Chinese sci-fi blockbuster The Wandering Earth 2 has been released around the world. In this movie, there is a vertical takeoff and landing J-20 stealth fighter, and it is a two-seat version. The fuselage has a huge lift fan, and two main engine tail nozzles can be pointed downward. Some jokingly call it a hybrid of the American F35B and the Chinese J-20.

中国科幻大片《流浪地球2》已在全球上映。这部电影中有一架垂直起降的歼-20隐形战斗机,而且是双座版本。机身有一个巨大的升力风扇,以及两个可以指向下方的主发动机尾喷管。有人戏称它是美国F35B和中国J-20的混合体。
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To be honest, the development of a J-20 vertical take-off and landing version is almost impossible, because the basic J-20 design has been finalised for years, and even the latest variant of the J-20B only has a modified canopy and rear fuselage, which is unlikely to accommodate the huge lifting fan.

说实话,研制歼-20垂直起降型几乎是不可能的,因为歼-20的基本设计已经定型多年,即使是歼-20b的最新改型,也只是改装了座舱盖和后机身,不太可能容纳巨大的升力风扇。

In addition, the U.S. F-35 has a vertical takeoff and landing version because the U.S. Marine Corps is limited to amphibious assault ships and cannot use conventional takeoff and landing carrier-based fighters. In China, where the military divide is not as deep as it is in the United States, the Chinese can combine aircraft carriers with amphibious landing forces so that conventional fighter jets can serve the Marines directly.

此外,由于美国海军陆战队仅限于两栖攻击舰,不能使用常规起降的舰载战斗机,所以美国F-35有垂直起降型。在中国,军种的分歧不像在美国那么深,中国人可以将航空母舰与两栖登陆部队结合起来,这样常规战斗机就可以直接为海军陆战队服务。

In fact, the F35B is equipped with a lift fan that severely affects the amount of fuel and ammunition it can carry inside, which is not a good choice from a purely military perspective. In addition, the world's successful VTOL fighters are basically single engine layouts, which include the French Mirage 3 variant, the British Harrier, the Soviet Yak-38 and Yak-141, and the F35.

事实上,F35B装备的升力风扇严重影响了其内部所能携带的燃料和弹药量,从纯粹的军事角度来看,这并不是一个好的选择。此外,世界上成功的垂直起降战斗机基本都是单发布局,包括法国的幻影3改型、英国的鹞式、苏联的雅克-38和雅克-141,以及F35。

Finally, after the trailer for The Wandering Earth 2 aired, viewers pointed out that the lift fan hatch on the J-20 was closed too early. The crew took this seriously enough that they quickly changed the animation in the full film to correct the mistake. This shows that the Wandering Earth 2 crew have a wonderful attitude about their work. I strongly encourage you to watch this film in cinemas.

最后,在《流浪地球2》的预告片播出后,观众指出歼-20上的升力风扇舱口关闭得太早。摄制组非常重视这个问题,他们迅速修改了整部电影中的动画来纠正这个错误。这表明《流浪地球2》剧组对他们的工作态度非常好。我强烈建议你去电影院看这部电影。