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UNITED STATES NAVY (UNITED STATES OF AMERICA)

SUBMARINES

OHIO nuclear powered ballistic missile submarines (1981 - 1997)

Henry M. Jackson 2000

Ohio 2010

No Name Yard No Builder Laid down Launched Comm Fate
SSBN726, 10.2002- SSGN726 Ohio 216 General Dynamics, Electric Boat Div., Groton 10.4.1976 7.4.1979 11.11.1981 guided-missile nuclear-powered submarine 12.2005, in service (2020)
SSBN727, 1.2004- SSGN727 Michigan 222 General Dynamics, Electric Boat Div., Groton 4.4.1977 26.4.1980 11.9.1982 guided-missile nuclear-powered submarine 6.2009, in service (2020)
SSBN728, 10.2002- SSGN728 Florida 223 General Dynamics, Electric Boat Div., Groton 19.1.1981 14.11.1981 18.6.1983 guided-missile nuclear-powered submarine 3.2006, in service (2020)
SSBN729, 3.2004- SSGN729 Georgia 224 General Dynamics, Electric Boat Div., Groton 7.4.1979 6.11.1982 11.2.1984 guided-missile nuclear-powered submarine 2008, in service (2020)
SSBN730 Henry M. Jackson (ex-Rhode Island) 225 General Dynamics, Electric Boat Div., Groton 19.11.1981 15.10.1983 6.10.1984 in service (2020)
SSBN731 Alabama 226 General Dynamics, Electric Boat Div., Groton 27.8.1981 19.5.1984 25.5.1985 in service (2020)
SSBN732 Alaska 227 General Dynamics, Electric Boat Div., Groton 9.3.1983 12.1.1985 25.1.1986 in service (2020)
SSBN733 Nevada 230 General Dynamics, Electric Boat Div., Groton 8.8.1983 14.9.1985 16.8.1986 in service (2020)
SSBN734 Tennessee 231 General Dynamics, Electric Boat Div., Groton 9.6.1986 13.12.1986 17.12.1988 in service (2020)
SSBN735 Pennsylvania 234 General Dynamics, Electric Boat Div., Groton 2.3.1987 23.4.1988 9.9.1989 in service (2020)
SSBN736 West Virginia 235 General Dynamics, Electric Boat Div., Groton 14.10.1989 18.12.1987 20.10.1990 in service (2020)
SSBN737 Kentucky 238 General Dynamics, Electric Boat Div., Groton 18.12.1987 11.8.1990 13.7.1991 in service (2020)
SSBN738 Maryland 242 General Dynamics, Electric Boat Div., Groton 22.4.1986 10.8.1991 13.6.1992 in service (2020)
SSBN739 Nebraska 243 General Dynamics, Electric Boat Div., Groton 6.7.1987 15.8.1992 10.7.1993 in service (2020)
SSBN740 Rhode Island 248 General Dynamics, Electric Boat Div., Groton 15.9.1988 17.7.1993 9.7.1994 in service (2020)
SSBN741 Maine 249 General Dynamics, Electric Boat Div., Groton 3.7.1990 16.7.1994 29.7.1995 in service (2020)
SSBN742 Wyoming 251 General Dynamics, Electric Boat Div., Groton 8.8.1991 15.7.1995 13.7.1996 in service (2020)
SSBN743 Louisiana 254 General Dynamics, Electric Boat Div., Groton 23.10.1992 27.7.1996 6.9.1997 in service (2020)

 

Data variant as commissioned

Displacement standard, t

12500 (light)

Displacement normal, t

16764 / 18750

Length, m

170.7

Breadth, m

12.8

Draught, m

11.1

No of shafts

1

Machinery

2 sets geared steam turbines, 1 General Electric S8G nuclear reactor

Power, h. p.

35000

Max speed, kts

 / 25

Fuel, t

nuclear

Endurance, nm(kts)

practically unlimited

Armament

SSBN726-733: 24 Trident C-4 SLBM (UGM-96A), 4 - 533 Mk 68 TT (bow)

SSBN734-743: 24 Trident D-5 SLBM (UGM-133A), 4 - 533 Mk 68 TT (bow)

Electronic equipment

SSBN726-737: BPS-15H radar, BQQ-5E(v)4 or BQQ-6 passive sonar suite, BQS-13, BQS-15 sonars, BQR-15 sonar with TB-23 towed array, BQR-19 sonar, BQQ-9 TASPE sonar, WLR-8(V)5 ECM suite, WLR-10 radar interceptor, 8 CSA Mk 1 decoy launchers, CCS Mk 2 CCS

SSBN738-740:  BPS-15H radar, BQQ-5E(v)4 or BQQ-6 passive sonar suite, BQS-13, BQS-15 sonars, BQR-15 sonar with TB-23 towed array, BQR-19 sonar, BQQ-9 TASPE sonar, WLR-8(V)5 ECM suite, WLR-10 radar interceptor, 14 CSA Mk 2 decoy launchers, CCS Mk 2 CCS

SSBN741-743: BPS-16(V) radar, BQQ-5E(v)4 or BQQ-6 passive sonar suite, BQS-13, BQS-15 sonars, BQR-15 sonar with TB-23 towed array, BQR-19 sonar, BQQ-9 TASPE sonar, WLR-8(V)5 ECM suite, WLR-10 radar interceptor, 14 CSA Mk 2 decoy launchers, CCS Mk 2 CCS

Complement

163

Diving depth operational, m

300

   

Project history: These are by far the largest US submarines, although they are overshadowed by the Soviet Akulas. They differ from earlier US strategic submarines in having twenty-four rather than sixteen missiles, and incorporate a bow sonar (BQQ-6, similar to BQQ-5 but without active elements) and torpedo tubes set back from the bow, as in the newer attack submarines. The S8G reactor is a natural circulation type, related to the S5G in the Narwhal. Ohio class submarines were planned to operate 70-day patrols, with 25-day refit periods between patrols (shortened by the provision of special access trunks into the hull), with a 20-monih refit every nine years, for an overall force availability of 66%, compared to 55% of Poseidon submarines. Really deployment average is 77 days with 35 days in the homeport. Each submarine has two equal crews for year-round operations. The entire programme has suffered from severe delays. Ohio did not run trials until June 1981, although delivery was originally scheduled for December 1977.

Modernizations: 2002, Alaska; 2003, Nevada; 2005, Henry M. Jackson; 2008, Alabama: - 24 Trident C-4 SLBM (UGM-96A); + 24 Trident D-5 SLBM (UGM-133A)

12/2005, Ohio; 4.2006, Florida; 11.2006, Michigan; 11.2007, Georgia: were converted to cruise-missile submarines with data as given in the table.

Data variant SSGN conversion

Displacement standard, t

 

Displacement normal, t

16764 / 18750

Length, m

170.7

Breadth, m

12.8

Draught, m

11.1

No of shafts

1

Machinery

2 geared steam turbines, 1 General Electric S8G nuclear reactor

Power, h. p.

35000

Max speed, kts

 / 25

Fuel, t

nuclear

Endurance, nm(kts)

practically unlimited

Armament

22 Tomahawk CruM VLS (154 Tomahawk Block III or Tactical Tomahawk UGM-109 CruM), 4 - 533 Mk 68 TT (bow, Mk 48 torpedoes, UUVs)

Military load 2 midget submarines or 2 DDS (Dry Deck Shelters, carrying LSDV swimmer delivery vehicle), 66-man SEAL force (102 max)

Electronic equipment

BPS-16(v)4 radar, BQQ-5E(v)4 passive sonar suite, BQS-13, BQS-15 sonars, BQR-15 sonar with TB-23 towed array, BQR-19 sonar, BQQ-9 TASPE sonar, BLQ-10(v) ECM suite, 4 CSA Mk 1 decoy launchers, CCS Mk 2 Mod. 3 CCS

Complement

140 + 66-102 SEALs

Diving depth operational, m

300

During 2002 a proposed SSGN missile loadout included 21 TLAM IIIC cruise missiles with unitary warheads, 5 TLAM IIID1 cruise missiles with submunitions, 2 TLAM IIID2 cruise missiles with nonlethal magnetic pulse and graphite bomb warheads, 28 TTLAM cruise missiles with penetrator warheads, 24 TACMS-U ballistic missiles with 227kg HE warheads, 24 TACMS-A ballistic missiles with 300 M74 antipersonnel and antimaterial bomblets each, 18 TACMS-P ballistic missiles with Block III Earth Penetrator warheads, 18 TACMS-L ballistic missiles, each with 4 GPS-guided miniature autonomous cruise missiles, 4 SASST Search and Attack Specific Shape Targets, capable attack SCUD missiles, tanks and APCs. TACMS and SASST do not yet exist.

Naval service: No significant events.

Tennessee 2001

Ohio 2008

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