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Reliance Industries has officially marked its entry into the defence sector as it announced a partnership with Britain’s Rolls-Royce. The two will jointly pursue an indigenous combat aircraft engine for India.
Why is this important: this takes Reliance beyond supplying materials or infrastructure into one of defence manufacturing’s most difficult areas: designing, developing and manufacturing engines for fighter aircraft.
Rolls-Royce, meanwhile, is one of the world’s major military propulsion companies; its engines power combat aircraft, military transports, helicopters, naval vessels and other defence platforms. Its EJ200 engine, for instance, powers the Eurofighter Typhoon.
What’s the plan: this is for India’s Advanced Medium Combat Aircraft (AMCA) programme which is the country's upcoming stealth fighter. There is also a plan to explore setting up an Aerospace Gas Turbine Complex in India.
Think of it as building an entire fighter-engine ecosystem rather than simply assembling imported engines.
That difference matters as India has successfully built fighter aircraft such as the LCA Tejas, but the engines powering them have largely come from overseas. The AMCA programme could give India a chance to reduce that dependence.
The proposed facility would cover everything from engine design and development to manufacturing, testing, production and maintenance throughout the engine's life. The companies have also left the door open to using these capabilities for civil aviation and other propulsion systems later.
Who brings what to the table: Rolls-Royce brings the engine know-how. The British company has more than a century of experience in aerospace engineering and, crucially, expertise in designing the extremely complex technologies required inside high-performance military engines.
Reliance brings Indian scale. It has large manufacturing capabilities, capital, engineering expertise and experience executing enormous industrial projects.
Why is a fighter engine a big deal: a fighter engine isn't just something that makes the aircraft fly. How much thrust it produces directly affects the jet's speed, range, payload, climbing ability and manoeuvrability.
Inside the engine, components must operate at extreme temperatures and pressures while spinning at enormous speeds. That requires expertise in areas such as advanced metallurgy, combustion, aerodynamics, cooling systems, precision manufacturing and engine controls.
Only a small group of countries has mastered advanced fighter-engine technology. India's own Kaveri programme made technological progress but did not produce an engine suitable for powering the Tejas fighter as originally intended. India has therefore continued relying on foreign engines for its frontline fighter programmes.
Take the Tejas. HAL manufactures the fighter in India, but it relies on engines supplied by America's General Electric.
