Ideas needed to plan a long haul flight (wind average)

[flightsimmer747 0]

I really would like some advice on this issue, i did a few long haul flights already and although i know how to get my flight plan fuel needed and adding the extra fuel because of strong headwinds, i haven't completed my flights due to insufficent fuel.Here is the problem i'm using the asv wx report when creating a flight to see the winds and speed, i'm using the average at the bottom but its not helping me. I revised my schematic to load fuel and everything comes back to the strong winds that burned my extra fuel, all else was correct i checked quite a few times.Any ideas on this issue i'm having?IS there a tip out there when adding more how much is safe based on the actual wind. An idea i got was take the fastest wind speed in the plan and assume its a direct headwind at that speed for the entire flight, therefore leaving me with enough fuel. But i can also come in too heavy.Any thoughts!

[Guest Skywalker]

To implement headwind into flighplans properly you should consult the individual aircraft manual of the aircraft. These graphs will show the impact of headwind in percentage. Rgds, Sam

[Guest skefford]

If you are serious about fuel, consider FSBuild. It imports the winds aloft from ASV and calculates fuel.Steve