Delta III vs Delta IV

Soviet ballistic missile submarine, 7,800 tons displacement, powered by two nuclear reactors.
Profile of Delta III
Origin 🇨🇳 Ex-USSR
Category Submarine
Type Nuclear-powered ballistic missile submarine
Manufacturer Komsomolsk-on-Amur
Year introduced 1972
Number built 18 units
Estimated unit price NA
Ex-USSR submarine, 7,800 tons displacement, propelled by two pressurized water-cooled reactors.
Profile of Delta IV
Origin 🇨🇳 Ex-USSR
Category Submarine
Type Nuclear-powered ballistic missile submarine
Manufacturer Komsomolsk-on-Amur
Year introduced 1972
Number built 18 units
Estimated unit price NA
Displacement 7,800 tons â—‰
Maximum speed 12.0 knots â—‰
Range 99,999 nm â—‰
Length 139.0 m â—‰
Beam 12.0 m â—‰
Crew 120 â—‰
Max depth 320 m â—‰
Propulsion 2 pressurized water-cooled reactors powering 2 steam turbines driving 2 shafts and each developing 38.7 MW (51,900 shp)
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
Displacement 7,800 tons â—‰
Maximum speed 12.0 knots â—‰
Range 99,999 nm â—‰
Length 139.0 m â—‰
Beam 12.0 m â—‰
Crew 120 â—‰
Max depth 400 m â—‰
Propulsion 2 pressurized water-cooled reactors powering 2 steam turbines driving 2 shafts and each developing 38.7 MW (51,900 shp)
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

Performance Radar Chart

Frequently Asked Questions

Which has greater displacement, the Delta III-class or Delta IV-class?
The Delta IV-class has greater displacement at 7,800 tons compared to the Delta III-class's 7,800 tons.
Which is faster, the Delta III-class or Delta IV-class?
The Delta IV-class is faster with a maximum speed of 12 knots compared to the Delta III-class's 12 knots.
Which has longer range, the Delta III-class or Delta IV-class?
Both the Delta III-class and Delta IV-class are nuclear-powered and have unlimited range, limited only by food supplies and crew endurance.
Which is longer, the Delta III-class or Delta IV-class?
The Delta IV-class is longer at 139.0 meters compared to the Delta III-class's 139.0 meters.
How many crew members do the Delta III-class and Delta IV-class have?
The Delta IV-class has a larger crew complement of 120 compared to the Delta III-class's 120 crew members.
Which can dive deeper, the Delta III-class or Delta IV-class?
The Delta IV-class can dive deeper with a maximum depth of 400 meters compared to the Delta III-class's 320 meters.
Which has been built in greater numbers, the Delta III-class or Delta IV-class?
Both the Delta III-class and Delta IV-class have been built in equal numbers with 18 vessels each.