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File:12- Foot Free-Flight Tunnel (5277460737).jpg

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Description: 12-Foot Free-Flight Tunnel under construction: The free-flight wind tunnel is a steel sphere 60 feet in diameter and can be supplied with air compressed up to two or more atmospheres in which the operators will work. A decompression chamber is provided so that the operators can return gradually to normal atmospheric pressure. The tunnel itself, which is mounted on a steel framework inside the sphere, has a test section diameter of 12 feet and is about 30 feet long. The drive consists of a 600-horsepower electric motor turning a 15-1/2 foot diameter propeller. The whole apparatus is mounted on bearings so that the tunnel can be tilted through a wide range of angles to correspond to the angle of glide of the model airplane.

UID: SPD-NIX-EL-2001-0015 3
Source 12- Foot Free-Flight Tunnel
Author NASA on The Commons
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(Reusing this file)		 NASA on The Commons @ Flickr Commons

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This image was originally posted to Flickr by NASA on The Commons at https://flickr.com/photos/44494372@N05/5277460737. It was reviewed on 16 September 2016 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

16 September 2016

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current00:40, 16 September 2016Thumbnail for version as of 00:40, 16 September 20161,536 × 1,304 (172 KB)Vanished Account Byeznhpyxeuztibuo (talk | contribs)Transferred from Flickr via Flickr2Commons

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