HMS Victoria was the lead ship in her class of two battleships of the Royal Navy. On 22 June 1893, she collided with near Tripoli, Lebanon, during manoeuvres and quickly sank, killing 358 crew members, including the commander of the British Mediterranean Fleet, Vice-Admiral Sir George Tryon. One of the survivors was executive officer John Jellicoe, later commander-in-chief of the British Grand Fleet at the Battle of Jutland. Design Victoria was constructed at a time of innovation and rapid development in ship design. Her name was originally to be Renown, but this was changed to Victoria while still under construction to celebrate Queen Victoria's Golden Jubilee, which took place the year the ship was launched. Her arrival was accompanied by considerable publicity. She was the largest, fastest and most powerful ironclad afloat, with the heaviest guns. She was the first battleship to be propelled by triple-expansion steam engines. These were constructed by Humphrys, Tennant and Company of Deptford and had cylinders of diameters , and with stroke of . They produced under forced draught, or under open draught. She was also the first Royal Navy ship to be equipped with a steam turbine which was used to run a dynamo. A detailed model of the ship was exhibited at the Royal Navy exhibition in 1892, and another in silver was given to Queen Victoria by the officers of the Royal Navy and Royal Marines as a Jubilee gift. Design limitations Despite the ship's many impressive features, compromises in the design meant that she proved less than successful in service. The ship was nicknamed 'the Slipper' (or when with her sister ship , also attached to the Mediterranean squadron, 'the pair of Slippers') because of a tendency for her low foredeck to disappear from view in even slight seas, and especially, as a result of the low forward deck and raised aft superstructure, for the two ships' humorously perceived resemblance to the indoor footwear. The forward deck held a single turret with two BL Mark I guns. The gun was chosen because similar large guns had been used in foreign ships, and because of difficulties in obtaining the navy's preferred design. The great weight of the forward turret with its two guns meant that it had to be mounted low so as not to detract from the ship's stability, and that a similar large gun and turret could not be mounted