Key Points – Boeing’s F-15EX Eagle II, an advanced 4.5+ generation fighter, is emerging as a key asset for the US Air Force, excelling as a high-payload “flying weapons truck” with a 29,500lb capacity for standoff engagements and potentially controlling unmanned “Loyal Wingmen” drones.
-Its two-seat configuration, modernized avionics, powerful radar, and advanced mission computing systems facilitate this manned-unmanned teaming and enhanced situational awareness.
-With production ramping up (90 aircraft in pipeline), the F-15EX is designed to augment the capabilities of stealth fighters like the F-22, F-35, and the upcoming F-47, leveraging its range and firepower in complex air campaigns.
Meet the F-15EX
The latest iteration of the venerable F-15, the F-15EX, offers high range, exceptional payload capacity, and updated electronics and radar—but will these features keep the fighter relevant in modern air-to-air combat?
Boeing’s F-15EX is an advanced iteration of the F-15 Advanced Eagle, an update to the F-15 originally intended for export. Compared to legacy F-15s, the F-15EX sports a more modernized suite of avionics, a new electronic warfare system, what Boeing calls the world’s most powerful radar, and an “advanced crew station.” The jet’s payload capacity has also been expanded.
Though the F-15 first flew in the 1980s, the U.S. Air Forces hope that this greatly enhanced version of the Cold War-era jet can not only remain relevant for years yet to come but that it will also be able to actively participate in combat in the future and augment the capabilities of more advanced fighters like the F-22, the F-35, and the upcoming F-47 sixth-generation fighter.
Manned and Unmanned Collaborative Teaming
The future of air combat, that is, the collaboration between piloted aircraft and their unmanned drone counterparts, often referred to as Loyal Wingmen, could also see the F-15EX play a role—at least in scenarios where the F-15EX wouldn’t necessarily face a concerted threat from fifth—or sixth-generation aircraft or robust anti-aircraft assets. Boeing touts the F-15EX’s future ability to fly in tandem with these capable, perhaps expendable, aircraft.
“Facilitated by its advanced mission computing, platform architectures, communication networks and comprehensive sensor suite, the F-15EX provides a realistic growth path to the future of manned-unmanned teaming. These foundational components, enhanced by its two-seat configuration, advanced crew station and large area display, empower the F-15EX to manage increased workloads with heightened situational awareness and control,” Boeing explains.
“Facilitating airborne battle management and joint all domain command and control, the F-15EX is provisioned to redefine air dominance and provide a dynamic and flexible option for air superiority of the future.”
A key component of the F-15EX to stay relevant today, in an aerial environment that is increasingly filling with stealthy, fifth-generation aircraft—with even more capable sixth-generation aircraft on the horizon—is the F-15EX’s two-seat cockpit. However, the rear position of the pilot is traditionally staffed by a Weapon Systems Officer, aptly responsible for the jet’s weapon systems. However, in the case of the F-15EX, Boeing explains that the traditional WSO position can be adapted to “address emerging challenges” by serving as a battle space manager and operator of Loyal Wingmen collaborative combat aircraft.
Given the complexities of flying with Loyal Wingmen, assigning targeting data, defensive countermeasures, and other tasks, the F-15EX offers “heightened situational awareness and control.”
F-15EX: Revamping for a New Cold War
Part of the impetus for expanding the F-15 fleet was a truncated F-22 Raptor procurement. That fighter, a fifth-generation air superiority fighter regarded as the stealthiest fifth-generation fighter, faced a lack of purpose following the end of the Cold War.
Originally designed to control the air in highly contested aerial environments against the United States’ key geopolitical adversary, the Soviet Union, in subsequent years, the F-22 procurement was severely curtailed. Without an opponent or likely use case, the U.S. Air Force decided to trim costs and limit the F-22 fleet to less than 200 jets. Once that production line closed down, any future expansion of the F-22 fleet disappeared.
The F-15EX hopes to bridge the gap between advanced but limited fighters like the F-22 and the upcoming F-47, the U.S. Air Force’s sixth-generation fighter. That jet, expected to be highly stealthy and incorporate a number of advanced and previously novel technologies—in particular, the ability to liaise and fight alongside Loyal Wingmen drones—was announced to great fanfare by President Donald Trump and Secretary of Defense Pete Hegseth from the Oval Office earlier this year.
Boeing recently announced an F-15EX production ramp-up. Thanks to improved factory performance and efficiency measures taken at their F-15 plant, the company has 90 F-15EXs in the production pipeline.
While lingering questions about that platform, including total acquisition numbers and the jet’s overall capabilities—even its general shape is shrouded in secrecy—one of the most pressing questions is when it will enter service with America’s flying branch.
A Flying Weapons Truck
Boeing touts the F-15EX’s payload capacity, listed as 29,500 pounds, or about 13,300 kilograms, which the aerospace firm includes “outsized weapons” as well as “12 AMRAAMs or other large ordinance,” capabilities that the U.S. Air Force hopes will allow the latest F-15 variant to serve as a high-capacity platform capable of launching a variety of weapons from stand-off ranges, safely away from contested airspace, but still able to exert agency on the battlefield.
What Happens Next on F-15EX?
“With low operating costs compared to other fighters yet four times the weapons payload and twice the fuel, range and speed,” Boeing explains, “the F-15EX represents a modern solution that global Air Forces can field within their schedule.”
Though the F-15EX could hardly be expected to go toe-to-toe with the most advanced fifth or sixth-generation aircraft, by leveraging high payload capacity and range, the jet could find itself in a unique position in the future: fighting alongside fifth-generation, sixth-generation, and Loyal Wingmen aircraft, while still participating in combat.
About the Author: Caleb Larson
Caleb Larson is an American multiformat journalist based in Berlin, Germany. His work covers the intersection of conflict and society, focusing on American foreign policy and European security. He has reported from Germany, Russia, and the United States. Most recently, he covered the war in Ukraine, reporting extensively on the war’s shifting battle lines from Donbas and writing on the war’s civilian and humanitarian toll. Previously, he worked as a Defense Reporter for POLITICO Europe. You can follow his latest work on X.
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