Accession Number : ADD011154

Title :   Pneumatic Launcher System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Dragonuk,L

Report Date : 24 Apr 1984

Pagination or Media Count : 8

Abstract : A pneumatic launch system for an aircraft for ejecting one at a time a plurality of sonobuoys within each of a multiple array of tubes. A compressed air supply from the aircraft is regulated in a plenum selectively having poppet valves for selectively releasing plenum air to each sonobuoy within a tube. Each poppet valve is held against the outlet port by differential gas pressure across a piston connected to the valve. A quick exhaust valve bleeds the air from one side of the piston causing it to open and allow the plenum air to pass through the port and apply an ejection force to a sonobuoy. When the exhaust valve is closed, the pressure on either side of the piston equalizes and the poppet valve closes. A replenishment poppet valve recharges the plenum when the pressure drops below a regulated level.

Descriptors :   *Patents, *Launch tubes, *Pneumatic devices, *Sonobuoys, Launching, Multimode, Aerial delivery, Weapon delivery

Subject Categories : Hydraulic and Pneumatic Equipment
      Acoustic Detection and Detectors
      Rockets

Distribution Statement : APPROVED FOR PUBLIC RELEASE