HMS Tobago (1918)

HMS Speedy was an S-class destroyer which served with the Royal Navy during the First World War, Russian Civil War and the Greco-Turkish War. Speedy was one of a pair of destroyers ordered from Thornycroft with more powerful geared turbines and design changes like a raised forecastle that improved seakeeping. Launched on 1 June 1918, the vessel operated as part of the 12th Destroyer Flotilla of the Grand Fleet for the last months the War. After the Armistice, the vessel joined the Mediterranean Fleet and took part in actions in the Black Sea and Sea of Marmara. It was during action there that the ship struck a tug on 24 September 1922. The collision sank the destroyer, killing ten sailors.

HMS Rosalind was an R-class destroyer which served with the Royal Navy. The ship was launched by Thornycroft on 14 October 1916 as the first of five similar ships ordered from the yard. The design was used as the basis for five subsequent ships of the S-class also built by the company. Rosalind served as part of the Grand Fleet during the First World War, operating as an escort to other warships and in anti-submarine patrols alongside other destroyers. The vessel was sold to be broken up on 13 July 1926.

Length overall is the maximum length of a vessel's hull measured parallel to the waterline. This length is important while docking the ship. It is the most commonly used way of expressing the size of a ship, and is also used for calculating the cost of a marina berth.

The beam of a ship is its width at its widest point. The maximum beam (BMAX) is the distance between planes passing through the outer extremities of the ship, beam of the hull (BH) only includes permanently fixed parts of the hull, and beam at waterline (BWL) is the maximum width where the hull intersects the surface of the water.

The draft or draught of a ship's hull is the vertical distance between the waterline and the bottom of the hull (keel). The draught of the vessel is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if deployed. Draft determines the minimum depth of water a ship or boat can safely navigate. The related term air draft is the maximum height of any part of the vessel above the water.

The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into weight. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, tonnes are more commonly used.

John Brown and Company of Clydebank was a Scottish marine engineering and shipbuilding firm. It built many notable and world-famous ships including RMS Lusitania, RMS Aquitania, HMS Hood, HMS Repulse, RMS Queen Mary, RMS Queen Elizabeth and the Queen Elizabeth 2.

A funnel is the smokestack or chimney on a ship used to expel boiler steam and smoke or engine exhaust. They are also commonly referred to as stacks.

Fuel oil is any of various fractions obtained from the distillation of petroleum. Such oils include distillates and residues. Fuel oils include heavy fuel oil, marine fuel oil (MFO), bunker fuel, furnace oil (FO), gas oil (gasoil), heating oils, diesel fuel and others.

The forecastle is the upper deck of a sailing ship forward of the foremast, or, historically, the forward part of a ship with the sailors' living quarters. Related to the latter meaning is the phrase "before the mast" which denotes anything related to ordinary sailors, as opposed to a ship's officers.

The 2-pounder gun, officially the QF 2-pounder and universally known as the pom-pom, was a 40 mm (1.6 in) British autocannon, used as an anti-aircraft gun by the Royal Navy. The name came from the sound that the original models make when firing. This QF 2-pounder was not the same gun as the Ordnance QF 2-pounder, used by the British Army as an anti-tank gun and a tank gun, although they both fired 2 lb (0.91 kg), 40 mm (1.6 in) projectiles.

Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action". It includes surface based, subsurface, and air-based weapon systems, associated sensor systems, command and control arrangements, and passive measures. It may be used to protect naval, ground, and air forces in any location. However, for most countries, the main effort has tended to be homeland defence. NATO refers to airborne air defence as counter-air and naval air defence as anti-aircraft warfare. Missile defence is an extension of air defence, as are initiatives to adapt air defence to the task of intercepting any projectile in flight.

Ceremonial ship launching involves the performance of ceremonies associated with the process of transferring a vessel to the water. It is a nautical tradition in many cultures, dating back thousands of years, to accompany the physical process with ceremonies which have been observed as public celebration and a solemn blessing, usually but not always, in association with the launch itself.

The Armistice of 11 November 1918 was the armistice signed at Le Francport near Compiègne that ended fighting on land, sea, and air in World War I between the Entente and their last remaining opponent, Germany. Previous armistices had been agreed with Bulgaria, the Ottoman Empire and Austria-Hungary. It was concluded after the German government sent a message to American president Woodrow Wilson to negotiate terms on the basis of a recent speech of his and the earlier declared "Fourteen Points", which later became the basis of the German surrender at the Paris Peace Conference, which took place the following year.

The British Mediterranean Fleet, also known as the Mediterranean Station, was a formation of the Royal Navy. The Fleet was one of the most prestigious commands in the navy for the majority of its history, defending the vital sea link between the United Kingdom and the majority of the British Empire in the Eastern Hemisphere. The first Commander-in-Chief for the Mediterranean Fleet was the appointment of General at Sea Robert Blake in September 1654. The Fleet was in existence until 1967.

HMS Blenheim was a Blake-class first class protected cruiser that served in the Royal Navy from 1890 to 1926. She was built by Thames Ironworks & Shipbuilding Company at Leamouth, London. The ship was named after the Battle of Blenheim.

Malta, officially the Republic of Malta, is an island country in the Mediterranean Sea. It consists of an archipelago, between Italy and Libya, and is part of Southern Europe. It lies 80 km (50 mi) south of Sicily (Italy), 284 km (176 mi) east of Tunisia, and 333 km (207 mi) north of Libya. The official languages are Maltese and English, and 66% of the current Maltese population is at least conversational in the Italian language.

The Greco-Turkish War of 1919–1922 was fought between Greece and the Turkish National Movement during the partitioning of the Ottoman Empire in the aftermath of World War I, between May 1919 and October 1922.

Trabzon, historically known as Trebizond, is a city on the Black Sea coast of northeastern Turkey and the capital of Trabzon Province. Trabzon, located on the historical Silk Road, became a melting pot of religions, languages and culture for centuries and a trade gateway to Persia in the southeast and the Caucasus to the northeast. The Venetian and Genoese merchants paid visits to Trabzon during the medieval period and sold silk, linen and woolen fabric. Both republics had merchant colonies within the city – Leonkastron and the former "Venetian castle" – that played a role to Trabzon similar to the one Galata played to Constantinople. Trabzon formed the basis of several states in its long history and was the capital city of the Empire of Trebizond between 1204 and 1461. During the early modern period, Trabzon, because of the importance of its port, again became a focal point of trade to Persia and the Caucasus.