COMMENTARY 8 President's Position 22 Waypoints 24 Proficient Pilot 26 Flying Life 28 Safety Spotlight 30 For the Record 42 DEPARTMENTS 4 What's Online 18 Letters 109 Advertiser Index 110 Tips from PIC 112 Pilots SECTIONS AOPA ACTION 14 Top Stories BRIEFING 33 Milestones 36 AOPA Sweepstakes 37 AOPA Events 38 AOPA Media 39 You Can Fly 40 Airports 42 Postcards 44 Events 46 Products 49 First Look 50 People 52 News 50 88 2 AOPA PILOT / September 2021 53 Test Pilot 54 Musings RUDDER & WRENCH 88 Technology 91 Flying Smart 93 Savvy Maintenance 96 On Instruments 99 Engine Technology 102 Never Again FLY WITH AOPA 104 AOPA Government Affairs 106 AOPA Air Safety Institute 108 Products and Services LAND OF OZ Exploring the natural wonders around Bentonville, Arkansas. Learn more in " Land of Oz, " which begins on p. 58. Photography by Mike Fizer Contact us at 800-USA-AOPA (872-2672)