https://www.miamiflightacademy.com//wp-content/uploads/2014/11/MiamiFlightAcademy.png00Miami Flight Academyhttps://www.miamiflightacademy.com//wp-content/uploads/2014/11/MiamiFlightAcademy.pngMiami Flight Academy2018-05-03 15:15:152018-05-09 13:38:47The uncontrolled firing of the fuel/air charge in advance of normal spark ignition is known as