01/08/2026
40.6cm Adolf " Barbara " kanonen
The Adolf Gun "Barbara" at Trondenes Fort in Harstad is one of the world's largest remaining land-based battleship guns from World War II. The gun battery was built by the German occupying forces in 1943 under the name Batterie Theo to protect the strategically vital shipping lane used for transporting iron ore to Narvik. Out of the four original giant guns at the fort, Gun I, named "Barbara", has been fully restored and is maintained in working condition today as an open-air museum.
The name "Barbara" most likely refers to Saint Barbara, the patron saint of artillerymen. The nickname "Adolf Gun" comes from the special, lighter long-range shell known as the Adolf shell.
Technical Specifications
Caliber: 40.6 cm (16 inches).
Barrel length: 20.3 meters.
Maximum range: Up to 56 kilometers using the lightweight 600 kg Adolf shell.
Standard am******on: Weighed 1,030 kg with a range of approximately 43 kilometers.
Maximum shell altitude: The trajectory of the shell could reach a peak altitude of 21,800 meters above the ground.
Historical Background and Present Day
The guns were originally manufactured by the Krupp firm to be mounted on Hi**er's planned, but never completed, H-class mega-battleships. When ship construction was halted, Hi**er ordered the guns to be deployed as coastal artillery along the Atlantic Wall. The construction work at Trondenes was extremely brutal and claimed the lives of over 800 Soviet prisoners of war who were used as forced laborers.
After the war, the Norwegian Armed Forces took over the facility. The guns were last test-fired by Norwegian forces in 1957 and officially decommissioned in 1964. Since late 1978, the Ministry of Defence and dedicated veterans have ensured the extensive restoration and maintenance of "Barbara".