Caproni Ca.21

Single Piston

The Caproni Ca.21 is a vintage Italian two-seat biplane trainer from the early 1930s, representing the classic interwar era of aviation when fabric-covered biplanes dominated flight schools across Europe. Designed by the storied Caproni company—best known for its pioneering multi-engine bombers of the First World War—the Ca.21 was a straightforward, docile trainer powered by a single radial piston engine, typically a de Havilland Gipsy or similar 100-horsepower unit. Its tandem open cockpits, fixed tailwheel undercarriage, and generous wing area made it forgiving for ab-initio students learning the fundamentals of stick-and-rudder flying. Though never produced in large numbers compared to contemporaries like the Tiger Moth or Stearman, the Ca.21 served Italian flying clubs and civilian schools through the 1930s, and a handful survived into the postwar years as nostalgic warbird curiosities. Today the type is exceedingly rare, with only a few airworthy examples preserved by collectors who value its place in Italian aviation heritage. SkyMeter has tracked 1 flights across 1 airframes and 1 operators, with distinct routes observed.