calculated vs totalizer on fms
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Join Date: Jun 2006
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calculated vs totalizer on fms
B777 FMS maybe others too.... what are the possible causes of totalizer fuel being less (or even more) than the calculated on progg page 2 . no leak of course .
thanks in advance
thanks in advance
Join Date: Feb 2010
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If i remember correctly, it has to do with temperature changes. I think on the 767 sometimes u can see more than a 1- 1.5 tonnes of difference. They then come back together after. sometimes it takes few hours.
I think what the guys usually do was to set the the fuel to the lesser of the 2 on the fms. then clear the entry once they are almost even.
I don't fly the 777 but it shud be more or less the same sort of thing i, guessing.
I think what the guys usually do was to set the the fuel to the lesser of the 2 on the fms. then clear the entry once they are almost even.
I don't fly the 777 but it shud be more or less the same sort of thing i, guessing.
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calculated vs totalizer on fms
The totalizer on FMS is from FQI, it shows the fuel computer measures the total fuel QTY in fuel tanks, the caculated on FMS is from the total fuel which you key in FMS subtract (fuel flow * Time) !
NOTE : Fuel flow data may come from HMU
NOTE : Fuel flow data may come from HMU
