Air Force Explored Unmanned Tanker Options
As the Navy advances its autonomous refueling drone program, the Air Force is evaluating designs for future unmanned tankers.
Updated on Sept. 25, 2026 in Robotics
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Should the military prioritize developing fully autonomous, unmanned aircraft for refueling missions?
The U.S. Air Force has initiated studies into unmanned refueling aircraft to potentially supplement or replace existing tankers. This follows the Navy’s recent move to authorize low-rate production of the Boeing MQ-25 Stingray, which successfully completed its first flight in early 2026.
Why it matters
Current unmanned aerial systems lack the scale to match the heavy-lift requirements of the existing tanker fleet, necessitating new designs. This exploration marks the beginning of a shift toward integrating autonomous refueling capabilities into broader military logistical operations.
The current KC-46 tanker carries over 100 tons of fuel with a range of 7,400 miles, dwarfing the MQ-25, which carries 7.5 tons of fuel with a 500-mile range. Developing a tanker capable of meeting these performance metrics remains an engineering challenge.
The players
Boeing
An aerospace manufacturer that produces the MQ-25 Stingray and the KC-46 tanker.
Merlin Labs
A startup developing automated flight systems and seeking software certification for military aircraft.
United States Air Force
The branch of the U.S. military responsible for aerial refueling and logistics operations.
United States Navy
The branch of the U.S. military that has officially moved into low-rate production of the MQ-25.
The details
The Boeing MQ-25 Stingray utilizes autonomous flight software to execute take-offs, follow pre-programmed flight paths, and complete landings. Concurrently, the Air Force is working with Merlin Labs—a company specializing in autonomous flight pilot software—to obtain certification for their system. This technology is being tested on the C-130J, where it is intended to augment human crews rather than replace them entirely during the development phase.
Timeline
Early 2026: The Navy’s MQ-25 aircraft completed its first flight.
September 2026: Air, Space & Cyber 2026 conference was held.
September 24, 2026: The Navy authorized the production of the MQ-25.
2026: Merlin Labs and the Air Force began seeking software certification.
Fiscal 2027: A proposed budget includes $13 million for advanced refueling research.
The Tech Race
The military is currently pushing to close the capability gap between high-end, heavy-lift human-piloted tankers and smaller, nascent autonomous refueling drones. The Navy’s commitment to 14 MQ-25 aircraft establishes a baseline for unmanned aerial refueling that the Air Force must now scale up to match its own long-range logistics needs.
The Air Force's current exploration of autonomous refueling remains in the study phase, with no immediate impact on existing flight operations or personnel requirements. The fiscal 2027 budget request serves as the next milestone for the public to track the trajectory of this technology.
The takeaway
The transition to unmanned aerial refueling is constrained by the significant range and capacity delta between current drones and heavy tankers. Watch the progress of Merlin Labs' autonomous flight software certification as a key indicator of when these systems might scale to heavier aircraft.
Further reading
For more on how automated systems are being integrated into military flight, visit Robotics.
Live Poll
Should the military prioritize developing fully autonomous, unmanned aircraft for refueling missions?
