Marine propulsion – Means to control the supply of energy responsive to a sensed...
Patent
1997-11-14
1999-07-27
Avila, Stephen
Marine propulsion
Means to control the supply of energy responsive to a sensed...
440 2, B63H 2122
Patent
active
059280409
ABSTRACT:
A system for measuring propeller apparent slip includes a main console housing a processor. The system measures vessel speed with a pitot tube, pressure transducer, and the processor; and measures engine speed with an inductive pickup and the processor. The processor is pre-programmed with an algorithm for determining apparent slip. When the engine gear ratio and propeller pitch are manually provided to the processor, the processor computes apparent slip on a substantially real-time basis. The processor routes information to a display screen in the main console, and also to a data logger for permanent data storage.
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