up the Paxman Valentas and go like hell until target gets within radar range.
Stop, or overshoot and/or get spotted by the target.
Fire up small Gardner/Perkins loiter engine, which just happens to run a PP Jet (that's the way Vospers built it so don't argue). Valentas are really pump engines and don't like being throttled down too low for long periods. They also use a lot of fuel at Mr Taxpayer's expense.
Troll along just over the horizon from the target at low knots until ready to pounce within home waters.
Fire up Paxmans again and charge.
Play Action Man with the RIB and finally board the thing. Loads of madness, mayhem and rummaging.
Find the gear; secure it; dump the crew into the brig and have a cuppa.
BTW the scale outlet for the water-jet nozzle would be approx 8mm diameter. Good luck!
FLJ
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Topic: Model Slipway, Sentinel with Hydro or waterjet? (Read 3013 times)