Allied nations globally, spanning Europe, the Indo-Pacific, the Middle East, and the Americas, are confronted with a pressing strategic reality: the imperative for persistent airspace awareness is here and now, not in 2035. Traditional large-platform approaches are proving economically burdensome due to crippling lifecycle costs and decreasing availability as older platforms become harder to maintain. Consequently, allies are ramping up efforts to deploy more agile, interoperable, and survivable capabilities for rapid response.
L3Harris’ AERIS X™ airborne early warning and control (AEW&C) solution exemplifies this shift in approach, delivering proven performance, sustainable economics, and operational readiness that aligns with emerging threats.
Combat-Proven Performance When It Matters Most
Current conflicts have revealed significant gaps, particularly against unmanned aerial vehicles (UAVs), low-observable threats, and high-altitude cruise and ballistic missiles. The AERIS X missionized business jet solution, coupled with novel manned-unmanned teaming strategies, is pivotal for enhancing detection speed, widening coverage, and providing flexibility to adapt to rapidly changing threats while maintaining a low observable profile. AERIS X radar systems have been battle-tested, successfully defending against hundreds of UAVs, cruise missiles, and ballistic missiles in the most demanding operational theaters. Utilizing Active Electronically Scanned Array technology, the system offers genuine 360-degree coverage, over 30% extended detection range, and resilience against jamming.
“The operational lessons from current conflicts are clear,” remarked Craig O’Donnell, International Business Development Director for ISR at L3Harris. “Seeing everything and seeing it earlier aren’t optional; they’re essential for defending one’s homeland.”
Global Operational Readiness and Market Validation
With 106 delivered missionized business jets achieving availability rates above 90% across various allied nations, L3Harris exemplifies what a sustainable AEW&C capability entails. Recent selections by allies—such as the Republic of Korea opting for L3Harris over existing platforms, along with another leading NATO nation selecting L3Harris as their ISR provider, reflect a significant trend in how allies assess cost, readiness, and technical risk.
The Commercial Aircraft Advantage
The utilization of modern, fuel-efficient business jets dramatically alters the economics of AEW&C. With reduced acquisition costs, expedited modification timelines that span months instead of years, global supply chains, and sustainable lifecycle costs, these advancements stand in stark contrast to large, unsustainable military platforms facing obsolescence.
With aging AEW&C fleets grappling with availability challenges and protracted, costly replacement efforts, a widening gap in accessible, persistent coverage is occurring. Allies can no longer afford development timelines extending over a decade that fail to keep pace with the threat landscape.
Future-Proofing for 5th and 6th Generation Integration
Advanced tactical datalinks facilitate multi-domain coordination and target cuing for fifth- and sixth-generation fighter aircraft. For nations investing billions in F-35s and future Collaborative Combat Aircraft, AERIS X represents the necessary solution to optimize these investments without compromising stealth capabilities.
The AERIS X conformal radar design is particularly noteworthy for future capability enhancements. Its open architecture allows for affordable upgrades as technology advances. Unlike traditional rotodome or fixed-array systems, the conformal design permits sensor upgrades without affecting the aircraft’s outer mold line, thus streamlining complexity, cost, and timelines for continuous capability improvement.
“Allies are prioritizing platforms that can incorporate new sensors and capabilities without significant modifications to the aircraft,” stated George “Riebs” Riebling, International Business Development for ISR at L3Harris. “That’s the essence of future-proofing.”
Sovereignty and Strategic Partnership
Allied nations increasingly prioritize in-country sustainment, technology transfer, and control over the long-term evolution of capabilities. L3Harris’ approach to defense partnerships acknowledges this necessity, presenting pathways to sovereignty that reshape conventional defense dynamics. Tailored sustainment, training, and industrial participation will be customized to national needs rather than offering a generic solution. This strategy bolsters partners’ defense industrial bases while ensuring operational independence.
For countries like Canada, Poland, and other European allies integrating F-35s into their fleets, interoperability is non-negotiable. AERIS X delivers the sensor performance and NATO integration essential for layered defense with the adaptability to evolve in response to advancing threats and technologies.
The Right Choice for Every Theater
Allied nations are presented with unique yet equally urgent requirements across different theaters—from NATO integration and F-35 interoperability within the EUCOM area of responsibility, to maritime and aerial threat detection across the vast expanses of INDOPACOM, to homeland defense against UAVs, cruise missiles, and ballistic missiles in CENTCOM, and Arctic sovereignty coupled with continental defense in NORTHCOM.
The core question is not whether allies need AEW&C capability—it is whether they can afford to wait for solutions that won’t materialize until the mid-2030s, or if they require reliable, sustainable operational capacity today.
The evolution of airborne mission systems will be defined by their ability to operate effectively even when traditional ground-based networks are compromised, providing real-time awareness, responding to emerging threats, and ensuring that allied forces maintain a decisive advantage, even in the most contested environments.
AERIS X meets all these theater-specific needs with a unified, adaptable platform. With combat-proven performance, availability rates over 90%, sustainable lifecycle costs, and the flexibility to adapt to evolving threats and technologies, AERIS X is ready now—across all theaters.
Source: L3Harris (2026-04-24)
