piwu0540 wrote:
俄國官方啥時說...(恕刪)
俄國沒說j-20廢，因爲它是隻母牛會升天
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旋風 wrote:
說說五代機的定義
我估計你也不知道
沒關係
我讓你去谷歌一下
我把維基百科首段貼過來
看不懂沒關係
我讓你去谷歌翻譯一下
A fifth-generation jet fighter is a jet fighter classification used around the world that encompasses the most advanced jet fighter generation. The exact characteristics of fifth-generation jet fighters are controversial and vague, with Lockheed Martin defining them as having all-aspect stealth even when armed, low-probability-of-intercept radar (LPIR), high-performance airframes, advanced avionics features, and highly integrated computer systems capable of networking with other elements within the battlespace for situation awareness.
As of March 2018, the only combat-ready fifth-generation fighters are the Lockheed Martin F-22 Raptor, which entered service with the United States Air Force in 2005; the Lockheed Martin F-35 Lightning II, which entered service in 2015 and the Chengdu J-20, which entered service with the People's Liberation Army Air Force (PLAAF) in September 2017. The Sukhoi Su-57 is slated for delivery to the Russian Air Force in 2019. The HAL AMCA, TAI TFX, Shenyang J-31, and Mitsubishi X-2 Shinshin are currently under early stages of development.
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