"Stable helicopter"....never thought I'd see THOSE two terms paired together... Wikipedia claims the test that is first had been in September 1939, while the very first free flight was at May 1941. http://en.wikipedia.org/wiki/Vought-Sikorsky_VS-300 ...
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- "Stable helicopter"....never thought I'd see THOSE two words paired together...
- Wikipedia says the first test flight was in September 1939, and the first free flight was in May 1941. http://en.wikipedia.org/wiki/Vought-Sikorsky_VS-300
- Vought-Sikorsky VS-300 : The Vought-Sikorsky VS-300 was a single-engine helicopter designed by Igor Sikorsky . It had a single three-blade rotor originally powered by a 75 horsepower (56 kW ) engine. The first "free" flight of the VS-300 was on 13 May 1940. While not the first successful single lifting rotor helicopter to fly, as the Yuriev/Cheremukhin TsAGI -1-EA machine was in the Soviet Union in 1931-32, the VS-300 was the first successful single lifting rotor helicopter in the United States and the first successful helicopter to use a single vertical tail rotor configuration for antitorque. With floats attached, it became the first practical amphibious helicopter . Image i Interesting: Igor Sikorsky | Amphibious helicopter | Sikorsky R-4 | Aircraft in fiction Parent commenter can toggle NSFW or delete . Will also delete on comment score of -1 or less. | FAQs | Mods | Magic Words
- Can you imagine, just back in the day just attempting to build something and having it work, that would just be incredible.
- They don't make hats like they used to!
- Define "first".... Read more comments