First Launch: 1960-10-24. Last Launch: 1967-12-22. Number: 31 . Longitude: 63.66 deg. Latitude: 45.98 deg.
First attempted launch of R-16 ICBM results in explosion on pad, killing over 100 military, engineers, and technicians, including Strategic Rocket Forces Marshal Nedelin. The first R-16 prototype was fuelled and on the pad, awaiting launch. An electrical problem developed, leading to a hold. Marshal Nedelin, commander of the Strategic Rocket Forces, ordered the engineers and technicians to fix the problem without the long delay of defuelling and refurbishing the missile. He personally had a deck chair brought out to the pad so he could watch the work first-hand. At 18:45 local time a spurious radio signal ordered the second stage of the rocket to fire while workers swarmed around the missile in its gantry. The missile exploded, killing a good part of the Soviet Union's rocket engineering and management talent. Among the dead were Nedelin, Konoptev, Grishin, Nosov, Kontsevsky, and Lev Berlin. 74 people were killed immediately, and 48 died in the ensuing weeks from burns or contact with the toxic and corrosive propellants. The total included 38 civilian engineers and 84 officers and enlisted rocket technicians. Yangel, the rocket's designer, was spared only because he had slipped into a bunker for a cigarette when the explosion occurred.