Avro 504

Immagine: Wikimedia Commons

The Avro 504 trainer, introduced in 1913, became legendary within aviation history and established pattern standards for training aircraft development. Two crew operated this 9-meter aircraft with 11-meter span, powered by a single engine reaching 152.9 km/h, serving as trainer, fighter, and bomber across the Great War. Its versatility and longevity became proverbial.