concerned with operations A3 Air Operations Branch, of the Joint Force Air Component Headquarters UK USS Grampus (SS-4), a Plunger-class submarine of the United States Navy Aggregate 3, the 3rd design in the Aggregate family of rockets, precursor to the V-2 rocket, developed by the Germans during World War II Other uses A3, an example of a root system with numerous physical and geometrical applications A-3 visa, a document given to employees of A-1 and A-2 Visa Holders who are representing a foreign government inside the U.S. A3, the code for permission to use specific land or premises for restaurants and cafés in town and country planning in the United Kingdom A3 roads, in several countries A-003, the fourth abort test of the Apollo spacecraft Biu-Mandara A.3 languages, an Afro-Asiatic family of languages spoken in Cameroon and Nigeria Cowon A3, an audio media player Aegean Airlines, by IATA code Tonga, by aircraft registration code ARITH-MATIC, as the former name for this programming language "Agora! Anarchy! Action!", a slogan for Agorism taken from the New Libertarian Manifesto by Samuel Edward Konkin III A3 problem solving, a structured problem solving and continuous improvement approach, first employed at Toyota Samsung Galaxy A3, a smartphone manufactured by Samsung Electronics Samsung Galaxy A03, a smartphone manufactured by Samsung Electronics A³ (A-cubed), an Airbus start-up in the Silicon Valley A3 (TV channel), an Algerian public national television channel also known as Thalitha TV RED A03, an aircraft diesel engine by German company Red Aviation GmbH See also A-Train III, a 1992 computer game M16A3, a variant of the American M16 rifle M60A3, a variant of the American M60 Patton tank A3J, the original designation of the US Navy's A-5 Vigilante bomber