Moderadores: Lepanto, poliorcetes, Edu, Orel
Si pero entonces volvemos al punto 1 y es que si tiene que realizar ataques e intrusiones en profundidad necesitara los tanques externos pues las cisternas se ven a muchos pero que muchos km y delatan su presencia,si hubieran logrado el stealth con los depositos externos seria perfecto.
Es dificil saber el radio de acion real de un avion y el de este mas todavia, pero por ahí hay sitios mas o menos serios que hablan de unas 450 NM de radio, de ellas 100 en supercrucero.
Esto me viene a lo siguiente,si aplicas todos los conceptos que conocemos de diseño,disrupcion radarica/materiales ram y un cuarto concepto que es este,una superficie absorvente y una capacidad de emision infima que hace una descarga parcial de la onda de radar al entrar dentro del radio de emision del caza y del eco saliente.
No habrá F-22 en Le Bourget
Por Luis Calvo. Definitivamente el supercaza Lockheed Martin F-22 Lightning II no estará presente en la próxima edición del salón de Le Bourget (NOTA: no se llama así desde 2007, se llama Paris Air Show) aunque la organización lo hahya incluido en su listado oficial. (NOTA: Genial, otra cagada al equivocarse y llamarlo Lightning en lugar de "Raptor"... y ese "hahya"...)
Pese a que oficialmente era el Departamento de Defensa de EE.UU. quien lo mostraba, tras la decisión del presidente Obama de cerrar la cadena de montaje una vez entregados los cuatro aviones que restan, en palabras de un directivo del programa de Lockheed Martin: «Ya no tiene sentido promocionarlo.»
Publicado por Avión Revue # 17/May/2009
Orel escribió:Cosa rara, aparte de las cagadas:
¿Que ya no tiene sentido "promocionarlo"? ¡El F-22 no es exportable!, tal y como ratificó el Sr. Obama. En todo caso su asistencia a "shows" es para fardar de aparato, no para promocionarlo.
Está claro que el gobierno USA no le mola el tema de la exportacion, pero Lockheed Martin a lo mejor no piensa lo mismo.
Si en un futuro necesitaran más, o un "F-22E", sólo reabrirla les costaría una pasta gansa... si es que saldría rentable.
y si no que se lo pregunten a los pilotos de nuestros hornets o de F-15 cuando no podian blocar a los 2000 para tirar con AMRAAM.
With the recent crash, the F-22 an accident rate is about 7 per 100,000 hours. F-15s and F-16s have an accident rate of 3-4 per 100,000 flight hours. India, using mostly Russian aircraft, has an accident rate of 6-7 per 100,000 hours flown (compared to 4-5 for all NATO air forces.) The Indian rate had been over ten for many years, and it is still that high, and often higher, with other nations (including Russia and China), that use Russian aircraft designs.
The B-52 has the lowest accident rate of (less than 1.5 per 100,000 flying hours) of all American heavy bombers. The B-1s rate is 3.48. Compared to the supersonic B-1 and high-tech B-2, the B-52 is a flying truck. Thus the B-52, despite its age, was the cheapest, safest and most reliable way to deliver smart bombs.
New aircraft always have higher accident rates, which is how many hidden (from the design engineers and test pilots) flaws and technical problems. The F-22 is expected to eventually have an accident rate of 2-3 per 100,000 flight hours. The higher initial accident rate is part of a trend typical of new aircraft.
...
At the time, the F-4, which served into the 1990s, had a rate of under 5 per 100,000 hours.
...
Unmanned aircraft have a much higher rate, which is largely the result of not having a pilot on board. The RQ-1 Predator has an accident rate of about 30 per 100,000 hours. Older model UAVs had much higher rates (up to 363 for the RQ-2A). But engineers are already developing new technology to reduce this loss rate, mainly by making the UAVs themselves "smarter" and better able to operate on their own.
Wednesday May 20, 2009
Inside Analysis, Money Prompted Fighter Calls
Air Force Secretary Michael Donley said USAF had conducted "several strategic reviews inside the Air Force" as preparation for its 2010 budget deliberations, including for the F-22 decision "a broader strategic look at the total combat Air Force's capability that we have … [and] also, that is available to the [Defense] Department."
During Tuesday's House Armed Services Committee hearing on the Air Force 2010 budget proposal, chairman Rep. Ike Skelton (D-Mo.) questioned whether the service was "shortchanging itself" by ending F-22 procurement at 187 aircraft and eliminating 250 legacy fighters in 2010 among other cuts. Donley emphasized, "There is a general view in the department's leadership that the United States has enough tactical air capability, maybe even a little bit more than we need in relationship to future requirements."
He said the Air Force is "reshaping" itself and, as it does, has had "to make some difficult calls."
Skelton asked Chief of Staff Gen. Norton Schwartz the same question, to which Schwartz replied, "If there were many, many more dollars available for our Air Force, we might've made different choices." Schwartz is on record as saying that the military requirement for F-22s is 243 aircraft.
However, he told the lawmakers, "It was our judgment, difficult though they were, that discontinuing production of F-22 and C-17, for example, was a way to get us to a position where we could offer the country the best possible air forces for the resources that were allocated to us." Schwartz added, "So I personally supported both the F-22 decision and the C-17 decision, sir." (Donley, Schwartz written testimony)
Wednesday May 20, 2009
Too Few Fighters?
Rep. John McHugh (R-N.Y.) pointed out during the May 19 House Armed Services Committee hearing on USAF's 2010 budget request that the national military strategy calls for 2,250 fighters, whereas the accelerated retirement of some 250 legacy fighters would cause a shortage of about 100 fighters "below the stated requirement."
In response Gen. Norton Schwartz said it was primarily based on the need to get on a "glide path" toward a fighter force predominantly made up of fifth-generation fighters, the F-22 and F-35, and that requires accelerated production of the F-35. The decision was, he said, to "take some risk."
McHugh questioned whether the Air Force was committed to putting the legacy cut dollars into the remaining legacy fighters as a hedge against maintaining that F-35 glide path. To which Air Force Secretary Michael Donley replied that the service "has committed those resources, not just this year, but in our planning years ahead" to upgrade the remaining legacy fighters "that are going to be with us for a little bit longer." Schwartz noted, too, "Yes, we are on a path which is somewhat below the numbers which came out of the last QDR, [but it] remains to be seen what numbers come out of the ongoing QDR."
Usuarios navegando por este Foro: No hay usuarios registrados visitando el Foro y 0 invitados