device for regulating the water jet propulsion of a hydrofoil.

摘要

A control system for water jet ship propulsion apparatus of the type having reverser bucket apparatus which is selectively and controllably movable into the path of a driving jet to reverse the thrust of the jet. The invention is characterized in the use of plural potentiometers connected to a single control throttle, one of the potentiometers acting to control the driving engine for the propulsion apparatus and the other acting to control the position of the reverser bucket apparatus. Both potentiometers employ shorted sections such that the driving engine will run at idle speed on either side of a neutral setting while the reverser bucket apparatus is moved from a fully-retracted to a fully extended position for reverse thrust. Once the reverser bucket apparatus reaches one of its two extreme positions, engine speed can be increased with increased thrust. In the engine idle region, reverser bucket modulation of the jet stream can be effected to give forward and reverse boat speed control at the engine idle setting.