West Germany.
Submarines

U 22 (S 171)
Type 206A
Build at Rheinstahl Nordseewerke. Emden.
Laid down: 18/11 1971
Launched: 27/3 1973
Commissioned: 26/7 1974
1987: Modernized by Thyssen Nordseewerke from type 206 to 206A
Displacement 450 tons surf. / 520 tons sub.
Dimensions, 48,60 (oa) x 4,70 x 4,30 (surf)
Armament 8 bow 533 mm TT (8 DM-2A3 Seehecht torpedoes or 16 mines); 24 mines in external mine belt container.
Machinery: 2 MTU 12V493 AZ80 diesels (600 bhp each), 2 405-Kw generators, 1 electric motor; 1 prop; 2.300 shp.
Range 4500 NM at 5 Knots, Crew 4 officers, 18 enlisted.
U 5 (S 184)
Type 205
 Commissioned: 4/7 1963
Decommissioned: 17/5 1974. Then scrapped.
Displacement 450 t surfaced
500 t submerged
Length 43.9 m
Beam 4.6 m
Draft 4.3 m
Speed 10 kn
17 kn
Range 4200 nm surfaced at 5 kn
 

228 nm submerged at 4 kn
Propulsion 2 x 600 hp Mercedes-Benz V12-4-stroke-diesel engines
each coupled to a BBC generator
 

1 x 1100 kW SSW electric motor
Max. depth 100 m
Launching tubes 8 x 533 mm torpedo tubes
Magazine torpedoes and naval mines
Complement 18 enlisted, 4 officers


 A class of diesel-electric German hunter-killer U-boat submarines. They were single-hull vessels optimized for the use in the shallow Baltic Sea. The Type 205 is a direct evolution of the Type 201 class with lengthened hull, new machinery and sensors. The biggest difference though is that ST-52 steel is used for the pressure hull since the Type 201's non-magnetic steel proved to be problematic. Type 206, the follow-on class, finally succeeded with non-magnetic steel hulls.

The Type 205 remains in service with the Danish Navy, in which it is known as Tumleren class. The Danish boats differ slightly from the German ones to meet special Danish demands.