Lockheed Martin's Hybrid Air Vehicle can be designed as an unmanned or manned intelligence gatherer or transport vehicle. As an eye in the sky, this...
The ASAP-XP family of hybrid air systems, (including the "MAKO A" variant currently in development by the Department of Defense) represents a significant advance in...
The Piasecki PA-97 Helistat was an American experimental heavy-lift aircraft, built by Piasecki by fastening four obsolete helicopters to a framework beneath a helium blimp....