Fuel dumping is a practice used by aircraft that are equipped to jettison fuel in the event of certain types of emergency situations. This RAAF F-111 aircraft is performing a dump-and-burn fuel dump at the Australian International Airshow, a procedure where the fuel is intentionally ignited using the plane's afterburner. This type of fuel dumping is also referred to as "torching" or a "zippo".Photo credit: John O'Neill