Columbia vs Vanguard
Columbia vs Vanguard at a glance — length 171 vs 149 m, crew 155 vs 135.
Specifications
|
Columbia |
Vanguard |
| Origin |
🇺🇸 United States |
🇬🇧 United Kingdom |
| Category |
Submarine |
Submarine |
| Type |
Nuclear-powered ballistic missile submarine |
Nuclear-powered ballistic missile submarine |
| Manufacturer |
General Dynamics Electric Boat, Newport News Shipbuilding |
Vickers Shipbuilding and Engineering |
| Year introduced |
2030 |
1993 |
| Number built |
12 units |
4 units |
| Estimated unit price |
$9,150 million |
$4,800 million |
| Displacement |
NA |
15,900 tons |
| Maximum speed |
NA |
15.0 knots |
| Range |
NA |
Unlimited |
| Length |
171.0 m |
149.9 m |
| Beam |
13.1 m |
12.8 m |
| Crew |
155 |
135 |
| Max depth |
NA |
300 m |
Armament & Systems
|
Columbia |
Vanguard |
| Armament |
- 16 × Trident II D5 submarine-launched ballistic missiles
- 533 mm torpedo tubes with Mk 48 torpedoes
|
- 4 × 21-inch (533 mm) torpedo tubes for Spearfish heavyweight torpedoes
- 16 × ballistic missile tubes for Lockheed Trident II D5 SLBMs
|
| Propulsion |
S1B nuclear reactor, turbo-electric drive, pump-jet propulsor |
1 × Rolls-Royce PWR2 nuclear reactor, 2 × GEC turbines; 27,500 shp (20.5 MW), 1 × shaft, pump jet propulsor, 2 × auxiliary retractable propulsion motors, 2 × Allen turbo generators (6 MW), 2 × Paxman diesel alternators; 2,700 shp (2.0 MW) |
Detailed Comparison
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Which is longer, the Columbia-class or Vanguard-class?
The Columbia-class is longer at 171.0 meters compared to the Vanguard-class's 149.9 meters.
How many crew members do the Columbia-class and Vanguard-class have?
The Columbia-class has a larger crew complement of 155 compared to the Vanguard-class's 135 crew members.
Which is more expensive, the Columbia-class or Vanguard-class?
The Columbia-class is more expensive at approximately $9.2 billion per unit compared to the Vanguard-class at $4.8 billion.
Which has been built in greater numbers, the Columbia-class or Vanguard-class?
The Columbia-class has been built in greater numbers with 12 vessels compared to 4 vessels of the Vanguard-class.
