File:8-Foot High Speed Tunnel DVIDS739913.jpg
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Description8-Foot High Speed Tunnel DVIDS739913.jpg |
English: Control panel below the test section of the 8-Foot High Speed Tunnel (8-Foot HST). Authorized July 17, 1933, construction of the 8-Foot HST was paid for with funds from the Federal Public Works Administration. Manly Hood and Russell Robinson designed the unusual facility which could produce a 500 mph wind stream across an 8-Foot test section. The concrete shell was not part of the original design. Like most projects funded through New Deal programs, the PWA restricted the amount of money which could be spent on materials. The majority of funds were supposed to be expended on labor. Though originally, Hood and Robinson had planned a welded steel pressure vessel around the test section, PWA officials proposed the idea of concrete. This picture shows the test section inside the igloo-like structure with walls of 1-foot thick reinforced concrete. The thick walls were needed "because of the Bernoulli effect, [which meant that] the text chamber had to withstand powerful, inwardly directed pressure. Operating personnel located inside the igloo were subjected to pressures equivalent to 10,000-foot altitude and had to wear oxygen masks and enter through airlocks. A heat exchanger removed the large quantities of heat generated by the big fan.
NASA Identifier: L11851 |
Date | |
Source | https://www.dvidshub.net/image/739913 |
Author | Glenn Research Center |
Location InfoField | WASHINGTON, DC, US |
Posted InfoField | 18 October 2012, 01:17 |
DVIDS ID InfoField | 739913 |
Archive link InfoField | archive copy at the Wayback Machine |
Licensing[edit]
Public domainPublic domainfalsefalse |
This image is a work of a U.S. military or Department of Defense employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain in the United States.
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current | 08:46, 14 April 2015 | 1,536 × 1,320 (250 KB) | Fæ (talk | contribs) | == {{int:filedesc}} == {{milim | description = {{en|1=Control panel below the test section of the 8-Foot High Speed Tunnel (8-Foot HST). Authorized July 17, 1933, construction of the 8-Foot HST was paid for with funds from the Federal Public Works Admi... |
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Author | NASA, Courtesy Photo |
---|---|
Headline | 8-Foot High Speed Tunnel |
Image title | Control panel below the test section of the 8-Foot High Speed Tunnel (8-Foot HST). Authorized July 17, 1933, construction of the 8-Foot HST was paid for with funds from the Federal Public Works Administration. Manly Hood and Russell Robinson designed the unusual facility which could produce a 500 mph wind stream across an 8-Foot test section. The concrete shell was not part of the original design. Like most projects funded through New Deal programs, the PWA restricted the amount of money which could be spent on materials. The majority of funds were supposed to be expended on labor. Though originally, Hood and Robinson had planned a welded steel pressure vessel around the test section, PWA officials proposed the idea of concrete. This picture shows the test section inside the igloo-like structure with walls of 1-foot thick reinforced concrete. The thick walls were needed "because of the Bernoulli effect, [which meant that] the text chamber had to withstand powerful, inwardly directed pressure. Operating personnel located inside the igloo were subjected to pressures equivalent to 10,000-foot altitude and had to wear oxygen masks and enter through airlocks. A heat exchanger removed the large quantities of heat generated by the big fan. NASA Identifier: L11851 |
City shown | Washington |
Credit/Provider | U.S. Civilian |
Source | Digital |
Copyright holder | Public Domain |
Keywords |
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Province or state shown | D.C. |
Code for country shown | US |
Country shown | US |
Original transmission location code | L11851 |