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FSX Making a wobble pump (manual fuel pump)

I am trying to make a wobble pump for my aircraft, but it seems like default K:MANUAL_FUEL_PRESSURE_PUMP event make it so the pressure climbs to 10 psi, then drop back, while I am trying to have the pump raise pressure by 2 psi with each stroke and it should stay there.

I tried setting A:GENERAL ENG FUEL PRESSURE:1, but it does not seem to work despite documentation saying its a settable variable.

Is there a way to control fuel pressure through variables?

This is for FSX btw.
 

tgibson

Resource contributor
Why would it stay at 2 psi? As fuel was used the pressure would drop.

If you don't like the default behavior you can code your own instead, using custom fuel pressure gauges responding to your custom variables.
 
Why would it stay at 2 psi? As fuel was used the pressure would drop.

If you don't like the default behavior you can code your own instead, using custom fuel pressure gauges responding to your custom variables.
The idea is for it to keep pressure until the engine starts, then it will drop, ofc.


I am asking if there is a way to control innate variables. If the only way is making my own gauge with "fake" pressure then I would rather not (I like the specific pressure gauge from .gau more than I care for the wobble pump function).
 

DragonflightDesign

Resource contributor
Tom is right - you'll need to roll your own system. The default max value is 10psi.

[Edit] Sorry - default is 12psi. The sim appears to be modelling a Stromberg-type carburetor system.
 
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