1. UAVs could be used to save lives by flying search-and-rescue (SAR) missions in the nation's large national parks.
Brigham Young University took a commercially available propeller-driven plane with a 1.2-metre wingspan, optimised for low-speed flight, and adapted it to both fly and search autonomously. Their idea is to provide SAR teams with a cheap alternative to helicopters, and one that can be used even in the perilous weather conditions that can ground helicopter-led rescue missions
2. England has a prototype stealth Unmanned Combat Aircraft System called Taranis
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