MK 32 Surface Vessel Torpedo Tube (SVTT)
MODS 5, 14, 15, 17 AND 19
The MK-32 Surface Vessel Torpedo Tubes handle the MK-46 and MK-50 torpedo subsurface warfare weapons on a variety of surface combatants. The MK 32 is an ASW launching system which pneumatically launches torpedoes over-the-side of ownship. The SVTT is capable of stowing and launching up to three torpedoes - either Mk 46 or Mk 50 Torpedoes. The Mk 46 Torpedo is a high-speed, deep-running, acoustic-homing, anti-submarine weapon; while the Mk 50 Torpedo is a light-weight weapon replacing the Mk 46 with improved features, such as - increase speed, deeper running, and countermeasures, and decrease running-noise. The SVTT launches torpedoes under local control or remote control from an ASW fire control system. A 1600 PSI maximum air flask pressure is authorized for all MK 32 SVTT fleet firings of MK 46 and MK 50 torpedos and exercise shots, an increase over the nominal 1500 PSI rating, despite concerns that the increased flask pressure (1600 psi) mightcause increased incidents of broaching due to reduced water entry angle.
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