The Northrop Grumman X-47B is a demonstration unmanned combat aerial vehicle (UCAV) designed for aircraft carrier -based operations.

In 2013, these aircraft were used to demonstrate the first-ever carrier-based launches and recoveries by a relevant, low-observable, unmanned autonomous aircraft. In April 2015, the X-47B once again made aviation history by successfully conducting the first-ever Autonomous Aerial Refueling (AAR) of an unmanned aircraft.

The Boeing X-46 was a proposed unmanned combat air vehicle (UCAV) that was to be developed in conjunction with the United States Navy and DARPA as a naval carrier-based variant of the Boeing X-45 UCAV being developed for the U.S. Air Force.

2023年4月29日 · Popular Science declared it "the world's first autonomous warplane," and though only two X-47Bs were completed, they demonstrated through vigorous trials the fully capabilities of drones. As...

2021年2月19日 · The X-47B is an unmanned combat air system carrier (UCAS) offered by Northrop Grumman for the US Navy (USN). The X-47B is powered by a Pratt & Whitney F100-PW-220U engine and exhaust system. Credit: Alan Radecki. The X-47B is an unmanned strike fighter-sized aircraft developed by Northrop Grumman. Credit: US Navy.

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X-46A 是波音公司为美国海军研制的海军型无人作战飞机（UCAV-N）。 它将与诺斯罗普.格鲁门公司的 X-47A 争夺美国海军的这项合同。 X-46 将用来验证无人机是否能在航空母舰上进行起降，并完成监视、压制敌防空和纵深攻击任务。 X-46A 与 X-45A 很相似，大约 10.4 米长，翼展 13.4 米，可携带 1,200 千克重的武器弹药，航程要求达到 1,200 千米，续航时间要求达到 12 小时。 X-46A 是波音公司为美国海军研制的海军型无人作战飞机（UCAV-N）。