-40%
USS PHILADELPHIA SSN 690 ATTACK SUBMARINE~CACHE~25 OCT 1993 CNX PORTSMOUTH, NH V
$ 2.1
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Description
USS PHILADELPHIA SSN 690 25 OCT 1993 CANCELLED IN PORTSMOUTH, NH, CACHE COVER TIED TO A SC 2609 29¢ STAMP~FINE/VERY FINE.Los Angeles Class Attack Submarine: Laid down, 12 August 1972, at the Electric Boat Division of General Dynamics Corp., Groton, CT.; Launched, 19 October 1974; Commissioned, USS Philadelphia (SSN-690), 25 June 1977. Philadelphia was decommissioned on 25 June 2010.
Specifications: Dis
placement, Surfaced: 6,000 t., Submerged: 6.927 t.; Length 360'; Beam 33'; Draft 29'; Speed, Surfaced 25 kts, Submerged 30+ kts; Depth limit 950'; Complement 129; Armament, four 21" torpedo tubes aft of bow can also launch Harpoon and Tomahawk ASM/LAM missiles & MK-48 torpedoes; Combat Systems, AN/BPS-5 surface search radar, AN/BPS-15 A/16 navigation and fire control radar, TB-16D passive towed sonar arrays, TB-23 passive "thin line" towed array, AN/BQG-5D wide aperture flank array, AN/BQQ-5D/E low frequency spherical sonar array, AN/BQS-15 close range active sonar (for ice detection); MIDAS Mine and Ice Detection Avoidance System, SADS-TG active detection sonar, Type 2 attack periscope (port), Type 18 search periscope (starboard), AN/BSY-1 (primary computer); UYK-7; UYK-43; UYK-44, WLR-9 Acoustic Intercept Receiver, ESM; Propulsion System, S6G nuclear reactor one propeller at 35,000 shp.
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