Program · United States · U.S. Navy
Lewis B. Puller-class Expeditionary Sea Base
Lewis B. Puller-class expeditionary sea base · Fielded · U.S. Navy
Updated
FieldedU.S. Navy
Awarded
—
Across linked awards
Cost to the Government
| Measure | Amount | Source |
|---|---|---|
| Program totals · 1 | ||
| Shared ESD / ESB R&D totalShared program development; not attributable solely to sea bases. | $114.3MThen-year $ | Expeditionary Sea Base / Transfer Dock December 2019 SAR, FY2021 budget Department of Defense · figure Dec 2019 SAR |
| Unit costs · 1 | ||
| Mixed ESD / ESB average procurement / shipSeven-ship program includes two transfer docks and five sea bases. This is not a pure ESB unit price. | $620.4MThen-year $ | Expeditionary Sea Base / Transfer Dock December 2019 SAR, FY2021 budget Department of Defense · figure Dec 2019 SAR |
| Quantities · 2 | ||
| Sea bases in historical programExcludes two ESD ships in the seven-ship program; later ESB orders are separate. | 5U.S. only | Expeditionary Sea Base / Transfer Dock December 2019 SAR, FY2021 budget Department of Defense · figure Dec 2019 SAR |
| U.S. inventoryA dated, variant-specific U.S. fleet count has not been verified. | Not established | — |
| Operating costs · 1 | ||
| ESB estimated annual O&S / shipESB-specific annual estimate in the SAR explanation; the $37.795M summary averages ESB and ESD ships. | $40.7M / yrConstant FY2011 $ | Expeditionary Sea Base / Transfer Dock December 2019 SAR, FY2021 budget Department of Defense · figure Jan 2020 estimate |
Program totals · 1
- Shared ESD / ESB R&D totalShared program development; not attributable solely to sea bases.Expeditionary Sea Base / Transfer Dock December 2019 SAR, FY2021 budget Department of Defense · figure Dec 2019 SAR$114.3MThen-year $
Unit costs · 1
- Mixed ESD / ESB average procurement / shipSeven-ship program includes two transfer docks and five sea bases. This is not a pure ESB unit price.Expeditionary Sea Base / Transfer Dock December 2019 SAR, FY2021 budget Department of Defense · figure Dec 2019 SAR$620.4MThen-year $
Quantities · 2
- Sea bases in historical programExcludes two ESD ships in the seven-ship program; later ESB orders are separate.Expeditionary Sea Base / Transfer Dock December 2019 SAR, FY2021 budget Department of Defense · figure Dec 2019 SAR5U.S. only
- U.S. inventoryA dated, variant-specific U.S. fleet count has not been verified.Source not recordedNot established
Operating costs · 1
- ESB estimated annual O&S / shipESB-specific annual estimate in the SAR explanation; the $37.795M summary averages ESB and ESD ships.Expeditionary Sea Base / Transfer Dock December 2019 SAR, FY2021 budget Department of Defense · figure Jan 2020 estimate$40.7M / yrConstant FY2011 $
Earlier observations · 2
Superseded estimates and prices, each in its original scope and dollar basis.
| Measure | Amount | Source |
|---|---|---|
| Unit costs · 1 | ||
| Mixed ESD / ESB average procurement / shipSeven-ship program includes two transfer docks and five sea bases. This is not a pure ESB unit price. | $620.4MThen-year $ | Expeditionary Sea Base / Transfer Dock December 2019 SAR, FY2021 budget Department of Defense · figure Dec 2019 SAR |
| Operating costs · 1 | ||
| ESB estimated annual O&S / shipESB-specific annual estimate in the SAR explanation; the $37.795M summary averages ESB and ESD ships. | $40.7M / yrConstant FY2011 $ | Expeditionary Sea Base / Transfer Dock December 2019 SAR, FY2021 budget Department of Defense · figure Jan 2020 estimate |
Unit costs · 1
- Mixed ESD / ESB average procurement / shipSeven-ship program includes two transfer docks and five sea bases. This is not a pure ESB unit price.Expeditionary Sea Base / Transfer Dock December 2019 SAR, FY2021 budget Department of Defense · figure Dec 2019 SAR$620.4MThen-year $
Operating costs · 1
- ESB estimated annual O&S / shipESB-specific annual estimate in the SAR explanation; the $37.795M summary averages ESB and ESD ships.Expeditionary Sea Base / Transfer Dock December 2019 SAR, FY2021 budget Department of Defense · figure Jan 2020 estimate$40.7M / yrConstant FY2011 $
Avoiding a misleading mixed-fleet average
The SAR’s headline operating average combines transfer docks and sea bases. The explanatory calculation gives $40.7M annually for an ESB and $30.4M for an ESD in FY2011 dollars. This page uses the ESB-specific estimate.
Expeditionary Sea Base / Transfer Dock December 2019 SAR, FY2021 budget Department of Defense
Contracts & purchasing · 1
Ceilings, options and purchase agreements are not spending and are never added together. Obligations are under Contracts.
| Buyer → seller | Status | Value | Qty | Source |
|---|---|---|---|---|
| U.S. Navy → General Dynamics NASSCOESB 8 and oilers TAO 211 and 212. Does not establish a per-ESB price; earlier long-lead funding and later options are separate. | Mixed-class contract modification | $1.4B | 3 | NASSCO $1.4 billion ESB / oiler modification, August 2022 General Dynamics · figure Aug 2022 |
Open research: Figures retain the date and scope of the original source. A historical count, cumulative delivery or procurement plan is not today’s mission-capable inventory. A dated, variant-specific U.S. fleet count has not been verified.
What the government budgets and pays for this program, from budget justification books, appropriations, acquisition reports and contract announcements. Each figure states its dollar basis. What contractors were obligated is under Contracts.
No participants, contracts or systems recorded for this program yet.