The third hall is dedicated to the Royal Danish Navy. At the entrance is a photomontage of the catastrophe that overtook the regular ship service to Copenhagen on 11th June 1948. On that day the liner S/S KJØBENHAVN struck a magnetic mine, even though she followed a mine-swept channel. 48 passengers and crew members were killed. Magnetic mines detonate when influenced by the magnetic field of a passing ship, thereby creating blast waves which ”break the back” of the passing ship. During World War II Allied aircraft dropped large numbers of mines into Danish waters by parachute. Below the photomontage you see such a magnetic mine.
In the first part of the hall our decompression chambers and various diving gear are placed. The large decompression chamber, among the first to be built in Europe, was constructed in 1902 at the Royal Dock Yard in Copenhagen. It was used by the Navy until 1990, first at the Naval Diving School, Copenhagen until 1960 and later at the new Naval Base in Frederikshavn. The chamber has been modified several times. In 1960 a so-called ”NATO lock” was welded to the chamber, making it possible to connect it to a portable pressure tank. The smaller portable decompression chambers in the collection were all privately owned and cannot be connected to the larger chamber.
Decompression chambers are used in the treatment of decompression sickness (also known as the bends), which is caused by the development of nitrogen bubbles in the blood of a diver who surfaces too quickly. In the chamber, the pressure can be regulated to simulate the depth from which the diver surfaced. During the treatment in the chamber, the diver is given oxygen, which removes the nitrogen from his blood. A doctor will usually be present in the chamber during the treatment. Next to the decompression chambers gear for skin-diving as well as for deep sea diving are exhibited.
In the middle of the hall is a glass cabinet with uniforms and insignias from the Royal Danish Navy.
In this room you see a number of models of past and present ships of the Danish Navy. In the show-case along the wall you will see models of ships from the first half of the last century, such as the coastal defense ship, NIELS JUEL, which was sunk by its crew in the Isefiord on 29th August 1943 after being attacked by German aircraft. The NIELS JUEL was a strange ship. On the armored deck the guns were placed on a superstructure made of thin sheets of steel, rendering her totally unfit as a warship.
From the present you will see a model of the corvette NIELS JUEL. Together with her two sister ships, she took part in UN peacekeeping operations in the Persian Gulf and the Adriatic. There are also models of torpedo boats of the WILLEMOES-class and of the new STANDARD-FLEX-class. The latter were built at Danyard in Aalborg in a fiber glass sandwich-construction. This class of ships is based on the fundamental concept that operational flexibility can be achieved using rapidly exchangeable, modular systems matching a variety of roles. This concept will in the future also be used when building larger ships for the Navy.
In this hall you see some old guns as well as a ship-to-air missile, the SEA SPARROW, hanging down from the ceiling. On the walls are photographs of ships of the Danish Navy after World War II and Danish naval bases. Former sailors will probably recognize several of the pictures. A showcase holds a collection of special Christmas ashtrays produced by Royal Copenhagen for the Danish Navy.
At the end of the hall we have placed a ship's radio station side by side to a chart room which contains among other things a chart table, Decca and satellite navigation equipment, an anemometer and a weather chart machine.
Leaving the hall you see a beautiful model of the Danish training ship DANMARK as it looked when it was launched in 1932.