Sikorsky Prize – a prize for human powered helicopters named in his honor
Text from Wikipedia, available under CC BY-SA 4.0.
- #wikipedia
- #event
Sikorsky Prize – a prize for human powered helicopters named in his honor
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-17 from Wikipedia. The archived copy is preserved so this citation survives link rot.