Surely we all flew on a company minimum fixed reserve at flight school. My company used 45 minutes. We prepared a nav log beforehand as normal in CPL cross country training. A-B-C-A in a tomahawk (he says crossing himself)
the nav log showed that that you did due diligence to the requirements using forecast *sic winds and 95knots cruise. The strips at B and C were remote at times and had no avgas. We planned an overhead join and touch and go at them then onward. Weather and notams and a weight and balance showing that A-B-C-A fuel plus 45 minutes and you and instructor into the underwhelming tomahawk meant that you were 45pounds overweight. Oh well change your weights to standard weight and you were good to go.
4 hours later calling up for joining instructions back into A and the tower says there are 6 in the pattern..hold south of the local town and call back in 5 minutes (of course it’s a fine Sunday afternoon and all the recreational pilots are out flying)
so boom..you’re landing with 40 minutes of fuel..naughty naughty..?
no ...your instructor says ‘there you go..that’s why we take 45 minutes extra fuel’