Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
---|---|---|---|---|---|---|---|
R17 | 798 | Schlichting-Werft, Travemünde | 10.1935 | sunk 10.4.1940 | |||
R18 | 2874 | Abeking & Rasmussen, Lemwerder | 8.1935 | surrendered 5.1945, to Denmark 12.1945 (MR18), BU 1947 | |||
R19 | 2875 | Abeking & Rasmussen, Lemwerder | 10.1935 | sunk 16.9.1943 | |||
R20 | 2876 | Abeking & Rasmussen, Lemwerder | 12.1935 | sunk 16.8.1944 | |||
R21 | 2977 | Abeking & Rasmussen, Lemwerder | 11.1937 | surrendered 5.1945, to United Kingdom 12.1947, BU | |||
R22 | 2978 | Abeking & Rasmussen, Lemwerder | 10.1937 | surrendered 5.1945, to USA 10.1947, sold mercantile | |||
R23 | 2979 | Abeking & Rasmussen, Lemwerder | 1.1938 | surrendered 5.1945, to Soviet Union 10.1945 (КТ-1001 [KT-1001]) | |||
R24 | 815 | Schlichting-Werft, Travemünde | 12.1937 | surrendered 5.1945, foundered 16.5.1949 |
Displacement standard, t |
|
---|---|
Displacement full, t | R17 - 20: 120 R21 - 24: 124 |
Length, m | R17 - 20: 36.9 R21 - 24: 37.0 |
Breadth, m | R17 - 20: 5.44 R21 - 24: 5.77 |
Draught, m | R17 - 20: 1.30 normal 1.38 deep load R21 - 24: 1.35 normal 1.38 deep load |
No of shafts | 2 Voith-Schneider |
Machinery | 2 MAN diesels |
Power, h. p. | R17 - 20, 22 - 24: 1800 R21: 2200 |
Max speed, kts | 21 |
Fuel, t | diesel oil 10.8 |
Endurance, nm(kts) | 900(15) |
Armament | 2 x 1 - 20/65 C/30, 12 mines, mechanical minesweeping gear |
Complement | R17 - 20: 16 - 17 R21 - 24: 21 - 27 |
Motor minesweeping boats, or R-boats (Räumboote) were developed for shallow water areas, but actually became multi-purpose ships for operations in inshore waters; besides the basic purpose, they were used as patrol, anti-submarine and rescue ships. The prototype was created by F.Lürssen on the basis of F type minesweeping boat of WWI period.
All had composite hulls. Usage of minesweeping gear was supposed at heaving to 6 on the Beaufort scale.
1943, most survived: - 2 x 1 - 20/65 C/30; + 2 x 2 - 20/65 C/38, 2 x 1 - 20/65 C/38, DCR
1944, some survived: + 1 x 1 - 86 R Ag M42/43 AA RL
R17 was sunk by Norwegian minelayer Olav Tryggvason. R19 was sunk by Allied aircraft. R20 was sunk by German mine.