Before revision: Patty Wagstaff show at JeffCo Airport in Denver, Colorado, June 2008 Aerobatics is the practice of flying maneuvers involving aircraft attitudes that are not used in normal flight .
After revision: Patty Wagstaff show at JeffCo Airport in Denver, Colorado, June 2008 Aerobatics is the practice of flying maneuvers involving aircraft attitudes that are not used in conventional passenger-carrying flights .