Oscarsborg Fortress
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Oscarsborg Fortress is a coastal fortress in the Oslofjord, close to the town of Drøbak in Akershus County, Norway. The best known part is situated on two small islets: Nordre Kaholmen and Søndre Kaho
Oscarsborg Fortress' Main Island seen from the south-west.
Oberst Birger Eriksen, the commander of Oscarsborg on 9 April 1940.
Harbour Fortress on South Kaholmen. The 28 cm guns are on this island on the left, the torpedo battery to the right. Scars in the rock are over the torpedo exit tunnels. The Old Barracks in the background
One of the three 28 cm (11.0 in) main battery guns at Oscarsborg.
28 cm MRK L/35
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The 28 cm MRK L/35 was a German naval gun that was used in World War I as the primary armament of the Brandenburg-class pre-dreadnought battleships. It also saw use as a Coastal-defense gun during Wor
Oscarsborg Fortress
…making it impossible for large vessels to sail west of the fortress. From 1890 new improved German guns were installed. The main armament was three 28 cm calibre guns (11 inch) manufactured by Krupp. There were also a number of guns with smaller calibres (15 cm and 57 mm) on the mainland. An underwater torpedo battery…
A 28 cm gun at Oscarsborg Fortress
28 cm gun at Oscarsborg Fortress
The Blücher sinking