Frontline Aerospace of Broomfiled, Colo., says they've designed a flexible unmanned aerial system capable of efficiences not possible just several years ago. Only slightly bulkier than the classive Volkswagen Beetle at 21 feet long, the V-STAR™ (Vertical, Swift Tactical Aerial Resource) could serve as a mid-sized utility vehicle for the military: what the company dubbed a 'Humvee for the air." Now in the third generation of its design, the vehicle uses new materials and heat-exchanger technology to increase fuel efficiency and reduce emissions, a process called recuperation, company President and CEO Ryan Wood said Tuesday.