Sierra Nevada Corporation (SNC) has reached a significant milestone with the U.S. Army's intelligence capabilities, as its pair of ATHENA-S jets have finished rigorous testing and begun supporting operational missions. The announcement on April 15, 2026, confirms that both contractor and government evaluation of the high-altitude signals intelligence platforms has concluded successfully, clearing them for Contractor-Owned, Contractor-Operated duties.
The ATHENA-S aircraft are modified Bombardier Global 6500 business jets integrated with SNC's RAPCON-X rapid mission configuration system. Work was performed at the company's facility in Hagerstown, Maryland, where mission systems were installed and validated through extensive ground and flight testing. The platforms emphasize artificial intelligence and machine learning tools to streamline processing, exploitation and dissemination of collected intelligence, aligning with concepts of cognitive electronic warfare that can automatically detect and counter threats.
This activation comes as the Army transitions away from its aging turboprop-based ISR fleet, including the RC-12 Guardrail and related systems, which were fully retired by the end of 2025. ATHENA-S joins related efforts such as the ATHENA-R radar variant, ARTEMIS and ARES programs, all operating under similar contractor support models. These initiatives collectively inform requirements for the High Accuracy Detection and Exploitation System (HADES), a longer-term program centered on high-altitude, long-endurance sensing up to 51,000 feet.
In January 2026, the Army issued a request for information covering up to 11 additional Global 6500 aircraft for HADES, building on lessons from the current ATHENA demonstrators. SNC has been deeply involved, previously securing a substantial contract for the ATHENA-S effort and investing its own resources to accelerate platform development.
The two ATHENA-S jets, registered as N650SN and N650RX, deployed to Mactan-Cebu International Airport in the Philippines in early April 2026. Flight data showed one aircraft operating with the callsign LATTE92 arriving around April 1, followed by its sister ship LATTE18 days later after refueling stops in Hawaii and Guam. Operations have included nighttime missions and activity over the South China Sea, underscoring the platforms' relevance to Indo-Pacific security dynamics.
Andrew Evans, director of strategy and transformation for Army G-2, stated that the ATHENA platforms enable faster delivery of timely intelligence to commanders operating in challenging environments. SNC Executive Vice President Tim Owings highlighted the company's integration expertise and the advantages of adapting proven commercial airframes for rapid capability delivery.
The ATHENA-S deployment provides the Army with enhanced standoff sensing, endurance exceeding 12 hours with significant payloads, and improved survivability compared to legacy systems. As HADES matures toward potential government-owned operations, data from these initial jets will shape sensor suites and architectures for the next-generation fleet. Industry observers view this as a critical step in modernizing Army deep-sensing capabilities against peer adversaries.