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667AM YANKEE II

In 1977 the "K-140" submarine was equipped with the first D-11 Soviet sea based solid-fuel missiles and received the designation 667AM Yankee II. The 12 P-31 missiles loaded on the submarine could be fired from a depth up to 50 meters. The torpedo tubes could be reloaded in less than in one minute using a "dry" launch technique. Its submerged displacement increased to 10,000 tons.

The Nunn-Lugar Cooperative Threat Reduction program is scheduled to dismantle 25 Delta-class, five Typhoon-class, and one Yankee-class ballistic missile submarines capable of launching over 400 missiles with over 1,700 warheads, by the year 2003. As of September 1999 US specialists had helped disassemble one Yankee- and six Delta-class submarines, while the Russians had destroyed another five ballistic missile subs on their own using American equipment.

Specifications

Soviet Designation

667A
667AU Navaga

667 Am Navaga

US-Designation

Yankee I

Yankee II

Development began

1958

Design Bureau

Central Design Bureau for Marine Engineering "Rubin"

Chief designer

S.H. Kovalev

O.YA. Margolin

Builders

Severodvinsk
Komsomol Na Amur

Construction and Outfit

667A: 1964-1974
667AU: 1972-1983

1977-1980

Service time

667A: 1967-1983
667AU: 1972-1994

1980-1990

Number of ships

34

1

Armament

667A: D-5 launch system with
16 R-27 missiles

667AU: D-5U launch system with
16 R-27U missiles

D-11 launch system with
12 R-31 missiles

4-533mm torpedo tubes
2-400mm torpedo tubes

Power Plant
2 pressurized water reactors
2 steam turbines, 52.000 hp each

Length

132 meters

Beam

11.6 meters

Deposit

8 meters

Displacement

7,760 tons Surfaced

9,600 tons Submerged

10,000 tons Submerged

Maximum depth

400 meters

Speed

12 knots Surface

25 knots Submerged

24 knots Submerged

Crew

120 men

130 men

Self-sufficiency

70 days

Class Listing

Boat Shipyard Chronology Notes

# number Name Laid Down Launched Comm. Stricken

1 K-140 402 Sevmash ---------- ---------- 12/30/1967 1990 08/23/1968 reactor accident
1977-80 project 667AM converted (Yankee II)

Class Listing
Boat	Shipyard	Chronology	Notes
#	number	Name	Laid Down	Launched	Comm.	Stricken
1	K-140		402 Sevmash	----------	----------	12/30/1967	1990	08/23/1968 reactor accident 1977-80 project 667AM converted (Yankee II)

Sources and Resources

Russian Strategic Nuclear Weapons, Pavel Podvig, ed., IzdAT, Moscow, 1998, 492 pp. (in Russian). Authors: Oleg Bukharin, Timur Kadyshev, Eugene Miasnikov, Pavel Podvig, Igor Sutiagin, Maxim Tarasenko, Boris Zhelesov
Pr. #667A/AU 'Navaga' NATO Code 'Yankee I/II' @ warships1.com
Russian Submarine List @ Steel in the Deep Submarine Site

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Specifications
Soviet Designation	667A 667AU Navaga	667 Am Navaga
US-Designation	Yankee I	Yankee II
Development began	1958
Design Bureau	Central Design Bureau for Marine Engineering "Rubin"
Chief designer	S.H. Kovalev	O.YA. Margolin
Builders	Severodvinsk Komsomol Na Amur
Construction and Outfit	667A: 1964-1974 667AU: 1972-1983	1977-1980
Service time	667A: 1967-1983 667AU: 1972-1994	1980-1990
Number of ships	34	1
Armament	667A: D-5 launch system with 16 R-27 missiles 667AU: D-5U launch system with 16 R-27U missiles	D-11 launch system with 12 R-31 missiles
	4-533mm torpedo tubes 2-400mm torpedo tubes
Power Plant	2 pressurized water reactors 2 steam turbines, 52.000 hp each
Length	132 meters
Beam	11.6 meters
Deposit	8 meters
Displacement	7,760 tons Surfaced
	9,600 tons Submerged	10,000 tons Submerged
Maximum depth	400 meters
Speed	12 knots Surface
	25 knots Submerged	24 knots Submerged
Crew	120 men	130 men
Self-sufficiency	70 days