Project 667BDR Kalmar

Project 667BDR

NATO: Delta III

Type	SSBN
Soviet designation	PLARB
NATO reporting name	Delta III
Country	USSR
Displacement (t)	13,700
Length (m)	157.0
Beam (m)	11.9
Draft (m)	8.7
Height (m)	11.9
Max speed submerged (kn)	24.0
Max speed surfaced (kn)	14.0
Max safe depth (m)	320
Endurance (days)	80
Propeller	2 x 5 bladed propellers
Nuclear reactors	2
Titanium hull	No
Navigation system	Tobol-M-1 (Inertial Navigation System)
Class year	1975

Sensors

Sonar (8)

Name	Type	Platform	Passive range (km)	Active range (km)
MG-25	com	sub	—	—
MG-43 Gorizont	ssp		—	—
MG-518 Sever	Echo sounder	sub	—	—
MG-519	Mine detection	sub	—	1.5
MGK-400 Rubikon Active	Hull	sub	—	4.7
MGK-400 Rubikon Cylindrical	Cylindrical	sub	2.1	—
MGK-400 Rubikon flank array	Flank	sub	2.1	—
MGK-400 Rubikon OGS	Active Intercept		—	—

Radar (3)

Name	NATO name	Air search	Surface search	Fire control
MRK-50 Kaskad		—	Yes	—
MRP-21 Zaliv-P		—	—	—
Zavesa-P		—	—	—

Launchers (4)

Name	Tubes	Fire control	Max launch depth (m)
400mm Torpedo Tube (forward) 2 Brest-667BDR 250 1967 - 1967: 2 x SET-40 1968 - present: 2 x SET-40U
533mm Torpedo Tube (forward) 4 Brest-667BDR 250 1967 - 1967: 3 x 53-56N , 3 x SAET-60 , 10 x SET-65 1968 - 1968: 3 x 53-56N , 3 x SAET-60 , 10 x SET-65M 1969 - 1971: 3 x 53-56N , 3 x SAET-60M , 10 x SET-65M 1972 - 1980: 2 x RPK-2 Vyuga (81R) , 4 x SAET-60M , 10 x SET-65M 1981 - 1985: 4 x SAET-60M , 10 x SET-65M , 1 x URPK-6 Vodopad-PL (83R) , 1 x URPK-6 Vodopad-PL (84R) 1986 - present: 4 x SAET-60M , 10 x SET-65K , 1 x URPK-6 Vodopad-PL (83R) , 1 x URPK-6 Vodopad-PL (84R)
Missile Launcher 16 — 60 1979 - present: 16 x R-29R
VIPS	2	—	250

Extendable devices (13)

Name	NATO name	Capabilities	Max depth (m)	Max speed (kn)
Anis Radio Antenna	—	Radio (LF, MF, HF), Radio navigation	—	7.5
Iva-MV Radio Antenna	—	Radio (VLF, LF, MF, HF, VHF), Radio navigation	—	7.5
MRK-50 Kaskad Radar	—	Radar	—	7.5
MRP-21 Zaliv-P ESM	—	ESM	—	7.5
MT-70-8 Periscope (Television)	—	—	—	7.5
Pop-up Camera (VSK)	—	—	—	7.5
PR-14 Astrocorrector periscope	—	Periscope (astro)	—	7.5
PZNG-8M attack periscope	—	Periscope (attack)	—	7.5
PZNS-8 Search periscope	—	Periscope (observation)	—	7.5
RDP	—	Snorkel	—	7.5
Saiga Radiosextant	—	Radio sextant	—	7.5
UHF / Satcom	—	Radio (UHF), Navsat, Satcom	—	7.5
Zavesa-P RDF	—	Direction finder	—	7.5

Towed devices (1)

Name	Type	NATO name	Towed decoy	Capabilities	Cable (m)	Depth (m)	Speed (kn)
VVABT Paravan	Trailing buoy	—	—	Receive, Radio (VLF)	300	150 – 50	3.0 – 12.0