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USS Indiana (SSN-789)


Nuclear-Powered Fast Attack Submarine


United States | 2018



"USS Indiana SSN-789 is a relatively new commissioned vessel of the United States Navy - having entered service as recently as September 2018."



Authored By: Staff Writer | Last Edited: 10/12/2020 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
The Virginia-class nuclear-powered attack submarines were established at the turn of the century and currently (2018) number some 16 boats of the originally planned sixty-six. The clas was developed as a cost-effective alternative to the highly-advanced, though hugely expensive, "Seawolf" model - just three of these were completed of the planned twenty-nine vessels. One of the newest of the Virginia-class boats is USS Indiana (SSN-789) - and all-modern attack platform to become a critical fixture of United States Navy (USN) plans going forward.

USS Indiana's built contract was awarded to Newport News Shipbuilding (Huntington Ingalls Industries/Electric Boat, General Dynamics) on December 22nd, 2008 and her keel was laid down sometime later on May 16th, 2015. She was launched on June 9th, 2017 and officially commissioned into USN service on September 29th, 2018. She homeports out of Groton, Connecticut giving her quick access to Atlantic waters. Her design includes the Block III changes that incorporated the bow and Vertical Launch System (VLS) used in the Ohio-class submarines.

As completed, the submarine displaces 7,800 tons and has a length of 377 feet with a beam of 34 feet. It is powered by a General Electric S9G series water-cooled nuclear reactor giving it unprecedented performance underwater and essentially unlimited operational ranges. Undersea going speeds can reach 25 knots. The streamlined hull is tested to depths of 800 feet (240 meters). Aboard is a crew of 134 officers and sailors.

Armament is 4 x 533mm bow-facing torpedo tubes supporting the Mk 48 series torpedo family. Up to 37 reloads can be carried. Perhaps more important is Indiana's support of the "Tomahawk" BGM-109 land-attack cruise missile of which twelve can be launched from the installed VLS giving the submarine a ferocious surface-to-surface attack quality. Beyond this the submarine relies on its acoustic- and radar-reducing design as well as onboard decoy and electronics to survive in the deep blue sea.

Her overall hull appearance is consisted with the class: rounded nose cap, hull-mounted diving planes, forward-set sail, raised dorsal section (aft of sail) for the VLS fit, and tapered end. At the stern are the control planes and a shrouded, multi-bladed propeller unit. The nuclear powerpack drives power to this single shaft.

USS Indiana (SSN-789) remains in active service as of this writing (2018).

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Power & Performance
Those special qualities that separate one sea-going vessel design from another. Performance specifications presented assume optimal operating conditions for USS Indiana (SSN-789).
1 x General Electric S9G nuclear reactor unit driving 1 x Shaft astern.
Propulsion
25.0 kts
28.8 mph
Surface Speed
35.0 kts
40.3 mph
Submerged Speed
Essentially Unlimited
Range
Structure
The bow-to-stern, port-to-starboard physical qualities of USS Indiana (SSN-789).
134
Personnel
Complement
377.0 ft
114.91 meters
O/A Length
34.0 ft
10.36 meters
Beam
32.0 ft
9.75 meters
Draught
7,800
tons
Displacement
Armament
Available supported armament and special-mission equipment featured in the design of USS Indiana (SSN-789).
12 x VLS (Vertical Launch System) launch tubes for BGM-109 Tomahawk cruise missiles.
4 x 21" (530mm) torpedo tubes (Mk-48 torpedoes)
Naval Mines as needed.
Ships-in-Class (18)
Notable series variants as part of the USS Indiana (SSN-789) family line as relating to the Virginia-class group.
USS Virginia (SSN-774); USS Texas (SSN-775); USS Hawaii (SSN-776); USS North Carolina (SSN-777); USS New Hampshire (SSN-778); USS New Mexico (SSN-779); USS Missouri (SSN-780); USS California (SSN-781); USS Mississippi (SSN-782); USS Minnesota (SSN-783); USS North Dakota (SSN-784); USS John Warner (SSN-785); USS Illinois (SSN-786); USS Washington (SSN-787); USS Colorado (SSN-788); USS Indiana (SSN-789); USS South Dakota (SSN-790); USS Delaware (SSN-791)
Operators
Global operator(s) of the USS Indiana (SSN-789). Nations are displayed by flag, each linked to their respective national naval warfare listing.
National flag of the United States

[ United States ]
1 / 1
Image of the USS Indiana (SSN-789)
Image from the United States Department of Defense DVIDS image database.

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to seaborne requirements.
BLUE WATER SERVICE
SUBMERGED ATTACK
OFFSHORE OPERATION
MARITIME PATROL
FLEET SUPPORT
Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
USS Indiana (SSN-789) Nuclear-Powered Fast Attack Submarine appears in the following collections:
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