The U.S. Defense Advanced Research Projects Agency (Darpa) has selected Lockheed Martin to move forward with a program to build a “flying Humvee” that takes off and flies over roads planted with roadside bombs. Darpa narrowed the Transformer program to two competitors: AAI Textron and Lockheed Martin. Both companies' concepts used ducted fans, but took different approaches to the vehicle. AAI licensed slow-rotor/compound autogyro technology from Carter Aviation Technologies—the vehicle would ...


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