Stabilizers were used on many air vehicles and starfighters, including the V-19 Torrent starfighter, the Firespray-31-class patrol and attack craft, the T-16 skyhopper, the T-65 X-wing starfighter, the RZ-1 A-wing interceptor, and the E-wing escort starfighter. They were used to stabilize the craft from veering out of control. Types of stabilizers included the flux stabilizer, ion flux stabilizer, phi-inverted lateral stabilizer, vortex stabilizer, and 4-axial stabilizer. On swoopbikes, the stabilizer extended out from the front of the vehicle and often appeared as a fin, foil or bar.