[据瑞士《国际航空快报》1979年11月6日和美国《航空周刊》1979年10月29日报道]:航天飞机最初37次飞行的有效载荷已排满,时间从1981年航天飞机正式投入使用至1984年6月。有效载荷的数量为47个,它们分别属于14个政府、商业和外国用户。其中美国航宇局的有效载荷预计占32％,国防部的占15％,其它用户约占53％。1984年6月之前工作型航天飞机的发射日期及其有效载荷的名称简述如下: [According to the Swiss International Air Cargo Express November 6, 1979 and the U.S. Air Weekly reported on October 29, 1979]: The payload of the first 37 flights of the space shuttle was full and the space shuttle was officially put into operation in 1981 Use until June 1984. The number of payloads is 47, belonging to 14 government, commercial and foreign users respectively. Among them, NASA’s payload is estimated to be 32%, Department of Defense 15%, and other users about 53%. The date of launching of the working space shuttle before June 1984 and the names of its payloads are summarized as follows: