Detail Flights of Fancy   Oleh:  [s.n] Jenis: Article from Bulletin/Magazine Dalam koleksi: The Economist (http://search.proquest.com/) vol. 406 no. 8826 (Mar. 2013), page SS7. Topik: Gliders & Gliding; Research & Development--R&D; Thermal Energy Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: EE29.75 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel Although undeniably graceful, gliding has until now been suitable only for pleasure flights. But this is changing, as researchers enhance the capabilities of unmanned aircraft. Small drone gliders will soon be able to stay aloft for weeks, acting as communications relays, keeping a persistent eye on the ground below and even tracking marine animals thousands of kilometres across the ocean. One such glider, the hand-launched Tactical Long Endurance Unmanned Aerial System (TALEUAS), is being developed at the Naval Postgraduate School in Monterey, California. It needs an electric propeller to get airborne, but having reached a reasonable altitude TALEUAS can fly all day just by riding rising currents of warm air called thermals. When TALEUAS encounters a thermal it senses the lift and spirals around to take advantage of it. TALEUAS's endurance is limited only by the power requirements of its electronics and payload, which at the moment are battery powered. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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