WWI U-boat Types

Type U 23

Mittel-U class

4 boats commissioned

Construction history of type U 23

U-boats	#	Shipyard	Werk #	Built during
U 23 - U 26	4	Germaniawerft, Kiel	177 - 180	1911 - 1914

All U-boats of type U 23

Below are the 4 commissioned U-boats of this type.

U 23, U 24, U 25, and U 26.

Technical information for type U 23

Displacement: (tons)	685 (sf) 878 (sm) 971 (total)
Length: (m)	64,70 oa 52,36 ph
Beam: (m)	6,32 oa 4,05 ph
Draught: (draft)	3,56 m
Height:	7,68 m
Power: (hp)	1850 (sf) 1200 (sm)

Speed: (knots)	16,4 (sf) 9,7 (sm)
Range: (miles / knots)	8790/8 (sf) 80/5 (sm)
Torpedoes:	6 2/2 (bow / stern tubes)
Mines:	No mines carried
Deck gun:	105mm 300 rounds
Crew:	35 men
Max depth:	ca. 50 m (164 feet)

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