Airfix 1/72 Avro 504K - Vintage Classics Military Aircraft model kit. Expected Arrival: 3rd Quarter 2026 History One of the most important early British aircraft of the 20th century, the Avro 504 series was the most heavily produced aircraft to serve in a military capacity during the First World War, with the ‘K’ variant becoming the standard training aircraft for the Royal Air Force. Many would remain in service well into the 1930s, with the type enjoying an impressive 28 year service career. What's in the Box? Plastic model kit Instruction sheet Paint Guide Decal Sheet