"Warning: Flight exceeds aircraft range"

When I get the message “Warning: Flight exceeds aircraft range” it means that in real life the plane would not be able to fly because for example there is a headwind even if the distance the distance to be covered is less than the range of the plane (realistic) Or just because the radius is smaller than the one to be covered in flight (even if the flight would have been feasible given the tailwind) (Unrealistic)?

Hi, when you get the “Warning: Flight exceeds aircraft range”, it means that the aircraft cannot fly the requested flight given the actual weather, wind, and selected fuel options. Many factors can affect this, for example:

Factor Impact Resolution
Winds Stronger headwinds (or weaker tailwinds) will require more fuel Difficult to work around, but planning on a different day or different altitude might give more favorable winds
Payload Carrying more payload requires more fuel Reducing payload might make the flight possible, for example reducing passenger count or cargo
Cruising speed Cruising faster requires more fuel Choosing a slower cruise speed might make the flight possible, for example LRC (long range cruise) or CI 0
Fuel reserves The more fuel required over destination, the less range you will have for the main flight Remove or reduce any fuel reserves that are not legally required, for example contingency fuel can sometimes be reduced or eliminated depending on the country and/or type of flight
Required alternate fuel Since you must arrive with enough fuel to proceed to the alternate, higher alternate fuel will reduce the possible range Reduce alternate fuel by choosing a closer alternate, or removing the alternate entirely if the flight/regulations permit it

So to recap, SimBrief evaluates the actual flight weather and settings when showing the “Warning: Flight exceeds aircraft range” message. It is not based on a fixed value, and even if the message gets shown, it is sometimes possible to remove it by editing certain flight options to save fuel elsewhere.

Best regards,

OK, thank you so much