An airtanker is an aircraft that is modified with on-board water/fire retardant tanks and is used in aerial firefighting to combat and control wildfires. A wide variety of terminology has been used in the popular media for the aircraft used in aerial firefighting, as well as the methods used. In the U.S., the terms airtanker or air tanker generally refer to fixed-wing aircraft, with "airtanker" being the form used in official documentation.[1][2] In Europe, water bomber is the predominant term, and this name also appears frequently in popular media. Helicopters, when their sole function is dropping water or retardant (as opposed to also moving personnel) are referred to as helitankers.
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