A Boeing 'Stearman' PT-17 (Model 75) owned by Warren Walkinshaw, Argusville, ND.
Photo by Bob Nelson.
The 'Kaydet' was a conventional biplane of rugged construction with large, fixed tailwheel undercarriage, and accommodation for the student and instructor in open cockpits in tandem. The radial engine was usually uncowled. -wiki Cockpit closeup