WWI U-boat Types

Type UB II

UB coastal torpedo attack boats class

30 boats commissioned

Construction history of type UB II

U-boats	#	Shipyard	Werk #	Built during
UB 18 - UB 23	6	Blohm & Voss, Hamburg	248 - 253	1915
UB 24 - UB 29	6	A.G. Weser, Bremen	238 - 243	1915 - 1916
UB 30 - UB 41	12	Blohm & Voss, Hamburg	254 - 265	1915 - 1916
UB 42 - UB 47	6	A.G. Weser, Bremen	244 - 249	1915 - 1916

All U-boats of type UB II

Below are the 30 commissioned U-boats of this type.

UB 18, UB 19, UB 20, UB 21, UB 22, UB 23, UB 24,
UB 25, UB 26, UB 27, UB 28, UB 29, UB 30, UB 31, UB 32,
UB 33, UB 34, UB 35, UB 36, UB 37, UB 38, UB 39, UB 40,
UB 41, UB 42, UB 43, UB 44, UB 45, UB 46, and UB 47.

Technical information for type UB II

Displacement: (tons)	263 (sf) 292 (sm) 324 (total)
Length: (m)	36,13 oa 27,13 ph
Beam: (m)	4,36 oa 3,85 ph
Draught: (draft)	3,70 m
Height:	7,34 m
Power: (hp)	284 (sf) 280 (sm)

Speed: (knots)	9,15 (sf) 5,81 (sm)
Range: (miles / knots)	6650/5 (sf) 45/5 (sm)
Torpedoes:	6 2/0 (bow / stern tubes)
Mines:	No mines carried
Deck gun:	88mm 120 rounds
Crew:	23 men
Max depth:	ca. 50 m (164 feet)

sm = submerged, sf = surfaced, ph = pressure hull,
oa = overall, hp = horsepower.