1932 to 22 February 1945
25 May 1932
1930-33 Type R-boat/Räumboot
tons standard 46.2 tons full load
2 × MWM RS 127 Su 6 × cylinder
4 stroke diesel engines producing up to 714 ehp
2 × Voith-Schneider
800 nautical miles at 13 knots
18 men and officers
1 × 2 cm MG L/65 C/30
carried 2000 rounds
4 × 2 cm MG L/65 C/30 later
carried 4000 rounds
The R4 R-boat (Räumboot) was built in the 1930s by Abeking
shipyard located in Lemwerder, Germany as a minesweeper or Escort vessel for the Reichsmarine which became later known as the Kriegsmarine
And which served in the 5.
during the Second World War.
The R-boat R4 is commissioned.
The R-boat R4 becomes operational with the 5.
The R-boat R4 becomes operational with the 6.
22 February 1945
The R-boat R4 is attacked by Allied aircraft and sunk off
Position 45° 05N 14° 10E.
The R-boat R4 is raised.
The R-boat R4 is stricken from naval records.
The wreck off R-boat R4 is transferred to Pola, and scuttled.
German Warships, 1815-1945: Major Surface Vessels.
German Warships, 1815-1945: U-boats and Mine Warfare Vessels.
German warships of the Second World War.
For a complete list of sources