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Delta IV vs Foxtrot

Delta IV submarine side profile drawing
🇷🇺 Delta IV
Foxtrot submarine side profile drawing
🇷🇺 Foxtrot
Change comparison vs
Specifications
Delta IV Foxtrot
Origin 🇷🇺 Ex-USSR 🇷🇺 Ex-USSR
Category Submarine Submarine
Type Nuclear-powered ballistic missile submarine Diesel-electric submarine
Manufacturer Komsomolsk-on-Amur Sudomekh
Year introduced 1972 1958
Number built 18 units 75 units
Estimated unit price NA NA
Displacement 7,800 tons 1,983 tons
Maximum speed 12.0 knots 16.0 knots
Range Unlimited 20,000 nm at 8 knots
Length 139.0 m 89.9 m
Beam 12.0 m 7.4 m
Crew 120 78
Max depth 400 m 296 m
Performance Radar Chart
Armament & Systems
Delta IV Foxtrot
Armament
  • D-9 launch tubes for 12 R-29 (SS-N-8 Sawfly) SLBMs
  • 4 × 533 mm (21 in) torpedo tubes
  • 2 × 400 mm (16 in) torpedo tubes
  • 10 x torpedo tubes (6 bow, 4 stern)
  • 22 torpedoes
Propulsion 2 pressurized water-cooled reactors powering 2 steam turbines driving 2 shafts and each developing 38.7 MW (51,900 shp) 3 × Kolomna 2D42M 2,000 hp (1,500 kW) diesel engines; 3 × Electric motors (two 1,350 hp and one 2,700 hp); 1 × 180 hp auxiliary motor; 3 shafts

Overview

The Delta IV and the Foxtrot are both Submarine classes.

The Delta IV displaces 7,800 tons — 3.9x the Foxtrot's 1,983 tons. The Delta IV reaches 12 knots vs 16 knots for the Foxtrot. Operational range is 99,999 nautical miles for the Delta IV vs 20,000 for the Foxtrot. The Delta IV carries a crew of 120 vs 78 for the Foxtrot. Submerged displacement is 10,000 tons for the Delta IV vs 2,515 tons for the Foxtrot. The Delta IV can dive to 400 m compared to 296 m for the Foxtrot.

The Delta IV was produced in 18 units vs 75 for the Foxtrot. The Delta IV was commissioned in 1972, 14 years after the Foxtrot (1958).

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Frequently Asked Questions

Which has greater displacement, the Delta IV-class or Foxtrot-class?
The Delta IV-class has greater displacement at 7,800 tons compared to the Foxtrot-class's 1,983 tons.
Which is faster, the Delta IV-class or Foxtrot-class?
The Foxtrot-class is faster with a maximum speed of 16 knots compared to the Delta IV-class's 12 knots.
Which has longer range, the Delta IV-class or Foxtrot-class?
The Delta IV-class is nuclear-powered with unlimited range, while the Foxtrot-class has a range of 20,000 nautical miles.
Which is longer, the Delta IV-class or Foxtrot-class?
The Delta IV-class is longer at 139.0 meters compared to the Foxtrot-class's 89.9 meters.
How many crew members do the Delta IV-class and Foxtrot-class have?
The Delta IV-class has a larger crew complement of 120 compared to the Foxtrot-class's 78 crew members.
Which can dive deeper, the Delta IV-class or Foxtrot-class?
The Delta IV-class can dive deeper with a maximum depth of 400 meters compared to the Foxtrot-class's 296 meters.
Which has been built in greater numbers, the Delta IV-class or Foxtrot-class?
The Foxtrot-class has been built in greater numbers with 75 vessels compared to 18 vessels of the Delta IV-class.