SSBN 627 James Madison
SSBN 627
SSBN 627 James Madison (1977)
| Type | SSBN |
|---|---|
| Country | USA |
| Displacement (t) | 8,250 |
| Length (m) | 130.0 |
| Beam (m) | 10.0 |
| Draft (m) | 8.7 |
| Height (m) | 10.0 |
| Max speed submerged (kn) | 21.0 |
| Max speed surfaced (kn) | 16.0 |
| Max safe depth (m) | 305 |
| Endurance (days) | 60 |
| Nuclear reactors | 1 |
| Titanium hull | No |
| Class year | 1964 |
Sensors
Sonar (4)
| Name | Type | Platform | Passive range (km) | Active range (km) |
|---|---|---|---|---|
| BQR-15 | T | sub | 4.3 | — |
| BQR-21 | H | sub | 1.7 | — |
| BQR-7 | F | sub | 2.6 | — |
| BQS-4 | H | sub | — | 1.7 |
Radar (1)
| Name | NATO name | Air search | Surface search | Fire control |
|---|---|---|---|---|
| BPS-11A | — | Yes | — |
Individual hulls (10)
| Name | Short name | Country | Commissioned | Decommissioned | Remark |
|---|---|---|---|---|---|
| SSBN-627 James Madison | SSBN-627 | USA | 1981-11-01 | 1992-11-20 | |
| SSBN-628 Tecumseh | SSBN-628 | USA | 1977-01-01 | 1993-07-23 | |
| SSBN-629 Daniel Boone | SSBN-629 | USA | 1977-01-01 | 1994-02-18 | |
| SSBN-630 John C. Calhoun | SSBN-630 | USA | 1977-01-01 | 1994-03-28 | |
| SSBN-631 Ulysses S. Grant | SSBN-631 | USA | 1978-12-01 | 1992-06-12 | |
| SSBN-632 Von Steuben | SSBN-632 | USA | 1977-01-01 | 1994-02-26 | |
| SSBN-633 Casimir Pulaski | SSBN-633 | USA | 1983-01-01 | 1994-03-01 | |
| SSBN-634 Stonewall Jackson | SSBN-634 | USA | 1980-10-01 | 1995-02-09 | |
| SSBN-635 Sam Rayburn | SSBN-635 | USA | 1977-01-01 | 1989-07-31 | |
| SSBN-636 Nathanael Greene | SSBN-636 | USA | 1981-04-01 | 1986-12-15 |