 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (April 2009) |
 Intelligent Whale at the Navy Museum, Washington Navy Yard
| |
| History | |
|---|---|
 United States | |
| Name | Intelligent Whale |
| Laid down | 1863 |
| Acquired | 29 October 1869 |
| Out of service | 1873 |
| Status | Museum exhibit |
| General characteristics | |
| Type | Submarine |
| Displacement | 4,000 lb (1,800 kg) |
| Length | 28 ft 8 in (8.74 m) |
| Beam | 7 ft (2.1 m) |
| Draft | 9 ft (2.7 m) |
| Propulsion | Hand-cranked screw |
| Speed | 4 knots (4.6 mph; 7.4 km/h) |
| Endurance | 10 hours |
| Complement | 6 to 13 officers and men |
| Armament | Hatch for diver |
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Intelligent Whale is an experimental hand-cranked submarine developed for potential use by the United States Navy in the 1860s.