air clearance
121Naval mine — Polish wz. 08/39 contact mine. The protuberances around the top of the mine, called Hertz horns, are part of the detonation mechanism …
122History of the Royal Australian Navy — The History of the Royal Australian Navy can be traced back to 1788 and the colonisation of Australia by the British. During the period until 1859, vessels of the Royal Navy made frequent trips to the new colonies. In 1859, the Australia Squadron …
123Frogman — This article is about a type of military diver. For other uses, see Frogman (disambiguation). A French frogman with bag on chest rebreather with 2 breathing tubes (model Oxygers , 1957) …
124Mines Advisory Group — Type Non Governmental Organisation Industry Landmine relief Founded 1989 Headquarters …
125Instrument flight rules — (IFR) are a set of regulations and procedures for flying aircraft whereby navigation and obstacle clearance is maintained with reference to aircraft instruments only , while separation from other aircraft is provided by Air Traffic Control. In… …
126Auckland Airport — Infobox Airport name = Auckland Airport nativename = nativename a = nativename r = image width = caption = IATA = AKL ICAO = NZAA type = Public owner = AIAL operator = Auckland International Airport Limited city served = Auckland location =… …
127Airport — For other uses, see Airport (disambiguation). Pulkovo Airport in Saint Petersburg, Russia (2005) …
128Four-stroke engine — Four stroke cycle used in gasoline/petrol engines. The right blue side is the intake and the left yellow side is the exhaust. The cylinder wall is a thin sleeve surrounded by cooling liquid. A video montage of the Otto engines running at the… …
