Kosmos 1175Rocket launchby RussiaLaunch time18 Apr 198017:31 UTCpartial failureBlok L stage failed to ignite due to stuck engine valve.MissionRocketPayloadsRocket MolniyaMlaunched from Plesetsk Cosmodrome, Pad 41/1RussiaPayloadsNamePurposeMassCommentKosmos 1175 (Molniya 3-26L)---