S-40
| Country | United States |
| Ship Class | S-class Submarine |
| Hull Number | SS-145 |
| Builder Name | Bethlehem Shipbuilding Corporation, San Francisco, California, United States |
| Laid Down | 5 Mar 1919 |
| Launched | 5 Jan 1921 |
| Commissioned | 20 Nov 1923 |
| Decommissioned | 29 Oct 1945 |
| Displacement | 854 tons standard; 1,062 tons submerged |
| Length | 219 feet |
| Beam | 21 feet |
| Draft | 16 feet |
| Machinery | Diesel-electric engines |
| Bunkerage | 41,921 gal |
| Power Output | 1,200 SHP |
| Speed | 14 knots |
| Crew | 38 |
| Armament | 4x21" torpedo tubes with 12 torpedoes, 1x4" deck gun |
This article has been removed for review and updates, please check back again soon!
Last Major Revision: Jan 2005
S-40 Operational Timeline
| 20 Nov 1923 | S-40 was commissioned into service. |
| 29 Oct 1945 | S-40 was decommissioned from service. |
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