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DARPA Pledges $6.5M for Top Small Heavy-Lift Drone Innovations

Priyadharshini S November 27, 2025 | 12:29 PM Technology

Through its Tactical Technology Office (TTO), DARPA aims to push drone technology forward with its Lift Challenge—a $6.5 million competition designed to develop small drones capable of carrying payloads four times their own weight.

Figure 1. DARPA Launches $6.5M Challenge for Small Drones with Massive Lift.

For more than a decade, drones have captured attention in both military and civilian aerospace sectors. These small, semi-autonomous aircraft can operate in swarms and access areas previously unsuitable for conventional flight, already beginning to transform both warfare and everyday applications. Figure 1 shows DARPA Launches $6.5M Challenge for Small Drones with Massive Lift.

However, small drones face significant limitations. Chief among them is that most rotorcraft cannot lift payloads heavier than themselves. While a 1:1 payload-to-weight ratio is strong compared with many conventional transport aircraft, which often carry just one-third of their own weight, even this ratio falls short for small drones.

DARPA’s goal is to radically improve this ratio, creating rotorcraft that can lift four times their own weight. To make this vision a reality, the agency has launched the Lift Challenge to accelerate innovation in drone lift capabilities.

The competition requirements are straightforward. Entrants must build a drone weighing less than 55 lb (25 kg) that complies with FAA regulations. The drone must lift a minimum payload of 110 lb (50 kg), using cast iron Olympic barbell plates provided by DARPA to ensure consistency.

While carrying the payload, the drone must maintain a steady cruising altitude of 350 ft ± 50 ft (106.7 m ± 15.2 m) above ground level. It must then navigate a designated five-nautical-mile (9 km) course. After four nautical miles, the drone must hover and safely deliver its cargo to a designated drop zone, then continue the final mile before performing a vertical landing within a 10-ft (3-m) circle.

Competition winners will be determined by successful course completion, with ties broken by speed. Drones that carry less than the 4:1 payload-to-weight ratio will receive only half of the prize.

The $6.5 million prize pool will be divided among first, second, and third place, with awards of $2.5 million, $1.5 million, and $1 million, respectively. Additional prizes of $500,000 each will recognize the Most Revolutionary Aerodynamic Design, Most Revolutionary Powertrain Design, and Most Promising Design.

“DARPA recognizes that the best solutions often come from unexpected places,” said Phillip Smith, Lift Challenge program manager. “That’s why we’ve created an open design challenge format—to encourage out-of-the-box thinking.

“The Lift Challenge isn’t just about building better drones; it’s about securing America’s leadership in UAS technology for decades to come. By setting ambitious goals and inviting broad participation, we aim to unlock new capabilities, accelerate our defense industrial base, and give the U.S. a strategic advantage.”

Source: NEW ATLAS

Cite this article:

Priyadharshini S (2025), DARPA Pledges $6.5M for Top Small Heavy-Lift Drone Innovations, AnaTechMaz, pp.298

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