There is a buzz that Russia would be supplying engines for Pakistan’s Chinese-origin JF-17 Thunder fighter jets. It’s the same class of engines used by India’s MiG-29 fleet. But why do Chinese jets rely on Russian engines?
There has been a buzz in defence circles that Pakistan could secure advanced Russian jet engines for its JF-17 Thunder fleet. These rumours caused consternation in India because Moscow is a key defence partner of New Delhi, providing much of its military hardware for decades. Supplying fighter jet engines to Pakistan, therefore, could signal a potential warmth in ties. However, sources have debunked claims that Russia would be providing jet engines. But this brings up a question—why does a fighter jet co-developed by China and Pakistan still depend on Russian engines?
The JF-17 Thunder, also called the FC-1 Xiaolong in China, is manufactured in Pakistan with a collaboration between Pakistan’s Pakistan Aeronautical Complex (PAC), and China’s Chengdu Aircraft Corporation (CAC).
Conceived as an affordable upgrade for older aircraft in Pakistan’s arsenal, it combines elements from various nations, mainly to balance cost and performance.
The development of this fighter jet, which Pakistan proudly boasts of, is not accidental. It shows how deeply interdependent the global economy is. Technological gaps exist in developing countries like Pakistan, and even in China, despite its technical prowess. This is where supply chains come into play in the development of war machines like the JF-17 Thunder.
The JF-17 Thunder fighter jet has components from Russia, China, Italy, Turkey, the UK, and Pakistan.
While China plays a central role in the project, the technical prowess that the Russians bring to making machines fly remains unmatched, giving the JF-17 an edge, despite its multinational assembly.
CHINESE JET’S CONNECTION WITH INDIA’S MiG-29
At the heart of the JF-17’s propulsion system is a Russian-designed turbofan engine, specifically a modified version of a well-established powerplant that has powered numerous combat aircraft worldwide.
This engine delivers thrust in the range of 18,000 to 20,000 pounds-force, enabling the jet to achieve supersonic speeds around Mach 1.6. It’s derived from a family of engines used in iconic Russian fighters, such as those in the MiG series, and even appeared in early tests of advanced Chinese prototypes.
The MiG-29 and the JF-17 Thunder use engines from the same class, specifically the Klimov RD-33 family of turbofan engines.
The JF-17 is powered by the RD-93, a variant of the RD-33, while the MiG-29 uses the baseline RD-33 or its derivatives, depending on the model. Both are twin-shaft, afterburning turbofans designed for lightweight fighters.
The choice of this engine for the JF-17 stems from its reliability and widespread use. It is a practical option for a budget-conscious programme in countries like Pakistan, whose economy has been in tatters for decades.
Russia, through its engine manufacturers, supplies these engines, which are produced by facilities known for their expertise in high-performance aviation propulsion.
BUT WHY RUSSIAN ENGINES FOR CHINESE AIRCRAFT?
But why turn to Russia when China is rapidly advancing its own aerospace technology?
The answer lies in development timelines and engineering maturity. When the JF-17 programme kicked off in the late 1990s, China’s indigenous engine technology wasn’t yet at a stage where it could reliably power a modern fighter without significant risks.
Building jet engines is notoriously complex, involving extreme temperatures, precise materials, and intricate designs to ensure durability and efficiency. Russia, with decades of experience from the Soviet era, had already mastered these challenges. By incorporating a Russian engine, the JF-17 team could accelerate development, avoid costly delays, and leverage a proven system that’s been battle-tested in various environments.
This approach allowed Pakistan and China to focus resources on other aspects, like airframe design and avionics integration, rather than reinventing the wheel on propulsion.
GEOPOLITICS PLAYED ROLE IN CHINA USING RUSSIAN ENGINES
Geopolitics also played a major role in Pakistan and China using Russian jet engines.
Pakistan’s defence needs have long been shaped by its position between superpowers. During the Cold War, it leaned on American supplies, but shifting alliances pushed it closer to China.
Russia, meanwhile, maintained strong ties with India, supplying everything from tanks to aircraft. For the JF-17, sourcing from Russia was a bridge of sorts—Pakistan could access high-quality engines without fully alienating its Western connections, and China could benefit from the technology transfer indirectly.
But over time, things changed. With newer versions of the JF-17, Pakistan is exploring Chinese alternatives, potentially phasing out Russian components to achieve greater Chinese-reliance. Reports suggest that upcoming blocks might incorporate homegrown Chinese engines, like one that’s been in development to match or exceed the Russian model’s performance.
JF-17 IS A STUDY IN GLOBAL INTERDEPENDENCE
The JF-17 has an international flavour to it. For instance, the ejection system comes from a British firm renowned for pioneering pilot safety mechanisms.
Its radar technology hails from Italy, provided by a defence electronics specialist that’s part of major European consortia.
The jet’s targeting capabilities draw from Turkey. A pod from a Turkish company equips the JF-17 with high-resolution imaging, laser guidance, and multi-target tracking, essential for precision strikes.
