DEMOSTENES: El submarino K-18 modernizado inicia pruebas de mar

DEMOSTENES: El submarino K-18 modernizado inicia pruebas de mar

Soviet Designation	667BDRM Dolphin
US-Designation	Delta IV
Development began	September 1975
Design Bureau	Central Design Bureau for Marine Engineering "Rubin"
Chief designer	S.H. Kovalev
Builders	Nr. 402 Severodvinsk
Construction and Outfit	February 1981-1992
Service time	December 1985-
Number of ships	7
Armament	D-9 RM launch system with 16 R-29 RM missiles
	4-533mm torpedo tubes
Power Plant	2 pressurized water reactors, 90 MW each 2 steam turbines, 20.000 hp each
Propellers	2 × 7 blade fixed-pitch
Length	167 meters
Beam	12 meters
Draft	8.8 meters
Displacement	11,740 tons Surfaced 18,200 tons Submerged
Operational depth	320 meter