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
P400-class patrol vessel future class of patrol vessels to replace the P400s as they retire. The working name for this future class is BATSIMAR ("Bâtiments de surveillance et d'intervention maritime", or 'surveillance and maritime intervention ships' in English). P400-class patrol vessel The P400 patrol ships are small vessels of the French Navy. They were designed to accomplish police operations in the French Exclusive Economic Zone. They were built by the "Constructions Mécaniques de Normandie", which specialise in small military craft. Two similar ships are in service in Gabon. The P400 were originally designed in two versions: one armed with Exocet MM38 missiles, and