Hi all,

 

For the good of the order; Here is what I did on my fuel system.  I wanted to make sure I would be able to get fuel from the wing tanks under any condition so I installed two fuel pick-ups in each wing tank.  I have the normal ¼ “ pickup for transfer to the header tank via Facet pumps per the plans.

 

The other pick-up is a 3/8 “ line that goes to a L, R, Off valve in the center console.  From there it goes through a free-flow ball check valve then to a tee to pick up the fuel coming from the header tank.  The check valve eliminates any possibility of back flow from the header to the wings.  There is a Stock Lancair 3/8 fuel shut off valve on the header tank supply line to isolate it and make sure the fuel is drawn from the wing tanks until the header is intentionally turned on. 

 

From the T the line goes through to the gas collator, electric firewall mounted fuel pump, fuel flow transducer, engine driven fuel pump, and carburetor.

 

Normal operation is using wing tank fuel drawn to the engine with the engine driven fuel pump.  Boost pump is only used for take off and when the electric primer is activated with a momentary switch on the panel. 

 

Header tank is used for reserve by opening the valve above the Tee in the main supply line to the engine.  I do plan on installing an auto fuel transfer pump shut-off to avoid over filling the header tank.  From experience I can tell you it is no fun cleaning fuel stains from the belly aft of the header vent.  Not to mention the expense and safety issues.

 

Happy flying,