Initial Sea Trials

Huntington Ingalls Industries’ (HII) Newport News Shipbuilding division successfully completed the initial sea trials on the newest Virginia-class submarine, USS Delaware (SSN-791).

The submarine USS Delaware (SSN-791) returns to the Newport News Shipbuilding division following its first set of sea trials with three HII-built aircraft carriers visible in the distance at Norfolk Naval Station (Photo by Ashley Cowan/HII)

The submarine, in the final stages of construction, spent three days at sea proving all of its systems, components and compartments. Delaware submerged for the first time and performed high-speed maneuvers on the surface and underwater.

«Delaware performed well during sea trials, which is a testament to the skill and craftsmanship of the incredible team of shipbuilders who are working to uphold our high standards of quality», said Dave Bolcar, Newport News’ vice president of submarine construction. «We look forward to continuing our testing program to deliver the submarine to the U.S. Navy later this year».

The submarine is scheduled to undergo a round of acceptance trials before it is delivered. More than 10,000 shipbuilders from Newport News and teaming partner General Dynamics Electric Boat and thousands of companies across 48 states have participated in Delaware’s construction since the work began in September 2013.

Huntington Ingalls Industries is America’s largest military shipbuilding company and a provider of professional services to partners in government and industry. For more than a century, HII’s Newport News and Ingalls shipbuilding divisions in Virginia and Mississippi have built more ships in more ship classes than any other U.S. naval shipbuilder. HII’s Technical Solutions division provides a wide range of professional services through its Fleet Support, Mission Driven Innovative Solutions, Nuclear & Environmental, and Oil & Gas groups. Headquartered in Newport News, Virginia, HII employs more than 41,000 people operating both domestically and internationally.

The U.S. Navy’s newest Virginia-class fast attack submarine, USS Delaware (SSN-791), submarine successfully completed the initial sea trials

 

General Characteristics

Builder General Dynamics Electric Boat Division and Huntington Ingalls Industries Inc. – Newport News Shipbuilding
Date Deployed October 3, 2004
Propulsion One GE PWR S9G* nuclear reactor, two turbines, one shaft; 40,000 hp/30 MW
Length 377 feet/114.8 m
Beam 33 feet/10.0584 m
Hull Diameter 34 feet/10.3632 m
Displacement Approximately 7,800 tons/7,925 metric tons submerged
Speed 25+ knots/28+ mph/46.3+ km/h
Diving Depth 800+ feet/244+ m
Crew 132: 15 officers; 117 enlisted
Armament: Tomahawk missiles Two 87-in/2.2 m Virginia Payload Tubes (VPTs), each capable of launching 6 Tomahawk cruise missiles
Armament: MK-48 ADCAP (Advanced Capability) Mod 7 heavyweight torpedoes 4 torpedo tubes
Weapons MK-60 CAPTOR (Encapsulated Torpedo) mines, advanced mobile mines and UUVs (Unmanned Underwater Vehicles)

* – Knolls Atomic Power Laboratories

 

Nuclear Submarine Lineup

 

Block III

Ship Yard Christening Commissioned Homeport
SSN-784 North Dakota EB 11-2-13 10-25-14 Groton, Connecticut
SSN-785 John Warner NNS 09-06-14 08-01-15 Norfolk, Virginia
SSN-786 Illinois EB 10-10-15 10-29-16 Pearl Harbor, Hawaii
SSN-787 Washington NNS 03-05-16 10-07-17 Norfolk, Virginia
SSN-788 Colorado EB 12-03-16 03-17-18 Groton, Connecticut
SSN-789 Indiana NNS 04-29-17 09-29-18 Groton, Connecticut
SSN-790 South Dakota EB 10-14-17 02-02-19 Groton, Connecticut
SSN-791 Delaware NNS 10-20-18

 

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