Accession Number : ADD009556

Title :   Torpedo Steering Control System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Fisher,Seth G ; Kowalyshyn,Stephen

Report Date : 06 Apr 1982

Pagination or Media Count : 7

Abstract : This invention concerns an improved system for renewing target search action of the torpedo in the event of target echo loss during a pursuit phase, in particular a search action of unique type which yields high probability of target re-acquisition. Specifically, this system first effects circling of the torpedo in target search condition for a predetermined period at substantially the torpedo depth at which target echo loss occurred, an action here termed flat circle search, then effects helical search action in which the torpedo sweeps or scans a volume extending between predetermined search ceiling and search floor depths. Further, in accordance with the present invention, there is provided a depth steering apparatus for stably maintaining the torpedo at substantially constant depth, as during flat circle search, wherein the depth steering apparatus is controlled by both depth rate and pitch rate sensors.

Descriptors :   *Patents, *Homing torpedoes, *Searching, Target echoes, Losses, Depth, Steering, Control systems, Inventions

Subject Categories : Submarine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE