“The F‑22 is our bridge to NGAD,” said Brig. Gen. Jason D. Voorheis recently, highlighting the Air Force’s desire to make its top-of-the-line fifth‑generation fighter last until the next generation of air supremacy comes along. That bridge is now being strengthened with an $8 billion modernization effort to keep the Raptor flying well into the 2040s.
Central to the upgrade package is the Infrared Defensive System, or IRDS, an embedded sensor network taken from Lockheed Martin’s TacIRST technology. The system will detect the weak heat signatures of distant air‑to‑air and surface‑to‑air missiles at farther ranges and with greater accuracy than the F‑22’s existing AN/AAR‑56 missile launch detector. “We understand the need for advanced and versatile infrared systems like IRDS that will make pilots’ missions more survivable and lethal against current and future adversaries,” stated Hank Tucker, Lockheed Martin’s vice president of Mission Systems. The IRDS would also bring the Raptor closer to the all‑direction situational awareness of the F‑35’s Distributed Aperture System, although the Air Force hasn’t confirmed what exactly it can do.
The IRDS will add to an independent infrared search‑and‑track (IRST) capability, accommodated within stealth‑formed external pods. The chisel‑shaped pods, already visible on test planes, will enable the F‑22 to passively detect and track low‑observable threats like China’s Chengdu J‑20. Networking several IRST sensors across planes may provide for real‑time triangulation of a target’s range an capability Lockheed Martin has already proven through its Legion Pod system. In a world where radar emissions can give away an airplane’s location, this passive detection is a key counter to the increasing electronic warfare capabilities of enemies.
Low Drag Tanks and Pylons is another significant component. These external fuel tanks optimized for stealth are designed to add range to the Raptor without sacrificing its radar cross‑section or supercruise capability. Existing F‑22s have a combat range of approximately 750 nautical miles with standard tanks; the new design utilizes smart rack pneumatic technology to reduce drag when tanks are dropped and allow sustained supersonic flight with tanks carried. The Air Force budget reports include testing up to Mach 0.95, with intention to certify the system to operate at Mach 1.2. This fills a long-standing range gap with peer rivals China’s J‑20, for instance, has a combat range of around 1,100 nautical miles.
Aside from these banner systems, the “viability” upgrade package includes upgrades to low‑observable coatings, radar performance, electronic warfare defenses, pilot‑vehicle interfaces, and cybersecurity. Half-secretive tests of mirror-like radar-absorbent coatings on F‑22s and other stealth aircraft indicate the Air Force is experimenting with new signature management methods. The enhancements will also include the Thales Scorpion Helmet Mounted Display and the Next Generation Fixed Wing Helmet, features not available on the original Raptor design but now required for contemporary air combat.
The modernization process is as much a matter of strategic timing as it is a matter of technology. The Air Force’s sixth-generation F‑47, now in development by Boeing under the Next Generation Air Dominance program, has encountered changing timetables and industrial headwinds, including a labor strike by thousands of aerospace workers and technical challenges on other fighter programs. With the F‑47’s deployability still in doubt, the Raptor’s position as the spear tip in contested airspace remains irreplaceable. “From an F‑22 sunsetting perspective, I don’t have a date for you,” Voorheis testified. “We are hyper‑focused on modernization to sustain that air superiority combat capability for a highly contested environment for as long as necessary.”
The size of the investment is indicative of the Air Force’s optimism about the platform’s structural life and upgrade capability. Of the 185 Raptors in stock, 143 are combat-coded, and these will all get the complete set of upgrades. The projected budget of the service through fiscal 2029 includes $4.7 billion for procurement and $3.1 billion for research, development, testing, and evaluation of F‑22 upgrades. Even the 32 older Block 20 jets, originally to be retired, have champions within Air Combat Command who contend they are still useful for training and might be called upon for combat if necessary.
Within the larger context of stealth aircraft survivability, the upgrades to the F‑22 reflect trends among cutting-edge air forces worldwide: minimizing radar cross‑section through improved shaping and coatings, reducing infrared signatures in order to counter proliferating IRST systems, and incorporating multi‑spectral sensors to achieve hardy target acquisition. As peer opponents deploy missiles with ranges near 1,000 miles and sensors to detect legacy stealth profiles, these actions are not discretionary they are requirements for preserving the “first look, first shot, first kill” advantage U.S. air supremacy has enjoyed for decades.
