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Mensaje: <blockquote data-quote="Oscar949" data-source="post: 2376795" data-attributes="member: 29094">Ya lo dicen a los cuatro vientos. El Item 117 cumple todos los requisitos de performance para el Su-57, y aunque te parezca sorprendente, el Su-35 es capaz de alcanzar velocidades supersonicas sin postcombustion con los motores Item 117S (a lo que se le tiende a llamar... supercrucero).El consumo de combustible no tiene relación directa con la aceleración de un avión <img src="/foros/styles/default/xenforo/smilies/biggrin.png"  class="smilie" loading="lazy" alt=":D" title="Big Grin    :D" data-shortname=":D" />, si no con su alcance. Lo que has leído, donde lo hayas leído, esta mal. El F100-PW-100 es menos potente que el AL-31F, el primero alcanza una potencia de 23,930 libras de fuerza en postcombustion y al rededor de 15000 en seco, mientras que el AL-31F produce 27600 libras en postcombustion y 16700 en seco.Russia & CIS Observer / Archive / №3 (22) August 2008 / DEFENSE / Sukhoi Su-35 Achieves Supercruise Flight /Vladimir KarnozovRussia's new Sukhoi Su-35 fighter is already showing its high-performance capabilities. This new single-seat aircraft — which combines the proven Su-27 Flanker airframe, 16% more powerful engines and a totally new set of onboard systems — is said to have reached supercruise speed, a distinct feature of fifth-generation fighters.According to Sukhoi's strategy, the introduction of its single-seat Su-35 multirole fighter as a "4++" generation of combat jets will help maintain sales of the Flanker aircraft series until an exportable fifth-generation fighter becomes available. The Su-35 also will serve as a platform for testing the onboard systems of is intended next-generation successor.The importance of this new aircraft in the Russian defense doctrine is so high that on the day after its 55-minute maiden flight in February 2008, the Su-35 prototype was inspected by the country's President Vladimir Putin and his successor Dmitry Medvedev. Sukhoi test pilot Sergei Bogdan briefed the Kremlin guests on the fighter. He recalls that the first question Vladimir Putin asked was: "Will the fifth generation fighter differ in appearance to this one?" The answer was: "Yes, it will. The fifth generation fighter is to have a totally redesigned airframe, while keeping [the Su-35's] onboard systems."Surplus powerDuring the test flight at the highest thrust regime without the use of afterburner the Su-35 achieved Mach 1.1 speed and was still acceleratingBy late June, the no. 1 flying prototype had completed 13 test missions. These were devoted to assessment of the airplane's stability and controllability, maneuvering characteristics and powerplant performance. In addition, the operation of onboard systems was closely monitored. Having received a generally positive assessment of the aircraft, Sukhoi sent it into the supersonic regime. On mission 12, the airplane accelerated to Mach 1.2 at medium altitudes (up to 6,000 meters). The next flight went as high as 11,000 meters and reached speeds of Mach 1.3.Importantly, the airplane demonstrated its ability to maintain supersonic speed at military power (the highest thrust regime without the use of afterburner). Sergei Bogdan selected his words carefully, but did state: "At medium altitudes and with military power, the airplane was making a moderate supersonic speed and still accelerating. In one of the flights, I achieved Mach 1.1, and while the aircraft could accelerate further, I had to slow down because I was approaching the end of our supersonic flight zone."Sukhoi continues assessments of the recorded parameters in order to determine whether the airplane had actually attained supercruise. Additionally, the company continues to define altitudes, weights, external and internal loads at which the Su-35 can reach its supercruise performance. A number of additional missions shall be devoted to these assessments."The power reserve is clearly seen when the Su-35 is accompanied by a Su-30," Bogdan says. "During the very first mission, I had the chance to assess how well the Su-35 responds to the throttle. When I was accelerating at combat power, the chase plane's pilot had to use afterburner from time to time. And still, he was going slower."In afterburner, the Su-35 accelerates much faster than the original Flanker. This is due to the increase in engine power at full afterburner from 12,500 to 14,500 kgf. During takeoff, the ground run is shorter, as the pilot is given much more freedom in pulling back on the stick. The onboard computer takes responsibility for preventing tail strike and other unwanted consequences of over-rotation. With smart computer control over critical regimes, the Su-35 can become airborne much faster than legacy fighters, taking full advantage of excessive power and superagility.</blockquote>

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