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Posted

Hi, guys!

 

I noticed something is not right regarding the external fuel tanks: when I set the fuel tank selector to LH combat tanks or RH combat tanks, the engine is not getting any fuel even with the fuel boost pump on and when priming too. Any solution to this? Thanks

 

Cheers,

Vincent

Posted

If you are starting the aircraft from cold then use internal tanks.

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Posted

Fuel is forced to the carburetor by an engine driven pump at a normal operating pressure of 16-19 PSI. In addition, there is an electrically powered booster pump in each internal tank. The booster pumps prevent vapor lock at high altitudes, assure sufficient fuel supply under all flight conditions and, in case of engine driven pump failure, provide enough fuel to the carburetor for normal engine operation. The droppable tanks do not have a booster pump. However, a constant and controlled pressure of 5 lbs./sq.in. is maintained within the combat tanks by pressure obtained from a vacuum pump. This is in addition to the pressure obtained from the main engine fuel pump.

Posted

They should operate normal if you select them inflight. The engine must run in order to obtain fuel from externals. Start and takeoff with internal fuel, after airborne you can switch to external.

Posted

Always start and takeoff on the left internal tank. This tank has the return line on it, so you need to make some space in the tank if it's full.

  • 3 weeks later...
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