The Yasen class attack/guided missile submarines are going to be very capable and lethal nuclear submarines.
They are BIG boats too. Here's their specifications:
Displacement: 13,000 tons
Length: 390 ft. (120 m)
Beamt: 50 ft. (15 m)
Draft: 27.3 ft (8.4 m)</br>
Speed:
- 20 knots surfaced
- 28 knots submerged (Quiet)
- 35 knots submerged (Max)
Depth: 1,950 ft (600 m) (Test)
Crew: 90 (32 officers)
Armament:
- 32 x VLS Cells
- 08 x 650mm torpedo tubes
- 02 x 533mm torpedo tuibes
Thirty two Cruise missiles, Anti-ship missiles, or anti-submarine missile for VLS tubes
Forty torpedos, anti-ship missile, anti-submarine missiles, or mines for torpedo tubes.
The 1st one, the Severodvinsk, K-329 (shown above), was just commissioned into the Russian fleet. The 2nd will be launched this year, and the third will be launched in 2017.
The Russians designed these boats really to be a hybrid vessel that will replace both the SSN class attack submarines (like the Victor IIIs, the Akulas and Sierras) and to replace the Oscar and Oscar II Class SSGN, guided missile submarines as well. Although they will be officially classed with the SSN designation, they will be very capanble in both roles. (Note: The US Navy intends to insert a new hull extension into Virginia Class SSNs beginning in 2018. This "Payload Module" will add 28 vertical launch tubes to future Virginia Class SSNs, bringing their total VLS tube count to 40, and allow them to to become hybrid SSN/SSGN boats like the Yasen). Because of their additional vertical launch missile tubes and because of the double pressure hull and additional ballast the Russians build into their submarines, the Yasen Class vessels have that large displacement.