Microsoft Flight Simulator 2004 and FSX: Responding to the menu-based air traffic control in Microsoft Flight Simulator 2004 and FSX can be done using the GF-ATC's single rotary knob. An integrated push switch and single-digit LED display give FlightSim pilots control over the ATC pop-up menu and all menu selections. FlightSim pilots will experience a new touch of realism while waiting for ATC at busy virtual airports. Software Compatibility: All Microsoft Flight Simulator 2004 (FS9) and FSX: default and add-on aircraft. All X-Plane (excluding Mobile version) and Project Magenta software modules. The functions assigned to each configurable element are configured using GoFlight's GFConfig software (go to the current version by clicking here). Dimensions: 2" tall, 7.25" wide, 5.5" back clearance. The mounting hole centers are 0.5" down from the top edge of the panel, 6.75" apart, and 0.25" from the left & right edges of the panel. The GF-ATC requires 2" of vertical space in a GoFlight module bay, and is compatible with all GoFlight cockpit module enclosures. For mounting in custom cockpits, allow 5" of depth behind your panel for accommodation of the audio cables.