Transfer from England of 4 under way. The Upholders are replacing the old Oberon class subs. Expected to be in service in 2000-2001.
Characteristics:
Displacement: 2,160 / 2,400 tons surfaced /
submerged
Dimensions: 70.3 x 7.6 x 6.5 meters (230.6 x 24.9 x 21.3 feet)
Propulsion: Diesel-electric, 1 shaft, 5400 shp, 20 knots subm.
Crew: 46
Sonar: unknown Canadian towed array, Type 2040 Passive/Active bow
sonar, Type 2007 Passive search Flank array sonar Fire Control:
Type 2019 Passive/Active Ranging & Intercept Sonar
Armament: Six forward 21" tubes for 18 Mk.48
torpedoes (and/or Sub-Harpoon)
It is not known is Sub-Harpoon will be purchased.