(DEFENCE SECURITY ASIA) — Russia is repositioning its two-seat Su-57D from a straightforward conversion trainer into an experimental airborne command-and-control platform intended to test manned-unmanned teaming, combat artificial intelligence and operational concepts associated with sixth-generation air warfare.

The prototype remains a fifth-generation Su-57 derivative rather than a sixth-generation fighter, but its second cockpit potentially addresses a critical problem confronting advanced air forces: how one tactical aircraft can simultaneously fight, process battlespace information and command autonomous unmanned systems.

The aircraft is undergoing flight testing after making its maiden flight in May 2026, opening an evaluation programme focused on specialised flight regimes, crew coordination and technologies intended to connect crewed fighters with increasingly intelligent unmanned combat aircraft.

Sukhoi Design Bureau Director Mikhail Strelets identified the S-70 Okhotnik alongside grouped and swarming unmanned systems, arguing that a second crew position becomes important when the primary pilot must remain concentrated on accomplishing the aircraft’s principal combat mission.

“This is particularly important for controlling highly intelligent systems such as the Okhotnik,” Strelets said, extending the concept toward swarming and grouped unmanned systems whose management could otherwise impose substantial cognitive demands upon a single fighter pilot.

That distinction is strategically important because Russia is not claiming that the Su-57D itself represents a completed sixth-generation combat aircraft, but rather that the two-seater could become a developmental bridge for technologies associated with that future category.

The programme consequently places human-machine teaming at the centre of Su-57D development, with the rear cockpit potentially functioning as an airborne mission-command station capable of managing unmanned assets while the forward pilot concentrates on aircraft survival and combat employment.

Russian industry also intends to use the aircraft for combat artificial-intelligence experimentation, potentially making the Su-57D a flying laboratory for determining how AI-assisted decision-making can be integrated into a tactical aircraft without overwhelming its human crew.

Yet important capability gaps remain because there is no confirmed evidence that the prototype has operationally controlled an Okhotnik, directed a drone swarm or flown with combat-AI software, making these developmental objectives rather than demonstrated combat capabilities.

The distinction between programme ambition and verified capability is especially significant because the flying aircraft is a converted early Su-57 prototype rather than a production-standard two-seater, limiting conclusions about eventual configuration, survivability, payload, networking architecture or production readiness.

Nevertheless, the Su-57D points toward a broader transformation in Russian airpower doctrine where tactical fighters could evolve from individual weapons platforms into distributed battlespace nodes coordinating sensors, weapons and unmanned aircraft across a networked combat formation.

If successfully matured, that architecture could alter Russian force posture by allowing a Su-57 formation to distribute reconnaissance, targeting, electronic-support and potentially strike functions across unmanned systems while retaining airborne human command close to the contested battlespace.

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Su-57D Turns the Second Cockpit Into an Airborne Command Post

The Su-57D concept fundamentally changes the purpose of a second crew position because the rear operator is envisaged not merely as an instructor, but potentially as a mission commander managing networked manned and unmanned combat operations.

A 2023 design concept described a multifunctional two-seat low-observable tactical aircraft capable of remaining a fighter-bomber while simultaneously serving as an airborne command post for network-oriented mixed aircraft groups and as a control point for unmanned aerial vehicles.

That architecture envisaged satellite communications, high-speed datalinks and group-information equipment, indicating that the military value of the second cockpit depends less upon additional flying manpower than upon connectivity, information fusion and distributed command across multiple airborne platforms.

The rear station was conceived around a larger panoramic situational display and additional screen, with controls allowing flying priority to pass between cockpits while eliminating functions unnecessary for the second crew member’s specialised command or weapons-management responsibilities.

This configuration could reduce pilot workload during complex missions because command of unmanned aircraft, interpretation of networked sensor tracks and tactical decision-making could be transferred to a dedicated operator while the front-seater manages flight and immediate combat threats.

Test pilot Sergey Bogdan expanded this logic by arguing that major combat formations may require a leader capable of making decisions directly from the air rather than depending exclusively upon geographically distant ground-based command infrastructure.

“Especially during a major operation, it is essential to have a leader in the group who can make decisions directly in the air,” Bogdan said, describing a command function extending beyond traditional instructor or weapons-system-operator duties.

The concept addresses communications resilience because distant ground headquarters can potentially lose radio connectivity, whereas an airborne commander embedded within the formation shares a more immediate tactical picture and remains physically closer to participating fighters and unmanned systems.

Such an arrangement could create a decentralised command architecture in which tactical formations retain greater decision-making capacity when communications with higher headquarters are degraded, although the resilience and security of the required datalinks remain publicly unproven.

For Russian airpower, therefore, the Su-57D’s strategic significance lies not simply in adding another crew member, but in testing whether tactical command authority can migrate forward into a stealth-oriented combat platform operating inside a contested information environment.

 

S-70 Okhotnik Becomes Central to Russia’s Manned-Unmanned Teaming Strategy

The S-70 Okhotnik is the only unmanned aircraft specifically identified by Strelets when discussing the Su-57D’s command mission, making the large unmanned combat aircraft the clearest reference point for Russia’s evolving manned-unmanned teaming architecture.

Managing an Okhotnik-class system from another combat aircraft could theoretically allow unmanned platforms to operate as forward sensors, weapons carriers or distributed tactical assets while the crewed fighter remains responsible for higher-level command decisions and mission priorities.

The operational mechanism matters because commanding sophisticated unmanned aircraft involves more than steering them remotely, requiring sensor management, mission replanning, threat interpretation, communications supervision and potentially weapons coordination across a rapidly changing tactical battlespace.

Allocating those responsibilities to a rear operator could therefore reduce the cognitive burden on the Su-57 pilot, particularly during missions where air-to-air threats, surface-based air defences and multiple unmanned assets must be monitored simultaneously.

Strelets additionally referenced grouped and swarming systems, suggesting that Sukhoi is examining a command model extending beyond one fighter controlling one drone toward formations where a human crew supervises increasingly autonomous unmanned elements operating collectively.

Such a model would depend heavily upon automation because manually controlling numerous unmanned aircraft from a fighter cockpit would quickly become impractical, making autonomous navigation, task allocation and AI-supported decision tools essential components of any scalable swarm architecture.

This is where the Su-57D’s second cockpit and combat-AI programme converge, because artificial intelligence could potentially filter information, prioritise threats and recommend actions while the rear operator retains human authority over broader tactical decisions.

However, no specific swarm size, operational unmanned formation or demonstrated Su-57D-to-Okhotnik command event has been confirmed, meaning Russia’s public description currently defines developmental direction rather than an established operational capability available to frontline units.

The difference is consequential because effective manned-unmanned teaming requires secure datalinks, resilient communications, sophisticated mission software and reliable autonomous behaviour, all of which must function under electronic warfare and hostile counter-air pressure.

The Su-57D should consequently be viewed as an experimental command architecture whose importance rests on what Russia is attempting to integrate, while its actual battlespace impact will depend upon whether those interconnected technologies mature beyond flight-test demonstrations.

Combat AI Could Transform the Su-57D Into a Flying Battle Manager

Russian industry plans to use the two-seat aircraft to test combat artificial intelligence currently under development, potentially giving the Su-57D a second role as an airborne laboratory for human-machine decision-making in high-intensity tactical aviation.

Combat AI could become particularly relevant when the rear operator must supervise multiple unmanned systems because automation can potentially process sensor information, classify threats, manage routine tasks and reduce the amount of raw data requiring direct human attention.

This represents a military-technical requirement rather than simply a software enhancement, since increasingly networked air operations generate volumes of sensor, communications and targeting information that can exceed the processing capacity of individual crew members during compressed combat timelines.

AI assistance could theoretically allow the Su-57D crew to concentrate on mission-level decisions while automated systems handle lower-level information management, creating the command capacity necessary to coordinate distributed unmanned aircraft without transforming the rear cockpit into an unmanageable control station.

The aircraft could consequently become an integration point connecting human command, autonomous behaviour and networked weapons, a combination increasingly central to concepts of collaborative combat aircraft and future distributed airpower architectures.

Yet the available information does not establish that combat-AI software is already flying aboard prototype 055, and claims concerning operational artificial intelligence must therefore remain clearly separated from the confirmed intention to use the platform for future testing.

Nor does the combat-AI programme demonstrate autonomous weapons employment, because the disclosed concept focuses on experimentation and command support rather than establishing how decision authority would be divided between algorithms and human crew members.

The Su-57D nevertheless provides a useful physical environment for such experimentation because two crew stations allow engineers to examine workload distribution, interface design and decision-support mechanisms under actual flight conditions that cannot be replicated completely by ground simulators.

Lessons from those trials could influence future Russian cockpit architecture even if the Su-57D itself remains limited in numbers, because successful command interfaces and AI-assisted mission-management technologies could theoretically migrate into subsequent combat aircraft or unmanned systems.

Its strategic value may therefore reside as much in technology maturation as operational deployment, positioning the aircraft as a developmental bridge between conventional crewed fighter operations and increasingly autonomous, distributed and network-dependent forms of air combat.

Veteran Su-57 Prototype Reveals the Programme’s Experimental Reality

The aircraft currently flying as the Su-57D is not a newly manufactured production-standard two-seater but the extensively rebuilt T-50-5R prototype, retaining blue bort number 055 and a development history stretching back to its original 2013 flight.

That provenance matters because the May 2026 maiden flight demonstrated that Sukhoi could successfully fly the modified tandem-cockpit configuration, but it did not prove that Russia has completed a production-ready two-seat structure or established a manufacturing programme.

The forward fuselage was lengthened and the spine raised to accommodate the second ejection seat and tandem canopy, while the aircraft retained the wings, tails and AL-41F1 engines associated with its earlier first-stage Su-57 configuration.

No official figures have established the weight penalty created by the second cockpit, while the longer canopy could affect low-observable performance, leaving unresolved questions concerning how a production configuration would balance crew capacity, aerodynamic efficiency and radar-signature management.

The prototype’s first flight lasted approximately 40 minutes and concentrated on conventional stability and controllability checks, including standard flight and take-off-and-landing configurations rather than demonstrating advanced unmanned-aircraft control, AI integration or expanded combat capabilities.

Bogdan reported that the two-seater’s flying qualities were practically indistinguishable from the single-seat Su-57, with stability and controllability corresponding to predicted data and onboard systems functioning normally during the initial flight evaluation.

That result is important but limited: it validates the basic aerodynamic viability of the conversion while providing no evidence regarding operational UAV command, combat networking, AI-assisted mission management, weapons employment or survivability in contested airspace.

Using a veteran prototype nevertheless offers Sukhoi a comparatively practical pathway for experimentation because an existing developmental airframe can test cockpit geometry, crew coordination and mission-system concepts without immediately requiring a completely new production-standard fuselage.

The aircraft therefore represents a technology demonstrator whose configuration should not automatically be treated as the final Su-57D standard, particularly because no confirmed production order, completed operational UAV-control station or definitive production configuration has been publicly established.

For defence planners assessing Russian capability, this distinction prevents developmental ambition from being confused with fielded combat power while still recognising that prototype testing can establish the technical and doctrinal foundations for later operational systems.

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Su-57D Signals Russia’s Longer-Term Shift Toward Distributed Air Combat

Beyond training and experimentation, the Su-57D programme signals an attempt to reorganise tactical aviation around connected formations in which fighters, unmanned aircraft and command functions operate inside a unified information-and-control environment rather than as largely independent platforms.

That model could reshape force posture because combat mass would no longer depend exclusively upon additional crewed fighters, potentially allowing unmanned aircraft to extend sensor coverage, weapons capacity and tactical reach while human decision-makers remain aboard fewer high-value command platforms.

The logistics implications are equally important because distributed manned-unmanned formations would require reliable communications infrastructure, mission-data support, software maintenance and integration between aircraft whose combat effectiveness increasingly depends upon connectivity rather than individual platform performance alone.

Training therefore remains one of the Su-57D’s two officially identified core missions, particularly for specialised flight regimes that cannot be reproduced adequately by ground simulators and for pilots transitioning into the demanding operating environment of fifth-generation tactical aviation.

Dual controls allow an instructor to intervene directly, potentially reducing conversion risk while giving aircrew experience with flight characteristics and mission regimes that simulation cannot fully reproduce, particularly when aerodynamic behaviour and human sensory response become operationally significant.

This training function may ultimately prove more immediately achievable than the aircraft’s ambitious unmanned-command role because it depends primarily upon established two-seat instructional principles rather than immature combat AI, swarm management and resilient multi-platform networking.

The programme nevertheless combines both functions within one airframe, giving Sukhoi a platform that can train pilots while simultaneously developing concepts for airborne command, unmanned teaming and future collaborative combat operations.

Commercial considerations also exist because Russian industry has presented the two-seat configuration as potentially strengthening Su-57 export prospects, although export ambitions remain distinct from verified operational requirements and should not be interpreted as evidence of foreign procurement commitments.

Strategically, the Su-57D demonstrates that Russia is exploring the same fundamental battlespace problem confronting advanced air forces worldwide: how to distribute sensors and weapons across unmanned platforms without overloading the human operators expected to command them.

Whether Su-57D becomes an operational force multiplier or remains primarily an experimental aircraft will depend upon future demonstrations, but its combination of airborne command, Okhotnik control and combat-AI testing makes prototype 055 an important indicator of Russia’s intended airpower trajectory.