The Kinner engine is underpowered for the airframe and very unreliable, especially now that the supply of parts for overhaul have dried up.
The accident rates in WWII were so bad the aircraft was retired when other trainers were available in volume.
They are a very, very cool looking airplane that flies much worse than it looks. They should stay on the ground in a museum.
I will not fly in one to save my soul. Harrison Ford should have stayed away too.
I read the same thing you stated about the plane. Back in the 1950’s a close friend and I considered buying one but did not.(It was more a pipe dream than an actual potential buyer seller deal.)
Agree, my Father in law started in Stearman’s. If he had learned on PT-22s he probably would have never survived to lead the entire 8AF on several missions dedicated to the Urban Renewal of the 3d Reich. Lufwaffe Air Defense was no match for the PT-22.