SOURCE: RAUNAK KUNDE / NEWS BEAT / IDRW.ORG
In a significant decision that has implications for the future operational capabilities of its air force, India has turned down an offer from Russia to equip its 84 “Super Sukhoi” configured Su-30MKI aircraft with the advanced AL-41F engines. These engines, which provide superior thrust and a better Mean Time Between Overhauls (MTBO) compared to the current AL-31FP engines, were proposed as part of an upgrade package for the Indian Air Force (IAF).
An official from Hindustan Aeronautics Limited (HAL), speaking to idrw.org, confirmed that the decision to stay with the AL-31FP engines was predominantly made by the IAF. Despite the AL-41F’s compatibility with the Su-30MKI, as demonstrated by the Russian Air Force’s transition to these engines on their nearly identical Su-30SM aircraft, several factors led to this choice.
HAL, in collaboration with the Gas Turbine Research Establishment (GTRE), has made significant strides in addressing early technical issues with the AL-31FP engines. Over the years, HAL has developed the capability to manufacture these engines from raw materials within India, enhancing self-reliance in engine production.
The IAF’s preference to retain the AL-31FP is also influenced by logistical concerns. The AL-41F engines, although sharing some commonalities with the AL-31FP in terms of service ground tools, would nonetheless necessitate substantial reskilling of the ground crew for maintenance and repairs. Additionally, the higher thrust of the AL-41F might alter the flight dynamics of the Su-30MKI, requiring pilot reorientation and potentially new training modules.
The decision reflects a strategic choice to avoid the additional costs and time associated with transitioning to a new engine type, especially when the existing engines have been sufficiently localized and improved.
Sticking with the AL-31FP engines means that the IAF can continue to leverage the established supply chain and maintenance ecosystem without the need for extensive overhauls. This choice, however, also means forgoing the potential performance enhancements the AL-41F could provide, in terms of both thrust and engine longevity.
The Su-30MKI, often described as the backbone of the IAF’s fighter fleet, will undergo upgrades to become the “Super Sukhoi,” but these will focus on avionics, radar systems, and weapon integration rather than a change in propulsion. This approach prioritizes operational continuity and leverages the existing infrastructure, despite missing out on what some might argue is a significant technological upgrade.
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