Detail Faster helicopters: More rotors, more speed   Oleh:  [s.n] Jenis: Article from Bulletin/Magazine Dalam koleksi: The Economist (http://search.proquest.com/) vol. 396 no. 8699 (Sep. 2010), page 77. Topik: Helicopters; Speed; Rotors Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: EE29.62 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel THE ability of a helicopter to hover and land almost anywhere makes it an enormously useful machine. But helicopters have their limitations, particularly when it comes to flying fast. In a recent series of test flights, a new type of chopper has begun smashing speed records. The X2 is an experimental helicopter being developed by Sikorsky, an American company, at a test-flight centre in Florida. It recently flew at more than 430kph (267mph), according to a report in Spectrum, published by the Institute of Electrical and Electronics Engineers. The present record is held by a souped-up Westland Lynx helicopter, which managed 400kph in 1986. But most helicopters can’t fly at anything like these speeds and are typically flat out at 270kph. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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