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Submitted By:
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arthur
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Date Created:
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03-24-2005
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Description:
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A unique propulsion system for boats.Boating in the shallow sand bar filled harbors and streams of the North Island of New Zealand in the 1950-60`s gave many problems so a jet unit was purchased.The jet operation manual pointed out that at least 100 HP was needed and sand and weeds and mud would not be good for the jet unit and steering required power to be maintained at all times and speed was needed to negotiate shallows,and loss of power meant no steering at all.A V bottom hull was preferred.The jet unit was not going to cope so it went back to the retailer.A light weight propulsion was needed,so a pivoting drive was tried and found to be very good.The world`s first practical trim-able shaft drive for boats.
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Tools / Materials:
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Go to the Boating Store
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Pivotal Drive in boat fitted with shroud or Kort nozzle.
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Surface-Subsurface Drive in one unit
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Original Patent application drawing.
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