1939年,第二次世界大战全面爆发。英国一面积极备战,一面也认识到仅靠自身实力远不够应对战事。于是,英国开始向美国求购战斗机。说来很难令人相信,在美国政府同意后,北美公司在100天内设计、制造、试飞完成了一种新型战斗机!该机于1940年10月首飞,飞行测试结果很是令人满意,1940年底前飞机顺利投产。新机服役编号定为P-51,英国人给它取名为“野马”。 In 1939, the outbreak of the Second World War. While preparing for war in the United Kingdom, Britain also realizes that it is far from enough to deal with war alone. As a result, Britain began to buy fighter jets from the United States. To say it hard to believe that with the consent of the U.S. government, North American companies designed, built, tested and completed a new type of fighter within 100 days! The aircraft first flew in October 1940 and the flight test results were satisfactory. By the end of 1940 the plane went into operation successfully. New aircraft service number is set to P-51, the British named it “Mustang ”.