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
Athenian sacred ships Athenian sacred ships Athenian sacred ships were ancient Athenian ships, often triremes, which had special religious functions such as serving in sacred processions ("theoria") or embassies or racing in boat races during religious festivals. The two most famous such ships were the "Paralus" and the "Salaminia", which also served as the messenger ships of the Athenian government in the 5th and 4th centuries BC. Other notable ships included one possibly named the "Delias", a "triakonter" (thirty-oared galley) believed to be the ship in which Theseus had sailed to Crete, and which was involved in several traditional theoria to Delos; the