> many people are flying "old" airplanes that have AoA sensors and IFR-certified glass panels and backups Yes and no. They're out there, but they aren't as com

> many people are flying "old" airplanes that have AoA sensors and IFR-certified glass panels and backups Yes and no. They're out there, but they aren't as common as you'd think or hope. AoA in particular is rare. There's an awful lot of planes that are still running GNS430 or GNS530s (probably more than any other single setup), and more than a few with the original nav/comm equipment like the KX170B. A real glass panel (something like the G1000 or G3X) is really rare in an old plane. Maybe 5-10%?