Combat air teaming system rewrites how India will fly into contested airspace

The combat air teaming system, or CATS, is a four-node manned-unmanned architecture under development at Hindustan Aeronautics Limited for the Indian Air Force. HAL CMD D.K. Sunil confirmed on 28 November 2025 at the ANI National Security Summit that the flagship CATS Warrior first flight has slipped to 2027 from the earlier 2026 target. CATS is no longer a single-drone concept; it is an operational roadmap linking Warrior, Hunter, ALFA-S, Infinity, and the Tejas-based MAX mothership into one teaming framework.

Defining the combat air teaming system

The combat air teaming system is not a single UAV. It is a node-based CATS architecture built around one controlling aircraft and multiple unmanned systems operating at different altitudes, ranges, and mission profiles. HAL refers to the controlling aircraft layer as the Mothership for Air Teaming eXploitation, or MAX.

Inside the architecture, the manned fighter acts as the mission commander. The unmanned systems extend sensing range, strike depth, survivability, and saturation capacity. That design aligns with the broader MUM-T India doctrine visible across Indian military aviation planning.

HAL CMD D.K. Sunil described CATS Warrior during the Q4 FY25 earnings call as a three-ton UCAV under active research and development (HAL, 16 May 2025). The same call positioned CATS as a long-horizon programme rather than a near-term inductee. That framing matters because CATS is not one drone but a four-node family.

The Ministry of Defence's Technology Perspective and Capability Roadmap 2025 names stealth UCAVs with loyal-wingman roles as a future capability priority (Ministry of Defence, 12 September 2025). The same roadmap lists internal weapons carriage up to 4,000 kilograms and AI-assisted flight profiles in the same priority set. CATS sits cleanly inside that doctrine.

Mapping the four operational nodes of CATS

The HAL CATS Warrior is the lead node because it functions as the HAL loyal wingman drone inside the broader architecture. The Warrior is the headline loyal wingman India is fielding alongside a Tejas pilot. The platform is designed to fly ahead of manned fighters into contested airspace while carrying sensors, precision weapons, or electronic warfare payloads.

The revised Warrior shown at Aero India 2025 carried visible low-observable shaping revisions (HAL, 10 February 2025). The serpentine intake moved the engine face away from direct radar visibility, and the upper-fuselage inlet reduced frontal exposure. HAL also confirmed that engine ground runs for the full-scale demonstrator had been completed in Bengaluru on 11 January 2025.

The Hunter node serves a long-range precision-strike profile rather than a reusable wingman role. ALFA-S sits one layer below as a saturation system. Infinity occupies the highest operational layer as a high-altitude pseudo-satellite for persistent ISR and communications relay missions. Each node is detailed in the dedicated H2s below; the architectural point is that the four nodes share one mothership and one teaming logic.

The four-node layered design explains why the combat air teaming system matters beyond one aircraft. It creates an air combat architecture where strike drones, surveillance systems, swarm platforms, and manned fighters operate as one coordinated package. Readers tracking the wider landscape can compare this shift with military drone programmes India is building and how India's airspace map governs every flight.

The Tejas mothership and the MAX construct

The Tejas mothership concept sits at the centre of the MAX construct because the fighter aircraft acts as the command node for every other platform. Instead of flying independently, the unmanned systems remain linked through datalinks, mission computers, and sensor-sharing architecture.

HAL describes MAX as the operational backbone that enables MUM-T India capability development. In practice, a Tejas pilot could direct ALFA-S swarm drones toward one sector while assigning a Warrior UCAV to electronic warfare suppression in another. The aircraft becomes less of a stand-alone fighter and more of a command-and-control aircraft inside contested airspace.

That shift changes survivability logic. Traditional fighter operations force pilots to enter the densest layers of enemy air defence. A loyal wingman architecture allows unmanned systems to absorb the highest-risk profiles instead. The manned fighter remains farther back while still controlling strike or ISR operations through secure networking.

The Indian Air Force has publicly adopted a measured position on collaborative combat aircraft timelines. Air Marshal Radhakrishnan Radhish addressed the Dubai International Air Chiefs' Conference on 12 November 2023 (FlightGlobal, 12 November 2023). He said that fully mature capability could remain 10 to 20 years away. The caution reflects the complexity of autonomous navigation, sensor fusion, secure communications, and weapons authorisation.

Unpacking the CATS Hunter cruise missile node

CATS Hunter serves a different mission profile from Warrior. Instead of acting as a reusable loyal wingman drone, Hunter operates as a long-range precision-strike vehicle designed to penetrate defended airspace. The concept overlaps doctrinally with India's expanding loitering munition ecosystem.

The difference is structural. Hunter sits inside a networked combat-air framework, not as an isolated munition platform. The MAX mothership controls Hunter release timing, target hand-off, and terminal phase sequencing. That networking turns a single cruise weapon into part of a coordinated package.

The Hunter range envelope places it in the standoff-strike layer of the architecture. Carrier aircraft can release the weapon from outside the densest defended airspace, while the Warrior layer and ALFA-S swarms operate at closer ranges. The three layers stack to create depth in the combat package, rather than relying on one platform to do everything.

Hunter also widens the procurement logic for CATS. A long-range strike node alongside loyal wingmen and swarms moves the programme from a single-drone story into a layered combat system. That breadth is the procurement signal defence integrators should read.

The ALFA-S swarm drone and CATS Infinity pseudo-satellite

The ALFA-S swarm drone node pushes the architecture toward saturation warfare. HAL presented ALFA-S as a swarm system deployable from airborne platforms. Multiple low-cost drones disperse after release. They overwhelm radar coverage, defensive missiles, or surveillance systems through volume and distributed flight paths.

The doctrinal logic is different from a single high-value strike. Where Warrior penetrates and Hunter strikes, ALFA-S saturates. The swarm layer is designed as the lowest-cost of the four nodes, which inverts the cost calculation for the adversary.

CATS Infinity sits at the opposite end of the operational spectrum. HAL positions it as a high-altitude pseudo-satellite platform designed for persistent ISR and communications relay missions. Unlike Warrior, Hunter, or ALFA-S, Infinity focuses less on strike operations and more on maintaining surveillance and datalink continuity during long-duration missions.

The Infinity HAPS endurance target is measured in weeks rather than hours. The platform is intended to provide a quasi-orbital sensing layer that complements the lower-altitude strike nodes. Together with the strike layers, Infinity completes the four-node stack. Persistence sits at the top, strike depth in the middle, saturation at the edge, and wingman survivability beside the manned fighter.

Why the Kiran OMCA is the testbed that de-risks CATS

The Kiran OMCA is not formally one of the four operational CATS nodes, but it may become the programme's pivotal enabling platform. HAL uses the modified Kiran aircraft as an optionally manned combat aircraft testbed for avionics, datalinks, mission systems, and autonomous-control experimentation tied to the Warrior roadmap.

HAL confirmed that the Kiran OMCA completed maiden validation work at its Bengaluru facility during January 2025. The aircraft allows engineers to test communication architecture and flight-control behaviour without risking the primary Warrior prototype during every software iteration.

The Kiran OMCA CATS pairing matters because the 2027 slip appears tied to integration maturity rather than hardware fabrication. Datalink resilience, sensor fusion reliability, and pilot-command logic all require live-flight validation before operational deployment becomes possible.

The Kiran OMCA acts as a bridge between concept demonstrations and operationally relevant manned-unmanned teaming capability. Instead of waiting for the final Warrior prototype, HAL can validate software stacks incrementally inside a reusable flying laboratory.

The layered approach mirrors how advanced combat-air programmes worldwide separate avionics validation from operational prototype development. HAL's adaptation of the Kiran airframe compresses that risk into an indigenous testing environment. The category framing also draws on the DGCA drone categories from nano through large and the broader policy backbone of the Drone Rules 2021.

Reading the slipped first-flight schedule and the IAF demand signal

The 2027 first-flight target defines the next phase of the combat air teaming system. HAL CMD D.K. Sunil confirmed the schedule shift at the ANI National Security Summit on 28 November 2025 (HAL CMD statement, 28 November 2025). He named flight-control software and weapons integration as the gating items.

The bottleneck is not the airframe itself; it sits inside software integration, secure datalinks, and teaming logic. HAL must validate flight-control behaviour, weapons release, low-observable shaping performance, and secure networking before the Warrior can move into sustained flight trials. The CATS Warrior 2027 target therefore acts as a forcing function for the entire programme. It is the gating window for the CATS Warrior first flight to move from staged ground work to live envelope expansion.

The Indian Air Force has started signalling future demand scale. National Defence Industries Conclave 2026 reporting indicated an indicative IAF requirement of around 100 Indian Air Force UCAV systems (NDIC 2026 reporting, March 2026). The figure tracks the CATS Warrior class.

It is a demand signal rather than a formal procurement commitment, but it reframes the programme economically. Readers exploring adjacent unmanned categories can also compare the architecture with kamikaze drones and loitering munitions in Indian service and how the DGCA classifies different types of drones.

Where CATS fits inside the broader UCAV pipeline

The Technology Perspective and Capability Roadmap published by the Ministry of Defence in September 2025 provides the doctrinal justification for the next phase. The same roadmap identified stealth UCAVs, manned-unmanned teaming, AI-assisted mission systems, and long-range strike integration as future capability priorities. The strategic logic behind CATS already exists inside official Indian force-planning documents.

The Defence Acquisition Council then approved four squadrons of indigenous Remotely Piloted Strike Aircraft for the Indian Air Force on 27 March 2026. CATS does not sit directly inside that acquisition decision. The RPSA track runs through the DRDO Ghatak programme rather than HAL's CATS family. The procurement signal still matters because it confirms that unmanned strike aviation has entered long-term force planning.

The Defence Acquisition Procedure pathway will shape the CATS timeline. Once HAL completes developmental milestones, the programme would still need user evaluations, limited-series production decisions, and eventual Defence Acquisition Council approvals before squadron-level induction becomes possible. The HAL manned-unmanned roadmap therefore sits inside a procurement pipeline that already accommodates unmanned strike aviation. The Indian collaborative combat aircraft category is now established inside Indian doctrine; the operational challenge is translating that doctrine into a stable flight-tested architecture.

For defence integrators, the architectural breadth is the signal. Warrior alone does not define the programme. The opportunity sits inside datalinks, mission systems, autonomous-control software, swarm coordination, secure communications, ISR relays, and payload integration.

For defence journalists, the more important milestone may not be the first Warrior flight itself. The next operational inflection point is the live-flight datalink demonstration between the Kiran OMCA and a Warrior prototype. The broader regulatory layer continues to evolve in parallel, including where type certification fits inside the Indian drone ecosystem and how NPNT enforces airspace discipline on Indian drones.

India's next phase of combat-air development depends less on building one stealth platform. It depends more on proving that one pilot can command a distributed unmanned formation in contested skies.