Tag: St. Petersburg (Leningrad) designer –

The Russian Knight became the world’s first all-wood four-engine biplane, and its successor Ilya Muromets became the world’s first serial four-engine aircraft. ▫️ Sikorsky’s inventions laid the foundation for a new direction in aviation and became the progenitors for modern heavy bombers, transporters and passenger airliners. 🔹 @mod_russia