Graffiti artist Banksy unmasked ... as a former public schoolboy from middle-class suburbia. He is perhaps the most famous, or infamous, artist alive. To some a genius, to others a vandal. Always controversial, he inspires admiration and provokes outrage in equal measure.
A canard is an aircraft design which places the large main wing behind the smaller horizontal stabilizer. This results in a triangular shape of the aircraft, similar to a duck in flight, which is where the term canard originated (the word canard is french for duck).
TACtical Air Navigation, or TACAN, is a navigation system used by military aircraft. It provides the user with a distance and bearing from a ground station. It is a more accurate version of the VHF omnidirectional range / Distance Measuring Equipment (VOR-DME) system that provides range and bearing information for civil aviation.