Opinion How Purchasing Su-57 Fighter Jet Would Undermine India’s Long-Term AMCA and Defence Aerospace Goals

How Purchasing Su-57 Fighter Jet Would Undermine India’s Long-Term AMCA and Defence Aerospace Goals


The possibility of Pakistan acquiring the Chinese-made J-31 (also known as FC-31) stealth fighter has sparked discussions in India about countering the move by swiftly purchasing Russia’s Su-57.

While this might seem like a simple way to maintain parity in the skies, such a decision could trap the Indian Air Force (IAF) in an expensive and restrictive path.

India is currently reshaping its entire aviation industry around the indigenous Advanced Medium Combat Aircraft (AMCA) programme, aiming for a prototype rollout by 2026-2027 through a newly adopted private-sector-led model.

The core issue is not whether the Russian jet is a capable machine, but rather that it contradicts India’s long-term military strategy, industrial ambitions, and the need to excel in modern, sensor-driven stealth warfare.

The primary drawback of the Su-57 lies in its stealth capabilities. Russian engineers adopted a hybrid design approach, favouring aerodynamic performance and speed over strict radar invisibility.

Consequently, the aircraft features air intakes and a general shape that do not minimise its frontal radar cross-section as effectively as jets dedicated entirely to stealth, such as the F-35 or the Chinese J-31.

In modern aerial combat where missiles are fired beyond visual range, being detected first is a fatal disadvantage.

Because it is not fully optimised for low observability, the Russian fighter risks being spotted and targeted earlier than its competitors.

Propulsion presents another major hurdle.

The current fleet of Su-57s largely operates on older, interim engines developed from the AL-41 family, as the advanced "Izdeliye 30" powerplants are still experiencing prolonged development and integration phases.

Using older engines significantly diminishes the aircraft's efficiency during supersonic flight without afterburners (supercruise), increases fuel consumption, and raises the thermal signature.

In combat, a hotter engine exhaust makes the aircraft much more visible to modern Infrared Search and Track (IRST) sensors, directly threatening the fighter's ability to survive in highly defended airspace.

Furthermore, acquiring the Su-57 carries severe strategic supply chain risks.

Russia’s defence manufacturing sector is heavily strained and prioritising its own domestic requirements, which has already caused delays in various military deliveries to India.

Maintaining a fifth-generation fighter fleet is a decades-long commitment that requires a steady flow of spare parts, engine overhauls, and continuous software updates.

Relying on foreign supply lines—especially those vulnerable to international sanctions and component shortages—could critically reduce the operational readiness of the aircraft. Additionally, dependence on foreign microelectronics introduces a permanent vulnerability into India's mission systems.

However, the most significant danger of buying the Su-57 is the damage it would inflict on India's own aerospace industry.

The indigenous AMCA programme is being driven by a Special Purpose Vehicle (SPV) that brings in major private companies—with industry leaders like Tata Advanced Systems and Larsen & Toubro expected to play pivotal roles—to build a self-reliant defence ecosystem.

Spending an estimated $10 to $15 billion on importing Russian jets would siphon crucial funds, engineering talent, and testing infrastructure away from the AMCA at a vital stage.

The SPV model aims to speed up development by sharing risks and resources, and diverting focus to a foreign jet would severely delay India's journey toward becoming a sovereign designer and builder of advanced combat aircraft.

Owning the underlying software is also crucial for modern air power.

Today’s combat jets rely heavily on complex code and digital mission systems. Buying a foreign aircraft means accepting a "black-box" system where the IAF would remain a mere end-user, dependent on another country's permission to upgrade sensors or integrate new weapons.

The AMCA, conversely, grants India total ownership of the source code. This absolute control will allow the quick addition of homegrown weapons—like the Astra series of air-to-air missiles—and other long-range munitions without needing external clearance, ensuring the IAF remains adaptable against emerging threats.

The high cost of maintaining a stealth fighter fleet further weakens the argument for the Su-57.

Operating low-observable aircraft requires intensive upkeep, specialized climate-controlled hangars, and frequent repairs to delicate radar-absorbing coatings.

The IAF has previously faced challenges maintaining high availability rates for its large, non-stealth Su-30MKI fleet despite producing parts locally.

Importing an even more maintenance-heavy aircraft without a solid, homegrown support network could result in a "white elephant"—a tremendously expensive asset that looks powerful on paper but is rarely ready to fly when needed.

While the potential arrival of the Chinese J-31 in Pakistan undeniably alters the regional security environment, rushing to buy a compromised and logistically risky Russian fighter is not the ideal solution.

A smarter and more sustainable strategy is already in motion: utilising the upcoming Tejas Mk2 and the highly capable Rafale fleet as a high-tech bridge to counter immediate threats.

By doing so, India can preserve its immediate defensive strength while concentrating its wealth and resources entirely on the AMCA programme to secure total aerospace independence in the future.
 
Wow an army personnel giving his opinion on requirements of airforce. Next time we will see Retired Air force personnel commenting on which type of guns or artillery should Indian Army buy.. 😂😜
 
India should purchase Customised Su-57MKI with AL51 (176KN Thrust) Licence Production & ToT (Russian Su-57M1 Derivative with No Restrictions for Modification) India Should buy & Negotiate it as Semi-Stealth 4.9 Gen to Supplement Su-30MKI category. It will Secure Stealthier Heavy MTOW to Handle Future Brahmos Class Missiles And Weapons (AMCA is Medium MTOW). Su-57 can be Purchased to Replenish Squadron Numbers and Diversify IAF Capabilities like Rafale Deal. For Lighter 5th Gen tasks Mini-AMCA (Single Engine) would be best for Efficiency and Eventual Exports.
 
This type of mentality has depleted our squadron strength in IAF, first we must increase our squadron strength in whatever way possible then comes indigenous production or whatever.
 
AMCA will not be available to IAF till 2032 at least despite best efforts by SPV instituted for the purpose. Engine dependency on GE will cause delays for sure as for Tejas Mk1 currently. Additional Rafales will not be available any time soon and hence it makes sense to urgently procure 40 Su57 to not just maintain the minimum fighter squadron strength but more than that to ensure credible deterrence. Money should not come in the way even if that means comprising on road and other infra projects.
 
It's not Su57 that gonna screw AMCA, it's the lethargy and lacklusture attitude which might kill AMCA.
Su57, despite not a very high on stealth, is a quasi stealth fighter jet and has long range BVR missile capability, only thing which goes against it is the production capacity of Russia (and maybe the non readiness of AL51). But its still capable for long range standoff strikes.
True stealth, till AMCA is ready, we have to rely on Ghatak UCAV. That's why I am slightly disappointed with orders of only 60, we need to have that in large numbers of 300 or above.

Rafale, though capable is massively expensive. It's EW Spectra is brilliant and it's weapon carrying ability with likes of Meteor which has amazing NEZ gives it powerful edge. Hence, if we get the ICD from Dassault, it will allow us to integrate Astra BVR's instead of buying more and more Meteors which too is damn costly.

God, I wish how much time we lost just on discussions. We simply can't afford any time time. Orders placed today won't arrive before 2030s, the less I talk about F404 the better, that's the biggest reason why we're still in negotiations with Dassault.
 

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