SuperchargerIn an internal combustion engine, a supercharger compresses the intake gas, forcing more air into the engine in order to produce more power for a given displacement. The current categorisation is that a supercharger is a form of forced induction that is mechanically powered (usually by a belt from the engine's crankshaft), as opposed to a turbocharger, which is powered by the kinetic energy of the exhaust gases. However, up until the mid-20th century, a turbocharger was called a "turbosupercharger" and was considered a type of supercharger.
Flight lieutenantFlight lieutenant is a junior commissioned rank in air forces that use the Royal Air Force (RAF) system of ranks, especially in Commonwealth countries. It has a NATO rank code of OF-2. Flight lieutenant is abbreviated as Flt Lt in the Indian Air Force (IAF) and RAF, and as FLTLT in the Pakistan Air Force (PAF), Royal Australian Air Force (RAAF) and Royal New Zealand Air Force (RNZAF) and has sometimes also been abbreviated as F/L in many services; it has never been correctly abbreviated as "lieutenant".
Yugoslav government-in-exileThe Government of the Kingdom of Yugoslavia in Exile (Влада Краљевине Југославије у егзилу) was an official government-in-exile of Yugoslavia, headed by King Peter II. It evacuated from Belgrade in April 1941, after the Axis invasion of the country, and went first to Greece, then to Palestine, then to Egypt and finally, in June 1941, to the United Kingdom, and hence it is also referred to as the "Government in London" (Влада у Лондону).
FlypastA flypast is a ceremonial or honorific flight by an aircraft or group of aircraft. The term flypast is used in the United Kingdom and the Commonwealth. In the United States, the terms flyover and flyby are used. Flypasts are often tied in with Royal or state events, anniversaries, celebrations - and occasionally funerary or memorial occasions. Sometimes flypasts occur in special situations, to honour someone or to celebrate certain types of aircraft. They have affinities with parades, of which they form the aerial component.
Battles of NarvikThe Battles of Narvik were fought from 9 April to 8 June 1940, as a naval battle in the Ofotfjord and as a land battle in the mountains surrounding the north Norwegian town of Narvik, as part of the Norwegian Campaign of the Second World War. The two naval battles in the Ofotfjord on 10 April and 13 April were fought between the British Royal Navy and Nazi Germany Kriegsmarine, while the two-month land campaign was fought between Norwegian, French, British, and Polish troops against German mountain troops, shipwrecked Kriegsmarine sailors and German paratroopers (Fallschirmjäger) from the 7th Air Division.
