https://www.miamiflightacademy.com//wp-content/uploads/2014/11/MiamiFlightAcademy.png00Miami Flight Academyhttps://www.miamiflightacademy.com//wp-content/uploads/2014/11/MiamiFlightAcademy.pngMiami Flight Academy2018-05-31 15:56:082018-05-31 15:56:08The uncontrolled firing of the fuel/air charge in advance of normal spark ignition is known as