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Permit vs Romeo

Permit vs Romeo at a glance — displacement 3,810 vs 1,475 tons, length 84 vs 76 m, speed 15 vs 15 knots, crew 112 vs 54.

Romeo submarine side profile drawing
🇷🇺 Romeo
Specifications
Permit Romeo
Origin 🇺🇸 United States 🇷🇺 Ex-USSR
Category Submarine Submarine
Type Nuclear-powered attack submarine Diesel-electric submarine
Manufacturer Portsmouth Naval Shipyard Krasnoye Sormovo Shipyard
Year introduced 1961 1957
Number built 14 units 133 units
Estimated unit price NA NA
Displacement 3,810 tons 1,475 tons
Maximum speed 15.0 knots 15.0 knots
Range Unlimited 9,000 nm at 9 knots
Length 84.9 m 76.6 m
Beam 9.6 m 6.7 m
Crew 112 54
Max depth 400 m NA
Performance Radar Chart
Armament & Systems
Permit Romeo
Armament
  • 4 × 21 inch (533 mm) torpedo tubes amidships
  • 12-18 × Mark 37 torpedoes (later Mark 48s)
  • 4-6 × UUM-44 SUBROC anti-submarine missiles
  • 4 × UGM-84 Harpoon anti-ship missiles
  • 8 × 533 mm (21 in) torpedo tubes (six bow, two stern)
  • 14 × 533 mm (21 in) anti-ship or anti-submarine torpedoes (including Yu-4 and Yu-1)
  • 28 mines
Propulsion 1 S5W PWR, 2 steam turbines, 15,000 shp (11 MW), 1 shaft Two diesels delivering 2.94 MW (4000 shp) with two electric motors driving two shafts.
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Frequently Asked Questions

Which has greater displacement, the Permit-class or Romeo-class?
The Permit-class has greater displacement at 3,810 tons compared to the Romeo-class's 1,475 tons.
Which is faster, the Permit-class or Romeo-class?
The Romeo-class is faster with a maximum speed of 15 knots compared to the Permit-class's 15 knots.
Which has longer range, the Permit-class or Romeo-class?
The Permit-class is nuclear-powered with unlimited range, while the Romeo-class has a range of 9,000 nautical miles.
Which is longer, the Permit-class or Romeo-class?
The Permit-class is longer at 84.9 meters compared to the Romeo-class's 76.6 meters.
How many crew members do the Permit-class and Romeo-class have?
The Permit-class has a larger crew complement of 112 compared to the Romeo-class's 54 crew members.
Which has been built in greater numbers, the Permit-class or Romeo-class?
The Romeo-class has been built in greater numbers with 133 vessels compared to 14 vessels of the Permit-class.