I have a YA F-16 and it already had the fuel tanks (along with an 8 oz hopper) connected in parallel. That is, the tubing for the vents were connected together and the feed lines are all connected together. The UAT connects to the T-ed off feed line. Does this work well? I thought if tanks were in parallel you could have one tank sucking air when empty, and this could potentially cause more air bubbles.

I was under the impression the tanks should be connected in series, so they are constantly being siphoned as one larger tank. Would a series setup reduce air bubbles?

Please educate me. Right now I am trying to find out why my turbine shut down mid air. I got a "speed low" message, and JC said it is most likely an air bubble. So I am trying to replumb the system to mitigate this from happening again...

Jim