This is something that came to light in a community stream around the time of the 146 V2 release when one of the streamers accidently switched off one of the fuel pumps in flight. Up until that point, I don't think anyone has ever tried turning a fuel pump off in flight! And now, just like buses... 😉

The logic in the real 146 is that if a fuel pump is switched off, the standby pumps will continue to supply fuel to the engines. There is one standby pump in each wing supplying the inner feed tanks, and they are powered by the yellow hydraulic system.

If the standby pumps fail, then gravity will keep the feedtanks full until approx 2,000KG of fuel remains per side.

This isn't how its currently working in our simulation of the 146 but we do have this noted as an area to improve in the next update. The reason you are likely seeing differences in the engine shutdown logic is due to speed and altitude. At high altitudes, the engines are more reliant of fuel flow, so if one of the fuel pumps is switched off at high altitude it will likely lead to an engine shutdown. At lower altitudes, switching off the fuel pump will likely not effect the engine.

Mark - Just Flight

@Thor_999 said in Buxton/Peak Forest Extension:

I've just bought the Buxton/Peak Forest extension. When i selected a quickdrive route from Tunstead Quarry to Leicester, there is a problem with the wagons that have been placed in the sidings at Tunstead. They block the tunnel mouth so that you cannot leave the sidings where you start this quickdrive journey.

Sounds like what I saw and mentioned up thread about the same starting point. I think you can delete the offending wagons via the editor as a workaround.