Drift

Columbia-class SSBN

Columbia · Navy · General Dynamics Electric Boat

+9% $128.0B (2017) → $139.7B (2023)
Columbia-class SSBN: cost trajectory from $128.0B in 2017 to $139.7B in 2023, +9% growth. Explore Columbia interactively → Download 1-page brief (PDF)
Baseline
$128.0B (2017)
Current estimate
$139.7B (2023)
Cost growth
+9%
Units
12 → 12
Quantity change
0%
Unit-cost change
+9%
IOC
2031 → 2031 (first patrol)
Schedule slip
0 yr
Cost basis
TY
Confidence
high · reconciled
+9% like-for-like (then-year). BASIS-MISMATCH TRAP: comparing the $100B BY2017 baseline to $139.7B TY overstates growth (~40%); the honest TY-to-TY figure is +9%. Lead-boat schedule under pressure.

Source: CRS R41129 (Dec 2023); Milestone B ADM Jan 2017 ($128B TY = $100B BY2017). Dec 2023 MSAR.

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Drift — an independent project by Aous Abdo, built from public GAO, CRS and DoD sources. Cost growth has many causes; a larger number is not by itself evidence of mismanagement. How this is built · Explore the data →