Apparent wind direction indicator

Details Apparent wind direction indicator Apparent wind direction indicator

1974-08-21

1976-01-20

Gruber, Felix D.

Registers

Transfer mechanism

Traveling pawl

73188, 2351513, 235183, G01P 1302, G06G 718

Patent

active

039341291

ABSTRACT:
A system for evaluating the performance of a sailing boat wherein average boat speed, average apparent wind speed and average apparent wind direction are sensed and are utilized to determine the performance characteristics of sailing boats. The system includes an apparent wind direction indicator which senses the instantaneous apparent wind direction and compares it with a previously generated average apparent wind direction signal to obtain an error signal. The error signal is intergrated to obtain an average error signal which is utilized to correct the previously generated average apparent wind direction signal by changing the position of an average apparent wind direction indicator.

REFERENCES:
patent: 2414919 (1947-01-01), Alexanderson
patent: 2415080 (1947-02-01), Bonell
patent: 2970302 (1961-01-01), Gridley
patent: 3323130 (1967-05-01), Bailey
patent: 3552206 (1971-01-01), Lauter, Jr.
patent: 3665759 (1972-05-01), Daley
patent: 3727457 (1973-04-01), Gregory
Howbrook: A New Synchro. Conference on Servocomponents, Nov. 21-23, 1967, IEE Control and Automation Division, London, pp. 7-12.

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