WWI U-boat Types
The following is a listing of all the U-boat types that served in WWI.
Boats built for export
U 66 (5), UA (1)Gasoline-powered boats
U 1 (1), U 2 (1), U 3 (2), U 5 (4), U 9 (4), U 13 (3), U 16 (1), U 17 (2)Ocean-going diesel-powered torpedo attack boats
U 19 (4), U 23 (4), U 27 (4), U 31 (11), U 43 (8), U 51 (6), U 57 (12), U 63 (3), Large Ms. (4), U 81 (6), U 87 (6), U 93 (22)U-Cruisers and Merchant U-boats
U 151 (7), U 139 (3), U 142 (1)UB coastal torpedo attack boats
UB I (17), UB II (30), UB III (89)UC coastal minelayers
UC I (15), UC II (64), UC III (16)UE ocean minelayers
UE 1 (10), UE 2 (9)
Before the end of WWI 375 U-boats of 33 separate classes belonging to 7 general types had been commissioned. Additional boats were finished after the war, the last one being UB-133 in April 1919.
Shipyards
See all the shipyards that built U-boats before and during WWI.