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Project 667AN / Project 977.0 Yankee Stretch
Project 09774 Yankee Stretch class

Project 09774 Yankee-Stretch was carrier of small subs, without weapon. The submarine K-411 "Orenburg" is the sole Yankee Stretch (Project 09774) was a converted 'Yankee' class SSBN, with the missile compartment replaced by an extended hull section. After the signing of the SALT I treaty and the resulting arms reductions, it was decided to renovate the ship to support micro submarines. The submarine was supplied to MP "Asterisk in October 1983, and completed conversion in June 1990. In 1991 he was admitted to the Navy. In 1999 the submarine received the patronage of the Government of Orenburg region.

The Yankee Stretch (Orienburg) had a lengthened central section extending the hull which is used for underwater research. It served as a "mothership" for "Paltus"-class mini-submarines. It is fully 162.5 m (530 feet) in length, making it the largest of the "Yankee" conversions. Like the Yankee Pod, it lacked missile armament. Its mission was believed to be a combination of oceanographic research, search and rescue, and underwater intelligence-gathering. It had substantially increased cruising capacity, it was better stocked and offered improved living conditions for researchers. Alterations were done by MP Asterisk in cooperation with "Sevmaspredpritie", which produced this unit. Not a combatant submarine, the classification is SMPL/AS; SMPL refers to Sverkhmalaya Podvodnavy Lodka (Super-Small Submarine), the AS probably refers to Agenturnaya Spetsial'nogo (Spetsial'nogo is short for Special Designation, while Agenturnaya can be translated as undercover, secret, or more literally agent). The builders were Sevmashpredpriyatiye, Severodvinshk.

The Yankee Stretch was based in the Northern Fleet at Olenya Guba, and as of 2005 was expected to decommission soon. This submarine was decommissinoed at the enterprise "Asterisk" on 17-18 January 2009.

Displacement 11,600 tons submerged
Dimensions 162.5 x 12 x 9 meters/524.9 x 39.4 x 29.5 feet
Propulsion Steam turbines, 2 VM-4/2 reactors, 2 shafts, 52,000 shp, 28 knots
Crew approx. 110
Sonar unknown
Armament believed none



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