Military Drones Present And Future: Visual TourThe Pentagon's growing fleet of unmanned aerial vehicles ranges from hand-launched machines to the Air Force's experimental X-37B space plane.
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Boeing is developing a reusable booster system demonstration vehicle called the RBS Pathfinder. So far, the experimental vehicle is only a concept, as depicted in this artist's rendering. Plans call for the RBS Pathfinder to be able to autonomously return after upper-stage separation and land on a runway near the launch site using a technique called "rocket back," which manages the booster's energy and flight path.
Image credit: Boeing
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