Heinkel HD 17

Εικόνα: Wikimedia Commons

The HD 17 represented a German-Swiss reconnaissance design variant from 1924, optimised for high speed relative to its class. At just 9.5 metres long, this single-engine aircraft achieved an impressive 240 km/h—likely reflecting a focus on speed for tactical reconnaissance and evasion. Its compact proportions suggest emphasis on agility over endurance.