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美国空军6月29日发布文件称,联合发射联盟公司(ULA)在和SpaceX公司的较量中获胜,赢得第3次空间试验计划任务(STP-3)。该合同价值1.91亿美元,属于固定价格合同,预计在2019年实施发射。此次发射任务将在2017财年获得1.8 4 9亿美元航天采购拨款。近年,美国空军将渐进性一次性运载火箭项目(EELV)推进到EELV-1A阶段,并尝试再次引入竞争机制。目前美国具备EELV发射资格的只有ULA和SpaceX两家。EELV-1A阶段预
The U.S. Air Force issued a document on June 29th saying that ULA won the third space experiment mission (STP-3) in its contest against SpaceX. The contract, worth 191 million U.S. dollars, is a fixed-price contract and is expected to launch in 2019. The launch mission will receive a total of $ 1.849 billion in FY17 aerospace procurement. In recent years, the United States Air Force has pushed the Progressive One-off Launch Vehicle Project (EELV) to the EELV-1A phase and attempted to reintroduce the competition mechanism. At present, the United States has only two ULA and SpaceX qualified EELV launchers. EELV-1A stage pre-set