Amphibious aircraft
（重定向自Amphibious plane）
- This article discusses fixed-wing amphibious aircraft. For rotary-wing amphibious aircraft, see Amphibious helicopter.
An amphibious aircraft or amphibian is an aircraft that can take off and land on both land and water. Fixed-wing amphibious aircraft are seaplanes (flying boats and floatplanes) that are equipped with retractable wheels, at the expense of extra weight and complexity, plus diminished range and fuel economy compared to planes designed for land or water only. Some amphibians are fitted with reinforced keels which act as skis, allowing them to land on snow or ice with their wheels up and are dubbed tri-phibians.