Midwest LSA Expo 2023 Bristell Flights

The Fifteenth Annual Midwest LSA Expo, held September 7-9 at Mount Vernon Outland Airport in central Illinois, featured the return of Bristell Aircraft among a wide variety of other light sport aircraft brands. Bristell Midwest was represented by Piston Aviation with two Bristell 912 LSA aircraft used daily for flight training out of Creve Coeur Airport in St. Louis. Piston Aviation staff, including owners Joe and Meghen Ord and several CFIs who know the aircraft well, were available during the event to meet with visitors and provide demo flights with potential customers.
The Bristell exhibit is featured below. CFIs Josh and Brant fly their signature two-ship takeoff and recovery technique used to reduce their pattern time during the peak traffic hours and give their riders a fantastic view from the bubble canopy.
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I have a question that might be dumb but, when flying do you have to fly a strict straight path or can you say, go through some mountains somewhat low or pass by a beach? Just curious :)