ORIGINAL: rorywquin
DRGSI
220 flights @ say 12min (generous) per flight equates to roughly 44 hours run time. Has it only been serviced once? You post seemed to imply that your turbine has had more than one service & I was wondering.
Dr GSI doesn't have a big car. He keeps putting his Bandit on the roof of his car so the turbine blades keep turning and dust goes into the turbine.

The other thing is he fly only twice per outing cause it is so hot here in Riyadh. If we count the travel time that is 120min per trip plus twenty minutes flying and 30 seconds taxing, that adds up to 150min and 30 seconds per trip. Multiply that by 110 trips .... I can't get that right so I will leave it to you mr MATH.............LOL