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Rick wrote:
.... Lots of "kick" at low speeds since they accelerate a huge weight of water in a very short time and put it anywhere you want it. Twin jets and a bow thruster are lovely. That does make sense but I've head a couple of people say that jets will not give as definite a push when gunned at low speeds as will a conventional prop. If you look at it as a problem in differential pressure, it seems to me a pump & jet nozzle could generate higher delta-P much quicker though. I guess to make sure I'll have to try it for myself some day. I have driven a couple of small jets, the biggest one a 25-ish foot center console... heavy boat, flat bottomed, badly prone to side slip but a lot of fun in the shallow water it was designed for. It had a fixed jet nozzle & conventional rudder. The OP specified a 150' boat, rapid reversing capability, and precise speed control ... all the attributes of jets in a boat that size. Efficiency is not the highest rung on the ladder in that installation. Yep. People that are mega-rich have different priorities! Fresh Breezes- Doug King |
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