This discussion has turned out to be quite interesting and has reaffirmed my original opinion that for something quite important there is only a very vague answer for, both A/C types in fact. I assumed, perhaps naively that a dipstick for a cessna would be accurate:
- Relying on fuel uplift records of a club A/C is potentially silly, mistakes are made and there are many unknowns.
- Why are dipsticks for Cessnas available but not for PA28 - there must be a reason.
- There is no way of knowing how much is in the tank unless empty, tabs or full.