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B777-268 320Kts Cruise One Engine Inop Chart

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Anyone know how to plot this?

Jim Driscoll, MSI Raider GE76 12UHS-607 17.3" Gaming Laptop Computer - Blue Intel Core i9 12th Gen 12900HK 1.8GHz Processor; NVIDIA GeForce RTX 3080 Ti 16GB GDDR6; 64GB DDR5-4800 RAM; Dual M2 2TB Solid State Drives.Driving a Sony KD-50X75, and KDL-48R470B @ 4k 3724x2094,MSFS 2020, 30 FPS on Ultra Settings.

Jorg/Asobo: “Weather is a core part of our simulator, and we will strive to make it as accurate as possible.”Also Jorg/Asobo: “We are going to limit the weather API to rain intensity only.”


 

I hope I'm not too bad at it but here is an example of what it would give for an example of let's say a 800NM distance with a 50kts tail wind and a weight at the critical point of 240 you would need about 18 000kg of fuel. 

 

So if I'm correct you start by taking the distance to your alternate airport.

 

You start tracing your line upward until the point where there is a 0 wind.

Then you follow the shape of the lines to the left or the right depending on the wind (tail or head wind). If you're not on a line directly, which is probable in many case (not in my example) you should gave the same form that the line the closest to you have.

Basically if you're in the middle your own wind correction line should be in the center of those lines until you get to the point at which the wind speed is the one you have. 

 

Then you go upward again until you cross the weight line or the point that is about that weight. 

 

And then go all the way horizontally to the right to get the fuel figures for that combination. 

 

So you see by using this chart that Distance increase fuel, tail wind reduce it while head wind increases it, and weight also increase it proportionaly to the distance you have to cover. 

 

Should be something like this for my example

 

Aurelien Vandoorine

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