Accession Number : ADD007404

Title :   Artificial Underwater Target.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Evans,David J ; Bradley,Clark F

Report Date : 29 Apr 1980

Pagination or Media Count : 6

Abstract : In combination in a free, underwater craft, a hull, means for carrying ballast, means for discharging said ballast, depth responsive means, a timer providing two time intervals, control means operated by said timer for actuating said discharging means after a pre-set time interval, and other control means operated by both said timer and said depth responsive means for actuating said discharge means after a shorter time interval if said craft attains a pre-set depth. (Author)

Descriptors :   *Patents, *Underwater sound equipment, Acoustic decoys, Underwater targets, Simulators, Submarine detection, Countermeasures, Time intervals, Ballast

Subject Categories : Submarine Engineering
      Acoustic Detection and Detectors
      Acoustic Countermeasures
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE