In Service: 1940 to 1957
                    
                    
                    
                    Ordered:
                    Builder: Burmester, 
                    Burg-Lesum
                    
Construction No: 2445
                    
Laid down: 
                    Launched: 23 October 1940
                    
Commissioned: 1940
                    
                    
                    
                    Type: 1937-43 Type R-boat/Räumboot
                    
Class: R25 Class
                    
                    
Displacement: 110 tons standard 126 tons full load
                    
Length: 35.4 m
                    
Beam: 5.55 m
                    
Draft: 1.5 m
                    
Propulsion: 2 × MWM RS 127 Su 6 × cylinder 
                    4 stroke diesel engines producing up to 1,800 ehp
                    
Propellers: 2 × Voith-Schneider
                    
Speed: 23.5 knots
                    
Range: 1,100 nautical miles at 15 knots
                    
Crew: 31 men and officers
                    
Armament:
                    1 × 3.7 cm L/83 SK C/30 later
                    carried 1000 rounds
                    2 × 2 cm MG L/65 C/30
                    carried 2000 rounds
                    10 mines
                    
Armour
                    Aircraft:
                    Electronics: 
                    Operators: Kriegsmarine
                    
Variants: 
                    Other: R-boats 
                    Articles: 
                    
                    
                    
                    The R156 R-boat (Räumboot) was built in the 1940s by 
Burmester 
                    shipyard located in Burg-Lesum, Germany as a minesweeper or escort vessel for the Kriegsmarine.
                    
                    And which served in the 
7. 
                    Räumbootsflottille during World War II.
                    
                    And after the surrender of Germany was employed in the 
German Mine Sweeping Administration (GMSA) which was controlled 
                    by the allies.
                    
                    
                    
                    1940
                    The R-boat R156 is commissioned.
                    
                    
1940
                    The R-boat R156 becomes operational with the 
7. 
                    Räumbootsflottille.
                    
                    
1945
                    The R-boat R156 serves with the 
German Mine Sweeping Administration (GMSA).
                    
                    
1 December 1945
                    The R-boat R156 is seized as a prize of war by the Danish.
                    
                    
1945
                    The R-boat R156 is renamed MR156.
                    
                    
1951
                    The MR156 is renamed Dyrnaes.
                    
                    
1957
                    The Dyrnaes is used as a target ship.
                    
                    
1957
                    The Dyrnaes is stricken from naval records.
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    German Warships, 1815-1945: Major Surface Vessels.
                    ISBN-10: 0851775330
                    
                    German Warships, 1815-1945: U-boats and Mine Warfare Vessels.
                    ISBN-10: 155750301X
                    
                    German warships of the Second World War.
                    ISBN-10: 0668040378
                    
                    For a complete list of 
sources