"Karl-Gerät" (040/041) (German literally "Karl-device") was a World War II German self-propelled siege howitzer (Mörser) designed and built by Rheinmetall. It was the largest self-propelled weapon to see service. Seven guns were built, but only six saw combat between 1941 and 1945. It was used to attack the Soviet fortresses of Brest-Litovsk and Sevastopol, bombarded Polish resistance fighters in Warsaw and participated in the Battle of the Bulge and the attacks against the Remagen Bridgehead. Only one exists today, the others were scrapped after the war.
A section of three 54 cm Karl-Geräte in the field. The Munitionsschlepper is shown on the extreme right.
The great gun fires
The only remaining Karl Gerat today: At the Kubinka Tank Museum, Russia.
More on Nazi Weapons
Hitler's SECRET WEAPONS: V1
Hitler's SECRET WEAPONS: V2
Hitler's SECRET WEAPONS: V3
Did Hitler have an atom bomb?
Did Nazi Germany explode a nuclear bomb in its last days?
Nazi Superguns: Karl Gerat: Used in Warsaw Uprising...
Nazi Superguns: Schwerer Gustav and Dora
The Nazi scientist who made the V-2: Wernher von Braun
Nazi Secret Weapons: Wind Cannon: WindKanone
Nazi Germany's Secret Weapons and crafts: The 'UFO' Haunebu