Bug? Fuel Burn.
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Hi all.
Is the aircraft consuming fuel on the ground while connected to external power? Is this expected behavior? (XBOX Series X - MSFS 2020).
Alan / From Brazil
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Do you possibly have a fuel leak failure? Or are you possibly looking at fuel transferring via gravity from the auxiliary tanks to the main tanks?
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Do you possibly have a fuel leak failure? Or are you possibly looking at fuel transferring via gravity from the auxiliary tanks to the main tanks?
@Black-Square said in Bug? Fuel Burn.:
Do you possibly have a fuel leak failure? Or are you possibly looking at fuel transferring via gravity from the auxiliary tanks to the main tanks?
There are no active failures. Right now, for example, it didn't happen. It seems intermittent. Could you explain when exactly this gravity-based transfer between tanks is supposed to occur?
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@Black-Square said in Bug? Fuel Burn.:
Do you possibly have a fuel leak failure? Or are you possibly looking at fuel transferring via gravity from the auxiliary tanks to the main tanks?
There are no active failures. Right now, for example, it didn't happen. It seems intermittent. Could you explain when exactly this gravity-based transfer between tanks is supposed to occur?
@alanfernandes My Starship knowledge is a little rusty, but I think it should happen at all times.
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This excerpt from the Starship Pilot's Operating Manual, page 3-22, seems to indicate that the gravity transfer is always active, unless of course the aft tank is full, in which case transfer would occur once fuel started being drawn from the aft tank.
This is somewhat similar to the fueling on the Learjet 35A, where you only refuel into the tip tanks, and the tip tanks gravity feed into the wing tanks if room exists in those tanks.
Link to the POH on Bob Scherer's Starship Resources site: Starship Pilot's Operating Manual
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This excerpt from the Starship Pilot's Operating Manual, page 3-22, seems to indicate that the gravity transfer is always active, unless of course the aft tank is full, in which case transfer would occur once fuel started being drawn from the aft tank.
This is somewhat similar to the fueling on the Learjet 35A, where you only refuel into the tip tanks, and the tip tanks gravity feed into the wing tanks if room exists in those tanks.
Link to the POH on Bob Scherer's Starship Resources site: Starship Pilot's Operating Manual
@MarkS said in Bug? Fuel Burn.:
This excerpt from the Starship Pilot's Operating Manual, page 3-22, seems to indicate that the gravity transfer is always active, unless of course the aft tank is full, in which case transfer would occur once fuel started being drawn from the aft tank.
This is somewhat similar to the fueling on the Learjet 35A, where you only refuel into the tip tanks, and the tip tanks gravity feed into the wing tanks if room exists in those tanks.
Link to the POH on Bob Scherer's Starship Resources site: Starship Pilot's Operating Manual
From what I've gathered from the manual, the aircraft's fuel system consists of four tanks: a main tank set (divided into forward and aft compartments) and one auxiliary tank in each wing. On the ground, refueling must prioritize the main tanks over the auxiliary ones, observing an alternating pattern between the wings in increments of no more than 100 gallons to maintain aircraft balance. Although fuel flows by gravity from the forward to the aft compartment within the main system during refueling, there is no gravity transfer between the auxiliary and main tanks. In flight, this transfer relies exclusively on jet pumps operated by engine motive flow, which renders the fuel in the auxiliary tanks unusable should the pump system fail. Each system has independent filler ports, requiring the main and auxiliary tank caps to be handled separately.
