Echo vs Permit
Overview
The Echo and the Permit are both Submarine classes.
Displacement is 4,486 tons for the Echo vs 3,810 tons for the Permit. The Echo reaches 15 knots vs 15 knots for the Permit. Operational range is 30,000 nautical miles for the Echo vs 99,999 for the Permit. The Echo carries a crew of 109 vs 112 for the Permit. Submerged displacement is 5,852 tons for the Echo vs 4,369 tons for the Permit. The Permit can dive to 400 m compared to 300 m for the Echo.
The Echo was produced in 34 units vs 14 for the Permit. The Echo was commissioned in 1960, 1 years before the Permit (1961).
| Ex-USSR nuclear-powered cruise-missile submarine, introduced in 1960, built with two pressurized water-cooled reactors. | |
| Origin | 🇨🇳 Ex-USSR |
| Category | Submarine |
| Type | Nuclear-powered cruise-missile submarine |
| Manufacturer | Komsomolsk-on-Amur, shipyard No. 199 |
| Year introduced | 1960 |
| Number built | 34 units |
| Estimated unit price | NA |
| United States nuclear submarine, introduced in 1961, displaced 3,810 tons. | |
| Origin | 🇺🇸 United States |
| Category | Submarine |
| Type | Nuclear submarine |
| Manufacturer | Portsmouth Naval Shipyard |
| Year introduced | 1961 |
| Number built | 14 units |
| Estimated unit price | NA |
| Displacement | 4,486 tons ◉ |
| Maximum speed | 15.0 knots ◉ |
| Range | 30,000 nm ◉ |
| Length | 115.4 m ◉ |
| Beam | 9.3 m ◉ |
| Crew | 109 ◉ |
| Max depth | 300 m ◉ |
| Propulsion | 2 pressurized water-cooled reactors 70,000 hp (52 MW) each, 2 steam turbines, 2 shafts |
| Armament |
|
| Displacement | 3,810 tons ◉ |
| Maximum speed | 15.0 knots ◉ |
| Range | Unlimited ◉ |
| Length | 84.9 m ◉ |
| Beam | 9.6 m ◉ |
| Crew | 112 ◉ |
| Max depth | 400 m ◉ |
| Propulsion | 1 S5W PWR, 2 steam turbines, 15,000 shp (11 MW), 1 shaft |
| Armament |
|
Performance Radar Chart
Detailed Comparison
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Frequently Asked Questions
Which has greater displacement, the Echo-class or Permit-class?
The Echo-class has greater displacement at 4,486 tons compared to the Permit-class's 3,810 tons.
Which is faster, the Echo-class or Permit-class?
The Permit-class is faster with a maximum speed of 15 knots compared to the Echo-class's 15 knots.
Which has longer range, the Echo-class or Permit-class?
The Permit-class is nuclear-powered with unlimited range, while the Echo-class has a range of 30,000 nautical miles.
Which is longer, the Echo-class or Permit-class?
The Echo-class is longer at 115.4 meters compared to the Permit-class's 84.9 meters.
How many crew members do the Echo-class and Permit-class have?
The Permit-class has a larger crew complement of 112 compared to the Echo-class's 109 crew members.
Which can dive deeper, the Echo-class or Permit-class?
The Permit-class can dive deeper with a maximum depth of 400 meters compared to the Echo-class's 300 meters.
Which has been built in greater numbers, the Echo-class or Permit-class?
The Echo-class has been built in greater numbers with 34 vessels compared to 14 vessels of the Permit-class.