The Indian Air Force (IAF) is currently assessing the possibility of arming its Sukhoi Su-30MKI fighter jets with Russian-made UPAB-1500 precision-guided glide bombs.
This potential acquisition is designed to drastically improve India's ability to conduct long-range strikes against heavily fortified, high-value enemy targets while keeping its aircraft safely away from hostile territory.
Known technically as the UPAB-1500B (or K029BE), this weapon is a massive glide bomb weighing approximately 1,525 kilograms.
Its primary tactical advantage is its stand-off deployment capability. When released from a high altitude—potentially up to 15 kilometres—the bomb deploys folding wings to glide toward a target up to 50 kilometres away.
This allows Su-30MKI pilots to launch their payload well outside the reach of dense, layered enemy air defence systems, significantly increasing the survivability of the aircraft in modern combat scenarios.
The munition is purpose-built to destroy deeply buried and shielded infrastructure. It is equipped with a massive 1,010-kilogram concrete-piercing, high-explosive warhead featuring a smart contact fuze with multiple delay modes.
This configuration makes the weapon highly effective for penetrating and wiping out hardened military installations, such as underground bunkers, reinforced command centres, airbase facilities, and vital logistical hubs.
To ensure these heavy strikes hit their mark, the bomb relies on a sophisticated internal guidance system. It utilizes a combination of inertial navigation and satellite positioning (such as the Russian GLONASS or GPS) to maintain its trajectory.
This technology allows the bomb to achieve remarkable accuracy, boasting a Circular Error Probable (CEP) of less than 10 metres.
Consequently, it can reliably strike within a very tight radius of its intended target, even in environments where electronic interference is present.
The IAF's evaluation of a weapon of this magnitude reflects a broader global military trend that prioritizes precision stand-off strikes.
Modern air forces are increasingly seeking ways to destroy protected targets without risking expensive fighter jets in highly contested airspace.
If officially inducted, the UPAB-1500 will introduce a devastating "bunker-busting" dimension to India's combat capabilities, serving as a powerful deterrent that perfectly complements the military's current inventory of cruise missiles and precision munitions.
