NEW DELHI, — April 10, 2026 : The Indian Air Force (IAF) is assessing the potential induction of Russia’s UPAB-1500-class precision-guided glide munitions for integration with its Su-30MKI fighter aircraft fleet, as part of ongoing efforts to expand long-range stand-off strike capabilities against hardened and high-value targets.
The UPAB-1500 is a heavy, approximately 1,500 kg class guided glide bomb developed by Russia’s Tactical Missiles Corporation (KTRV). The munition is equipped with a penetrating high-explosive warhead designed to destroy reinforced concrete structures, underground bunkers, command-and-control facilities, and other critical infrastructure. Its guidance system combines inertial navigation with GLONASS satellite positioning, enabling precision engagement of fixed targets.
Platform Integration and Operational Role
The integration of the UPAB-1500 with the Su-30MKI would allow the IAF to conduct stand-off strikes from extended distances while remaining outside the engagement range of many surface-to-air missile systems. The munition can be released from high altitudes, after which deployable wings enable it to glide toward the target.
Operational range is reported to be up to approximately 50 kilometers, depending on release altitude and flight conditions. The bomb is about 5 meters in length with a diameter of roughly 400 mm. It is designed for compatibility with multiple Russian-origin combat aircraft, including the Su-30, Su-34, and Su-35 platforms.
The Su-30MKI remains the backbone of the Indian Air Force, with a fleet of over 270 aircraft manufactured under license by Hindustan Aeronautics Limited (HAL). The proposed integration aligns with broader efforts to enhance the aircraft’s air-to-ground strike capabilities.
Modernization and Existing Capabilities
The evaluation of the UPAB-1500 is part of a wider modernization framework focused on improving precision strike options. India has previously inducted Russian-origin precision-guided munitions for the Su-30MKI, including KAB-series laser-guided bombs.
In parallel, the IAF is pursuing upgrades under the Super Sukhoi program, alongside additional Russian-assisted modernization tracks for aircraft not covered in the initial phase. These upgrades are expected to enhance avionics, weapon integration, and overall combat effectiveness.
No official contract, procurement timeline, or acquisition quantity for the UPAB-1500 has been disclosed by the Indian Ministry of Defence as of April 10, 2026.
Indigenous Development Efforts
Alongside the evaluation of foreign systems, India continues to advance domestic alternatives. The Defence Research and Development Organisation (DRDO) is developing the “Gaurav” Long-Range Glide Bomb (LRGB), a 1,000 kg class precision-guided munition.
In tests conducted in April 2025, the Gaurav glide bomb was released from a Su-30MKI and demonstrated a strike range of approximately 100 kilometers using a hybrid inertial navigation and GPS guidance system. The program reflects India’s ongoing efforts to reduce reliance on imported munitions while expanding indigenous strike capabilities.
Strategic Context
The introduction of heavy glide munitions such as the UPAB-1500 would provide the IAF with additional options for engaging fortified and high-value targets at range, without requiring aircraft to enter heavily defended airspace. This approach is consistent with current operational doctrines emphasizing precision-guided, stand-off engagement capabilities.
Russia has indicated interest in exporting the UPAB-1500 family, with India identified among potential customers. The munition has been employed in operations targeting fortified positions, demonstrating its intended role against hardened structures.
The ongoing assessment reflects the IAF’s broader effort to maintain operational flexibility and strengthen its precision strike portfolio in evolving regional security environments.
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