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<blockquote data-quote="JT8D" data-source="post: 1288635">Vea esto mi amigo:The Hiller HJ-1 Hornet was an early attempt to build a jet-powered helicopter using ramjets. Before that there had been experiments with the <a href="http://en.wikipedia.org/wiki/XH-26_Jet_Jeep">XH-26 Jet Jeep</a> tip rotor pulse jets. The HJ-1 ramjet tipped rotor propels the rotor and the aircraft. Unlike a conventional helicopter, this mechanically simple design avoids the need for a tail rotor.Unfortunately, the tip speeds on helicopter rotor blades are subsonic, and ramjets are inefficient at subsonic speeds due to low compression ratio of the inlets<a href="http://en.wikipedia.org/wiki/Hiller_YH-32_Hornet">http://en.wikipedia.org/wiki/Hiller_YH-32_Hornet</a>Saludos,JT</blockquote>

[QUOTE="JT8D, post: 1288635"] Vea esto mi amigo: [SIZE=13px][FONT=sans-serif][COLOR=#000000]The Hiller HJ-1 Hornet was an early attempt to build a jet-powered helicopter using ramjets. Before that there had been experiments with the [URL='http://en.wikipedia.org/wiki/XH-26_Jet_Jeep'][COLOR=#0b0080]XH-26 Jet Jeep[/COLOR][/URL] tip rotor pulse jets. The HJ-1 ramjet tipped rotor propels the rotor and the aircraft. Unlike a conventional helicopter, this mechanically simple design avoids the need for a tail rotor.[/COLOR][/FONT][/SIZE] [SIZE=13px][FONT=sans-serif][COLOR=#000000][B]Unfortunately, the tip speeds on helicopter rotor blades are subsonic, and ramjets are inefficient at subsonic speeds due to low compression ratio of the inlets[/B][/COLOR][/FONT][/SIZE] [url]http://en.wikipedia.org/wiki/Hiller_YH-32_Hornet[/url] Saludos, JT [/QUOTE]

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Guerra desarrollada entre Argentina y el Reino Unido en 1982