The Borei (or, alt. Borey) class submarine is an SSBN. It is specifically designed to carry the new Bulava ICBM. This a new class of boomer, and the lead ship, Yuriy Dolgorukiy, was delayed due to a variety of reasons. She was, however, the first boomer to be launched in seventeen years since the end of the Soviet era; in fact, it was the first Russian (rather than Soviet) vessel. Also of interest is that this is the first SSBN designed with a pump-jet system as it’s primary propulsion.
Two other boats of this class are under construction: Aleksandr Nevskiy and Vladimir Monomakh. Svyatitel Nikolay was laid down on 22 December 2009, the anniversary of the establishment of the Sevmash Shipyard.
There have been significant problems with the Bulava ICBM, some suggesting that, of the 12 test-fired, only 1 was fully successful. However, this also shows the resolves of the Russian Government, and it’s Navy, to both modernize their SSBN fleet, and the ICBM’s they will carry. In not too many years, the USN’s Tridents will be retired. Perhaps our own Navy might hurry along the process of designing and building their replacements.
More here: 4th Borei-Class Boat