Sikorsky S-69
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Manufacturers | Sikorsky Aircraft |
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First flight | July 26, 1973 |
Number built | 2 |
Date of Reg. | |
Date of Upd. | |
ID | 1774042 |
About Sikorsky S-69
The Sikorsky S-69 is an experimental co-axial compound helicopter developed by Sikorsky Aircraft as the demonstrator of the Advancing Blade Concept under US Army and NASA funding.