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Akula vs Sierra

Akula submarine side profile drawing
🇷🇺 Akula
Sierra submarine side profile drawing
🇷🇺 Sierra
Change comparison vs
Specifications
Akula Sierra
Origin 🇷🇺 Ex-USSR 🇷🇺 Ex-USSR
Category Submarine Submarine
Type Nuclear-powered attack submarine Nuclear-powered attack submarine
Manufacturer Komsomolsk-on-Amur Krasnoye Sormovo
Year introduced 1984 1984
Number built 15 units 4 units
Estimated unit price $1,550 million NA
Displacement 8,140 tons 7,200 tons
Maximum speed 10.0 knots 10.0 knots
Range Unlimited Unlimited
Length 110.3 m 107.2 m
Beam 13.6 m 12.3 m
Crew 73 61
Max depth 600 m 600 m
Performance Radar Chart
Armament & Systems
Akula Sierra
Armament
  • 4 x 533 mm torpedo tubes (28 torpedoes)
  • 4 x 650 mm torpedo tubes (12 torpedoes)
  • 1–3 x Igla-M surface-to-air missile launcher
  • Granat cruise missiles
  • Kalibr cruise missiles
  • Type 53 torpedoes
  • RPK-2 missile
  • RPK-6 missile
  • Type 65 torpedoes
  • RPK-7 missile
  • Naval mines
  • 4 × 650 mm (26 in) torpedo tubes (only Sierra I)
  • 4 × 530 mm (21 in) torpedo tubes (6 x Sierra II)
  • SS-N-21 Sampson SLCM
  • SS-N-15 Starfish anti-submarine weapon
  • SS-N-16 Stallion
  • 42 mines (instead of torpedoes)
Propulsion one 190 MW OK-650B/OK-650M pressurized water nuclear reactor, 1 OK-7 steam turbine 43,000 hp (32 MW), 2 OK-2 Turbo generators producing 2 MW, 1 seven-bladed propeller, 2 OK-300 retractable electric propulsors 1 × PWR, 190 MW (HEU <= 45%), 2 × 1,002 hp (747 kW) emergency motors, 1 shaft, 2 spinners

Overview

The Akula and the Sierra are both Submarine classes.

Displacement is 8,140 tons for the Akula vs 7,200 tons for the Sierra. The Akula reaches 10 knots vs 10 knots for the Sierra. Operational range is 99,999 nautical miles for the Akula vs 99,999 for the Sierra. The Akula carries a crew of 73 vs 61 for the Sierra. Submerged displacement is 12,770 tons for the Akula vs 8,300 tons for the Sierra. The Akula can dive to 600 m compared to 600 m for the Sierra.

The Akula was produced in 15 units vs 4 for the Sierra.

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Frequently Asked Questions

Which has greater displacement, the Akula-class or Sierra-class?
The Akula-class has greater displacement at 8,140 tons compared to the Sierra-class's 7,200 tons.
Which is faster, the Akula-class or Sierra-class?
The Sierra-class is faster with a maximum speed of 10 knots compared to the Akula-class's 10 knots.
Which has longer range, the Akula-class or Sierra-class?
Both the Akula-class and Sierra-class are nuclear-powered and have unlimited range, limited only by food supplies and crew endurance.
Which is longer, the Akula-class or Sierra-class?
The Akula-class is longer at 110.3 meters compared to the Sierra-class's 107.2 meters.
How many crew members do the Akula-class and Sierra-class have?
The Akula-class has a larger crew complement of 73 compared to the Sierra-class's 61 crew members.
Which can dive deeper, the Akula-class or Sierra-class?
The Sierra-class can dive deeper with a maximum depth of 600 meters compared to the Akula-class's 600 meters.
Which has been built in greater numbers, the Akula-class or Sierra-class?
The Akula-class has been built in greater numbers with 15 vessels compared to 4 vessels of the Sierra-class.