Improved Kilo vs Narwhal

The Improved Kilo and the Narwhal are both Submarine classes. The Narwhal displaces 5,027 tons — 2.2x the Improved Kilo's 2,325 tons. The Improved Kilo reaches 12 knots vs 20 knots for the Narwhal. Operational range is 7,500 nautical miles for the Improved Kilo vs 99,999 for the Narwhal. The Improved Kilo carries a crew of 52 vs 107 for the Narwhal. Submerged displacement is 3,075 tons for the Improved Kilo vs 5,378 tons for the Narwhal. The Narwhal can dive to 400 m compared to 300 m for the Improved Kilo. The Improved Kilo was produced in 75 units vs 1 for the Narwhal. The Improved Kilo was commissioned in 1980, 11 years after the Narwhal (1969).

Russian attack submarine, introduced in 1980, uses diesel-electric propulsion.
Origin 🇷🇺 Russia
Category Submarine
Type Attack submarine
Manufacturer Rubin Design Bureau
Year introduced 1980
Number built 75 units
Estimated unit price $200 million
American nuclear submarine, 1969 introduction year, powered by an S5G pressurized water reactor.
Origin 🇺🇸 United States
Category Submarine
Type Nuclear submarine
Manufacturer General Dynamics Electric Boat
Year introduced 1969
Number built 1 unit
Estimated unit price NA
Displacement 2,325 tons
Maximum speed 12.0 knots
Range 7,500 nm at 7 knots
Length 72.6 m
Beam 9.9 m
Crew 52
Max depth 300 m
Propulsion Diesel-electric propulsion; 2 × 1000 kW diesel generators; 1 × 5,500–6,800 shp (4,100–5,100 kW) propulsion motor; 1 × fixed-pitch 6-bladed or 7-bladed propeller
Armament
  • 6 × 533 mm (21 in) torpedo tubes
  • 18 torpedoes
  • 4 Kalibr/Club land-attack cruise missile, anti-ship missile and anti-submarine missile (some versions)
  • 24 mines
  • 8 9K34 Strela-3 (SA-N-8 Gremlin) or 8 9K310 Igla-1 (SA-N-10 Gimlet) surface-to-air missiles
Displacement 5,027 tons
Maximum speed 20.0 knots
Range Unlimited
Length 95.9 m
Beam 10.0 m
Crew 107
Max depth 400 m
Propulsion 1 × S5G pressurized water reactor; 1 × steam turbine, 17,000 shp (13,000 kW); 1 shaft
Armament
  • 4 × 21 in (533 mm) torpedo tubes
  • SUBROC
  • Mark 37 torpedoes
  • Mark 45 torpedoes
  • Mark 48 ADCAP torpedoes
  • Mines
  • Tomahawk missiles
  • Harpoon missiles

Performance Radar Chart

Frequently Asked Questions

Which has greater displacement, the Improved Kilo-class or Narwhal-class?
The Narwhal-class has greater displacement at 5,027 tons compared to the Improved Kilo-class's 2,325 tons.
Which is faster, the Improved Kilo-class or Narwhal-class?
The Narwhal-class is faster with a maximum speed of 20 knots compared to the Improved Kilo-class's 12 knots.
Which has longer range, the Improved Kilo-class or Narwhal-class?
The Narwhal-class is nuclear-powered with unlimited range, while the Improved Kilo-class has a range of 7,500 nautical miles.
Which is longer, the Improved Kilo-class or Narwhal-class?
The Narwhal-class is longer at 95.9 meters compared to the Improved Kilo-class's 72.6 meters.
How many crew members do the Improved Kilo-class and Narwhal-class have?
The Narwhal-class has a larger crew complement of 107 compared to the Improved Kilo-class's 52 crew members.
Which can dive deeper, the Improved Kilo-class or Narwhal-class?
The Narwhal-class can dive deeper with a maximum depth of 400 meters compared to the Improved Kilo-class's 300 meters.
Which has been built in greater numbers, the Improved Kilo-class or Narwhal-class?
The Improved Kilo-class has been built in greater numbers with 75 vessels compared to 1 vessels of the Narwhal-class.