E-7 Wedgetail vs GlobalEye Comparison and Verdict

In the E-7 Wedgetail vs GlobalEye contest, Boeing’s 737-based airborne early warning aircraft offers 360-degree radar cover while Saab’s business-jet-based GlobalEye trades that for lower operating cost and a multi-domain sensor package that watches air, sea and ground targets at once. Both are sold to air forces that want to see hundreds of kilometers beyond their borders, and the choice between them depends on the mission and the budget.

360 deg

E-7 radar coverage from a fixed top-mounted array

~11 hrs

GlobalEye endurance claimed by Saab

4

Countries operating or ordering the E-7 (Australia, Turkey, South Korea, UK)

2

GlobalEye launch customers reported, Sweden and the UAE

E-7 Wedgetail vs GlobalEye specs

Side-by-side comparison

Feature	Boeing E-7A Wedgetail	Saab GlobalEye
Airframe	Boeing 737-700 (Next Generation)	Bombardier Global 6000 business jet
Primary radar	Northrop Grumman MESA, L-band, fixed top-mounted array	Saab Erieye ER, AESA arrays in a roof-mounted pod
Radar coverage	360 degrees, without rotation	Side-looking, covering two sectors fore and aft
Other sensors	ESM, IFF, datalinks, electronic support	Multiple sensors for air, sea and ground targets, plus maritime radar
Mission crew	Roughly 10 to 12 mission operators	Roughly 5 to 6 mission operators
Endurance	About 10 hours unrefueled, refuelable in flight	More than 10 hours, Saab claims about 11
Operators	Australia, Turkey, South Korea, UK	Sweden, UAE
Manufacturer	Boeing with Northrop Grumman	Saab

Figures are rounded and drawn from manufacturer and operator descriptions. Detection range is deliberately omitted because public numbers vary by target size and radar mode.

The airframes show the core trade-off. The 737 carries a large fixed radar array and a bigger crew, and it can also be refueled in the air. The Global 6000 is smaller and cheaper to fly, and it can climb higher. That affects how long an aircraft can stay on station and how much it costs to keep in the air.

Which radar is better

Both aircraft rely on active electronically scanned array radars, a technology that steers beams electronically rather than with moving parts, explained in the guide to how AESA radar works. MESA is a large, fixed, tilted array that provides all-around coverage, including directly behind the aircraft. Erieye ER is a pair of side-looking arrays that cover large sectors to the left and right, with gaps ahead and behind that aircraft fills by turning.

Saab and Northrop Grumman both claim detection ranges of several hundred kilometers against air targets, but there is no fair public way to rank them. Real performance depends on target size, altitude, radar mode and the electronic environment. What can be said is that MESA offers more flexible coverage with a bigger aircraft, and Erieye offers a solid sensor on a lighter platform.

E-7 Wedgetail strengths and weaknesses

The Wedgetail has a proven record. Australia has operated it since the late 2000s, and Turkey, South Korea and the UK have followed. It fits smoothly into Link 16 networks, carries a big operator team and can be refueled. The US Air Force has also considered it as a successor to the E-3 Sentry AWACS, although the American plan has been shaped by budget decisions and its status can change.

The weaknesses are cost and size. The aircraft is expensive to buy and to support, it needs a substantial runway, and the program has a record of delays, with the Australian buy arriving years late.

GlobalEye strengths and weaknesses

GlobalEye’s appeal is its multi-role design. Saab describes it as watching for aircraft, cruise missiles, ships and ground movers at the same time, which suits countries with long coastlines. The aircraft is cheaper to run than a 737-class platform, and its maker Saab has positioned it as an option for smaller air forces and as part of Europe’s defense buildup. Other countries have shown interest and the order book is growing.

The downsides are a smaller crew, less cabin space for growth and a shorter track record. With fewer operators than the E-7, there is less combined operating experience to draw on.

E-7 vs GlobalEye verdict by mission

Which aircraft fits which mission

Mission profile	Better fit	Why
High-end air battle management for a large force	E-7 Wedgetail	360-degree radar, larger crew, in-flight refueling
Maritime and littoral surveillance	GlobalEye	Multi-domain sensors, lower cost per flight hour
Smaller air force on a tight budget	GlobalEye	Lower acquisition and support burden
NATO interoperability at scale	E-7 Wedgetail	Matches allied fleets and common support
Mixed air, sea and ground monitoring	GlobalEye	Designed around a wide sensor set

Editorial assessment based on public information. Actual suitability depends on customer requirements and integration.

Editor’s read

There is no single winner. The E-7 is the heavyweight for big air battles, and GlobalEye is the flexible, more affordable option for broader surveillance. For a fuller ranking of the field, see our top 10 AEW&C aircraft list.