Intresting Time Calculation in Flight Plan :)

[HolePunch]

I have it, when selected flight level is above optimal flight level

[HolePunch]

Even if I have everything in one Flight Level - the calc. is not correct - started with 70 tons of fuel.
its not possible, that after 10 hours of flight only 12 or 13 tons are burned.

[Peter]

its clearly not coded properly. It starts out calculating correctly, but at some popint it will inevitably start going backwards and accuracy is lost.