Having flown an X-air for about a year and accumulated 100 hours on it before I sold it, It is a 582 powered model, the costs are roughly as follows: Fuel burn is roughly 16 to 18 litres p/h = ?20.00 p/h 2 Stroke oil (semi-syn Shell) =?5.00 p/h Allow a fund for servicing/maintenance =?2.50 p/h Assoc...