42K views · 734 reactions | It's National Submarine Day? Ya don't say! Take a look back at the U-505's final dive. | Griffin Museum of Science and Industry | Facebook

K-535 Yuriy Dolgorukiy is the first Borei-class ballistic missile submarine of the Project 955 in service with the Russian Navy. Named after the founder of Moscow, Yuri Dolgoruki, the vessel was laid down on 2 November 1996 and was first planned to enter service in 2001. However, the R-39M missile that the Borei class was supposed to carry was abandoned after several failed tests, and the submarine was redesigned for the Bulava missile. The Bulava missile is smaller than the original R-39M, and