Olympic-class ocean liner of 29 coal-fired steam boilers in six compartments. However, "Olympic"s boilers were adapted for firing by oil at the end of the First World War, which reduced the number of engine crew required from 350 to 60. The "Olympic"-class ships were long, displacing normally (their draft at this displacement being ), and their tonnage was around 45-46,000 GRT. "Olympic" became the largest ship in the world when it was completed in May, 1911 before losing the title to its sister "Titanic" when she was completed in April, 1912. After the loss of "Titanic" the third sister ship "Britannic" claimed the
Fedje Vessel Traffic Service Centre of Mongstad Refinery. Two other contributing factors were vessels traveling to Årdal, Høyanger and Bremanger. A larger station was therefore erected in 1977, on the same location. By 1983 the station had six pilots, eight shippers and two vessels. The need for a vessel traffic service arose with the construction of the bases and refineries at Mongstad and Sture. This created a situation with 2,500 annual shiploads of oil combined with 20,000 annual ships in other traffic. The national authorities approved the center in 1990, allowing construction to start in June 1991. This included construction of three radars, one on