The RVR button will remain deauthorised (light grey, displaying 'GND FOG REQ') until Ground Fog is selected. Switching Ground Fog ON within the Quick Setup scenario will cause the scenario RVR to default to 300m.
Setting a Cloud Base will set a Cloud Top equal to the selected Cloud Base plus 500ft.
Entry of a Cloud Top below the current Cloud Base will not be accepted. The Cloud Top will be set to the current Cloud Base plus 500ft.
Entry of a Cloud Base above the current Cloud Top will cause the Cloud Top to be set to the newly entered Cloud Base plus 500 ft.
Entry of a Cloud Top of zero ft automatically sets the Cloud Base to zero ft (i.e. the cloud layer is turned off).
Manual entry of a Total Fuel or Zero Fuel Weight value will cause the CG button to display '-----'..
Manual entry of a CG value will cause the Stab Trim button to display '-----' and vice versa.
CG and Stab Trim values will both be displayed upon loading a scenario as it is assumed that the 2 will be equivalent. It is possible to
configure the scenario data so that only one of these values is loaded and set by the scenario, the other being calculated by the real-time
software.
Manual selection of a Rwy Contamination causes the Braking Action button to display '-----'.
Select of the Braking Action button displays a popup identical to that displayed via the Visual/Runway Conditions page.