Upholder (S40)

Built By:	Vickers (Barrow)
Build Group:	2400
Fate:	Laid up 1995 then Lease/Sold to Canadians in 2000, became Chicotimi. Caught fire en route to Canada with the loss of one life

The four Upholder Class boats awaiting reactivation in Buccleuch Dock, Barrow

Unseen being lifted out of the water during her reactivation

HMS Upholder entering Walney Channel. The new dock gates to accommodate Trident were under construction in the background

Upholder passing through the Thames barrier

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Events

02-12-1986 :	Launched
09-06-1990 :	Completed

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Boats In Class

Official

2400 Specification

Length overall	70.25m
Beam	7.20m
Depth	7.60m
Displacement	1850 tonnes (surface)
	2400 tonnes (submerged)
Diving Depth	200m+
Speed	Surface 12 knots (design)
	20 knots + (service)
No. of shafts	1
Armament	6 533mm bow tubes (12 reloads)
	Sub-Harpoon missiles
	Wire Guided Torpedoes
	Mines
Sensors	Type 2046 Towed array.
	Type 2040 Passive/Active bow sonar
	Type 2019 Passive/Active Range + Intercept Sonar
	Type 2007 Passive search flank array sonar
	Type 1007 Navigation radar
Complement	47

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