Originally Posted by
Gertrude the Wombat
That's what the scales at the flying club are for.
As was noted most flying clubs do not have scales. This issue recently came up at the flying school where I occasionally teach at. At my suggestion they decided to adopt the Transport Canada direction for commercial operators of small aircraft.
When using passenger volunteered weights the weight used for aircraft weight and balance calculations the weight shall be increased by 10 lbs and then a further clothing allowance of 8 lbs (Summer) or 14 lbs (Winter) shall be added.
Renter pilots must complete a full weight and balance calculation prior to each flight and use the above criteria for the calculations.