USS Miami (SSGN-811)
Future US Navy attack submarine
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USS Miami (SSGN-811) will be a Virginia-class nuclear-powered attack submarine of the United States Navy, the tenth of the Block V boats and the 38th of her class overall.
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The lead boat of the Virginia class, USS Virginia (SSN-774) | |
| History | |
|---|---|
 United States | |
| Name | Miami |
| Namesake | Miami, Florida |
| Ordered | March 2023 |
| Builder | General Dynamics Electric Boat[1] |
| Cost | $2.4 Billion (2021) |
| Sponsored by | Gloria Estefan |
| Identification | SSGN-811 |
| Status | Announced |
| General characteristics | |
| Class & type | Virginia-class submarine |
| Displacement | 10,200 tons |
| Length | 460 ft (140 m) |
| Beam | 34 ft (10.4 m) |
| Draft | 32 ft (9.8 m) |
| Propulsion | S9G reactor, auxiliary diesel engine |
| Speed | 25 knots (46 km/h) |
| Endurance | can remain submerged for more than 3 months |
| Test depth | greater than 800 ft (244 m) |
| Complement |
|
| Armament | 40 VLS tubes (12 forward VPT; 28 in VPM), four 21 inch (530 mm) torpedo tubes for Mk-48 torpedoes BGM-109 Tomahawk |
The submarine was ordered in March 2021 for $2.4 billion. Her name was announced on 8 May 2024 by Secretary of the Navy Carlos Del Toro during the Miami Fleet Week with city native and singer Gloria Estefan as her sponsor.[2][3]
Design
Compared to Blocks I-IV of the Virginia-class submarines, Block V vessels will incorporate previously introduced modifications to the base design in addition to a Virginia Payload Module (VPM). The VPM inserts a segment into the boat's hull which adds four vertical launch tubes. Each tube allows for the carrying of seven Tomahawk strike missiles, increasing her armament to a total of 40 missiles.[3]
Her namesake Miami has been carried by four ships of the US Navy, most recently on USS Miami (SSN-755), a Los Angeles-class attack submarine that was decommissioned earlier than planned after she was set on fire in 2014.[2][4]