国际海事卫星组织已与礼炮号设计局签订了一项合同,拟在1995年用苏制质子号火箭发射国际海事卫星-3。这项合同使得国际海事卫星组织成为利用苏制运载工具发射卫星的第一个西方组织。但是,这项计划充满了不定因素。为确保卫星与运载工具的相容性而付出的代价,因卫星上有美国的有效载荷,这项计划一度要得到美国的同意,以及独联体国内许多鲜为人知的未知政治因素, Inmarsat has signed a contract with the Salyut Design Bureau to launch the Inmarsat-3 by the Soviet Proton rocket in 1995. This contract makes Inmarsat the first Western organization to use satellites to launch satellites. However, this plan is full of uncertainties. In order to ensure the compatibility of satellites and vehicles, due to the United States’ payload on satellites, the plan was once agreed by the United States and many unknown political factors in the Commonwealth of Independent States,