Keywords: Mahmudiye (1829).jpg Mahmudiye 1829 ordered by the Ottoman Sultan Mahmud II and built by the Imperial Naval Arsenal on the Golden Horn in Istanbul was for many years the largest warship in the world The 201 x 56 kadem 1 kadem 37 887 cm or 76 15 x 21 22 m ft on kadem which translates as foot is often misinterpreted as equivalent in length to one imperial foot hence the wrongly converted dimensions of 201 x 56 ft or 62 x 17 m in some sources ship-of-the-line was armed with 128 cannons on 3 decks and carried 1 280 sailors on board She participated in many important naval battles including the Siege of Sevastopol 1854-1855 during the Crimean War 1854-1856 She was decommissioned in 1874 This image is in the public domain due to its age Turkish Naval Forces Command Piri Reis History Research Center Historic image from the archives of the Turkish Navy PD-old PD-old Original upload log page en wikipedia Mahmudiye_ 281829 29 jpg 2007-06-09 20 38 Flavius Belisarius 400×252× 80637 bytes <nowiki> Mahmudiye 1829 ordered by the Ottoman Sultan Mahmud II and built by the Imperial Naval Arsenal on the Golden Horn in Istanbul was for many years the largest warship in the world The 201m long ship was </nowiki> Mahmudiye ship |