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Game of Drones: Pentagon seeks laser-powered bat drones

Game of Drones: Pentagon seeks laser-powered bat drones

Tired: multi-rotor copters and fixed-wing drones. Wired: flying robots that move like living animals, are crafted of next-generation materials, and draw their power not from batteries but energy beamed from nearby aircraft. On Wednesday, the the Defense Enterprise Science Initiative, or DESI, announced a competition for basic science grants to build “new paradigms for autonomous flight, with a focus on highly-maneuverable platforms and algorithms for flight control and decision making.” An accompanying Broad Agency Announcement gets more specific: basically, they’re looking for bat-like drones that can be powered with directed-energy beams. “The biological study of agile organisms such as bats and flying insects has yielded new insights into complex flight kinematics of systems with a large number of degrees of freedom, and the use of multi-functional flight surface materials,” the announcement reads. The Air Force believes that more and more naturalistic design — coupled with more powerful and smaller sensors to form a better picture of the outside world — should yield “significant improvements in maneuverability, survivability and stealth over traditional quadcopter or fixed wing designs.”


Biomimetic, or nature-imitating, designs for crawling, slinking and even swimming robots go back decades. The late 1960s brought a biologically inspired robot called Orm. But the field accelerated in the late 1990s and early 2000s, bolstered by labs at MIT, Harvard, Stanford, and Berkeley and research out of Japan and China, chinese robotic fish are nearly ten years old. The Defense Department eventually commissioned its first bio-inspired robot, a wall-climber called SpinyBot, which debuted in 2006. But getting flying machines to mimic nature is a good deal more difficult and more complicated than teaching robots to swim and crawl, which is why even the military’s smallest drones have followed conventional aerodynamic designs. One of the key barriers is power distribution. Running a motor to spin a propeller is a straightforward affair. While there are multiple examples of flexib