Drone recharge breakthrough: lasers beam power to warplanes in mid-air
The specter of perpetually airborne military drones just took a giant leap toward reality. For the first time, the U.S. military has successfully demonstrated the ability to wirelessly recharge a drone mid-flight using laser Technology – a development that promises to dramatically extend mission times and reshape battlefield operations.
A game-changing innovation
Kraus Hamdani Aerospace (KHA) and PowerLight Technologies achieved the feat during a recent demonstration before U.S. armed forces, utilizing a high-powered laser to replenish the battery of a K1000ULE drone while it was actively in the air. Historically, the limitations of onboard fuel or battery capacity have dictated the need for drones to return to base, creating frustrating operational bottlenecks. This laser-powered charging bypasses that critical constraint, offering the potential for significantly longer, more sustained missions.
The test, conducted at the Shaw Air Force Base in South Carolina, showcased the transmission of nearly a kilowatt of power to the drone – a substantial amount – at an altitude of 5,000 feet (1,524 meters). Critically, the K1000ULE maintained continuous laser energy connectivity despite variations in drone position and fluctuating environmental conditions, effectively operating independently of ground support.
Beyond the battlefield
“Today, the best way to attack a drone is another drone – an enjambre,” stated José Fernández (Zelenza), highlighting the profound implications of this Technology. The KHA UAV demonstrated unwavering power delivery throughout the flight, eliminating the need for rescue or ground-based assistance. The Pentagon’s Office of Innovation, spearheaded by RuthAnne Darling, views this advancement as a crucial stepping stone towards “The Golden Dome,” a future system for persistent, autonomous drone operations.
Previously, similar wireless energy transfer demonstrations were limited by short ranges, small rotorcraft, and insufficient power output. Now, this breakthrough has been successfully implemented on a fixed-wing drone from the Group 2 category – a platform already actively engaged in real-world military missions. The Central Command of the U.S. Air Force has recently awarded KHA a $270 million contract to support drone operations in the Middle East, solidifying the K1000ULE’s strategic importance.
This drone – boasting a remarkably low logistical footprint, a fully modular and open architecture, and the ability to carry multiple payloads and sensors – represents the most autonomous platform of its size and weight globally. Powered entirely by electricity, it integrates long-range intelligence, surveillance, and reconnaissance capabilities, combined with extended operational endurance thanks to sophisticated artificial intelligence. It allows operators to proactively detect threats, maintain operations in contested environments, and act decisively before adversaries gain an advantage.
China's parallel pursuit
Meanwhile, China has independently achieved mid-flight drone recharging using microwave energy transmission. A mobile transmitter, coupled with an antenna array beneath a fixed-wing drone, successfully transferred power for up to 3.1 hours at a height of 15 meters (49 feet), demonstrating the growing global competition in this critical domain. However, existing microwave systems currently suffer from significant inefficiencies – operating at just 3-5% energy transmission efficiency.
The future is now
Despite these limitations, the potential is undeniable. This laser-charging innovation isn’t merely a theoretical exercise; it’s a tangible step toward a future where drones can operate indefinitely, transforming the very nature of warfare and intelligence gathering. The U.S. military's investment in this Technology signals a clear commitment to maintaining a decisive edge in the digital age.