Airborne Early Warning & Control Systems

E-2 Hawkeye vs E-3 Sentry vs E-7 Wedgetail

Side-by-side comparison of capabilities, costs, fleet numbers, and operational realities — as of March 2026.

E-2D Advanced Hawkeye
Hawkeye
Northrop Grumman · In production · Carrier-based
Active & Growing
$232M Unit Cost
~84 Global Fleet
300+ nm Radar Range
Specifications
RadarAN/APY-9 AESA hybrid
Simultaneous tracks2,000+
Crew5 (2 pilots + 3 operators)
Endurance4–5 hrs / 8–9 hrs with AAR
Speed350 kts (648 km/h)
Service ceiling37,000 ft
Powerplant2× turboprops (T56-A-427A)
AirframePurpose-built, carrier-capable
Op. cost/hr~$20,000 (est.)
Fleet Breakdown
What Makes It Cool
What Makes It Uncool
E-3G Sentry (AWACS)
Sentry
Boeing · Out of production · 707-based airframe
Retiring by FY2029
$560M+ Unit Cost (2026$)
~42 Global Fleet
400+ mi Radar Range
Specifications
RadarAN/APY-2 rotating dome
Simultaneous tracks600+
CrewUp to 23 (4 flight + 13–19 mission)
Endurance8+ hrs / 24+ hrs with AAR
Speed461 kts (854 km/h)
Service ceiling35,000+ ft
Powerplant4× TF33 (out of production)
AirframeBoeing 707-320 (1960s design)
Op. cost/hr$39,587/hr (~$317K/8-hr mission)
Fleet Breakdown
What Makes It Cool
What Makes It Uncool
E-7 Wedgetail (737 AEW&C)
Wedgetail
Boeing · In production (barely) · 737-based airframe
US Program in Limbo
$400–724M Unit Cost
14 Active Fleet
600+ km Radar Range
Specifications
RadarMESA AESA "top hat" (fixed)
Simultaneous tracks180 (air); also maritime + ELINT
Crew6–10 (2 flight + 4–8 mission)
Endurance10+ hrs / unlimited with AAR
SpeedMach 0.78 (852 km/h)
Service ceiling~29,500 ft (typical patrol)
Powerplant2× CFM56 (modern, in production)
AirframeBoeing 737-700 (commercial support)
ELINT range850+ km at altitude
Fleet Breakdown
What Makes It Cool
What Makes It Uncool

Head-to-Head Comparison

Direct comparison across critical operational parameters.

Category E-2D Hawkeye E-3G Sentry E-7 Wedgetail
Unit flyaway cost ~$232M ~$560M (2026$) $400M–$724M+
Operating cost/hr ~$20K (est.) $39,587 ~$25K (est.)
Radar range 300+ nm (556 km) 400+ mi (640+ km) 600+ km (air)
Simultaneous tracks 2,000+ 600+ 180
Radar technology AESA hybrid Rotating mechanical dome Full AESA (fixed)
Mission crew 3 operators 13–19 specialists 4–8 operators
Endurance (unrefueled) 4–5 hrs 8+ hrs 10+ hrs
Endurance (with AAR) 8–9 hrs 24+ hrs (crew rotation) Unlimited
Speed 350 kts (648 km/h) 461 kts (854 km/h) Mach 0.78 (852 km/h)
Maritime surveillance Limited No Yes (simultaneous)
ELINT capability Limited Some Yes (850+ km)
Carrier-capable Yes (only one) No No
Active global fleet ~84 (all variants) ~42 (+ 4 Japan E-767) 14 operational
Mission-capable rate High (new fleet) ~55.7% USAF High (Australia)
Peer-conflict survivability Best (carrier-mobile) Poor (slow, large target) Poor (USAF cancelled for this)
Program status (US) Active, growing Retiring FY2029 Cancelled → Congress saved it → limbo
Airframe age Modern (2007–present) 34+ yrs old (707 derivative) Modern (737NG)
Replacement for E-3? Partially (USAF using E-2D as gap-filler) Was the plan; now uncertain

Sources

  1. E-2D Advanced Hawkeye — NAVAIR official product page
  2. E-2 Hawkeye Replaces USAF E-3 Sentry, E-7 Cancelled In New Budget — The War Zone
  3. Grumman E-2 Hawkeye — Wikipedia
  4. Northrop Wins $1.5B E-2D Hawkeye Contract for US Navy, Japan — The Defense Post, Jul 2024
  5. Taiwan wants six E-2D Advanced Hawkeyes to track Chinese J-20s — Army Recognition, Feb 2025
  6. Boeing E-3 Sentry — Wikipedia
  7. Major Deployment Of Rickety E-3 Sentry Fleet For Iran Crisis Highlights Worrisome Gaps — The War Zone, Feb 2026
  8. E-3 Sentry (AWACS) — Official USAF Fact Sheet
  9. Key USAF E-3 AWACS Aircraft Damaged in Iranian Attack on Saudi Air Base — Air & Space Forces Magazine, Mar 2026
  10. Air Force cancels E-7 Wedgetail, citing survivability and cost concerns — Breaking Defense, Jun 2025
  11. NATO Shelves Plans to Buy E-7 Wedgetail — The Aviationist, Nov 2025
  12. Congress Poised to Save E-7 Wedgetail in New NDAA — Air & Space Forces Magazine
  13. Boeing E-7 Wedgetail — Wikipedia
  14. Iranian Attack on Prince Sultan Air Base Reportedly Struck U.S. E-3 Sentry — The Aviationist, Mar 2026