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 …

The B-17B (299M) was the first production model of the B-17 and was essentially a B-17A with a slightly larger rudder, larger flaps, a redesigned nose and 1,200 hp (890 kW) R-1820-51 …

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 …

The B-17C was the first version of this bomber which obtained Royal Air Force (British air force RAFs). The 20 copies which arrived in England at the beginning of 1941 were called Fortress I …

美国B-17飞行堡垒重型轰炸机， 第二次世界大战 初期美军的主要轰炸机， 波音公司 制造，共生产12700架。 美国B-17飞行堡垒重型轰炸机拥有13挺重机枪，是一个名副其实的“飞行堡垒”。 …

2024年4月26日 · B-17空中堡壘轟炸機 （B-17 flying fortress）是 美國 波音 在1930年代為 美國陸軍航空軍 所發展的四引擎重型轟炸機。 當時參與競爭此200架新型轟炸機合約的還有 道格拉 …

b-17b ii 轻型轰炸机，可利用机身弹舱和机翼外挂点携带炸弹。 B-17B 侦察型 于1942年进入部队服役，空军计划用21架BL取代S 6（Fokker C.VD/C.VE）陆基侦察机，用38架BS型取代S …

The first flight of the B-17B was on 27 June 1939, with deliveries of the 39 aircraft beginning in July 1939 and ending in March 1940. These aircraft were used to equip two bombardment …

The Boeing B-17B was the first production model of the famous Flying Fortress bomber. Only 39 B-17Bs were produced but by the end of World War Two over 13,000 B-17s of all versions …

The first operational aircraft, designated B-17B, was delivered 5 years later. The B-17B had a conservative wing loading making it easy to fly, and gave it a low cruising and stall speed. …