The UCSB Gauchos (1-2) battle the San Jose State Spartans (2-1) on Sunday, November 17, 2024 at 5:00 PM ET. Watch women's ...
On 29 December 2002, a Long March 2F launched Shenzhou 4 for a final uncrewed test of the Shenzhou spacecraft for the upcoming flight of the first crewed mission. Until then, all missions were ...
The RD-274 is a mature design, variants of which have been employed since the mid-1980s. The fuel mix of UDMH (unsymmetrical dimethylhydrazine) and N202 is not especially volatile by the standards of ...
全箭起飞质量213吨,全长40米,一、二子级直径3.35米,卫星整流罩最大直径3.35米。它的一子级和二子级使用偏二甲肼(UDMH)和四氧化二氮(N2O4)作为推进剂,上面级智能分配器的固体发动机使用HTPB作为推进剂。 全箭由箭体结构、动力系统、控制系统、遥测系统、外 ...