Aircraft’s have two wings and a fuel tank in each of them. Some aircraft are adopted for long duration flights and may have more than two fuel tanks. Having one fuel flow indicator for one tank is easy to understand but ever wonder how a single fuel flow indicator can provide information regarding fuel levels in two or more tanks? Read on.

In days gone by, an aircraft fuel flow indicator was basically an adaption of the vehicle fuel flow indicator. It had an analog system (i.e. mechanical) via a micro float valve and a tiny bucket wheel. As the fuel flowed, the bu ... Read more »