Indian Army preparing for high-altitude drone warfare, orders 225 FPV drone capable of operating in Himalyas

The Indian Army has ordered 225 First-Person View (FPV) drones after a competitive evaluation and field trials that tested the systems at altitudes of up to 17,500 feet. The procurement comes as the Army accelerates its modernisation and transformation efforts, with the high-altitude testing highlighting the growing requirement for unmanned systems capable of operating in extreme battlefield conditions.

The drones were evaluated against parameters including endurance, speed, accuracy and other operational requirements, with trials conducted in terrain representative of the conditions faced by troops deployed along India's northern and western borders.

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FPV drones tested at 17,500 feet for frontline operations

The Army's procurement assumes significance because of the environments in which the systems are expected to operate. Troops deployed along the Line of Actual Control with China and the Line of Control with Pakistan regularly operate at elevations ranging from 12,000 feet to more than 18,000 feet, including in the Siachen Glacier region.

At these heights, the combination of low temperatures, thin air and difficult terrain affects both soldiers and equipment. Drones can provide an alternative for tasks that have traditionally depended on personnel, animals and helicopters, particularly for supplying isolated forward positions.

The Army has been developing a layered unmanned capability that includes small tactical formations such as Ashni platoons as well as larger Battlefield Air Support battalions. The use of drones can reduce dependence on costly and weather-sensitive helicopter sorties while allowing supplies, surveillance assets and other payloads to reach forward locations more rapidly.

Thin air creates major challenges for military drones

Operating an FPV drone at high altitude presents significant engineering challenges. At around 15,000 feet, atmospheric density can fall by roughly 40 to 50 percent compared with sea-level conditions. The reduced air density gives propellers less air to generate lift and thrust, directly affecting flight performance.

The problem can also place additional demands on the drone's propulsion system. Motors that depend on airflow for cooling can operate at higher temperatures under heavy loads and risk overheating. Manufacturers may need to use larger or higher-pitch propellers or higher-KV motors to compensate for reduced lift, although these solutions can increase power consumption.

Cold weather adds another constraint. Lithium-based batteries can lose performance in freezing conditions, leading to voltage drops and significantly shorter flight times. A battery capable of powering a drone for around six minutes at sea level could provide only two to three minutes of flight at extreme altitude under comparable conditions.

To address the problem, batteries may need to be pre-heated before launch and insulated during flight.

Mountain terrain can disrupt drone communications

The Himalayan battlefield also presents challenges beyond propulsion and battery performance. Sharp ridges and mountain peaks can obstruct radio signals between drones and their operators, potentially resulting in sudden loss of video feeds or control links.

Radio-frequency interference and other sources of electronic noise can further affect sensitive FPV receivers. These factors make communications reliability an important part of evaluating drones intended for deployment in mountainous operational areas.

Army conducts trials in Ladakh, Spiti

The Army has been working with Indian drone manufacturers in the high-altitude areas of Ladakh and Spiti in Himachal Pradesh to assess the performance of different systems under realistic conditions.

The demanding terrain provided an operational test environment for validating drone capabilities rather than relying solely on controlled trials. Particular attention was given to logistics and FPV drone categories.

The trials also enabled the Army to identify systems suitable for potential procurement while suggesting modifications and improvements to other platforms based on their performance in high-altitude conditions.

Drone warfare drives demand for indigenous systems

The expanding use of drones in conflicts such as the war in Ukraine and the Israel conflict has highlighted their role across a range of military missions. Unmanned aerial systems are increasingly being used for surveillance, logistics, precision strikes and communications.

For the Indian Army, the procurement of FPV drones comes against this wider shift in modern warfare and the need to develop systems capable of functioning across India's diverse operational environments.

The emphasis on trials in extreme terrain also reflects the Army's growing focus on field-tested indigenous drone technologies that can meet the specific demands of high-altitude warfare.

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Aerodrone Robotics to supply the systems

Aerodrone Robotics Pvt Ltd, which operates in the military unmanned aerial systems segment, will deliver the aerial systems under the order. The company has developed platforms for combat, surveillance and logistics missions and also provides operator training and technical support.

The company says its platforms are military-hardened and use software developed in-house. Such an approach allows greater control over system configuration and provides scope to modify the platforms according to specific operational requirements.

The procurement adds to the Army's expanding use of unmanned systems while reinforcing the push towards indigenous capabilities under the broader Atmanirbharta initiative.