FORCETALLY
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At a glance
Gotland-class submarinelarger figure on 0 of 4
Ohio-class submarinelarger figure on 4 of 4
Measured figures
Length
Single source60.4 m (198 ft 2 in)[source]
Length
Single sourceConfiguration
| Specification | Gotland-class submarine | Ohio-class submarine |
|---|---|---|
| Range | — | Limited only by food supplies[source] |
| Power | — | 1× S8G PWR nuclear reactor 2× geared turbines ; 35,000 shp (26 MW) 1x Fairbanks Morse auxiliary diesel 1× 325 hp (242 kW) auxiliary motor 1 shaft with seven-bladed screw[source] |
| Builders | Kockums[source] | General Dynamics Electric Boat[source] |
| Operators | Swedish Navy[source] | United States Navy[source] |
| Preceded by | Västergötland class |
Counts only measures both sources give with the same scope. A larger figure is not a better system.
560 ft (170 m)[source]
Submerged
Single sourceSurfaced
Single sourceSurfaced: 1,494 tonnes (1,470 long tons) Submerged: 1,599 tonnes (1,574 long tons)[source]
Submerged
Single sourceSurfaced
Single sourceMaximum; Surfaced
Single sourceMaximum; on AIP
Single sourceMaximum; Submerged on batteries
Single sourceSurfaced: 11 knots (20 km/h) Submerged: 20 knots (37 km/h) on batteries; 5 knots (9.3 km/h) on AIP[source]
Maximum; Surfaced
Single sourceMaximum; submerged (official)
Single sourceBars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Benjamin Franklin class[source] |
| Succeeded by | Blekinge class[source] | Columbia class (ballistic missile submarine variant) Virginia class (cruise missile submarine variant)[source] |
|---|
| Built | 1992–1996[source] | 1976–1997[source] |
|---|
| In commission | 1996–present[source] | 1981–present[source] |
|---|
| Planned | 24[source] |
|---|
| Completed | 18[source] |
|---|
| Active | 18[source] |
|---|
| Type | Submarine[source] | SSBN / SSGN (hull design SCB-304)[source] |
|---|
| Propulsion | 2 × Diesel-electric MTU engines 2 × Kockums v4-275R Stirling AIP units[source] | — |
|---|
| Sensors & processing systems | CSU 90-2 integrated sonar sensor suite[source] | BQQ-6 passive bow-mounted array (which includes BQS-13 fire control array) BQR-19 navigation TB-16 or BQR-23 towed array BQR-25 conformal array AN/BPS-15J[source] |
|---|
| Armament | 4 × 533 mm (21.0 in) torpedo tubes 2 × 400 mm (15.7 in) torpedo tubes 48 × Externally mounted naval mines[source] | 4 × 21 inch (533 mm) Mark 48 torpedo tubes (Forward Compartment 4th level)[source] |
|---|
| Country of origin | Sweden[source] | United States[source] |
|---|
| Name | — | Ohio class[source] |
|---|
| Cost | — | $2 billion (late 1990s) ($3.62 billion in 2024 dollars )[source] |
|---|
| Canceled | — |
|---|
| Test depth | — | +800 ft (240 m)[source] |
|---|
16,764 tonnes (16,499 long tons) surfaced 18,750 tonnes (18,450 long tons) submerged[source]
Maximum; submerged (reported)
Single source12 knots (22 km/h; 14 mph) surfaced 20 knots (37 km/h; 23 mph) submerged (official) 25 knots (46 km/h; 29 mph) submerged (reported)[source]