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# Fuel Percent Revisited

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Hi Folks.Further to Bill's reply to my original Fuel Percent post, my Fuel Stats gauge has these few lines of code. I will be expanding it to include all the tanks. This code is my starting point to show a list of the tanks in a window. This is just the Total Fuel Load to start with.Alas, the second String part returns a figure of 447. I expected to see 100 as all tanks are filled. The poundage figure is correct as that corresponds to the fuel loading. The a/c Fuel and payload window shows all tanks at 100% Could someone check and if possible explain the workings of the percent variable.Thanks.Here's the code:-%((A:FUEL TOTAL QUANTITY WEIGHT, lbs))%!08.2f!%((A:FUEL TOTAL QUANTITY WEIGHT, percent))%!03d!Cheers...Kenny

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It doesn't work the way you wrote it. You can not get a percent value as a return for the weight.The variables Bill posted in your other thread are the ones that return the percent values.The SDK covers what variables return what values.

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>Alas, the second String part returns a figure of 447. I>expected to see 100 as all tanks are filled. The poundage>figure is correct as that corresponds to the fuel loading. The>a/c Fuel and payload window shows all tanks at 100% If you want to display the current total fuel on board as a percentage of the total capacity, you will need to calculate it yourself, as FS only has token variables for individual tank percentages.%(100 (A:FUEL TOTAL QUANTITY, gallons) (A:FUEL TOTAL CAPACITY,gallons) / *)%!03d%!For example, if the total fuel capacity of your a/c is 10,000 gallons, and the total fuel quantity (fuel on board) is currently 5,000 gallons, then...(5,000 / 10,000) * 100 = 50%

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Folks, thanks for the input.Ed, I am still at the very basic stages of XML and the SDK is still a bit mysterious to me. I can grasp the Key Events and the Variables not too badly but converting them into XML is where I need the help.Bill, my display is intended to work like a PFD where it will show various windows toggled by switches. This is perhaps not the best way to work it but it's where I am right now in my learning curve. I would like a pop up window showing, at the top, the total fuel in pounds and percentage. Then a series of Data lines down the display showing the load and percentage of the various tanks. If I understand your reply correctly, will the Token Variables that you posted earlier work okay for the individual tanks without the calculation that's needed for the total loading?Cheers...Kenny

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That is correct, Kenny. All the individual tanks have token variables to display either their current fuel level as "gallons" (or liters), and as a percentage.Use the SDK to determine the precise name and unit for each token variable.The basic template for token variables is:(A:TokenVarName,units)

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Roger Bill, thanks for that.However, looking at the Token Vars. doc. it looks like I will be unable to display the fuel weight for each tank in pounds. The variables are like you say in gallons or percent. There is a parameter for converting gallons to pounds I see but at present level I am unable to make it work.I will change my readouts to gallons and percentage figures.Edited a few mins. later....Bill, this is working out fine. I am getting the readouts as expected and corresponding to the a/c fuel figures. I assume the readouts will change as the a/c uses fuel. Also, I am making a new section for each tank. Is that the best way? I have not as yet made a gauge using large amounts of code, although I see that the GPS sample is very complex with large sections of code. Regards...Kenny

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