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This is the US Air Force's real flying saucer (video) [1]
['David Pescovitz']
Date: 2023-02-16
In the late 1950s, the US Air Force funded a secret project to develop a flying saucer. Avro Canada engineer John "Jack" Frost—the main mind behind the Avrocar—was deep into the "Coandă effect," a phenomenon in which fluid (including air) coming from an orifice stays close to the surrounding flat or curved surface, creating an area of lower pressure. For the VZ-9, the idea was that the Coandă effect would redirect the air under the vehicle to provide lift. Unfortunately, it didn't make the grade as a high-speed combat aircraft so the US Army picked up the project, hoping to be the basis of a new kind of helicopter. As evidenced by the video below, that didn't quite work out either. The project was cancelled in 1961…. or was it?!
image: Wikipedia/Public Domain
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[1] Url:
https://boingboing.net/2023/02/16/this-is-the-us-air-forces-real-flying-saucer-video.html
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