IRNSS-1I This was a really, really fun launch. For one thing, the PSLV is a really neat launch vehicle. Four stages, one dual-engine liquid stage inside the payload fairing, an upper stage solid using a sequential stage's RCS for pointing, asymmetric roll control on the single-engine upper stage, a solid core with bolted-on liquids, and a series of bolted-on solids, some of which fire on the pad and some of which fire in-air? Simply fantastic to build, let alone fly. The destination wa
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