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年用俄制“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俄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 Inmarsat has signed a contract with the Salyut Design Authority to launch Inmarsat-3 with a Russian-made Proton rocket in 1995. This contract makes Inmarsat the first Western organization to launch satellites using Russian-made delivery vehicles. However, the plan is full of uncertainties. The cost of ensuring the compatibility of satellites with the means of delivery is due to the United States payload on the satellites