 In the 1960s the use of joysticks became widespread in radio-controlled model aircraft systems such as the Kwik Fly produced by Phill Kraft (1964).The now-defunct Kraft Systems firm eventually became an important OEM supplier of joysticks to the computer industry and other users.The first use of joysticks outside the radio-controlled aircraft industry may have been in the control of powered wheelchairs, such as the Permobil (1963).