The North American B-45 Tornado is an early American jet bomber designed and manufactured by aircraft company North American Aviation. It has the distinction of being the first operational jet bomber to enter service with the United States Air Force (USAF), as well as the first multiengine jet bomber to be refueled in midair. [1]

The B-45 Tornado was the first American four-engine jet bomber to fly, and the first American production jet bomber, built by North American Aviation. It was also the first jet bomber capable of carrying an atomic bomb, and the first multi-jet reconnaissance aircraft to refuel in mid-air.

The North American B-45 Tornado was designed and produced by North American Aviation as a jet-powered bomber during the early years. It was known as the first operational jet bomber that served the United States Air Force, and the first multi-engine jet bomber to be refueled in midair.

B-45轰炸机（英语：B-45 Bomber [1]，英文代号：Tornado，译文：龙卷风），是20世纪40年代末期美国研制装备的第一种喷气式轰炸机。 B-45轰炸机是美国第一种具有 空中加油 能力和核弹投放能力的喷气式飞机。 该机采用上单翼四发常规布局，安装4台 涡轮喷气发动机，最大起飞重量为51.2吨，最大飞行速度933千米/小时，最大航程3056千米。 B-45轰炸机于1947年3月17日在 爱德华兹空军基地 首飞，1948年6月30日向美国空军交付首架。 该机各型总共生产142架。

The B-45 achieved many "firsts." It was the first American four-engine jet bomber to fly; the first American production jet bomber; the first jet bomber capable of carrying an atomic bomb; and the first multi-jet reconnaissance aircraft to refuel in mid-air.

A brief look at the North American B-45 Tornado jet bomber. The B-45 was America's first 4 engine jet bomber to serve with the USAF,

2018年4月14日 · Page details technical specifications, development, and operational history of the North American B-45 Tornado Jet-Powered Bomber Aircraft including pictures. The global defense reference actively compiled since 2003

The North American B-45 Tornado was the United States Air Force's first operational jet bomber, and the first multi-jet engined bomber in the world to be refuelled in mid-air. [2] [3] The B-45 was an important part of the United States's nuclear deterrent for several years in the early 1950s, but was rapidly succeeded by the Boeing B-47 Stratojet.

The North American B-45 Tornado was a multi engine, light-weight bomber aircraft, developed by North American Aviation for the US Air Force. The first operational jet bomber to be flown by the USAF, it was also the first bomber able to perform aerial-refueling.

2025年3月12日 · While the B-45 had an awkward beginning and served for only a short period of time, it still managed to rack up a list of Air Force firsts. This included the first 4-engine jet bomber, first air-to-air refueling of a jet aircraft, and the first jet bomber to stand nuclear alert.