Sang-O vs Sierra
Overview
The Sang-O and the Sierra are both Submarine classes.
The Sierra displaces 7,200 tons — 26:1 the Sang-O's 275 tons. The Sang-O reaches 7.5 knots vs 10 knots for the Sierra. Operational range is 1,500 nautical miles for the Sang-O vs 99,999 for the Sierra. The Sang-O carries a crew of 15 vs 61 for the Sierra. Submerged displacement is 370 tons for the Sang-O vs 8,300 tons for the Sierra. The Sierra can dive to 600 m compared to 150 m for the Sang-O.
The Sang-O was produced in 41 units vs 4 for the Sierra. The Sang-O was commissioned in 1991, 7 years after the Sierra (1984).
| North Korean coastal submarine introduced in 1991, with around 40 boats still in service. | |
| Origin | 🇰🇵 North Korea |
| Category | Submarine |
| Type | Coastal submarine |
| Manufacturer | Bong Dao Bo Shipyard, Sinpo |
| Year introduced | 1991 |
| Number built | 41 units |
| Estimated unit price | NA |
| Displacement | 275 tons ◉ |
| Maximum speed | 7.5 knots ◉ |
| Range | 1,500 nm ◉ |
| Length | 34.0 m ◉ |
| Beam | 3.8 m ◉ |
| Crew | 15 ◉ |
| Max depth | 150 m ◉ |
| Propulsion | Diesel-electric, 1 diesel engine, 1 electric motor, 1 shaft |
| Armament |
|
| Displacement | 7,200 tons ◉ |
| Maximum speed | 10.0 knots ◉ |
| Range | Unlimited ◉ |
| Length | 107.2 m ◉ |
| Beam | 12.3 m ◉ |
| Crew | 61 ◉ |
| Max depth | 600 m ◉ |
| Propulsion | 1 × PWR, 190 MW (HEU <= 45%), 2 × 1,002 hp (747 kW) emergency motors, 1 shaft, 2 spinners |
| Armament |
|
Performance Radar Chart
Detailed Comparison
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Frequently Asked Questions
Which has greater displacement, the Sang-O-class or Sierra-class?
The Sierra-class has greater displacement at 7,200 tons compared to the Sang-O-class's 275 tons.
Which is faster, the Sang-O-class or Sierra-class?
The Sierra-class is faster with a maximum speed of 10 knots compared to the Sang-O-class's 7 knots.
Which has longer range, the Sang-O-class or Sierra-class?
The Sierra-class is nuclear-powered with unlimited range, while the Sang-O-class has a range of 1,500 nautical miles.
Which is longer, the Sang-O-class or Sierra-class?
The Sierra-class is longer at 107.2 meters compared to the Sang-O-class's 34.0 meters.
How many crew members do the Sang-O-class and Sierra-class have?
The Sierra-class has a larger crew complement of 61 compared to the Sang-O-class's 15 crew members.
Which can dive deeper, the Sang-O-class or Sierra-class?
The Sierra-class can dive deeper with a maximum depth of 600 meters compared to the Sang-O-class's 150 meters.
Which has been built in greater numbers, the Sang-O-class or Sierra-class?
The Sang-O-class has been built in greater numbers with 41 vessels compared to 4 vessels of the Sierra-class.