tony roberts wrote:
I believe that it is a huge mistake to teaach student pilots that at a
given power setting their aircraft will average x gallons per hour.

so what would you teach them? If you dipped before and after and
noticed the fuel consumption all over the place, they still rent and
can only do it by the book plus a safety margin. That safety margin
can't be 50% like your 8 to 12 gph otherwise we'd never get a XC
in as we'd always be stopping for fuel every 5nm. The only
way around this is to have reliable and accurate gauges. I still
don't know why it is that difficult to make these.

Gerald