Moderadores: Lepanto, poliorcetes, Edu, Orel
Meteco escribió:Si yo fuera presidente de algún país y va el ministro de defensa a decirme que hay que comprar aviones de combate, vamos a ver lo que pasaría y de paso tal vez demostrar que el F-35 es un éxito y un fracaso, las dos cosas a la vez.
Como soy presidente de un país que no es de los más grandes de Europa, pero sí que soy importante y moderno, probablemente no compraré EFA ni compraré F-16. Como soy occidental, no compraré aviones rusos. El Superhornet es una opción, el F-22 no me lo venden. El Gripen parece que los compran los que quieren pero no pueden y el Rafale... es francés.
Me queda por tanto elegir entre Superhornet, EFA y F-35.
El F-35 es el más nuevo y lo está comprando todo el mundo. Sí, claro, porque estaban en el proyecto y además en plan mariachis, así que si no compran F-35 además de no tener un buen avión, harían el ridículo más espantoso y probablemente los políticos respectivos serían corridos a gorrazos.
Así que me uniré probablemente al club del F-35. Mientras, los EEUU y fundamentalmente LM siguen haciendo caja y más caja, y la seguirán haciendo por muchos años porque hay que acudir a ellos hasta para limpiar un arañazo. Por tanto EEUU no va a dejar de tenerlos por mucho que sea un avión que sirve muy bien para un tipo de misión y bastante peor para el resto de misiones.
por contra los norteamericanos han destinado durante los 10 últimos años más de 1.000 millones de dólares a cada uno de las dos compañías elegidas para el desarrollo de esta tecnología (GE y PW).
Atticus escribió:por contra los norteamericanos han destinado durante los 10 últimos años más de 1.000 millones de dólares a cada uno de las dos compañías elegidas para el desarrollo de esta tecnología (GE y PW).
Pues vistos los resultados, eso no solo demuestra que no saben construir aviones, sino que tampoco saben gastar el dinero.
Lepanto escribió:En los últimos veinte años, la gestión de programas del Army o la Navy, han sido desastrosos, se han vendido como la gran novedad interestelar y finalmente agua de borrajas y caro del copón, unos y otros bebían de los mismos conceptos y principios, ¿ va a ser la USAF distinta de ellos ? va a ser que no, por aplicar esos mismos razonamientos, y ahora nos muestran en pequeñas dosis sus miserias, por lo que no os quepa duda de que seguirán apareciendo, eso si, a cuentagotas, pero al final no va a ser oro todo lo que reluce. Y como dicen los toreros, que Dios reparta suerte a todos los que se queden entrampados.
La opinión del NYT:
"The Lockheed Martin F-35A is in trouble again. The U.S. Air Force is openly considering more affordable alternatives, including a clean-sheet design for a new fourth-generation fighter. A repair bottleneck, meanwhile, is choking the supply of engines, which threatens the operational fleet with groundings and restricted operations. And promised cost savings could still fall short of an ambitious target. Hundreds of orders by the Air Force for F-35As far into the future could be at risk, starting with the size of the President Joe Biden’s first budget request to Congress for fiscal 2022.
The F-35A is one of three aircraft programs singled out for special review by new Deputy Defense Secretary Kathleen Hicks ahead of the fiscal 2022 budget submission this spring. For three consecutive years, the Air Force has sent annual requests for 48 F-35As to Congress along with an “unfunded priority” for 8-14 more, which lawmakers have approved (see table). The Hicks-directed review now casts the size of the baseline request into question, as well as any Defense Department tacit support for supplementary orders chipped in by lawmakers....
...The uncertainty at home comes at a critical time for the F-35A abroad. With a limited [compared to what?] pool of customers trusted and well-funded enough to acquire the U.S. defense industry’s premier export product, the F-35A now must overcome the atmosphere created by a rising chorus of domestic criticism to win competitive contracts for about 200 aircraft orders this year by Canada, Finland and Switzerland combined. The UK, meanwhile, is poised to reveal the results of the delayed Integrated Review of Security, Defence, Development and Foreign Policy, with the F-35B program vulnerable to deep cuts.
As foreign governments decide how much to invest in F-35s, they are hearing a clamor of confused messages about the aircraft’s value from U.S. Air Force leadership. With Congress’ approval, the Pentagon’s request in 2019 to buy the first eight of 144 Boeing F-15EXs broke the F-35A’s decade-long monopoly on the Air Force’s fighter procurement. But U.S. defense officials were careful to frame that decision as a one-off, expedient solution to an airframe longevity crisis that had erupted within the Boeing F-15C/D fleet....
...As the Air Force considers options, a major driver is a single metric: operating cost. In 2018, then-Chief of Staff Gen. David Goldfein warned that the F-35A’s operating costs made the service’s plans to ramp up production impossible. Lockheed and the Joint Program Office responded by committing to lowering the F-35A’s cost per flight hour to $25,000 by 2025, a significant reduction from about $35,000 last year.
The program office has reported further progress, including signing annual sustainment contracts in fiscal 2020, which lowered the cost per flight hour by $2,000. Another initiative is replacing the much-criticized Autonomic Logistics Information System (ALIS) with the Operational Data Integrated Network (ODIN). Moving the administration of maintenance tasks to a cloud-based network can, in theory, help the Air Force save significantly on personnel costs. An army of administrators distributed to each unit could be consolidated at ODIN support hubs, but only if Air Force leaders accept such streamlined organizational changes....
...The service faces another problem with the availability of the F-35A. Deployments to the Middle East resulted in heavy usage in the region’s sand-flecked atmosphere, exposing a durability problem with the original coating applied to the high-pressure turbine blades inside the Pratt & Whitney F55 engine. “They’ve been deployed to different locations, and that extra time on the engines is causing them to fail a bit sooner,” Brown told journalists on Feb. 17.
Pratt & Whitney, however, says the overall number of unscheduled engine removals is still below the manufacturer’s expectations. A new coating for the turbine blades also is being developed to fix the durability problem, says Matthew Bromberg, president of Pratt & Whitney Military Engines.
The fleet availability problem is caused by a bottleneck at the F135 repair depot, Bromberg says. The depot has been overwhelmed by a surge of workload. Scheduled engine removals started on F135 engines for the first time this year. Unscheduled engine removals, including because of the coating problem, also are flowing into the depot. Routine, fleet-wide configuration updates have to be processed through the depot as well. The F135 employs a two-level maintenance concept, meaning interior repairs to the power modules must be handled by the depot rather than at the operational unit. Two-level maintenance is supposed to be more efficient, but only if the depot is ready to handle the workload....
...service planners continue to broaden the F-35A’s role in a future conflict. In addition to replacing the F-16’s ground-strike role with a stealthy platform, the F-35A also could be used as a forward-based, target-cueing system for missile defenses. Another mission could be as part of the Advanced Battle Management System, with the F-35 playing a role as a critical node in a distributed and automated command-and-control network. Even in low-end conflicts, supporters contend the F-35A still may be needed, as Russia has deployed S-400 air defense batteries to Syria and Libya, posing a tacit threat to non-stealthy aircraft.
An additonal argument in favor of the F-35A is a dire lack of immediately available alternatives. The Air Force has estimated that it needs to buy 72 fighters a year simply to keep pace with older aircraft being retired. Boeing delivered the first F-15EX to the service on March 10, but the fiscal 2021 budget plans support a production ramp-up to a steady state of 19 jets a year in 2024. An order for new F-16s, which was proposed by then-Air Force acquisition chief Will Roper in January, would not deliver any new F-16s until at least 2025, and only then if the service accepted the current international standard with no upgrades for range, electronic warfare or communications. A clean-sheet design poses a new set of intriguing possibilities, but the timeline raises questions...." [lots more at the URL]
El que quiera datos. En mi comentario fui optimista, igual solo 2 escuadrones de línea en 2026, solo el TES lleva 3. (Que alguien defienda que la AE puede con esto).14yellow14 escribió:Otro artículo interesante
Top British F-35 Pilot On How His Fledgling Team Is Forging Its Own Path Forward
A senior F-35 commander explains the triumphs and tribulations of operating the UK's first stealth fighter.
https://www.thedrive.com/the-war-zone/3 ... th-forward
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