Browse Items (2 total)

'The Winged-S � II', The New Yorker

Tags: 1940; 1940-8-17; 1940s; Aeronautics and Aerospace; Aviation; Engineering; Hellman, Geoffrey T.; Igor Sikorsky; United Aircraft

'The Winged-S � I', The New Yorker

Tags: 1940; 1940-8-10; 1940s; Aeronautics and Aerospace; Aviation; Engineering; Hellman, Geoffrey T.; Igor Sikorsky; United Aircraft