I worked mine out to be about R8 more per hour - fuel is only half the cost per hour
If you were to workout actual costs per hour you might not fly
On a 3 axis roughly:
Fuel R100
oil R10
Hangerage you would need to divide by number hrs flown per month say 15hrs if you doing well R33 /hr more if you fly less per month
if you have insurance same as above R1k / 15 = R66.50 again more if less hrs
Service & mainatanance still have to work this out but if you take 300hr overhaul into account and service properly every 25hrs it could be close to another R100/hr ??
Oops dont let the wife know --- we at about R300 hour??
So cut insurance & do you own maintanance you might get down to R200 an hour - this does not take into acount medicals, license fees etc
Some have bought their aeries through financial institutuions - another R100 - R200 per hour
One consolation - the more you fly the cheaper it is if you take fixed costs into account (hangerage, insurance etc)