F-22 Raptor vs F-35 Lightning II vs J-20 vs Su-57: The Fifth Generation Fighter Showdown

When analysts at HiWars compiled the side-by-side specifications for the world's four operational fifth-generation fighters, the numbers told an immediately striking story. The F-22 Raptor clocks a maximum speed of 2,410 km/h (Mach 2.25) with a combat radius of 759 km. The F-35 Lightning II trades raw velocity for networked lethality — Mach 1.6, 1,100 km combat radius. China's J-20 Mighty Dragon is the range champion with an extraordinary 2,000 km combat radius and Mach 2 top speed. Russia's Su-57 Felon comes in at Mach 2 as well, though its real-world deployment record raises more questions than its specification sheet answers. You can explore the full head-to-head comparison on HiWars.

These four aircraft represent the current summit of air combat technology — each a product of radically different strategic cultures, industrial capacities, and operational doctrines. Comparing them requires moving beyond raw spec sheets and into the harder questions: What threat environment was each designed to dominate? Where are they actually being flown, and under what operational constraints? And as the Indo-Pacific balance of power shifts with accelerating urgency in 2026, which of these platforms is best positioned for the decisive conflicts of the coming decade?

Stealth Performance: Not All Low-Observable Designs Are Created Equal

All four aircraft carry a "stealth=true" designation in the HiWars database, but this binary label obscures a profound hierarchy of radar cross-section (RCS) reduction that separates these platforms by an order of magnitude or more.

The F-22 Raptor remains the gold standard. Designed in the late 1980s when the Soviet threat still drove American air combat thinking, the F-22 was engineered from inception around signature management. Every external line is shaped to deflect radar energy away from threat emitters; every weapon, every pound of fuel is carried internally. The AN/APG-77 active electronically scanned array (AESA) radar is optimized not just for detection but for low-probability-of-intercept operation — it can illuminate targets while minimizing the energy that bouncing back can betray the Raptor's position. Lockheed Martin's engineers made structural tradeoffs that hurt range and payload in service of an RCS estimated by independent analysts to be in the range of 0.0001 to 0.0003 square meters — roughly equivalent to a small metal marble on adversary radar screens.

The F-35 took a different approach. Designed for a broader multi-service, multi-nation user base, its stealth priority is front-sector RCS reduction. The assumption embedded in the F-35's design philosophy is that it will rarely be in a tail-chase scenario against a peer adversary — the aircraft is meant to detect, classify, and engage threats before they achieve mutual detection. Its distributed aperture system and sensor fusion give it a situational awareness edge that some argue compensates for what it concedes in raw RCS reduction compared to the F-22. It also carries an internal bay and can operate in a low-observable configuration without external stores, though its broader fuselage shape makes it inherently less stealthy from side and rear aspects than the Raptor.

China's J-20 presents the most analytically challenging stealth picture. The aircraft's forward fuselage and canard-delta configuration suggest an engineering lineage that absorbed lessons from multiple sources — including, credibly, data exfiltrated from American stealth programs during the 1990s and 2000s. The J-20's elongated nose and carefully blended wing-body junction show genuine stealth engineering sophistication. However, the canard foreplanes — absent from the F-22 and F-35 — are inherently problematic for signature management because their leading edges and pivot mechanisms are difficult to fully suppress. Publicly available analysis suggests the J-20's forward-aspect stealth may approach F-35 levels, while its side and rear aspects are likely more reflective than either American design. The transition from WS-10 to WS-15 engines matters here too: the WS-10's nozzle design was not optimized for infrared signature reduction in the way the F-35's F135 or the F-22's F119 are.

Russia's Su-57 is the most candid fifth-generation candidate. Its design heritage is unmistakably Sukhoi — a lineage optimized for supermaneuverability and agile close-range dogfighting rather than signature discipline. The Su-57 incorporates radar-absorbing materials and has shaped engine inlets, but its twin vertical stabilizers, non-boresighted weapons bays on the fuselage flanks, and overall aerodynamic priority suggest that stealth was a secondary concern behind kinematic performance. The Su-57's AESA radar — referred to as "active phased-array" in the HiWars specification data — is a genuine capability, but independent estimates place its RCS at roughly 0.1 to 1 square meter: orders of magnitude higher than the F-22 and significantly higher than the J-20 or F-35.

Maneuverability and Kinematic Performance: A Study in Design Philosophy

The F-22 combines supercruise capability (sustained supersonic flight without afterburner) with thrust-vectoring nozzles that enable post-stall maneuvering at low speeds. Its 155.7 kN of thrust from two Pratt & Whitney F119 engines, combined with a relatively light airframe optimized for air-superiority combat, makes it arguably the most kinematically capable air-superiority fighter ever built. At beyond-visual-range ranges, its combination of speed, altitude, and sensor advantage creates a "first look, first shot, first kill" envelope that has never been tested in actual combat — but that simulation exercises consistently validate.

The J-20's kinematic profile is genuinely impressive on paper. A 2,000 km combat radius — nearly three times the F-22's 759 km — and a 5,500 km ferry range suggest a platform designed for area-denial operations across the vast maritime distances of the Indo-Pacific. With Mach 2 top speed and what Chinese state sources describe as supercruise capability with the WS-15 engine (now entering operational service in upgraded J-20A variants as of 2025), the J-20 is genuinely optimized for long-range intercept and anti-access operations rather than traditional close-in dogfighting. The canard-delta layout gives it excellent pitch authority at high angles of attack, making it more maneuverable in the subsonic regime than its size might suggest.

The Su-57, with its thrust-vectoring engines and Sukhoi's legacy supermaneuverability heritage, is almost certainly the most physically agile of the four in close-range visual combat. Its 12 hardpoints (compared to the F-22 and J-20's four internal hardpoints each) suggest that in many operational scenarios it will be flying with external stores, immediately sacrificing its stealth advantage. This is a fundamental tension in the Su-57's design: it was built to fight like a fourth-generation aircraft with fifth-generation sensors, rather than purely as a low-observable platform. In a war where adversaries can't see you coming, this matters enormously.

The F-35's Mach 1.6 top speed and single F135 engine (191 kN thrust — the most powerful fighter engine currently in service) position it as a kinematically inferior dogfighter compared to the other three. This is not a design failure; it is a deliberate tradeoff. The F-35 is not designed to win a turning fight — it is designed to ensure that turning fights never happen by achieving kill-chain dominance before visual range. Its sensor fusion, which integrates data from its AESA radar, electro-optical targeting system, distributed aperture system, and Link 16/MADL data links, arguably gives its pilot a more comprehensive tactical picture than the pilots of any other aircraft in this comparison.

Weapons Systems: Internal Carriage and the BVR Equation

Fifth-generation air combat is defined by the ability to engage targets beyond visual range while maintaining a low observable signature — and that requires internal weapons carriage. The F-22 carries AIM-120 AMRAAM and AIM-9 Sidewinder air-to-air missiles in internal bays, along with GBU-32 JDAM and SDB precision-guided munitions for ground attack, supplemented by its M61A2 Vulcan 20mm cannon for close-in engagement. The F-35's internal loadout emphasizes AIM-120C/D and GBU-31 JDAM, with its 25mm GAU-22/A cannon — and its 8,160 kg maximum payload capacity opens the possibility of significant external stores operations in permissive environments.

The J-20 reportedly carries the PL-15 long-range air-to-air missile internally — a weapon that has generated genuine concern in Western intelligence circles for its estimated 200-300+ km range. If accurate, the PL-15 gives J-20 pilots an engagement envelope that exceeds the AIM-120D's reach, potentially allowing shots at F-35 tanker and AWACS support aircraft before entering their defensive missile envelopes. The J-20's four internal hardpoints and relatively large internal bay volume support this long-range intercept mission profile.

The Su-57's 12 hardpoints represent a conventional munitions capacity unmatched in this comparison, but as noted above, using external stations transforms the aircraft from a stealth platform into a conventional one. Russia has fielded the R-37M hypersonic air-to-air missile on the Su-57 — a very long-range weapon derived from Soviet-era design philosophy that prioritizes large warhead delivery at extreme range. In the Ukraine conflict, Su-57s have reportedly launched Kh-69 subsonic cruise missiles from standoff ranges, using the aircraft's range rather than its stealth to survive — a revealing indicator of how the Russian Air Force actually assesses the platform's survivability in contested airspace.

Operational Deployment: Where Theory Meets Reality

The F-22 entered service in 2005 and has never fired its weapons in anger in an air-to-air engagement. It has been used in strike roles — launching AIM-120s against a Chinese balloon and conducting strikes in Syria — but its core mission, the suppression or destruction of enemy air power at BVR ranges, remains untested in peer competition. The U.S. Air Force currently operates approximately 180 combat-coded F-22s, a figure constrained by the politically disastrous 2009 production cap that ended the line at 187 aircraft. There is no F-22 production line to restart without enormous cost and delay, making it an irreplaceable and carefully husbanded asset.

The F-35 is the most widely deployed of the four, with over 1,000 aircraft delivered to the U.S. military and partner nations as of 2025. It has seen combat in Syria, Iraq, and Israel's operations against Iranian-linked targets — the Israeli F-35I "Adir" conducting the first operational combat missions by any fifth-generation aircraft. The program's scale and the depth of the industrial base behind it represent a strategic advantage that no competitor has yet matched.

China's J-20 entered service with the PLAAF in 2017 and is now produced at rates that concern Western analysts. Estimates suggest China is manufacturing 40-60 J-20s per year, with the PLAAF's total fleet potentially reaching 200+ aircraft by 2026 and on track toward the 1,000-aircraft figure that American defense publications have flagged as a key benchmark. The 2025 introduction of J-20A and J-20S variants (the world's first twin-seat stealth fighter, capable of manned-unmanned teaming) signals that the J-20 family is a platform in aggressive active development, not a static product.

Russia's Su-57 program has been the most troubled. Combat exposure over Ukraine has been extremely limited — Moscow clearly does not want to risk its most technologically advanced airframes in airspace defended by modern Western-supplied air defense systems. Fewer than 30 Su-57s are estimated to be in service, production rates remain slow due to sanctions and industrial constraints exacerbated by the Ukraine war, and the engine situation (the intended "Product 30" next-generation engine remains in limited production) complicates the platform's full performance realization. The Su-57's operational record, such as it is, is largely a story of strategic caution rather than tactical deployment.

The Network Dimension: Sensors, Fusion, and the Kill Chain

Perhaps the most important — and least well-quantified — dimension of fifth-generation comparison is network integration. Modern air combat is increasingly a kill-chain competition rather than a platform-to-platform duel. The F-35's MADL datalink creates a secure, low-observable communications architecture among F-35 formations; its sensor fusion makes every aircraft in a formation a node in a larger intelligence-gathering and targeting network. The F-22 has been retrofitted with MADL, but its age and production volume limit its long-term role as the backbone of networked American air power.

The J-20 is reportedly integrated into China's broader C4ISR (command, control, communications, computers, intelligence, surveillance, and reconnaissance) architecture, including the BeiDou satellite navigation system and datalinks connecting it to ground-based radar networks. The two-seat J-20S, entering service in 2025, adds an explicit command-and-control dimension, potentially enabling J-20S crews to coordinate attacks by PL-15-armed drones — a manned-unmanned teaming concept that would represent a genuine qualitative leap in PLAAF capability.

Russia's network integration for the Su-57 remains the most opaque. The aircraft's sensor suite, including its L-band radar arrays on the wing leading edges (which can detect some stealth aircraft), represents genuine engineering investment, but the integration of those sensors into a coherent real-time tactical picture — and the secure datalinks needed to share that picture with other platforms — lags significantly behind American and, increasingly, Chinese capabilities.

Looking Forward: 2026 and Beyond

The fifth-generation comparison is becoming a moving target. The United States has confirmed development of the F-47 NGAD (Next Generation Air Dominance) platform, intended to replace the F-22 in the air superiority role. China's J-35 carrier-based stealth fighter has entered service, and reports of a J-36 and J-50 program push toward sixth-generation concepts. Russia's checkmate program (Su-75) remains in early demonstrator stage, with the Ukraine conflict consuming resources that might otherwise accelerate development.

What is clear is that the F-22 and J-20 represent the apex of current-generation air superiority design. The F-22's irreplaceable advantages in stealth and sensor sophistication are balanced against its limited numbers and aging production infrastructure. The J-20's extraordinary range and accelerating production rate make it the platform most likely to define the Indo-Pacific air combat balance over the next decade. The F-35's network effects and sheer production scale make it a strategic-level asset in a way that the other three are not. And the Su-57, for all its engineering ambition, faces the brutal arithmetic of a sanctioned defense industrial base and a war that is consuming Russia's conventional military capacity at a generational scale.

For air power analysts, the fifth-generation showdown is not a question of which single aircraft "wins" — it is a question of which doctrine, which industrial base, and which network architecture can sustain decisive overmatch in the highly contested, sensor-saturated airspace that defines peer competition in 2026. On that measure, the competition is closer than either Washington or Beijing would prefer to admit.

Related Resources

• Full Side-by-Side Comparison: F-22 vs F-35 vs J-20 vs Su-57 — HiWars
• F-22 Raptor — Technical Specifications & Intelligence — HiWars
• F-35 Lightning II — Technical Specifications & Intelligence — HiWars
• J-20 Mighty Dragon — Technical Specifications & Intelligence — HiWars
• Su-57 Felon — Technical Specifications & Intelligence — HiWars