On August 6, 2010 at 19:15 MSK (15:15 UTC), the K-114 Tula submarine of the Project 667BDRM class of the Northern Fleet successfully conducted a salvo launch of two R-29RM Sineva missiles (UPDATE 09/30/10: Ministry of Defense reported that only one of the two missiles was Sineva). The launch was conducted from a submerged submarine deployed in the Barents Sea. Missiles' warheads reached their targets at the Kura test site at Kamchatka.
Previous Sineva launch, in March 2010, was also conducted by the crew of the Tula submarine.
Comments
Actually , according to Russian MoD, only one of two launched missiles was Sineva (R-29RMU2), and the 2nd was of another model. Among others that means that K-114 carries two different models of SLBM simultaneously after the overhaul.
This is interesting. I haven't seen a report that would say that the other missile was not Sineva. Do you have a link? In any event, as far as I understand, it is essentially the same missile, so it should be possible to have a mix of them on one submarine.
http://www.mil.ru/info/1069/details/index.shtml?id=75168
I think its a trustworthy info.
Thank you. I updated the post.