The Indian Army has successfully patented a groundbreaking anti-drone shield engineered specifically to protect its armoured vehicles.
This new mechanism utilises a distinctive coaxial blade setup that spins above the tank's turret, forming an active physical shield to block airborne threats—especially explosives dropped by drones onto the heavily exposed upper sections of the tank.
The patent documents detail a protective canopy comprising two distinct layers of blades attached to a single central mast.
Driven by a dedicated motor and transmission, the top layer spins clockwise while the bottom layer moves in the opposite direction.
This counter-rotating propeller system acts to bat away, damage, or snare incoming aerial projectiles before they can make contact with the vehicle's hull.
Visual blueprints from the patent place this spinning array squarely above the turret.
By moving at high velocities, these blades forge an active defensive umbrella capable of taking down small drones, explosively formed projectiles, and loitering munitions diving from above.
The powerful air currents and direct physical strikes are engineered to shatter fragile drone parts, thereby stopping explosives from detonating on critical zones such as the engine bay, crew hatches, and turret roof.
Unlike the static steel "cope cages," slat armour, or mesh screens currently adopted by various global militaries, this dynamic approach offers a massive operational advantage.
The spinning blade umbrella allows the tank to maintain full combat mobility and unhindered turret rotation without sacrificing overhead security.
While the Indian Army has previously experimented with passive cage armour, such additions often add excessive weight and restrict overall tank performance.
The creation of this system is a direct reaction to the changing nature of modern battlefields.
Conflicts such as the ongoing Russia-Ukraine war have highlighted the lethal efficiency of top-attack drones and First Person View (FPV) kamikaze systems against heavy armour.
While conventional battle tanks boast formidable frontal plating, their top surfaces remain highly susceptible to cheap, precision aerial strikes.
Aligning with the government's Atmanirbhar Bharat initiative, this homegrown patent strengthens the country's domestic defence manufacturing capabilities.
The military envisions retrofitting this technology onto its existing fleet of T-72 and T-90 Bhishma tanks, as well as integrating it into future indigenous combat vehicles, granting them enhanced survivability in drone-heavy conflict zones.
This development perfectly complements the Army's broader modernisation efforts; in early 2025, the force actively began seeking integrated Counter-Unmanned Aircraft Systems (C-UAS) to shield its roughly 3,700 Russian-origin tanks deployed across varied terrains.
Defence analysts point out that this active blade concept offers distinct advantages over bulky passive metal cages, including significant weight reduction, unhindered visibility for the tank crew, and strong resistance against low-cost FPV drones.
Nevertheless, the system must undergo rigorous real-world testing to resolve potential issues regarding power draw, battlefield durability, maintenance of moving parts, and ensuring the blades do not block the tank's own radar and defensive sensors.
This novel mechanical shield is just one piece of India's rapidly expanding anti-drone arsenal.
It joins a wider network of advanced countermeasures recently inducted or tested by the Indian Armed Forces, including the newly inducted SAKSHAM unified counter-UAS grid, portable jammers by AXISCADES, laser-based directed energy weapons, and indigenous hard-kill systems developed by companies like Zen Technologies and Bharat Electronics Limited (BEL).
