A helicopter includes a mast, a main rotor, an engine, a radiator, and a body cover. The engine and the radiator are housed in the body cover. The body cover includes a first opening penetrated by the mast, a second opening that is located at a more forward position than the first opening and configured to introduce air to the radiator, and a third opening located at a position that is more forward than the first opening and more rearward than the radiator. The third opening is located at a higher position than the second opening and the radiator.