Aircraft · Air
B-52H Stratofortress
B-52H bomber fleet covered by GAO’s 2025 engine-replacement and radar-modernization assessments. The two upgrade programs have separate acquisition scopes.
- Milestones0
- Operators—
- Components—
- Programs2
- Capabilities—
- Inputs—
B-52H bomber fleet covered by GAO’s 2025 engine-replacement and radar-modernization assessments. The two upgrade programs have separate acquisition scopes.
Timeline
No milestones recorded for B-52H Stratofortress yet. The timeline fills in as unveilings, tests, contracts and deliveries are sourced.
Programs & Awards2 programs
Programs2
- B-52 Commercial Engine Replacement ProgramUnited States
- B-52 Radar Modernization ProgramUnited States
Cost to the Government
Aircraft · Boeing
B-52H Stratofortress
Long-range bomber whose original acquisition, annual sustainment and current modernization bills describe different parts of its lifetime cost.
Published acquisition / aircraft
$84M
2019-06 · Constant FY2012 USD
Historical fact-sheet figure; not a current replacement quote.
U.S. Air Force ↗Published U.S. fleet snapshot
76
2019-06 · U.S. only
Source inventory snapshot; subsequent retirements, transfers and losses are not inferred.
U.S. Air Force ↗Program quantity
Not verified
A comparable total acquisition quantity has not been verified.
R&D program total
Not verified
A separately identified lifetime development total has not been verified. This is not a zero-cost estimate.
Cost & funding breakdown
Projected modernization portfolio
$21B
2026 GAO review · GAO reported USD
Engine, radar and communications modernization across the fleet; not a per-aircraft price or a pure R&D total.
GAO ↗Reading the cost figures
The fact-sheet acquisition figure uses the dollar basis shown above. GAO’s annual operating and support cost includes a broader ownership scope than the Comptroller reimbursement rate. These figures should not be combined into a single inflation-free trend.
Modernization changes the lifetime bill
GAO reports a projected $21 billion modernization portfolio. The bomber’s original purchase price excludes those later projects, and the modernization total must not be labeled entirely as research and development.
Operations & sustainment
Annual O&S / aircraft
$18.21M / yr
FY2018 · Constant FY2018 USD
Historical average for the source study population; not a marginal mission cost.
GAO ↗Reimbursement / flight hour
$66,003 / hr
FY2026 · Nominal USD; Other DoD Component
Published billing rate for use by another DoD component. It is not the fully burdened cost of ownership.
DoD Comptroller ↗Cost over time · 4 observations
Each row retains its original scope and dollar basis. Changing quantities, service life and inflation can change the estimate without changing the price of building one unit.
| Observation | Measure | Amount | Dollar basis | Evidence |
|---|---|---|---|---|
| 2019-06 | Published acquisition / aircraft Historical fact-sheet figure; not a current replacement quote. | $84M | Constant FY2012 USD | U.S. Air Force ↗ |
| FY2011 | Annual O&S / aircraft Historical average for the source study population; not a marginal mission cost. | $16.91M / yr | Constant FY2018 USD | GAO ↗ |
| FY2018 | Annual O&S / aircraft Historical average for the source study population; not a marginal mission cost. | $18.21M / yr | Constant FY2018 USD | GAO ↗ |
| FY2026 | Reimbursement / flight hour Published billing rate for use by another DoD component. It is not the fully burdened cost of ownership. | $66,003 / hr | Nominal USD; Other DoD Component | DoD Comptroller ↗ |
Contracts & purchasing · 0 records
Award values, ceilings and purchase agreements have different meanings. These records are not added together as total spending.
No primary-source contract record verified in this review. This does not mean there are no contracts.
Connected missiles & systems
Planned weapon integration
Long Range Standoff Weapon (LRSO) →Bomber integration is development scope, not evidence of fielded LRSO inventory.
U.S. Congress ↗
International buyers
No international purchase documented in this review.
Coverage & 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 separately identified lifetime development total has not been verified. This is not a zero-cost estimate.
Unit costs and contract unit prices for this system, and budget figures for the programs that buy it. Each figure states its dollar basis and links its source; contract values are under Programs & awards.