Then...
It seems to me that there must be components in the fuel system on a Chipmunk that mitigate the risk of air being drawn into the fuel system due to one tank emptying before the other.
Either that or the design somehow manages to position the fuel selector and inlet to the fuel components of the engine below the outlets from the tanks.
Rather than endless, unproductive PPRuNe speculation, the answer can be given by someone with first-hand knowledge of the fuel system 'plumbing' and components on a Chipmunk.
Last edited by Lead Balloon; 3rd Dec 2023 at 09:34.