Accession Number : ADD017654

Title :   Underwater Vortex Shedder.

Descriptive Note : Patent, Filed 27 Jul 94, patented 23 May 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Galib, Thomas A

Report Date : 23 May 1995

Pagination or Media Count : 5

Abstract : A self.propelled torpedo with four stabilizer fins having an X orientation when the torpedo is running submerged through water. Each stabilizer fm has a fixed leading section and a trailing rudder section with a rigid trailing edge. Bands of tape are wrapped fore and aft around each rudder section to provide opposed trailing extensions of tape which are adhered together and slitted to form a trailing extension of flexible material with separate strips along the full length of the rigid trailing edge. The trailing extension of flexible material provides for shedding trailing edge vortexes downstream for reducing the transmission of vortex energy upstream to the rudder.

Descriptors :   *FINS, *PATENTS, *TORPEDO COMPONENTS, WATER, ENERGY, FREQUENCY MODULATION, VORTICES, LENGTH, TAPES, RUDDERS, ADAPTERS, RIGIDITY, FLEXIBLE MATERIALS, TRAILING EDGES, STABILIZATION SYSTEMS

Subject Categories : Torpedoes

Distribution Statement : APPROVED FOR PUBLIC RELEASE