F-15EX Eagle II vs F-22 Raptor

The USAF is currently fielding the F-15EX Eagle II to backfill a depleted fighter inventory, paying a unit cost of roughly $150 million—identical on paper to the historical flyaway cost of the F-22 Raptor. This price parity forces a direct comparison between a non-stealthy, open-architecture missile truck built for payload capacity and an out-of-production, stealth-first air dominance fighter constrained by 1990s-era avionics.

Development and Design

Lockheed Martin designed the F-22 around Very Low Observable (VLO) stealth and supercruise to penetrate Soviet airspace. To maintain its radar cross-section, the Raptor relies on internal weapons bays, limiting its air-to-air loadout to six AIM-120 AMRAAMs and two AIM-9 Sidewinders. Boeing took the opposite approach with the F-15EX. Derived from the Saudi F-15SA and Qatari F-15QA export variants, the Eagle II abandons stealth in favor of payload and open architecture. The transition to a fully digital flight control system unlocked wing stations 1 and 9, allowing the F-15EX to carry 12 air-to-air missiles natively. Instead of physical signature reduction, the EX relies on the AN/ALQ-250 EPAWSS for active electronic warfare survival.

Specifications and Performances

Kinematic metrics dictate different engagement tactics for both airframes. The F-22 controls engagements through altitude and persistent speed. Its Pratt & Whitney F119-PW-100 engines enable sustained flight above Mach 1.5 without afterburner, allowing it to impart higher kinetic energy to its missiles from a service ceiling of 19,812 meters. The F-15EX generates a higher theoretical top speed of 2,655 km/h using General Electric F110-GE-129 engines, but doing so requires fuel-heavy afterburner usage while carrying drag-inducing external stores. The Eagle II’s advantage lies in its 29,500 lb payload capacity and power generation. The AN/APG-82(V)1 AESA radar on the EX leverages this power for broader electronic attack capabilities compared to the older AN/APG-77 on the F-22.

Deployment and usage

The F-22 achieved Initial Operational Capability in 2005 but saw its combat debut delayed until 2014 during Operation Inherent Resolve in Syria. In combat, commanders utilized the Raptor as a forward sensor node, exploiting its stealth and radar to manage the battlespace for 4th-generation assets. The fleet consistently struggles with readiness rates stemming from:

• Stealth coating maintenance requirements
• Historical oxygen supply system faults
• A capped production run of 195 units that limits spare parts availability

The F-15EX reached IOC in July 2024 with the 142nd Wing. Doctrinally, the USAF positions the EX for homeland defense and as a stand-off weapons magazine. In a peer conflict, F-15EXs are tasked to fly behind the stealth fighter screen, firing outsized munitions based on targeting data passed back by F-22s and F-35s.

Conclusion

The F-22 Raptor outclasses the F-15EX in first-day offensive counter-air missions against peer adversaries. A non-stealthy airframe emitting an EPAWSS jamming signal cannot survive inside the engagement envelopes of modern integrated air defense systems like the S-400. However, the F-15EX provides greater utility for every other mission set. Its open ADCP II architecture allows software integration timelines measured in months rather than the years required for the Raptor’s closed systems. For homeland defense, airspace policing, and serving as a high-capacity magazine networking with stealth assets, the F-15EX delivers the payload volume and sustainable lifecycle costs that the strictly capped, maintenance-heavy F-22 fleet cannot match.