31-07-2021, 07:25 PM
Years ago I had a large and ancient Alvis. It had a reserve tank. So, when driving home from a party in the early hours and the engine started to misfire a quick flick of a switch in the cockpit restored fuel supply. There were two gallons in reserve. Thirty miles later another quick flick revealed that the switch had already been flicked. I imagine wing tanks have similar properties.
Alan Fairless