USS Bonita (SS-165)
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| History | |
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 United States
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| Builder: | Portsmouth Naval Shipyard, Kittery, Maine |
| Laid down: | 16 November 1921 |
| Launched: | 9 June 1925 |
| Commissioned: | 22 May 1926 |
| Decommissioned: | 4 June 1937 |
| Commissioned: | 5 September 1940 |
| Decommissioned: | 3 March 1945 |
| Struck: | 10 March 1945 |
| Fate: | Sold for breaking up, 4 October 1945 |
| General characteristics | |
| Class and type: | V-1 (Barracuda)-class composite direct-drive diesel and diesel-electric submarine |
| Displacement: | 2,119 tons (2,153 t) surfaced, 2,506 tons (2,546 t) submerged |
| Length: | 341 ft 6 in (104.09 m) |
| Beam: | 27 ft 6⅝ in (9.4 m) |
| Draft: | 15 ft 2 in (4.62 m) |
| Propulsion: |
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| Speed: | 21 knots (39 km/h) surfaced, 9 knots (17 km/h) submerged |
| Range: | 6,000 nautical miles (11,000 km) @ 11 knots (20 km/h), 11,000 nautical miles (20,000 km) @ 11 kn with fuel in main ballast tanks |
| Endurance: | 10 hours @ 5 knots (9 km/h) |
| Test depth: | 200 ft (60 m) |
| Complement: | 7 officers, 11 petty officers, 69 enlisted |
| Armament: |
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USS Bonita (SF-6/SS-165), a Barracuda-class submarine and one of the "V-boats," was the third ship of the United States Navy to be named for the bonito. Her keel was laid down by the Portsmouth Navy Yard. She was launched on 9 June 1925 as V-3 (SF-6), sponsored by Mrs. L.R. DeSteiguer, wife of Rear Admiral DeSteiguer, and commissioned on 22 May 1926, Lieutenant Commander Charles A. Lockwood, Jr. in command. Like her sisters, Bonita was designed to meet the fleet submarine requirement of 21 knots (39 km/h) surface speed for operating with contemporary battleships.
V-3 was completed with two Busch-Sulzer direct-drive 6-cylinder 2-cycle main diesel engines of 2,250 hp (1,680 kW) each, along with two Busch-Sulzer auxiliary diesel engines of 1,000 hp (750 kW) each, driving electrical generators. The latter were primarily for charging batteries, but to reach maximum surfaced speed, they could augment the mechanically coupled main-propulsion engines by driving the 1,200 hp (890 kW) electric motors in parallel via an electric transmission. Although it wasn't until about 1939 that its problems were solved, electric transmission in a pure diesel-electric arrangement became the propulsion system for the successful fleet submarines of World War II, the Tambor-class through the Tench-class. Prior to recommissioning in 1940, the auxiliary diesels were replaced with two BuEng Maschinenfabrik Augsburg Nürnberg AG (MAN-designed) 6-cylinder 4-cycle diesel engines of 1,000 hp (750 kW) each. In 1942-43 Bonita was converted to a cargo submarine, with the main engines removed to provide cargo space, significantly reducing her speed on the remaining auxiliary diesels.
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