Tidal depth calculator

Details Tidal depth calculator Tidal depth calculator

1978-10-25

1980-03-18

Tomsky, Stephen J.

Registers

Calculators

Single axis

235 88R, 235 89R, G06C 300, G06C 2700

Patent

active

041941110

ABSTRACT:
There is disclosed a marine navigational calculator device of the slide rule type whereby tidal depths over bottom structures may be determined as a function of the time of the tide or time of calendar day and whereby the entire time span available to a mariner to successfully negotiate such charted bottom structures for a given tidal flow is visually presented.

REFERENCES:
patent: 569340 (1896-10-01), Low
patent: 3058653 (1962-10-01), Granges
patent: 3621750 (1971-11-01), Leonard
patent: 3703804 (1972-11-01), Appelberg
patent: 3745313 (1973-07-01), Spilhaus
patent: 3842707 (1974-10-01), Leonard

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