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从1903年第一架有动力的飞机安全升空,到现在已经走过了93年的历史。在整个航空发展的历程中,出现了很多著名人物。本期封三刊出了一组人物邮票,简介如下(以从左到右,从上到下为序),仅供读者参考。劳伦斯·斯普瑞(Lawrence BSperry)左栏一,1892年生于芝加哥。早年他协助父亲搞了很多航空上的新发明,如自动驾驶仪、可收放式起落架和陀螺控制的航空鱼雷。1924年,他制造的飞机以每小时348公里的速
From 1903 the first powered aircraft safely off until now has gone 93 years of history. In the course of the entire aviation development, there have been many famous people. This issue of seal three published a group of stamps, briefings are as follows (from left to right, from top to bottom), for the reader’s reference. Lawrence BSperry left column one, born in Chicago in 1892. In his early years he helped his father make a lot of new inventions in aviation, such as autopilot, retractable landing gear and gyro-controlled air torpedoes. In 1924, he made the aircraft at a speed of 348 kilometers an hour