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BSubmarines
Dolphin -I: diesel-electric attack submarine Dolphin -II: AIP / diesel-electric Attack Submarine
At a glance
Astute-class submarinelarger figure on 2 of 2
Dolphin-class submarinelarger figure on 0 of 2
Measured figures
Astute class · Length
Single sourceLength
Single sourceConfiguration
| Specification | Astute-class submarine | Dolphin-class submarine |
|---|---|---|
| Range | Unlimited[source] | — |
| Power | — | Diesel-electric, 3 diesels, 1 shaft, 4,243 shp (3,164 kW); Dolphin -II class: air-independent HDW Fuel Cell System[source] |
| Name | Astute class[source] | — |
| Builders | BAE Systems Submarines , Barrow-in-Furness[source] | Howaldtswerke-Deutsche Werft (HDW)[source] |
| Operators | Royal Navy[source] | Israeli Navy |
Counts only measures both sources give with the same scope. A larger figure is not a better system.
for Dolphin -I
Single sourcefor Dolphin -II
Single sourcefor INS Drakon
Single source57.3 m (188 ft) for Dolphin -I 68.6 m (225 ft) for Dolphin -II 74 m (243 ft) for INS Drakon[source]
Astute class · Displacement
Single sourceSubmerged
Single sourceSurfaced
Single sourceSurfaced: 7,000 to 7,400 t (6,900 to 7,300 long tons) Submerged: 7,400 to 7,800 t (7,300 to 7,700 long tons)[source]
7,400 tonnes[source]Astute class
Dolphin -I Class: 1,640 tons surfaced, 1,900 tons submerged Dolphin -II Class: 2,050 tons surfaced, 2,400 tons submerged[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Preceded by | Trafalgar class[source] | Gal class[source] |
|---|
| Succeeded by | SSN-AUKUS (First design contract awarded)[source] | Dakar class[source] |
|---|
| Cost | Over £ 1.65 billion per boat (2015 est.)[source] | — |
|---|
| Built | 2001–present[source] | — |
|---|
| In commission | 2010–present[source] | — |
|---|
| Planned | — |
|---|
| Building | — |
|---|
| Completed | Dolphin Leviathan (trans. "Whale" or Leviathan ) Tekumah (trans. "Revival") Tanin (trans. "Crocodile" or Tannin ) Rahav (trans. "Splendour" or Rahab )[source] |
|---|
| Active | Dolphin -I: 3 Dolphin -II: 3[source] |
|---|
| Type | Nuclear-powered attack submarine[source] | Dolphin -I: diesel-electric attack submarine Dolphin -II: AIP / diesel-electric Attack Submarine[source] |
|---|
| Propulsion | 1 × Rolls-Royce PWR 2 nuclear reactor MTU 600 kilowatt diesel generators[source] | — |
|---|
| Endurance | Unlimited in terms of propulsion, air and water, but otherwise typically 90 days, based on the amount of food carried and endurance of the crew[source] | — |
|---|
| Test depth | Over 300 m (980 ft)[source] | At least 350 m (1,150 ft)[source] |
|---|
| Sensors & processing systems | Thales Sonar 2076 Atlas DESO 25 echosounder 2 × Thales CM010 optronic masts Raytheon Successor IFF[source] | STN Atlas ISUS 90-55 combat system[source] |
|---|
| Armament | 6 × 21 in (533 mm) torpedo tubes with stowage for up to 38 weapons: Tomahawk Block IV cruise missiles Spearfish heavyweight torpedoes[source] | 6 × 533 mm (21.0 in) torpedo tubes 4 × 650 mm (26 in) diameter torpedo tubes[source] |
|---|
| Country of origin | United Kingdom[source] | Germany[source] |
|---|
| Notes | — | The first three, non- AIP submarines of the class ( Dolphin -I) are set to be replaced by the new Dakar -class submarines , beginning from the early 2030s.[source] |
|---|
Dolphin -I class: 20 knots (37 km/h; 23 mph) Dolphin -II class: excess of 25 knots (46 km/h; 29 mph)[source]