When 23-year-old Igor Sikorsky proposed building the world’s biggest airplane and the first four-engine airplane, he was laughed at. However, in 1913, he proved his detractors all wrong, and had taken his first step toward becoming an aviation icon. The drawing we are offering is directly from the Sikorsky Archives and was initialed by Igor himself.
Download it here.
Free: Original Drawing of Sikorsky “Le Grand”
