The Lioré et Olivier LéO 21 was a 1920s French biplane airliner and later military transport based on the earlier LéO 20 night bomber. == Development == First flown in August 1929 the LéO 21 was a twin-engined biplane airliner with a fixed tailskid landing gear.
The Lioré et Olivier LéO 21 was a 1920s French biplane airliner and later military transport based on the earlier LéO 20 night bomber. == Development == First flown in August 1929 the LéO 21 was a twin-engined biplane airliner with a fixed tailskid landing gear.
Source: Wikipedia "Lioré et Olivier LeO 21" · CC BY-SA 4.0
Share this article: X · Bluesky