Hello, 

I am flying the Premier 1A at the moment and sitting here at 41,000ft I am looking at my right fuel tank which seems to be draining away very quickly. Bith engines are showing the same fuel flow. I've either got a leak or the fuel logic is way off. I fly FSX:SE. As I don't usually fly this aircraft I am curious

I don't have the aircraft, but some basic questions:

Is fuel dumping modelled and if so can it select a specific tank?

Is the left fuel tank shut off so that both engines are being fed from the right tank?

Similarly is there a cross-feed valve activated?

Is there any fuel flow at all from the left tank?

I would have thought that such a jet would "should" have fuel feeding equally from both tanks to maintain balance, unlike the little BD-5 from Iris Simulations (which I have) and only uses one wing tank at a time so you have to keep switching from left to right and back to maintain balance..

Hope this helps. Good luck.

1 hour ago, HighBypass said:

I don't have the aircraft, but some basic questions:

Is fuel dumping modelled and if so can it select a specific tank?

Is the left fuel tank shut off so that both engines are being fed from the right tank?

Similarly is there a cross-feed valve activated?

Is there any fuel flow at all from the left tank?

I would have thought that such a jet would "should" have fuel feeding equally from both tanks to maintain balance, unlike the little BD-5 from Iris Simulations (which I have) and only uses one wing tank at a time so you have to keep switching from left to right and back to maintain balance..

Hope this helps. Good luck.

The real Premier has no fuel dump capability. Normally the left wing tank feeds the left engine, and the right wing tank feeds the right engine. There is a cross feed system to supply one engine from both tanks in case one engine fails.

I don’t own the simulated version, but it sounds like cross feed is active when it should not be.

This is common when you have loaded a plane where you can only use the left or right tank, but not both, then you load a plane that uses both tanks at the same time.  I find the best think to do before you start the flight is load the default Cessna 172 and set up everything properly with that.  Some basic planes also do not have an Avionics switch or a Alt/gen switch either.  With the Cessna you can turn on both tanks, turn on the avionics and the generator if needed.  Then you load the plane you want to fly and save the flight with everything setup the way you need for that plane. The funny thing, with the FSX /P3D default key assignments there are not set up for any of these functions so you have to load another plane and set them with that plane or assign a key or joystick button on the fly to do a particular function like change fuel tanks.

John Cottreau

4 hours ago, johncott said:

This is common when you have loaded a plane where you can only use the left or right tank, but not both, then you load a plane that uses both tanks at the same time.  I find the best think to do before you start the flight is load the default Cessna 172 and set up everything properly with that.  Some basic planes also do not have an Avionics switch or a Alt/gen switch either.  With the Cessna you can turn on both tanks, turn on the avionics and the generator if needed.  Then you load the plane you want to fly and save the flight with everything setup the way you need for that plane. The funny thing, with the FSX /P3D default key assignments there are not set up for any of these functions so you have to load another plane and set them with that plane or assign a key or joystick button on the fly to do a particular function like change fuel tanks.

John Cottreau

Think you may. E right there John my crossfeed was not active however i flew the tbm before which has an automatic tank switch over which is modelled could be residual issue ad i didnt reset the sim before swapping out to Premier