Columbia-class submarine vs Shallow Water Combat Submersible

FORCETALLY

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ASubmarines

Nuclear-powered ballistic missile submarine (SSBN)

BSubmarines

Submersible , diver propulsion vehicle

Credit

CAPT Kate Dollof · Public domain · Resized · Public domain · Source ↗ · Modified

First system

Second system

At a glance

Length comparisonOne shared metre scale

Columbia-class submarineLength

171 m

Shallow Water Combat SubmersibleLength

6.8 m

Lengths retain their source configuration and measurement scope.

Columbia-class submarinelarger figure on 2 of 2

Shallow Water Combat Submersiblelarger figure on 0 of 2

Counts only measures both sources give with the same scope. A larger figure is not a better system.

Measured figures

13 of 25 rows sourced on both sides

171m

6.8m

Length+2415%

All recorded figures & sources

171 m

Length

Single source

560 ft (171 m)^[source]

6.8 m

Length

Single source

Configuration

Columbia-class submarine and Shallow Water Combat Submersible configuration
Specification	Columbia-class submarine	Shallow Water Combat Submersible
Range	Unlimited^[source]	—
Power	S1B^[source]	—
Preceded by	Ohio class (ballistic missile submarine variant)^[source]	SEAL Delivery Vehicle^[source]
Cost	US$ 109.8 billion for 12 boats (FY2021, projected) US$ 9.15 billion per unit (FY2021, projected)^[source]	$383 million (program cost)^[source]
Built	2020–present