Service Data:
                    
                    In Service: 1939 to 1945
                    
                    
Production Data:
                    
                    Manufacturer: Skoda
                    Number built: 60
                    
                    
Technical Data:
                    
                    Type: Kanone
                    
                    
Calibre: 210 mm
                    
Length: 9.530 m
                    
Weight: 33,800 kg
                    
Breech: interrupted screw, de Bange obduration, percussion 
                    fired
                    
Recoil: 
                    Carriage: box trail
                    
Elevation: -4° to +45°
                    
Traverse: 360�
                    
Rate of fire: 1 rounds per minute
                    
Muzzle velocity: 800 m/s
                    
Effective range: 30,00 m
                    
Shell Weight: 135.00 kg 
                    
Used by: Heer
                    
Variants: 
                    
                    Other: Heavy Artillery
                    Articles: 
                    
                    History:
                    
                    The 21 cm K 39 (21 cm Kanone 39)
                    
                    
Gallery:
                    
                    
                    
                    Heer Comments
                      
                    
                    
Sources:
                    
                    German Artillery in World War II. 1939-1945.
                    ISBN-10: 0887407625
                    
                    German Artillery of World War Two. 
                    ISBN-10: 1853672610
                    
                    German infantry weapons of World War II. 
                    ISBN-10: 0882543725
                    
                    German Small Arms of World War II. 
                    ISBN-10: 0896730239
                    
                    For a complete list of 
sources