U63 1916
| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| U63 | 247 | Germaniawerft, Kiel | 1915 | 8.2.1916 | 3.1916 | Austrian flag 1916 (U63), to United Kingdom 1.1919 | |
| U64 | 248 | Germaniawerft, Kiel | 1915 | 29.2.1916 | 4.1916 | Austrian flag 1916 (U64), sunk 17.6.1918 | |
| U65 | 249 | Germaniawerft, Kiel | 1915 | 21.3.1916 | 5.1916 | Austrian flag 1916 (U65), scuttled 28.10.1918 |
|
Displacement standard, t |
|
|
Displacement normal, t |
810 / 927 |
|
Length, m |
68.4 |
|
Breadth, m |
6.30 |
|
Draught, m |
4.04 |
|
No of shafts |
2 |
|
Machinery |
2 Germania diesels / 2 SSW electric motors |
|
Power, h. p. |
2200 / 1200 |
|
Max speed, kts |
16.5 / 9 |
|
Fuel, t |
diesel oil 108 |
|
Endurance, nm(kts) |
9170(8) / 60(5) |
|
Armament |
1 x 1 - 105/43 TK L/45 C/16, 4 - 500 TT (2 bow, 2 stern, 8) |
|
Complement |
36 |
|
Diving depth operational, m |
50 |
Project history: Medium coastal submarines of Mobilization type, improved U51. Double-hulled.
Modernizations: late 1916, all: + 1 x 1 - 88/27 TK L/30 C/08
mid-1918, all: - 1 x 1 - 88/27
Naval service: All three since 1916 served in the Mediterranean under Austro-Hungarian flag. U64 was sunk SO of Sardinia 17.6.1918 by Ramming and depth charges of British trawler Partridge II and sloop Lychnis.
© Ivan Gogin, 2014