Hi All. I'm doing the revision exercise for ETP/PNR calculations on page 4.50 of the current text. In question 2 it specifies 67 gallons of [b]flight fuel[/b] at take off, but in the workings for the answer the full 67 gallons are included in calculating the PNR rather than removing the 15% variable reserve first. I'm having a bit of trouble understanding why you wouldn't first remove the 15% VR prior to calculating the PNR. Should all questions in the CASA exam that specify [b]flight fuel[/b] be considered to have the VR already removed?
Yes, the accepted definition of 'flight fuel' is the fuel that will actually be burned during the flight. If a question gives you the flight fuel, all reserves and holding requirements have already been removed. It's a matter of carefully reading the question. Flight fuel is the expected actual burn-off during the flight. Minimum fuel required at take-off is the flight fuel plus any reserves or holding fuel.
Cheers
Bob