Aircraft · Air
E-3 Sentry
Airborne warning and control aircraft providing surveillance, tracking and battle management.
by Boeing
- Milestones0
- Operators—
- Components—
- Programs—
- Capabilities—
- Inputs—
Photo: Airman 1st Class Aaron Guerrisky via Wikimedia Commons · Public domain (PD-USGov-Military-Air Force) · Resized and reencoded as WebP with metadata removed; no additional crop.
Timeline
No milestones recorded for E-3 Sentry yet. The timeline fills in as unveilings, tests, contracts and deliveries are sourced.
Cost to the Government
Aircraft · Boeing
E-3 Sentry (AWACS)
A historical constant-dollar unit figure is shown alongside operating-rate and replacement context.
Historical published unit cost
$270M
September 2015 fact sheet · Constant FY1998 USD
Air Force figure in fiscal 1998 constant dollars; no current production or replacement price is implied.
U.S. Air Force ↗U.S. inventory
Not verified
A current U.S. inventory was not established. Annual procurement, cumulative deliveries and production capacity are not a stockpile count.
Historical total-aircraft inventory plan
16
FY2025 · PB2025 · U.S. only; stated source scope
Budget inventory plan, not a verified October 2026 operational or mission-capable count.
U.S. Air Force ↗R&D program total
Not verified
A lifetime program R&D total was not established. Development contracts and shared program budgets are not substituted for that total.
Cost & funding breakdown
NATO final modernization program
$1B
Undated NATO program page · Nominal USD; source budget basis
Boeing-led modernization funded by 16 participating Allies. Not a U.S. award, aircraft purchase or annual operating cost.
NATO ↗The old fact sheet is not a current fleet register
The 2015 page contains differing 31- and 32-aircraft references. Neither is presented as current; the later budget plan is dated separately.
E-7 development is a different cost account
E-3 sustainment and E-7 prototype spending concern different aircraft. Replacement development should not inflate the legacy E-3 unit figure.
Operations & sustainment
Reimbursement / flight hour
$38,319 / hr
FY2026 · Nominal USD; Other DoD Component
Other DoD Component rate. Billing reference, not fully burdened operating cost or proof of operational status.
DoD Comptroller ↗Cost over time · 2 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 |
|---|---|---|---|---|
| FY2026 | Reimbursement / flight hour Other DoD Component rate. Billing reference, not fully burdened operating cost or proof of operational status. | $38,319 / hr | Nominal USD; Other DoD Component | DoD Comptroller ↗ |
| September 2015 fact sheet | Historical published unit cost Air Force figure in fiscal 1998 constant dollars; no current production or replacement price is implied. | $270M | Constant FY1998 USD | U.S. Air Force ↗ |
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
U.S. replacement development
E-7A Wedgetail
The U.S. E-7 prototype effort is separate from E-3 sustainment and NATO-owned E-3A modernization.
U.S. Air Force ↗
International buyers
United States · Quantity not verified · U.S. program customer · Dated source snapshot
Purchases and program plans are not a current operational inventory.
U.S. Air Force ↗NATO (multinational) · 14 · Alliance-owned E-3A fleet · NATO page reviewed 2026-10-09
18 originally acquired; four retired or decommissioned. NATO-owned fleet is separate from U.S. E-3 inventory.
NATO ↗
Coverage & open research
- Buyer records are selected examples, not a complete global order book.
- Current U.S. operational inventory was not established; dated purchases, deliveries and plans remain separate.
- A system-specific lifetime R&D total was not established.
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.