DARPA Pushes Small Drone Payload Limits in ‘Lift Challenge’
The Defense Advanced Research Projects Agency (DARPA) has launched a competition to develop small unmanned aerial systems that can exceed current payload capacity.
With trials slated for the summer of 2026, the “Lift Challenge” seeks drones weighing less than 55 pounds (25 kilograms) and capable of carrying at least 110 pounds (50 kilograms), targeting a four-to-one payload-to-weight ratio.
Commercial and military drones today operate with a ratio of one-to-one, but program manager Phillip Smith is confident that the proposed specification is achievable through “recent advances in aerodynamic design, materials science, and propulsion systems.”
He also acknowledged skepticism about the feasibility of resulting systems, but noted that proving the concept would draw interest and investment.
“This challenge can actualize the dreams that a lot of people have of using drones in both the military and civilian sectors,” Smith told Breaking Defense.
Free-for-All, $6.5M in Awards
The competition will culminate in live trials, where the aircraft must take off vertically, cruise at an altitude of 350 feet (107 meters), transport cast-iron Olympic barbell gym plates over a 4-nautical-mile (5 miles/7 kilometers) course in under 30 minutes, safely release the load, and continue for another mile before landing with precision.
Teams must operate within Federal Aviation Administration regulations, including maintaining a visual line of sight throughout the operation. DARPA said that incorporating lighter-than-air lift technologies will not be considered.
The contest is open to US citizens, permanent residents, and American companies, with foreign participants allowed subject to national security restrictions.
Registration opens in January and closes in May, with a cap of 200 qualified entrants.
A total prize pool of $6.5 million will be awarded, including $2.5 million for first place and three additional $500,000 awards for related innovations in aerodynamics, powertrain, and overall design.
“We’re setting ambitious goals and giving everyone a chance to compete to create new capabilities, accelerate our defense industrial base, and give the US a strategic advantage,” Smith said.
