Arthur L. "Art" Nalls, Jr. (born 1954) is a retired United States Marine Corps officer, test pilot, and entrepreneur who owns and operates a unique air show business consisting of two Harrier jump jets as well as other aircraft. He is notable for his contributions to the air show profession restoring and flying uncommon aircraft. Nalls flew Harriers extensively in the military and developed a great enthusiasm for this jet capable of vertical/short takeoff and landing (V/STOL) operations. Supported by a group of pilots and maintainers, Nalls performs at air shows in the northeast United States and Canada. According to Nalls, his Sea Harrier XZ439 is the world's first privately owned and flown Harrier of any kind. In 2014, he acquired a two-seat Harrier that is the world's only flyable civilian Harrier trainer aircraft. In 2020, Nalls decided to sell the Harriers and focus on other aviation opportunities including the SMART-1 microjets acquired in 2018 with the purchase of Aerial Productions International.