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FIGHTING SHIPS OF THE WORLD
UNITED STATES OF AMERICA
SUBMARINES
OHIO nuclear powered ballistic missile submarines (1981 - 1997)
Photo
Tennessee 2001
Ships
| 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) |
Technical data
| Data variant | as commissioned | SSGN conversion |
|---|---|---|
| Displacement standard, t | 12500 (light) | |
| Displacement normal, t | 16764 / 18750 |
16764 / 18750 |
| Length, m | 170.7 |
170.7 |
| Breadth, m | 12.8 |
12.8 |
| Draught, m | 11.1 |
11.1 |
| No of shafts | 1 |
1 |
| Machinery | 2 sets geared steam turbines, 1 General Electric S8G nuclear reactor |
2 geared steam turbines, 1 General Electric S8G nuclear reactor |
| Power, h. p. | 35000 |
35000 |
| Max speed, kts | / 25 |
/ 25 |
| Fuel, t | nuclear |
nuclear |
| Endurance, nm(kts) | practically unlimited |
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) |
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 | 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 |
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 | 163 |
140 + 66-102 SEALs |
| Diving depth operational, m | 300 |
300 |
Standard scale images
Henry M. Jackson 2000
Ohio 2010
Graphics
Ohio 2008
Tennessee 2001
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.
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.
