Proton-K
Rocket
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The Proton-K, also designated Proton 8K82K after its GRAU index or SL-12 after its model number, 8K82K, was a Russian, previously Soviet, carrier rocket derived from the earlier Proton. It was built by Khrunichev, and launched from sites 81 and... Wikipedia
Failure(s): 24
First flight: 10 March 1967
Last flight: 30 March 2012
Launch sites: Baikonur Sites 81 & 200
Mass: 19,760 kg (43,560 lb); Record: 22,776 kg (50,212 lb) with Zvezda
Stages: 3 or 4
Success(es): 275 (89%)