| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| Ditmar Koel | 491 | Stülcken, Hamburg | 1.1916 | 7.1916 | sold 4.1919 | ||
| Fischhandel | 516 | Stülcken, Hamburg | 3.1916 | 4.1916 | sold 3.1919 | ||
| Bahrenfeld | 517 | Stülcken, Hamburg | 4.1916 | 7.1916 | sold 5.1919 | ||
| Kaiser Leopold | 519 | Stülcken, Hamburg | 5.1916 | 6.1916 | sold 3.1919 | ||
| Admiral Parseval | 520 | Stülcken, Hamburg | 8.6.1916 | 8.1916 | sold 11.1918 | ||
| Sonnin | 524 | Stülcken, Hamburg | 1916 | 8.1916 | sunk 28.6.1917 | ||
| Nikolaus Schoke | 525 | Stülcken, Hamburg | 1916 | 9.1916 | sunk 3.3.1917 | ||
| Heinrich Jenevelt | 526 | Stülcken, Hamburg | 30.8.1916 | 10.1916 | sold 5.1919 | ||
| Flottbek | 528 | Stülcken, Hamburg | 27.12.1916 | 1917 | sunk 15.6.1919 | ||
| Hein Godenwind | 534 | Stülcken, Hamburg | 12.1917 | 3.1918 | sold 1920 | ||
| Finkenwärder | 535 | Stülcken, Hamburg | 9.1918 | 3/1919 // --- | never commissioned, sold 3.1919 |
|
Displacement standard, t |
|
|
Displacement full, t |
450 |
|
Length, m |
39.5 |
|
Breadth, m |
7.33 |
|
Draught, m |
2.83 |
|
No of shafts |
1 |
|
Machinery |
1 VTE, 1 boiler |
|
Power, h. p. |
400 |
|
Max speed, kts |
10 |
|
Fuel, t |
coal 145 |
| Endurance, nm(kts) | 5200(10) |
|
Armament |
1 x 1 - 88/27 SK L/30 C/89 or 88/32 SK L/35 C/01 or 88/27 TK L/30 C/08 |
| Complement | 31 |
Project history: Fishery trawlers, purchased by Navy during building and commissioned as auxiliary patrols.
Modernizations: None.
Naval service: Sonnin was sunk on mine laid by British submarine E34 28.6.1917 NW off Terschelling. Nikolaus Schoke was sunk on mine laid by British submarine E46 3.3.1917 N off Terschelling. Flottbek was mined 15.6.1919 35nm NW off Norderney.
© Ivan Gogin, 2008-14