USS Volador (SS-490)

USS Volador (the three distinctive shark-fin domes are the PUFFS sonar).
History
United States
NameUSS Volador (SS-490)
BuilderPortsmouth Naval Shipyard, Kittery, Maine
Laid down15 June 1945
Launched21 May 1948
Commissioned1 October 1948
Decommissioned18 August 1972
Stricken5 December 1977
FateTransferred to Italy, 18 August 1972; sold to Italy 5 December 1977
History
Italy
NameGianfranco Gazzana Priaroggia (S 502)
Acquired18 August 1972
Stricken1981
General characteristics (Completed as GUPPY II)
Class & typeTench-class diesel-electric submarine
Displacement
  • 1,870 tons (1,900 t) surfaced
  • 2,440 tons (2,480 t) submerged
Length307 ft (94 m)
Beam27 ft 4 in (8.33 m)
Draft17 ft (5.2 m)
Propulsion
  • 4 × Fairbanks-Morse Model 38D8-1⁄8 10-cylinder opposed piston diesel engines, equipped with a snorkel, driving electrical generators
  • 1 × 184 cell, 1 × 68 cell, and 2 × 126 cell GUPPY-type batteries (total 504 cells)
  • 2 × low-speed direct-drive Elliott electric motors
  • two propellers
Speed
  • Surfaced:
  • 18.0 knots (33.3 km/h) maximum
  • 13.5 knots (25.0 km/h) cruising
  • Submerged:
  • 16.0 knots (29.6 km/h) for 1⁄2 hour
  • 9.0 knots (16.7 km/h) snorkeling
  • 3.5 knots (6.5 km/h) cruising
Range15,000 nm (28,000 km) surfaced at 11 knots (20 km/h)
Endurance48 hours at 4 knots (7 km/h) submerged
Test depth400 ft (120 m)
Complement
  • 9–10 officers
  • 5 Chief Petty Officers
  • 70 enlisted men
Sensors &
processing systems
  • WFA active sonar
  • JT passive sonar
  • Mk 106 torpedo fire control system
Armament
General characteristics (Guppy III)
Displacement
  • 1,975 tons (2,007 t) surfaced
  • 2,450 tons (2,489 t) submerged
Length321 ft (98 m)
Beam27 ft 4 in (8.33 m)
Draft17 ft (5.2 m)
Speed
  • Surfaced:
  • 17.2 knots (31.9 km/h) maximum
  • 12.2 knots (22.6 km/h) cruising
  • Submerged:
  • 14.5 knots (26.9 km/h) for 1⁄2 hour
  • 6.2 knots (11.5 km/h) snorkeling
  • 3.7 knots (6.9 km/h) cruising
Range15,900 nm (29,400 km) surfaced at 8.5 knots (16 km/h)
Endurance36 hours at 3 knots (6 km/h) submerged
Complement
  • 8–10 officers
  • 5 petty officers
  • 70–80 enlisted men
Sensors &
processing systems
  • BQS-4 active search sonar
  • BQR-2B passive search sonar
  • BQG-4 passive attack sonar

USS Volador (SS-490), a Tench-class submarine, was the second ship of the United States Navy to be named for the volador.

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