The Air Corps B-10 sparked a revolution in bomber design. Conceived by the Glenn L. Martin Co. in 1932, it boasted an all-metal monoplane frame, the first gun turrets, retractable landing gear, internal bomb carriage, streamlined shape, multiple engines, and high speed. It brought instant obsolescence to the Air Corps' slow, wood-and-fabric, open-cockpit, external ordnance bombers and set a standard that led directly to the highly capable B-17 and other famous World War Ⅱ bombers. The airplane was privately funded by Martin. Accepted by the Army in 1932, the prototype was heavily modified with more-powerful engines, greater wingspan, and enclosure of the cockpits. In trials, the B-10 achieved 207 mph-a speed 50 percent faster than biplane bombers and even exceeding that of any US fighter. The Air Corps placed a large order for more than 150 (32 fitted with Pratt & Whitney engines got the designation B-12). In addition, Martin struck export deals for 189 B-10 variants.
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机译：空军B-10轰炸机设计引发了一场革命。它由格伦·马丁公司（Glenn L. Martin Co.）于1932年提出，它拥有全金属单翼飞机框架，第一批炮塔，可伸缩起落架，内部炸弹架，流线型外形，多引擎和高速。它使空军军团的慢速，木质和织物式，驾驶舱，外部军械轰炸机立即过时，并设定了直接导致功能强大的B-17和其他第二次世界大战轰炸机的标准。这架飞机是由马丁私人资助的。该原型机于1932年被美国陆军接受，对它进行了重大修改，配备了功能更强大的发动机，更大的翼展和座舱外壳。在试验中，B-10的时速为207 mph，比双翼轰炸机快50％，甚至超过任何美国战斗机。空军军团订购了150多架飞机（其中32架装有普惠公司的发动机的型号为B-12）。此外，马丁还达成了189架B-10变型的出口协议。
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