Sintra escreveu:jacquessantiago escreveu:Se nesta altura do campeonato os japoneses tem a intencao de desenvolver aeronaves stealth (e os russos e parece que os chineses tb), isto quer dizer que nao ha uma contra-tecnologia efetiva no horizonte.Japan to Design Stealth Jet
Agence France-Presse | Jul 25, 2007
http://www.defencetalk.com/news/publish ... 012794.php
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Japan’s defense ministry hopes to make a prototype of a next-generation stealth plane, the first new fighter jet designed by the officially pacifist country in 30 years, a report said July 24.
The ministry will include funds to develop the manned prototype in its budgetary request for the fiscal year from April 2008, the Yomiuri Shimbun daily cited anonymous defense ministry officials as saying.
Japan has been officially pacifist since its defeat in World War II but has one of the world’s largest defense budgets and has gradually been expanding its military role.
The defense ministry is hoping to keep its technology up to date and also gain an edge in negotiations with the United States when it selects new fighter jets, the best-selling newspaper said.
A defense ministry spokesman denied it had made the budgetary request but said it had not ruled it out either.
"But we have been studying stealth and other capabilities," the spokesman said. "We are also working on a plan to study small aircraft. We will continue to work on these tasks.”
Japan has indicated it wants to buy F-22 Raptors, the latest U.S. Air Force jets built to evade radar detection at supersonic speeds.
U.S. law prohibits export of Raptors. But the United States flew Raptors to Japan earlier this year on their first foreign flight, showing its commitment to the two countries’ security alliance amid tensions with North Korea.
Japan and the United States already jointly design F-2 support fighters, but production is set to end in March 2012.
The Japanese government has not supported development of a domestic fighter aircraft since the F-1 support fighter jet in the 1970s.
F-15 fighter jets, which form the core of Japan’s fighter force, are being manufactured here under a license agreement with the United States.
The Yomiuri said development of Japan’s new prototype would likely cost hundreds of millions of dollars over 10 years.
The design would not include installing weapons and it is unclear whether Japan would actually produce the prototype due to the huge cost of building a full aircraft, it said.
A intenção dos Japoneses é comprar o F22...
Este "demonstrador" Japonês está para o F22 como o BAE REPLICA Britânico esteve para o JSF. Pelo menos é esta a ideia com que fiquei, um demonstrador que faria avançar a tecnologia "home grown" ao mesmo tempo que coloca pressão sobre o Congresso Norte Americano para autorizar a venda do Raptor.
Mais aqui:The newspaper hints at a dispute within the Japanese defense establishment over the project, with some arguing that a demonstration of domestic stealth technology would ease US qualms about exporting the F-22. This is now expressly forbidden by the Obey amendment, and US officials have argued that "sanitizing" the F-22 for export would be prohibitively expensive - instead, they have tried to interest Japan in the JSF.
On the other hand, the newspaper reports. some officials "argue that since domestic fighters have not been considered as a candidate for the next F-X fighter jet, the U.S. government would not be swayed by the ministry's negotiation strategy of parleying its interest in developing domestic fighter jets to win concessions from the U.S. government."
http://www.aviationweek.com/aw/blogs/de ... 6f6ceca4d7
Or, briefly, they are arguing that the Japanese stealth project is a hollow bluff unless the government is willing to pay the huge sums necessary for another domestic fighter program.
Quanto à tecnologia "Stealth" (o que quer que isto seja), ela não é uma panaceia, não é o "end all, be all", é uma melhoria tecnológica que vai ser contrariada por outras tecnologias, é a velha história do "Escudo/Espada" em que melhorias num levam a melhorias no outro e por ai fora... Ainda falta uma década para podermos ver esquadrões de F35 activos, em dez, quinze anos a tecnologia avança imenso...
E de qualquer forma, se a tecnologia "Stealth" fosse assim TÃO invisível não existiriam bocados de F117 expostos num museu de Belgrado, ou existiriam?
Abraços
ps- Acho que só vamos ter uma real resposta a esta nossa conversa daqui a uns dez anos
Concordo.
Daqui a 10-20 anos a tecnologia stealth tera avançado tb, haverá novos projetos e possivelmente novas tecnologias serão incorporadas.
Acrescentaria que os avanços tecnologicos incremetais são muito importantes e ocorrem em todas as áreas: sensores, armas, aerodinâmica, estrutura, aviônicos, propulsão, guerra eletronica, etc. Provavelmente não na mesma velocidade.
[]´s
Jacques
