B-17F Flying Fortress | |
---|---|
Страна | Сащ |
Роля | Тежък бомбардировач |
Първи полет | 28 July 1935 |
Построен | 12000+ |
1. Летяща крепост Боинг Б-17 is a four-engined heavy bomber developed in the 1930s for the United States Army Air Corps (USAAC). Competing against Douglas and Martin for a contract to build 200 bombers, the Boeing entry (prototype Model 299/XB-17) outperformed both competitors and exceeded the air corps’ performance specifications. Although Boeing lost the contract (to the Douglas B-18 Bolo) because the prototype crashed, the air corps ordered 13 more B-17s for further evaluation. From its introduction in 1938, the B-17 Flying Fortress evolved through numerous design advances,[ becoming the third-most produced bomber of all time, behind the four-engined B-24 and the multirole, twin-engined Ju 88.
Източник: B-17 Летяща крепост в Уикипедия
B-17F Flying Fortress | |
---|---|
Фотограф | Unknow |
Локализация | Не знам |
Снимки | 21 |
Комплекти свързани:
B-17F Flying Fortress ‘Memphis Belle’ Walk Around | |
---|---|
Фотограф | Dean Jackson |
Локализация | Не знам |
Снимки | 32 |
Намерете комплекти в иБей:
Views : 2531