FORCETALLY
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At a glance
Dreadnought-class submarinelarger figure on 2 of 2
Ghadir-class submarinelarger figure on 0 of 2
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Measured figures
Length
Single source153.6 metres (504 ft)[source]
Length
Single sourceConfiguration
| Specification | Dreadnought-class submarine | Ghadir-class submarine |
|---|---|---|
| Range | Limited only by food and mechanical components[source] | — |
| Builders | BAE Systems , Barrow-in-Furness , England[source] | Marine Industries Organization[source] |
| Operators | Royal Navy[source] | Islamic Republic of Iran Navy[source] |
| Preceded by | Vanguard class[source] | Nahang class[source] |
29 m (95 ft 2 in)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Cost | £ 31 billion (2016) (equivalent to £ 40.46 billion in 2024) lifetime cost of total programme (est.) £ 7.75 billion (2016) (equivalent to £ 10.12 billion in 2024) per unit (est.)[source] | — |
|---|
| Built | First expected by early 2030s[source] | — |
|---|
| Planned | — |
|---|
| Building | — |
|---|
| Active | 20[source] |
|---|
| Type | Nuclear-powered ballistic missile submarine[source] | Midget submarine[source] |
|---|
| Propulsion | Rolls-Royce PWR3 nuclear reactor , turbo-electric drive, pump-jet[source] | Diesel-electric propulsion[source] |
|---|
| Armament | 4 × 21 inch (533 mm) torpedo tubes for: Spearfish heavyweight torpedoes 12 × ballistic missile tubes for: Lockheed Trident II D5 SLBMs[source] | 2 × 533 mm (21 in) torpedo tubes[source] |
|---|
| Country of origin | United Kingdom[source] United Kingdom[source] | Iran[source] |
|---|
| Name | — | Ghadir[source] |
|---|
| In service | — | 2007–present[source] |
|---|
| Completed | — | 20[source] |
|---|