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Mensaje: <blockquote data-quote="Nicanor_Chile" data-source="post: 2291352" data-attributes="member: 12">The V-280 Valor is Bell’s submission for the U.S. Army’s Joint Multi-Role Technology Demonstrator (JMR-TD) phase, the technology demonstration precursor to Future Vertical Lift (FVL), a replacement for the service’s Sikorsky UH-60 Black Hawk and Boeing AH-64 Apache helicopters.The V-280 will have a crew of 4 (including two pilots) and be capable of transporting up to 14 troops. Its cruising speed will be 280 knots (hence the designation V-280) and its top speed will be 300 kts. It’s designed for a range of 2,100 nautical miles and an effective combat range of 500 to 800 nmi although the Army’s requirements for the demonstrator call for hot and high hover performance (at 6,000 feet and 95 F), <a href="https://www.verticalmag.com/news/v-280-valor-begins-ground-vibration-testing/">and the ability to self-deploy 2,100 nautical miles at a speed of at least 230 knots.</a>Featuring a triple-redundant flight-by-wire Flight Control System and cutting edge avionics, the first prototype of the next generation helicopter is expected to perform its first flight in the next few months. On Aug. 30, what looks like a 100 percent complete aircraft, sporting the registration <a href="http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=280BH">N280BH</a>, was spotted at <a href="https://theaviationist.com/2017/08/26/here-is-japans-first-v-22-the-first-osprey-tilt-rotor-aircraft-for-a-military-outside-of-the-u-s/">Bell Helicopter Amarillo Assembly Center</a> (where the demonstrator aircraft began ground vibration testing with a 95 percent complete helicopter back in February 2017): the Valor is probably being prepared for engine tests ahead of its maiden flight (planned for Sept. 2017).The T64-GE-419 engines and gearboxes in the nacelles are clearly visible in the interesting images in this post obtained from a short video filmed by our friend <a href="http://deepbluehorizon.blogspot.com/">Steve Douglass</a>. Interestingly, unlike the V-22’s engines, that rotate with the gearboxes, in the V-280, the gearbox is the only thing that rotates. According to <a href="http://www.ainonline.com/aviation-news/defense/2017-02-10/bell-v-280-valor-prepping-flight-test-program">Bell</a> “The output shaft is connected to the drive system through a spiral bevel gearbox that transfers power to the fixed gearbox and proprotor gearbox, which rotates on two big spherical bearings driven by a conversion actuator mechanism.” The Valor’s tilting gearbox design vastly simplifies the Osprey’s complex hydro-mechanical clockwork required for the tiltrotor action.<img src="https://theaviationist.com/wp-content/uploads/2017/08/V-280-prototype.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>

Verificación: Libertador de Argentina