fuel temperatur
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At the moment, the fuel temperature isn't simulated to the same level of detail as some of the other aircraft systems, but it also isn't simply displaying the simulator's value. The F70/100 uses its own lightweight fuel temperature model, which takes into account factors such as ambient conditions and whether the aircraft is on the ground or in the air, with the temperatures changing gradually over time rather than instantaneously.
That said, it isn't intended to be a high-fidelity thermal simulation. It doesn't currently model all of the factors that influence real-world fuel temperatures, such as detailed wing heat transfer, fuel recirculation, engine heat input or the operational consequences of approaching the fuel freezing limit.
As a result, you shouldn't expect the indications to behave exactly as they would during a long high-altitude cruise, where crews would normally monitor fuel temperature against the applicable freezing limit.
We've had a look at the current implementation and there are a few areas where we could improve the realism without requiring a complete rewrite, including the left versus right temperature delta, so it's something we'll consider for a future update.
