Accession Number : ADD014874
Title : Submarine Drone for Carrying a Barrel Stave-Type Transducer Array.
Descriptive Note : Patent, Filed 28 Jul 66, patented 12 Feb 91,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Yerby, Henry T ; Lang, Thomas G ; Karig, Horace E
Report Date : 12 Feb 1991
Pagination or Media Count : 5
Abstract : A submarine drone has special hydrodynamic performance features for operating as a moving underwater platform for underwater transport of a barrel stave type sonar receiving transducer and a pole type sonar transmitting transducer with highly precise vertical alignment. The body of the submarine comprises a generally spherical pressure hull for containing propulsion plant and electronic components. The barrel stave transducer is affixed about the upper half of the pressure hull. An acoustically transparent false walls form a spherical hydrodynamic wall over the pressure vessel and transducer. The false wall also forms a tail cone projecting from the rear side of the submarine. The tail cone contains an annular channel which takes in boundary layer water from the spherical portion of hydrodynamic wall and conducts it back to a pump jet at the extreme rear of the tail cone. A fixed tail boom emerges from the center of the pump jet structure and extends rearwardly. Cruciform control surfaces append from the tail boom. The pole transducer projects from the top of the spherical body and has a freely pivoting fairing made of acoustically transparent material there about.
Descriptors : ALIGNMENT, BOOMS(EQUIPMENT), BOUNDARY LAYER, CHANNELS, CONICAL BODIES, CONTROL SURFACES, CRUCIFORM CONFIGURATIONS, DRONES, ELECTRONIC EQUIPMENT, HYDRODYNAMIC CHARACTERISTICS, HYDRODYNAMICS, JET FLOW, MATERIALS, MOTION, PERFORMANCE(ENGINEERING), PLATFORMS, PRECISION, PRESSURE HULLS, PRESSURE VESSELS, PROPULSION SYSTEMS, PUMPS, SIDES, SONAR, STRUCTURAL PROPERTIES, SUBMARINES, TAIL ASSEMBLIES, TRANSDUCERS, TRANSPARENCE, TRANSPORT, UNDERWATER, VERTICAL ORIENTATION, WALLS, WATER
Subject Categories : Submarine Engineering
Acoustic Detection and Detectors
Distribution Statement : APPROVED FOR PUBLIC RELEASE