a lighter type, such as light tank: leichter Panzer. Several classes of divisions were also classified as "light". Leopard – the name originally used for the Porsche-produced VK 30.01(P) prototype tank hull design and the Planned VK 16.02 Reconnaissance Vehicle, and later used by the Federal German Republic for the Leopard 1 and Leopard 2 Bundeswehr main battle tanks in service from the 1960s into the 21st century. Leuchtpistole – flare pistol Leuchtgeschoss/-granate – star shell Leutnant – army rank, equivalent to second lieutenant Leutnant zur See – naval rank, equivalent to lieutenant, junior grade Lichtenstein – German airborne radar used for nightfighting, in early UHF-band BC and C-1 versions, and later VHF-band SN-2 and SN-3 versions. Lorenz Schlüsselzusatz – German cipher machine. Lorenz (navigation) – pre-war blind-landing aid used at many airports. Most German bombers had the radio equipment needed to use it. "Los!" – "Go!" or "Away!" Also the U-boat command to fire a torpedo ("Fire!") Luchs – "lynx"; nickname given to the Model L version of the Panzer II. Leuchtkugel – signal flare. Luftangriff – air attack, air raid. Luftflotte – lit. air fleet. Largest sub-units within the Luftwaffe. Luftschutz – air raid protection Luftwaffe – "air force"; the German Air Force. Luftwaffenhelfer – "Luftwaffe assistant"; see FlaK-Helfer. Luftschutzpolizei – (Air Raid Protection Police) was the civil protection service in charge of air raid defence and rescue victims of bombings in connection with the Technische Nothilfe (Technical Emergency Service) and the Feuerschutzpolizei (professional fire departments). Created as the Security and Assistance Service (Sicherheits und Hilfsdienst) in 1935, it was renamed "Luftschutzpolizei" in April 1942, when transferred from the aegis of Ministry of Aviation to the Ordnungspolizei. Luftstreitkräfte – originally (October 1916) the name for the Imperial German Army Air Service of World War I, later part of the name for the East German dedicated air arm. M Mannschaften – enlisted personnel Maschinenfabrik Augsburg-Nürnberg (M.A.N.) – Augsburg-Nuremberg Machine Factory; a German engineering works and truck manufacturer. Now called MAN AG, and primary builder of the Panther tank. Marineausrüstungsstelle (Mast.) – naval equipment store Maschinenfabrik Niedersachsen Hannover (MNH) – weapon (tank) development and production firm. Maschinengewehr (MG) – machine gun, as in the MG42. Maschinengewehrschütze – machine gunner Maschinenkanone (MK) – an autocannon used for aircraft armament, as with the MK 108 30mm calibre weapon. Maschinenpistole (MP or MPi) – submachine gun, as in the MP40. Maschine – "machine".