The Boeing B-17 Flying Fortress is an American four-engined heavy bomber aircraft developed in the 1930s for the United States Army Air Corps (USAAC). A fast and high-flying bomber, the B-17 dropped more bombs than any other aircraft during World War II, used primarily in the European Theater of Operations.

B-17轰炸机（英文：B-17 Bomber [1]），是20世纪30年代美国 波音公司 为 美国陆军航空队 研制的一种螺旋桨发动机轰炸机。 B-17轰炸机是世界上第一架全金属机身的4发轰炸机，采用下单翼常规气动布局，恒速螺旋桨发动机，载弹量2吨，航程2980千米，速度每小时322至402千米，机组乘员4至6人。 该机与其它轰炸机比较，具有体积大、速度快、航程远的特点 [2]。 B-17轰炸机作为第二次世界大战初期美军的主要战略轰炸机，于1937年8月以 初始型号Y1B-17交付。 1944年8 …

On June 27, 1942, horrendous weather conditions forced this early “E” model B-17 to make an emergency landing on a Greenland ice cap. The entire crew survived the 10-day ordeal by getting the aircraft’s radio into operation again and transmitting an SOS, which resulted in their rescue.

The B-17E (299O) was an extensive redesign of the previous B-17D. The most obvious change was the larger, completely new vertical stabilizer, originally developed for the Boeing 307 Stratoliner, and the addition of a tail gunner. Experience had shown the Flying Fortress was vulnerable to attack from behind.

2024年4月26日 · B-17空中堡垒轰炸机 （B-17 flying fortress）是 美国 波音 在1930年代为 美国陆军航空军 所发展的四引擎重型轰炸机。 当时参与竞争此200架新型轰炸机合约的还有 道格拉斯 和 格伦·L·马丁 两家公司。 在三家竞争者之中，波音设计的机型不但性能突出且更加的符合美国陆军航空军之期望。 然而，由于B-17的原型机在一次试飞时坠毁，波音最终并没有得到该笔合约。 不过由于陆军航空军对波音的B-17设计印象深刻，因此仍旧订购了13架B-17型轰炸机作为后续 …

The B-17 Flying Fortress is one of the most iconic USAF bombers of WWII. The B-17E was the first version of the Flying Fortress produced in large numbers, with 512 delivered. Unlike previous versions, the B-17E had larger and extended fuselage by 3m, as well as a vertical tailfin, rudder, and horizontal stabilizer added.

B-17空中堡垒轰炸机（B-17 flying fortress）是美国 波音在1930年代为美国陆军航空军所发展的四发动机重型轰炸机。 当时参与竞争此200架新型轰炸机合约的还有 道格拉斯 和 格伦·L·马丁 两家公司。

The B-17E was the first "offensive" model of the Flying Fortress family. It first flew on September 5, 1941, and in the ensuing year many hundreds were produced at Boeing, Douglas and Lockheed. Among the major changes were a longer fuselage, increased fin area, dorsal and ventral power turrets, tail gun position and increased nose armament.

2024年8月14日 · 我们的主角420号b-17e轰炸机在1941年11月7日从波音公司西雅图工厂下线，并被交付给了美国陆军航空队，此时距离日军偷袭珍珠港、太平洋战争爆发已经仅仅剩下不到一个月时间了。

The Boeing B-17 Flying Fortress and the Consolidated B-24 were the United States' two standard heavy bombers until the arrival of the Boeing B-29 Superfortress in 1944. The B-17 served in almost every theater of World War II, but it was used mostly by the US Eighth Air Force, based in the UK, to bombard German targets.