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
Ægir-class offshore patrol vessel "Óðinn" and more seaworthy. The vessels were also armored for ice breaking. When originally commissioned the ships of the "Ægir"-class main armament was the 57 mm Hotchkiss cannon. These weapons were however replaced in 1990 with the 40 mm Bofors L60 auto-cannon, which in turn was replaced with the 40 mm Bofors L70 in the late 2000s. Among other weapons are small arms and other suitable weapons, including net cutters, which the Icelandic Coast Guard made famous during the Cod Wars. Ægir-class offshore patrol vessel The "Ægir"-class offshore patrol vessel is a class of two vessels serving in the Icelandic