Accession Number : ADD001324

Title :   Sextant Having Night Viewing Capability and Digital Readout and Portable Computer System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Feldman,Sidney ; Ketts,Harry C , III

Report Date : 10 Dec 1974

Pagination or Media Count : 7

Abstract : The patent relates to a portable celestial navigation system using a hand-held sextant having night viewing capability and electrical digital readout of the atlitude of celestial bodies, as by a shaft rotation encoder, coupled to a miniature, dedicated, special purpose portable computer. The computer, comprising an accurate clock and ephemeral data, such as the Nautical Almanac data, is programmed to combine all the data to solve the celestial navigation problem and compute a line-of-position or ships position.

Descriptors :   *Celestial navigation, *Patents, Sextants, Night vision devices, Navigation computers, Navigational aids, Position finding

Subject Categories : Space Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE