Sukhoi Su-30SM2 Flanker-H: Russia's $66 Million Super Flanker With Su-35 Guts
The Sukhoi Su-30SM2 (Flanker-H) is not merely an upgrade—it is Russia's $66 million attempt to bottle lightning by cramming Su-35S technology into a two-seat airframe. This 4++ generation multirole fighter, the latest evolution of the sprawling Flanker family, replaces the original AL-31FP engines with the Saturn AL-41F1S powerplants from the Su-35S, delivering 16% more thrust and enabling supercruise capability. It also integrates the N035 Irbis-E PESA radar, doubling detection range to 400 km and allowing engagement with the R-37M ultra-long-range missile. While production began entering service in the 2020s, Moscow faces a choice: build new airframes or upgrade its existing fleet of 110-114 Su-30SMs to the SM2 standard by 2027. The Su-30SM2 is the Flanker family's swan song—a multirole masterpiece that proves two heads and Su-35 guts are better than one.
1. What Is the Su-30SM2 Flanker-H? Russia's Two-Seat Su-35
- Name: Sukhoi Su-30SM2 (NATO: Flanker-H)
- Manufacturer: Sukhoi Design Bureau / Irkut Corporation
- Role: 4++ generation multirole air superiority fighter
- Crew: 2 (pilot + weapons officer)
- First Flight: 2018 (prototype Su-30SM with AL-41F1S)
- Service Entry: Early 2020s (Russian Aerospace Forces & Naval Aviation)
- Key Feature: Su-35S engines (AL-41F1S) and radar (Irbis-E) in a two-seat airframe
The Su-30SM2 is the latest and most advanced modernization of Russia's Su-30 Flanker family. Developed from the Su-30SM, the SM2 variant incorporates technology derived from the Su-35S, significantly improving its combat effectiveness in both air-to-air and air-to-ground missions. One of the most important upgrades is the installation of the Saturn AL-41F1S engines, the same powerplant used by the Su-35S. These engines provide greater thrust, improved fuel efficiency, and enhanced reliability, giving the aircraft better performance and range. The Su-30SM2 also receives upgraded avionics, radar systems, electronic warfare equipment, and weapon integration capabilities. Designed as a true multirole fighter, the aircraft can perform air superiority, strike, maritime attack, and escort missions while carrying a wide variety of modern weapons, including the R-77-1 air-to-air missile, Kh-31 anti-ship missile, and precision-guided munitions.
2. 5 Fast Facts About the Sukhoi Su-30SM2 Flanker-H
- 1. Su-35's Heart, Su-30's Soul: The SM2 is essentially an Su-30SM with the AL-41F1S engines and Irbis-E radar from the Su-35S, creating a "Franken-Flanker" that combines the two-seat versatility of the Su-30 with the raw power and sensor reach of the Su-35.
- 2. 400 km Kill Chain: The N035 Irbis-E radar can detect fighter-sized targets at up to 400 km, and the upgraded SM2 can field the R-37M missile with a 400 km range—making it a potent AWACS and tanker hunter.
- 3. Supercruise Without Afterburner: The AL-41F1S engines allow the Su-30SM2 to achieve supersonic speed without afterburner, improving fuel efficiency and combat radius while reducing infrared signature.
- 4. $66 Million Per Copy: New-build Su-30SM2s carry a unit cost of approximately $66 million, making them cheaper than the Su-35S but more expensive than legacy Su-30SM upgrades.
- 5. Upgrade or Build? Russia faces a strategic fork: either build new Su-30SM2 airframes to replace aging Su-27s and Su-24s, or upgrade all existing Su-30SMs to SM2 standard by 2027—a plan increasingly unlikely due to the Ukraine War's resource drain.
3. Sukhoi Su-30SM2 Flanker-H Performance Metrics
- Role: 4++ generation multirole fighter
- Crew: 2 (pilot + weapons officer)
- Length: 21.935 m (72.97 ft)
- Wingspan: 14.70 m (48.20 ft)
- Height: 6.36 m (20.85 ft)
- Empty Weight: ~17,700 kg (39,021 lb)
- Max Takeoff Weight: 34,500 kg (76,060 lb)
- Engines: 2 × Saturn AL-41F1S (Izdeliye 117S)
- Dry Thrust: 93.1 kN (20,900 lbf) each
- Afterburner Thrust: 147.2 kN (33,100 lbf) each
- Thrust-Vectoring: 3D nozzles (±20° deflection)
- Maximum Speed: Mach 2.0
- Supercruise: Yes (with AL-41F1S)
- Service Ceiling: 17,300 m (56,800 ft)
- Range: 3,000 km (1,620 nmi)
- Combat Radius: ~1,500 km
- Hardpoints: 12
- Maximum Payload: 8,000 kg (17,600 lb)
- Gun: 1 × GSh-30-1 30mm cannon (150 rounds)
- Radar: N035 Irbis-E (PESA)
- Radar Detection Range: 400 km (fighter-sized target)
- IRST: OLS-35 (replacing OLS-30)
- ECM: SAP-518 jamming pods
Analysis: The Su-30SM2 is a heavyweight bruiser, weighing in at 34.5 tons at max takeoff—comparable to the F-15E Strike Eagle. The AL-41F1S engines, with 147 kN of afterburning thrust each, give it a thrust-to-weight ratio exceeding 1.0, enabling impressive acceleration and sustained supercruise. The 400 km radar range, combined with the R-37M missile, gives it a "first look, first shoot" capability that rivals the Su-35S itself. However, the canards, inherited from the Su-33, add drag and reduce top speed from Mach 2 to approximately Mach 1.75 in the Su-30SM, though this is largely irrelevant in subsonic dogfights.
4. The Su-35S Transplant: AL-41F1S & Irbis-E
- AL-41F1S Engines:
- 16% more thrust than AL-31FP (147.2 kN vs 122.6 kN)
- 20% more intake air requirement, necessitating redesigned inlets
- Plasma ignition system for improved reliability
- 20° thrust-vectoring nozzles (vs 15° in original engines)
- Improved fuel efficiency, extending combat radius
- N035 Irbis-E Radar:
- PESA (Passive Electronically Scanned Array) with 900 mm antenna
- 400 km detection range for fighter-sized targets
- 30 targets tracked simultaneously, with 8 engaged at once
- Advanced ground-mapping modes for air-to-ground strikes
- Expanded Weapons Suite:
- R-37M: 400 km range, Mach 6, designed for AWACS and tanker kills
- Kh-59MK2: stealth cruise missile with 285 km range
- KAB-250: laser-guided bombs for precision strikes
- Kh-32: anti-ship cruise missile
So What? The Su-30SM2 transforms a capable but aging 4.5-generation fighter into a true 4+++ platform that can engage targets before most Western fighters even detect them. The 400 km radar plus 400 km missile combination creates an "engagement bubble" that forces enemy AWACS and tankers to operate far from the frontline, degrading their ability to support fighter operations.
5. Comparison: Su-30SM2 vs. The Flanker Family
- vs Su-30SM: The SM2 replaces the AL-31FP engines (122.6 kN) with AL-41F1S (147.2 kN), upgrades the N011M Bars radar (200-300 km) to N035 Irbis-E (400 km), and adds R-37M compatibility. Supercruise is now possible.
- vs Su-35S: The Su-30SM2 has the same engines and radar as the Su-35S, but with 2 crew, canards, and a higher empty weight. Top speed is reduced from Mach 2.25 to Mach 2.0 due to drag from canards.
- Unit Cost: Su-30SM2 (~$66 million) vs Su-30SM (~$50 million) vs Su-35S (~$80 million).
The Su-30SM2 effectively bridges the gap between the Su-30SM and the Su-35S, offering the latter's engine and radar performance in a two-seat airframe. However, the canards, while improving maneuverability, add drag and reduce top speed compared to the Su-35S.
6. Why This Matters for Global Air Power
The Su-30SM2 matters for three reasons. First, it represents Russia's "standardization" strategy. By equipping Su-30SM2s and Su-35S with common engines, radar, and weapons, Moscow reduces maintenance costs, simplifies supply chains, and improves fleet sustainability. This is particularly important as Russia struggles to mass-produce the Su-57 Felon.
Second, the Su-30SM2's 400 km engagement range poses a significant challenge to Western air forces. The ability to launch R-37M missiles at AWACS, tankers, and transport aircraft from extreme range forces NATO to operate its high-value assets further from the frontline, degrading their effectiveness.
Third, the upgrade program highlights Russia's struggle to modernize. While Moscow has ambitious plans to upgrade all existing Su-30SMs to SM2 standard by 2027, the Ukraine War has consumed resources and exposed the weakness of Russia's defense industrial base. Many analysts question whether the program can be completed on schedule—or at all.
7. Frequently Asked Questions (FAQ)
What is the Su-30SM2 Flanker-H?
The Su-30SM2 is Russia's latest and most advanced Su-30 Flanker variant, integrating AL-41F1S engines and N035 Irbis-E radar from the Su-35S into the two-seat Su-30SM airframe.
What engines power the Su-30SM2?
The Su-30SM2 is powered by two Saturn AL-41F1S afterburning turbofan engines, the same powerplants used by the Su-35S, producing 147.2 kN of thrust each with 3D thrust-vectoring.
What radar does the Su-30SM2 use?
The Su-30SM2 uses the N035 Irbis-E PESA radar, which can detect fighter-sized targets at up to 400 km.
What is the Su-30SM2's top speed?
The Su-30SM2 has a top speed of approximately Mach 2.0.
Can the Su-30SM2 carry the R-37M missile?
Yes. The Su-30SM2 can field the R-37M ultra-long-range air-to-air missile with a 400 km range.
How many Su-30SMs does Russia operate?
Russia currently operates approximately 110-114 Su-30SMs across its Air Force and Naval Aviation branches.
When did the Su-30SM2 enter service?
The Su-30SM2 began entering service with Russian Aerospace Forces and Naval Aviation in the early 2020s.
What is the cost of a Su-30SM2?
New-build Su-30SM2s carry a unit cost of approximately $66 million.
Is the Su-30SM2 stealthy?
No. The Su-30SM2 is a 4++ generation fighter that relies on supermaneuverability, radar range, and missile reach rather than stealth for survivability.
Where will the Su-30SM2 be deployed?
The first Su-30SM2 squadron is reportedly deployed to Kaliningrad, a Russian exclave surrounded by NATO members Lithuania and Poland.
8. The Future of the Flanker-H
The Su-30SM2 is likely the final evolution of the Flanker-H series. With the Su-57 Felon entering limited production and the S-75 Checkmate program progressing, Russia is gradually shifting toward next-generation designs. However, the Su-30SM2 will remain the backbone of Russian air power for decades, providing a proven, versatile platform that can dominate the skies through sheer brute force—400 km radar, 400 km missiles, and two crew members coordinating the kill. The Super Flanker may not be stealthy, but it doesn't need to be—it will see you, reach you, and destroy you before you ever know it was there.
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Sources: Sukhoi, Irkut Corporation, TASS, The National Interest, 19FortyFive, IISS Military Balance, Military Watch Magazine, Oryx
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