. . "airport capacity." . . . . . . . . . . . "Enhanced airport capacity through safe, dynamic reductions in aircraft separation NASA's Aircraft Vortex Spacing System (AVOSS)"@en . . . . . . . . "NASA's Aircraft Vortex Spacing System (AVOSS)"@en . . . . . . . . . "Air traffic control." . . "Vortex avoidance." . . "Flight hazards." . . "Aircraft approach spacing." . . "Wakes." . .