Every plane I have had up until now I could get to the fuel line to the carb and also the vent line to the muffler. New ARF, Phoenix Decathlon, has the engine cowled in completely prohibiting access to either of these lines. The tank makes provision for a third "Fill" line. How does this work?? How do you know when the tank is full??? Could I use a Great Planes/Dubro fueler "dot"??? Where would I mount it??

Any help would be appreciated.

Phil
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