Mxsmanic wrote in
:

Robert M. Gary writes:

Because you need to find the fuel. Some planes have a "both" selector
but not all are set up where that would work. Also, for twins you
need to be able to transfer the fuel out of the tank from the dead
engine into the good engine since the good engine burns more fuel
when its working by itself.

Okay, but that's an exceptional situation. For a normal flight, do
you have to change the fuel settings? I know Lindbergh did, but that
was an unusual aircraft.


as far as left/right/both/off, normaly you set it on both and forget it.
some planes have left/right/off, I alternate every 15 min.

the more complex adjusting of the fuel comes from the mixture control.