Dreadnought-class submarine vs S-80 Plus-class submarine

FORCETALLY

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Dreadnought-class submarine — licensed concept illustration

ASubmarines

Dreadnought-class submarine

Nuclear-powered ballistic missile submarine

Concept illustration

Credit

Unknown author Unknown author · OGL 3 · Resized · OGL 3 · Source ↗ · Modified

S-80 Plus-class submarine — licensed reference photograph

BSubmarines

S-80 Plus-class submarine

Submarine with air-independent propulsion (AIP)

Credit

A Guy Named Nyal · CC BY-SA 2.0 · Resized · CC BY-SA 2.0 · Source ↗ · Modified

First system

Second system

At a glance

Side by side

Length comparisonOne shared metre scale

Dreadnought-class submarineLength

153.6 m

Length source ↗

S-80 Plus-class submarineLength

81.05 m

Length source ↗

Lengths retain their source configuration and measurement scope.

Dreadnought-class submarinelarger figure on 1 of 1

Length+90%

S-80 Plus-class submarinelarger figure on 0 of 1

None

Counts only measures both sources give with the same scope. A larger figure is not a better system.

Measured figures

Head to head

15 of 26 rows sourced on both sides

154m

81.05m

Length+90%

All recorded figures & sources

153.6 m

Length

Single source

153.6 metres (504 ft)^[source]

81.05 m

Length

Single source

Configuration

Details

Dreadnought-class submarine and S-80 Plus-class submarine configuration
Specification	Dreadnought-class submarine	S-80 Plus-class submarine
Thrust	—	1 shaft Etanol-AIP 3 bio-ethanol engines (3 × 1,200 kW) MTU-16V-396SE-85L 1 electric motor (3,500 kW), 1 AIP fuel cell unit (300 kW) Vulkan couplings RATO-S G-561W. 280 kN·m^[source]
Builders	BAE Systems , Barrow-in-Furness , England^[source]	Navantia^[source]
Operators	Royal Navy^[source]	Spanish Navy^[source]
Preceded by	Vanguard class^[source]	Galerna class

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]	€ 3.935 billion (2018) for 4 units € 983.75 million (2018) per unit^[source]

Built	First expected by early 2030s^[source]	2005–2029 (planned)^[source]

Planned	4^[source]	4^[source]

Building	4^[source]	2^[source]

Active	0^[source]	1^[source]

Type	Nuclear-powered ballistic missile submarine^[source]	Submarine with air-independent propulsion (AIP)^[source]

Propulsion	Rolls-Royce PWR3 nuclear reactor , turbo-electric drive, pump-jet^[source]	—

Armament	4 × 21 inch (533 mm) torpedo tubes for: Spearfish heavyweight torpedoes 12 × ballistic missile tubes for: Lockheed Trident II D5 SLBMs^[source]	6 × 533 mm (21.0 in) torpedo tubes with: Torpedoes: DM2A4 Mark 48 (option) Black Shark (option) Spearfish (option) Torped 2000 (option) Anti-ship missiles: UGM-84 Sub-Harpoon block II (option) Exocet (option) Joint Strike Missile (studies) Cruise missiles: Tomahawk (option) Cylindrical multi-influence mines MINEA smart bottom mines^[source]