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MINE WARFARE SHIPS
R401 minesweeping boats (1944 - 1945)


Ships


Name No Yard No Builder Laid down Launched Comp Fate
R401   3801 Abeking & Rasmussen, Lemwerder     9.1944 surrendered 5.1945, to USA 11.1947, sold
R402   3802 Abeking & Rasmussen, Lemwerder     10.1944 sunk 22.12.1944
R403   3803 Abeking & Rasmussen, Lemwerder     10.1944 surrendered 5.1945, to USA 11.1947, sold
R404   3804 Abeking & Rasmussen, Lemwerder     11.1944 surrendered 5.1945, to USA 11.1947, sold
R405   3805 Abeking & Rasmussen, Lemwerder     10.1944 surrendered 5.1945, to USA 11.1947, sold
R406, 1.1957- OT1 W52 3806 Abeking & Rasmussen, Lemwerder     11.1944 surrendered 5.1945, to USA 11.1947, reverted to West Germany 1.1957 (TS OT1), stricken 2.1959
R407, 1.1957- AT2 W62 3807 Abeking & Rasmussen, Lemwerder     11.1944 surrendered 5.1945, to USA 11.1947, reverted to West Germany 1.1957 (TS AT2), stricken 1.1963
R408, 12.1956- UW6 W48 3808 Abeking & Rasmussen, Lemwerder     11.1944 surrendered 5.1945, to USA 11.1947, reverted to West Germany 12.1956 (UW6), stricken 1.1963
R409   3809 Abeking & Rasmussen, Lemwerder     12.1944 surrendered 5.1945, to Soviet Union 10.1945 (КТ-1020 [KT-1020])
R410   3810 Abeking & Rasmussen, Lemwerder     12.1944 surrendered 5.1945, to Soviet Union 11.1945 (КТ-1021 [KT-1021])
R411   3811 Abeking & Rasmussen, Lemwerder     12.1944 surrendered 5.1945, to Soviet Union 11.1945 (КТ-1049 [KT-1049])
R412   3812 Abeking & Rasmussen, Lemwerder     12.1944 surrendered 5.1945, to Soviet Union 12.1945 (КТ-1030 [KT-1030])
R413   3813 Abeking & Rasmussen, Lemwerder     1.1945 surrendered 5.1945, to Soviet Union 12.1945 (КТ-1031 [KT-1031])
R414   3814 Abeking & Rasmussen, Lemwerder     1.1945 surrendered 5.1945, to Soviet Union 12.1945 (КТ-1050 [KT-1050])
R415   3815 Abeking & Rasmussen, Lemwerder     2.1945 surrendered 5.1945, to Soviet Union 12.1945 (КТ-1032 [KT-1032])
R416   3816 Abeking & Rasmussen, Lemwerder     2.1945 surrendered 5.1945, to Soviet Union 12.1945 (КТ-1033 [KT-1033])
R417   3817 Abeking & Rasmussen, Lemwerder     2.1945 surrendered 5.1945, to Soviet Union 11.1945 (КТ-1012 [KT-1012])
R418   3818 Abeking & Rasmussen, Lemwerder     2.1945 surrendered 5.1945, to Soviet Union 11.1945 (КТ-1034 [KT-1034])
R419   3901 Abeking & Rasmussen, Lemwerder     2.1945 surrendered 5.1945, to Soviet Union 12.1945 (КТ-1036 [KT-1036])
R420   3902 Abeking & Rasmussen, Lemwerder     3.1945 surrendered 5.1945, to Soviet Union 11.1945 (КТ-1022 [KT-1022])
R421   3903 Abeking & Rasmussen, Lemwerder     3.1945 surrendered 5.1945, to Soviet Union 11.1945 (КТ-1023 [KT-1023])
R422   3904 Abeking & Rasmussen, Lemwerder     3.1945 surrendered 5.1945, to Soviet Union 11.1945 (КТ-1035 [KT-1035])
R423   3905 Abeking & Rasmussen, Lemwerder     3.1945 surrendered 5.1945, to Soviet Union 11.1945 (КТ-1024 [KT-1024])
R424   3906 Abeking & Rasmussen, Lemwerder     2.1946 completed for GMSA, to Netherlands 11.1947 (Roompot)
R425   3907 Abeking & Rasmussen, Lemwerder     --- BU incomplete 1945
R426   3908 Abeking & Rasmussen, Lemwerder     --- BU incomplete 1945
R427   3909 Abeking & Rasmussen, Lemwerder     --- BU incomplete 1945


Technical data


Data variantas completed Bundesamarine
Displacement standard, t

140

140
Displacement full, t

150

150
Length, m

36.8 wl 39.4 oa

36.8 wl 39.4 oa
Breadth, m

5.72

5.72
Draught, m

1.50 normal 1.65 deep load

1.50 normal 1.65 deep load
No of shafts

2

2
Machinery

2 MWM diesels

2 MWM diesels
Power, h. p.

2800

2800
Max speed, kts

25

25
Fuel, t

diesel oil 15

diesel oil 15
Endurance, nm(kts)1000(15) 1000(15)
Armament

1 x 1 - 37/69 FlaK M/42, 3 x 2 - 20/65 C/38, 2 x 1 - 86 R Ag M42/43 AARL, 12 mines, mechanical minesweeping gear, DCR

1 x 1 - 20/80 Mk 7 (HS804)
Electronic equipmentpresumably hydrophone radar
Complement

33 - 37

33 - 37


Standard scale images


<i>R401</i> 1944
R401 1944


Project history

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.

Modernizations 12.

1956, UW6; 1.1957, AT2, OT1: were armed only with 1 x 1 - 20/80 Mk 7 (see data given in the table).

Naval service

R402 was sunk by Allied mine. R406 - 408 were commissioned by border guard in 1956 - 1957.