Aerobatics is the practice of flying maneuvers involving aircraft attitudes that are not used in normal flight.[1][2] Aerobatics are performed in airplanes and gliders for training, recreation, entertainment and sport. Some helicopters, such as the MBB Bo 105, are capable of limited aerobatic maneuvers,[3] and Chuck Aaron is the only US pilot certified to do helicopter aerobatics.[4] The term is sometimes referred to as acrobatics, especially when translated.[citation needed]
Most aerobatic maneuvers involve rotation of the aircraft about its longitudinal (roll) axis or lateral (pitch) axis. Other maneuvers, such as a spin, displace the aircraft about its vertical (yaw) axis.[5] Maneuvers are often combined to form a complete aerobatic sequence for entertainment or competition.
Aerobatic flying requires a broader set of piloting skills and exposes the aircraft to greater structural stress than for normal flight.[6] In some countries, the pilot must wear a parachute when performing aerobatics.[7]
While many pilots fly aerobatics for recreation, some choose to fly in aerobatic competitions, a judged sport.[8]