Delta IV (Project 667BDRM, Delfin) 7 Boats
A Delta IV class submarine |
|
| Class overview | |
|---|---|
| Name: | Delta IV class submarine |
| Builders: | Severodvinsk |
| Operators: | Soviet Union, Russian Federation |
| Preceded by: | Delta III & Typhoon class submarines |
| Succeeded by: | Borei class submarine |
| Completed: | 7 |
| Active: | 6 |
| General characteristics | |
| Propulsion: | two pressurized water-cooled reactors powering two steam turbines with two five-bladed fixed-pitched shrouded propellers. |
| Speed: |
Surfaced: 24 knots Submerged: 24 knots |
| Range: | Unlimited, except by food supplies |
Seven Delta IV class submarines were built from 1985 to 1992; all are still in service in the Russian navy today, though K-84 was crippled by a fire while undergoing overhaul in December 2011. The submarines, based at the Sayda Guba Naval Base, operate in the Northern Fleet. The Severodvinsk Shipyard built these vessels between 1981 and 1992. The last vessel was the Novomoskovsk.
The design of the Delta IV resembles that of the Delta III and constitutes a double-hulled configuration with missile silos housed in the inner hull.
The submarine has an operational diving depth of 320 meters, with a maximum depth of 400 meters. The propulsion system allows speeds of 24 knots (44 km/h) submerged using two VM-4 pressure water reactors rated at 180 MW. It features two turbines of type GT3A-365 rated at 27.5 MW. The propulsion system drives two shafts with seven-bladed fixed-pitch propellers.
In December 29, 2011, a shipyard fire broke out in the drydock where a Delta IV vessel named the Yekaterinburg was being serviced. The fire managed to spread to the submarine, all weapons were disembarked from the submarine and the nuclear reactor was shut down beforehand, it has been reported but is as of yet, unconfirmed.
Read more about this topic: Delta Class Submarine
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