{"id":40674,"date":"2015-12-09T15:51:40","date_gmt":"2015-12-09T20:51:40","guid":{"rendered":"https:\/\/www.nasa.gov\/?migration=converted-node-375198"},"modified":"2023-11-08T10:30:06","modified_gmt":"2023-11-08T15:30:06","slug":"aerosciences-evaluation-and-test-capabilities-aetc-portfolio-subsonic-facilities","status":"publish","type":"post","link":"https:\/\/www.nasa.gov\/directorates\/armd\/armd-aetc\/aerosciences-evaluation-and-test-capabilities-aetc-portfolio-subsonic-facilities\/","title":{"rendered":"AETC Subsonic Facilities"},"content":{"rendered":"<div id=\"\" class=\"padding-top-5 padding-bottom-3 width-full maxw-full hds-module hds-module-full wp-block-nasa-blocks-article-intro\"><div class=\"width-full maxw-full article-header\"><div class=\"margin-bottom-2 width-full maxw-full\"><p class=\"label carbon-60 margin-0 margin-bottom-3 padding-0\">3 min read<\/p><h1 class=\"display-48 margin-bottom-2\">AETC Subsonic Facilities<\/h1><\/div><\/div><\/div>\n\n<div id=\"\" class=\"hds-media hds-module wp-block-image\"><div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\"><div class=\"hds-media-wrapper margin-left-auto margin-right-auto\"><figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-cover \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/hwb_oil_visualization_larc_2013.jpg\"><img fetchpriority=\"high\" decoding=\"async\" width=\"2048\" height=\"1365\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/hwb_oil_visualization_larc_2013.jpg?w=2048\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"Fluorescent oil on a model of a futuristic hybrid wing body during tests in the14 by-22-Foot Subsonic Wind Tunnel.\" style=\"transform: scale(1); transform-origin: 8% 51%; object-position: 8% 51%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/hwb_oil_visualization_larc_2013.jpg 4752w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/hwb_oil_visualization_larc_2013.jpg?resize=300,200 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/hwb_oil_visualization_larc_2013.jpg?resize=768,512 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/hwb_oil_visualization_larc_2013.jpg?resize=1024,683 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/hwb_oil_visualization_larc_2013.jpg?resize=1536,1024 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/hwb_oil_visualization_larc_2013.jpg?resize=2048,1365 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/hwb_oil_visualization_larc_2013.jpg?resize=400,267 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/hwb_oil_visualization_larc_2013.jpg?resize=600,400 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/hwb_oil_visualization_larc_2013.jpg?resize=900,600 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/hwb_oil_visualization_larc_2013.jpg?resize=1200,800 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/hwb_oil_visualization_larc_2013.jpg?resize=2000,1333 2000w\" sizes=\"(max-width: 2048px) 100vw, 2048px\" loading=\"eager\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">Researchers at NASA’s Langley Research Center in Hampton, Va., use all sorts of tools and techniques to learn more during the development of aircraft and spacecraft designs. In this photo, engineers led by researcher Greg Gatlin have sprayed fluorescent oil on a 5.8 percent scale model of a futuristic hybrid wing body during tests in the 14 by-22-Foot Subsonic Wind Tunnel. The oil helps researchers “see” the flow patterns when air passes over and around the model. Those patterns are important in determining crucial aircraft characteristics such as lift and drag.<\/div><div class=\"hds-credits\">NASA Langley \/ Preston Martin<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>9- by 15-Foot Low-Speed Wind Tunnel<\/strong><\/h2>\n\n\n\n<p>The 9- by 15-Foot Low-Speed Wind Tunnel at GRC has nationally recognized capabilities to evaluate the aerodynamic performance and acoustic characteristics of fans, nozzles, inlets, and propellers. The tunnel can simulate takeoff, approach, and landing in a continuous subsonic flow wind tunnel environment including the investigation of hot gas re-ingestion of short takeoff and vertical landing (STOVL) concepts. The acoustically treated test section and microphones linked to a dynamic data system allow state-of-the-art acoustic measurements to frequencies as low as 250 Hz for research in reducing aircraft noise. Recent programs supported in this facility include the High-Speed Civil Transport, the Advanced Tactical Fighter, as well as the General Electric Aircraft Engines (GEAE) next-generation (GEnx) engine.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.nasa.gov\/directorates\/armd\/aetc\/9-by-15-foot-low-speed-wind-tunnel-facility\/\" data-type=\"topic\" data-id=\"280910\">Read More<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>14- by 22-Foot Subsonic Tunnel<\/strong><\/h2>\n\n\n\n<p>The 14- by 22-Foot Subsonic Tunnel at LaRC typically performs conventional performance testing for fixed-wing and rotorcraft configurations over a wide range of takeoff, landing, cruise, and high angle-of-attack conditions. However, this versatile facility can easily be reconfigured for acoustic, tethered free flight, rotorcraft, and forced oscillation (dynamic stability). The 14\u00d722 also has the flexibility to test in either closed (walls, ceiling, and floor) or open (floor only) test section configurations. The maximum speed in the closed test section is 235 mph and 200 mph in the open test section. In 2001, the main drive was replaced with a 12,000 hp solid state converter with synchronous motor. Recent upgrades to the facility includes new acoustic microphone traverse systems on both the ceiling and floor, as well as hot jet engine simulator using gaseous propane. Major clients include the Department of Defense and aircraft manufacturers such as Boeing, Lockheed Martin, and Northrop Grumman.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.nasa.gov\/directorates\/armd\/14-by-22-foot-subsonic-tunnel\/\" data-type=\"topic\" data-id=\"281519\">Read More<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Icing Research Tunnel<\/strong><\/h2>\n\n\n\n<p>While there are numerous wind tunnels worldwide, the Icing Research Tunnel (IRT) is a rare and unusual facility located at GRC. Currently, the IRT is the U.S.\u2019s largest refrigerated wind tunnel, devoted to investigating the myriad issues of aircraft icing. The tunnel simulates natural icing conditions to test the effects of in-flight icing on various aircraft components and scale models. The goal of the IRT is to replicate the Federal Aviation Administration (FAA) aircraft icing certification standards contained in the Federal Aviation Regulation (FAR) Part 25, appendix C. These tests reflect NASA\u2019s goals of assuring operational safety and advancement of critical aeronautics technologies to provide safer air transportation.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.nasa.gov\/directorates\/armd\/aetc\/icing-research-tunnel\/\" data-type=\"topic\" data-id=\"290021\">Read More<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>20-Foot Vertical Spin Tunnel<\/strong><\/h2>\n\n\n\n<p>Maneuvering aircraft may encounter a dangerous condition known as spin, caused by a sudden loss of lift over wings or control surfaces. NASA\u2019s 20-Foot Vertical Spin Tunnel (VST) is the only operational tunnel of its kind in the Western Hemisphere that conducts free-spin research using dynamically scaled, free-flying models. The VST is a closedthroat, annular-return facility that operates at nominal atmospheric conditions, with velocities that can be rapidly adjustable up to 85 ft per sec.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.nasa.gov\/directorates\/armd\/aetc\/20-foot-vertical-spin-tunnel\/\" data-type=\"topic\" data-id=\"313848\">Read More<\/a><\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><a href=\"https:\/\/www.nasa.gov\/directorates\/armd\/aetc\/\" data-type=\"topic\" data-id=\"203236\">AETC<\/a><\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><a href=\"https:\/\/www.nasa.gov\/directorates\/armd\/armd-aetc\/about-aetc-ground-facilities\/\">AETC Ground Facilities<\/a><\/p>\n\n\n<div id=\"\" class=\"hds-social-media grid-container grid-container-block nasa-gb-align- width-full maxw-full margin-y-0 padding-y-5 padding-x-3 desktop:padding-x-0 font-weight-bold hds-module wp-block-nasa-blocks-social-media-links\">\t\t<div class=\"display-flex flex-align-center padding-y-1\" id=\"social-facebook\">\n\t\t\t<div class=\"circle-4 minw-4 display-flex flex-align-center flex-justify-center\" style=\"background-color: #4267B2;\">\n\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" aria-labelledby=\"facebookIconTitle\"><title id=\"facebookIconTitle\">Facebook logo<\/title><path d=\"M9 8h-3v4h3v12h5v-12h3.642l.358-4h-4v-1.667c0-.955.192-1.333 1.115-1.333h2.885v-5h-3.808c-3.596 0-5.192 1.583-5.192 4.615v3.385z\"\/><\/svg>\t\t\t<\/div>\n\t\t\t<div class=\"hds-social-media-items padding-left-2\">\n\t\t\t\t<a target=\"_blank\" class=\"margin-right-2\" href=\"https:\/\/facebook.com\/NASA\" aria-label=\"Go to @NASA on facebook\" rel=\"noopener\">@NASA<\/a><a target=\"_blank\" class=\"margin-right-2\" href=\"https:\/\/facebook.com\/NASAaero\" aria-label=\"Go to @NASAaero on facebook\" rel=\"noopener\">@NASAaero<\/a><a target=\"_blank\" class=\"margin-right-2\" href=\"https:\/\/facebook.com\/NASA_es\" aria-label=\"Go to @NASA_es on facebook\" rel=\"noopener\">@NASA_es<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"display-flex flex-align-center padding-y-1\" id=\"social-twitter\">\n\t\t\t<div class=\"circle-4 minw-4 display-flex flex-align-center flex-justify-center\" style=\"background-color: #1DA1F2;\">\n\t\t\t\t<svg width=\"1200\" height=\"1227\" viewBox=\"0 0 1200 1227\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M714.163 519.284L1160.89 0H1055.03L667.137 450.887L357.328 0H0L468.492 681.821L0 1226.37H105.866L515.491 750.218L842.672 1226.37H1200L714.137 519.284H714.163ZM569.165 687.828L521.697 619.934L144.011 79.6944H306.615L611.412 515.685L658.88 583.579L1055.08 1150.3H892.476L569.165 687.854V687.828Z\" fill=\"white\"\/><\/svg>\t\t\t<\/div>\n\t\t\t<div class=\"hds-social-media-items padding-left-2\">\n\t\t\t\t<a target=\"_blank\" class=\"margin-right-2\" href=\"https:\/\/x.com\/NASA\" aria-label=\"Go to @NASA on twitter\">@NASA<\/a><a target=\"_blank\" class=\"margin-right-2\" href=\"https:\/\/x.com\/NASAaero\" aria-label=\"Go to @NASAaero on twitter\">@NASAaero<\/a><a target=\"_blank\" class=\"margin-right-2\" href=\"https:\/\/x.com\/NASA_es\" aria-label=\"Go to @NASA_es on twitter\">@NASA_es<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"display-flex flex-align-center padding-y-1\" id=\"social-instagram\">\n\t\t\t<div class=\"circle-4 minw-4 display-flex flex-align-center flex-justify-center\" style=\"background-color: #833AB4;\">\n\t\t\t\t<svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" width=\"169.063px\" height=\"169.063px\" viewBox=\"0 0 169.063 169.063\" style=\"enable-background:new 0 0 169.063 169.063;\" xml:space=\"preserve\" aria-labelledby=\"instagramIconTitle\"><title id=\"instagramIconTitle\">Instagram logo<\/title><g> <path d=\"M122.406,0H46.654C20.929,0,0,20.93,0,46.655v75.752c0,25.726,20.929,46.655,46.654,46.655h75.752 c25.727,0,46.656-20.93,46.656-46.655V46.655C169.063,20.93,148.133,0,122.406,0z M154.063,122.407 c0,17.455-14.201,31.655-31.656,31.655H46.654C29.2,154.063,15,139.862,15,122.407V46.655C15,29.201,29.2,15,46.654,15h75.752 c17.455,0,31.656,14.201,31.656,31.655V122.407z\"\/> <path d=\"M84.531,40.97c-24.021,0-43.563,19.542-43.563,43.563c0,24.02,19.542,43.561,43.563,43.561s43.563-19.541,43.563-43.561 C128.094,60.512,108.552,40.97,84.531,40.97z M84.531,113.093c-15.749,0-28.563-12.812-28.563-28.561 c0-15.75,12.813-28.563,28.563-28.563s28.563,12.813,28.563,28.563C113.094,100.281,100.28,113.093,84.531,113.093z\"\/> <path d=\"M129.921,28.251c-2.89,0-5.729,1.17-7.77,3.22c-2.051,2.04-3.23,4.88-3.23,7.78c0,2.891,1.18,5.73,3.23,7.78 c2.04,2.04,4.88,3.22,7.77,3.22c2.9,0,5.73-1.18,7.78-3.22c2.05-2.05,3.22-4.89,3.22-7.78c0-2.9-1.17-5.74-3.22-7.78 C135.661,29.421,132.821,28.251,129.921,28.251z\"\/><\/g><\/svg>\t\t\t<\/div>\n\t\t\t<div class=\"hds-social-media-items padding-left-2\">\n\t\t\t\t<a target=\"_blank\" class=\"margin-right-2\" href=\"https:\/\/instagram.com\/NASA\" aria-label=\"Go to @NASA on instagram\" rel=\"noopener\">@NASA<\/a><a target=\"_blank\" class=\"margin-right-2\" href=\"https:\/\/instagram.com\/NASAaero\" aria-label=\"Go to @NASAaero on instagram\" rel=\"noopener\">@NASAaero<\/a><a target=\"_blank\" class=\"margin-right-2\" href=\"https:\/\/instagram.com\/NASA_es\" aria-label=\"Go to @NASA_es on instagram\" rel=\"noopener\">@NASA_es<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"display-flex flex-align-center padding-y-1\" id=\"social-linkedin\">\n\t\t\t<div class=\"circle-4 minw-4 display-flex flex-align-center flex-justify-center\" style=\"background-color: #0072b1;\">\n\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" aria-labelledby=\"linkedinIconTitle\"><title id=\"linkedinIconTitle\">Linkedin logo<\/title><path d=\"M4.98 3.5c0 1.381-1.11 2.5-2.48 2.5s-2.48-1.119-2.48-2.5c0-1.38 1.11-2.5 2.48-2.5s2.48 1.12 2.48 2.5zm.02 4.5h-5v16h5v-16zm7.982 0h-4.968v16h4.969v-8.399c0-4.67 6.029-5.052 6.029 0v8.399h4.988v-10.131c0-7.88-8.922-7.593-11.018-3.714v-2.155z\"\/><\/svg>\t\t\t<\/div>\n\t\t\t<div class=\"hds-social-media-items padding-left-2\">\n\t\t\t\t<a target=\"_blank\" class=\"margin-right-2\" href=\"https:\/\/linkedin.com\/company\/NASA\" aria-label=\"Go to @NASA on linkedin\" rel=\"noopener\">@NASA<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\n<div id=\"\" class=\"nasa-gb-align-full width-full maxw-full padding-x-3 padding-y-0 hds-module hds-module-full wp-block-nasa-blocks-related-articles\">\t\t<section class=\"hds-related-articles padding-x-0 padding-y-3 desktop:padding-top-7 desktop:padding-bottom-9\">\n\t\t\t<div class=\"w-100 grid-row grid-container maxw-widescreen padding-0 text-align-left\">\n\t\t\t\t<div class=\"margin-bottom-4\"><h2 style=\"max-width: 100%;\" class=\"width-full w-full maxw-full\">Explore More<\/h2><\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"grid-row grid-container maxw-widescreen padding-0\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-4 margin-bottom-4 desktop:margin-bottom-0 desktop:padding-right-3\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/directorates\/armd\/armd-aetc\/14-by-22-foot-subsonic-tunnel-data-acquisition\/\" class=\"color-carbon-black\">\n\t\t\t\t\t\t\t<div class=\"margin-bottom-2\">\n\t\t\t\t\t\t\t\t<div class=\"hds-cover-wrapper cover-hover-zoom bg-carbon-black minh-mobile\">\n\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/02\/noise_reduction_model_14x22.jpg?w=300\" class=\"attachment-medium size-medium\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/02\/noise_reduction_model_14x22.jpg 1776w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/02\/noise_reduction_model_14x22.jpg?resize=300,225 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/02\/noise_reduction_model_14x22.jpg?resize=768,576 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/02\/noise_reduction_model_14x22.jpg?resize=1024,768 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/02\/noise_reduction_model_14x22.jpg?resize=1536,1152 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/02\/noise_reduction_model_14x22.jpg?resize=400,300 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/02\/noise_reduction_model_14x22.jpg?resize=600,450 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/02\/noise_reduction_model_14x22.jpg?resize=900,675 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/02\/noise_reduction_model_14x22.jpg?resize=1200,900 1200w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/figure>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"padding-right-0 desktop:padding-right-10\">\n\t\t\t\t\t\t\t\t<div class=\"subheading margin-bottom-1\">1 min read<\/div>\n\t\t\t\t\t\t\t\t<div class=\"margin-bottom-1\"><h3 class=\"related-article-title\">14- by 22-Foot Subsonic Tunnel Data Acquisition<\/h3><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"display-flex flex-align-center label related-article-label margin-bottom-1 color-carbon-60\">\n\t\t\t\t\t\t\t\t\t<span class=\"display-flex flex-align-center margin-right-2\">\n\t\t\t\t\t\t\t\t\t\t<svg version=\"1.1\" class=\"square-2 margin-right-1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" width=\"16px\" height=\"16px\" viewBox=\"0 0 16 16\" style=\"enable-background:new 0 0 16 16;\" xml:space=\"preserve\"><g><g><path d=\"M8,0C3.5,0-0.1,3.7,0,8.2C0.1,12.5,3.6,16,8,16c4.4,0,8-3.6,8-8C16,3.5,12.4,0,8,0z M8,15.2 C4,15.2,0.8,12,0.8,8C0.8,4,4,0.8,8,0.8c3.9,0,7.2,3.2,7.2,7.1C15.2,11.9,12,15.2,8,15.2z\"\/><path d=\"M5.6,12c0.8-0.8,1.6-1.6,2.4-2.4c0.8,0.8,1.6,1.6,2.4,2.4c0-2.7,0-5.3,0-8C8.8,4,7.2,4,5.6,4 C5.6,6.7,5.6,9.3,5.6,12z\"\/><\/g><\/g><\/svg>\n\t\t\t\t\t\t\t\t\t\t<span>Article<\/span>\n\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"\">\n\t\t\t\t\t\t\t\t\t\t1 year ago\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-4 margin-bottom-4 desktop:margin-bottom-0 desktop:padding-right-3\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/directorates\/armd\/armd-aetc\/14-by-22-foot-subsonic-tunnel-quick-facts\/\" class=\"color-carbon-black\">\n\t\t\t\t\t\t\t<div class=\"margin-bottom-2\">\n\t\t\t\t\t\t\t\t<div class=\"hds-cover-wrapper cover-hover-zoom bg-carbon-black minh-mobile\">\n\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"240\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/04\/madcat_tunnel.jpg?w=300\" class=\"attachment-medium size-medium\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/04\/madcat_tunnel.jpg 4000w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/04\/madcat_tunnel.jpg?resize=300,240 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/04\/madcat_tunnel.jpg?resize=768,614 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/04\/madcat_tunnel.jpg?resize=1024,819 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/04\/madcat_tunnel.jpg?resize=1536,1229 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/04\/madcat_tunnel.jpg?resize=2048,1638 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/04\/madcat_tunnel.jpg?resize=400,320 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/04\/madcat_tunnel.jpg?resize=600,480 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/04\/madcat_tunnel.jpg?resize=900,720 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/04\/madcat_tunnel.jpg?resize=1200,960 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/04\/madcat_tunnel.jpg?resize=2000,1600 2000w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/figure>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"padding-right-0 desktop:padding-right-10\">\n\t\t\t\t\t\t\t\t<div class=\"subheading margin-bottom-1\">1 min read<\/div>\n\t\t\t\t\t\t\t\t<div class=\"margin-bottom-1\"><h3 class=\"related-article-title\">14- by 22-Foot Subsonic Tunnel Quick Facts<\/h3><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"display-flex flex-align-center label related-article-label margin-bottom-1 color-carbon-60\">\n\t\t\t\t\t\t\t\t\t<span class=\"display-flex flex-align-center margin-right-2\">\n\t\t\t\t\t\t\t\t\t\t<svg version=\"1.1\" class=\"square-2 margin-right-1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" width=\"16px\" height=\"16px\" viewBox=\"0 0 16 16\" style=\"enable-background:new 0 0 16 16;\" xml:space=\"preserve\"><g><g><path d=\"M8,0C3.5,0-0.1,3.7,0,8.2C0.1,12.5,3.6,16,8,16c4.4,0,8-3.6,8-8C16,3.5,12.4,0,8,0z M8,15.2 C4,15.2,0.8,12,0.8,8C0.8,4,4,0.8,8,0.8c3.9,0,7.2,3.2,7.2,7.1C15.2,11.9,12,15.2,8,15.2z\"\/><path d=\"M5.6,12c0.8-0.8,1.6-1.6,2.4-2.4c0.8,0.8,1.6,1.6,2.4,2.4c0-2.7,0-5.3,0-8C8.8,4,7.2,4,5.6,4 C5.6,6.7,5.6,9.3,5.6,12z\"\/><\/g><\/g><\/svg>\n\t\t\t\t\t\t\t\t\t\t<span>Article<\/span>\n\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"\">\n\t\t\t\t\t\t\t\t\t\t1 year ago\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-4 margin-bottom-4 desktop:margin-bottom-0 desktop:padding-right-3\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/directorates\/armd\/armd-aetc\/14-by-22-foot-subsonic-tunnel-characteristics\/\" class=\"color-carbon-black\">\n\t\t\t\t\t\t\t<div class=\"margin-bottom-2\">\n\t\t\t\t\t\t\t\t<div class=\"hds-cover-wrapper cover-hover-zoom bg-carbon-black minh-mobile\">\n\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/lrc-2017-h1_p_sls-040403_0.jpg?w=300\" class=\"attachment-medium size-medium\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/lrc-2017-h1_p_sls-040403_0.jpg 985w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/lrc-2017-h1_p_sls-040403_0.jpg?resize=300,225 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/lrc-2017-h1_p_sls-040403_0.jpg?resize=768,576 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/lrc-2017-h1_p_sls-040403_0.jpg?resize=400,300 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/lrc-2017-h1_p_sls-040403_0.jpg?resize=600,450 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/lrc-2017-h1_p_sls-040403_0.jpg?resize=900,675 900w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/figure>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"padding-right-0 desktop:padding-right-10\">\n\t\t\t\t\t\t\t\t<div class=\"subheading margin-bottom-1\">1 min read<\/div>\n\t\t\t\t\t\t\t\t<div class=\"margin-bottom-1\"><h3 class=\"related-article-title\">14- by 22-Foot Subsonic Tunnel Characteristics<\/h3><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"display-flex flex-align-center label related-article-label margin-bottom-1 color-carbon-60\">\n\t\t\t\t\t\t\t\t\t<span class=\"display-flex flex-align-center margin-right-2\">\n\t\t\t\t\t\t\t\t\t\t<svg version=\"1.1\" class=\"square-2 margin-right-1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" width=\"16px\" height=\"16px\" viewBox=\"0 0 16 16\" style=\"enable-background:new 0 0 16 16;\" xml:space=\"preserve\"><g><g><path d=\"M8,0C3.5,0-0.1,3.7,0,8.2C0.1,12.5,3.6,16,8,16c4.4,0,8-3.6,8-8C16,3.5,12.4,0,8,0z M8,15.2 C4,15.2,0.8,12,0.8,8C0.8,4,4,0.8,8,0.8c3.9,0,7.2,3.2,7.2,7.1C15.2,11.9,12,15.2,8,15.2z\"\/><path d=\"M5.6,12c0.8-0.8,1.6-1.6,2.4-2.4c0.8,0.8,1.6,1.6,2.4,2.4c0-2.7,0-5.3,0-8C8.8,4,7.2,4,5.6,4 C5.6,6.7,5.6,9.3,5.6,12z\"\/><\/g><\/g><\/svg>\n\t\t\t\t\t\t\t\t\t\t<span>Article<\/span>\n\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"\">\n\t\t\t\t\t\t\t\t\t\t1 year ago\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<\/div>\n\n<div id=\"\" class=\"hds-topic-cards nasa-gb-align-full maxw-full width-full padding-y-6 padding-x-3 color-mode-dark hds-module hds-module-full wp-block-nasa-blocks-topic-cards\">\t\t<div class=\"grid-container grid-container-block-lg padding-x-0\">\n\t\t\t<div class=\"grid-row flex-align-center margin-bottom-3\">\n\t\t\t\t<div class=\"desktop:grid-col-8 margin-bottom-2 desktop:margin-bottom-0\">\n\t\t\t\t\t<div class=\"label color-carbon-60 margin-bottom-2\">Keep Exploring<\/div>\n\t\t\t\t\t<h2 class=\"heading-36 line-height-sm\">Discover More Topics From NASA<\/h2>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t<div class=\"grid-row grid-gap-2 hds-topic-cards-wrapper\">\n\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/nasa-missions\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\">\n\t\t\t\t<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n\t\t\t\t\t<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n\t\t\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Missions<\/span>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"864\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?w=1536\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg 3840w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=300,169 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=768,432 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=1024,576 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=1536,864 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=2048,1152 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=400,225 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=600,338 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=900,506 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=1200,675 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=2000,1125 2000w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/a>\n\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/humans-in-space\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\">\n\t\t\t\t<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n\t\t\t\t\t<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n\t\t\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Humans In Space<\/span>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"368\" height=\"560\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/03\/topic-humans-in-space.jpg?w=368\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/03\/topic-humans-in-space.jpg 368w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/03\/topic-humans-in-space.jpg?resize=197,300 197w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/03\/topic-humans-in-space.jpg?resize=263,400 263w\" sizes=\"(max-width: 368px) 100vw, 368px\" \/><\/figure>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/a>\n\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/solar-system\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\" rel=\"noopener\">\n\t\t\t\t<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n\t\t\t\t\t<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n\t\t\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<h3 class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Solar System Exploration<\/span>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/h3>\n\t\t\t\t\t\t\t<p class=\"margin-bottom-0 margin-top-2 color-carbon-20-important\">Why Oceans Matter The story of oceans is the story of life. Life as we know it requires three ingredients:…<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img decoding=\"async\" loading=\"lazy\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" src=\"https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/pia06890-our-solar-system-banner-1920x640-1.jpg\" ><\/figure>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/a>\n\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/history\/explore-nasas-history\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\">\n\t\t\t\t<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n\t\t\t\t\t<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n\t\t\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Explore NASA’s History<\/span>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"1919\" height=\"1878\" src=\"https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=1919&h=1878&fit=clip&crop=faces%2Cfocalpoint\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=1919&h=1878&fit=crop&crop=faces%2Cfocalpoint 1919w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=300&h=294&fit=crop&crop=faces%2Cfocalpoint 300w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=768&h=752&fit=crop&crop=faces%2Cfocalpoint 768w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=1024&h=1002&fit=crop&crop=faces%2Cfocalpoint 1024w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=1536&h=1503&fit=crop&crop=faces%2Cfocalpoint 1536w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=50&h=49&fit=crop&crop=faces%2Cfocalpoint 50w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=400&h=391&fit=crop&crop=faces%2Cfocalpoint 400w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=600&h=587&fit=crop&crop=faces%2Cfocalpoint 600w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=900&h=881&fit=crop&crop=faces%2Cfocalpoint 900w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=1200&h=1174&fit=crop&crop=faces%2Cfocalpoint 1200w\" sizes=\"(max-width: 1919px) 100vw, 1919px\" \/><\/figure>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n<div id=\"\" class=\"nasa-gb-align-full width-full maxw-full padding-x-3 padding-y-0 article_a hds-module hds-module-full wp-block-nasa-blocks-credits-and-details\">\n<section class=\"padding-x-0 padding-top-5 padding-bottom-2 desktop:padding-top-7 desktop:padding-bottom-9\">\n\t<div class=\"grid-row grid-container maxw-widescreen padding-0\">\n\t\t<div class=\"grid-col-12 desktop:grid-col-2 padding-right-4 margin-bottom-5 desktop:margin-bottom-0\">\n\t\t\t<div class=\"padding-top-3 border-top-1px border-color-carbon-black\">\n\t\t\t\t<div class=\"margin-bottom-2\">\n\t\t\t\t\t<h2 class=\"heading-14\">Share<\/h2>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"padding-bottom-2\">\n\t\t\t\t\t<ul class=\"social-icons social-icons-round\">\n\t\t\t\t\t\t<li class=\"social-icon social-icon-x\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/x.com\/intent\/tweet?via=NASA&text=AETC%20Subsonic%20Facilities&url=https%3A%2F%2Fwww.nasa.gov%2Fdirectorates%2Farmd%2Farmd-aetc%2Faerosciences-evaluation-and-test-capabilities-aetc-portfolio-subsonic-facilities%2F\" aria-label=\"Share on X.\">\n\t\t\t\t\t\t\t\t<svg width=\"1200\" height=\"1227\" viewBox=\"0 0 1200 1227\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M714.163 519.284L1160.89 0H1055.03L667.137 450.887L357.328 0H0L468.492 681.821L0 1226.37H105.866L515.491 750.218L842.672 1226.37H1200L714.137 519.284H714.163ZM569.165 687.828L521.697 619.934L144.011 79.6944H306.615L611.412 515.685L658.88 583.579L1055.08 1150.3H892.476L569.165 687.854V687.828Z\" fill=\"white\"\/><\/svg>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<li class=\"social-icon social-icon-facebook\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/www.facebook.com\/sharer.php?u=https%3A%2F%2Fwww.nasa.gov%2Fdirectorates%2Farmd%2Farmd-aetc%2Faerosciences-evaluation-and-test-capabilities-aetc-portfolio-subsonic-facilities%2F\" aria-label=\"Share on Facebook.\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\" aria-hidden=\"true\"><path d=\"M9 8h-3v4h3v12h5v-12h3.642l.358-4h-4v-1.667c0-.955.192-1.333 1.115-1.333h2.885v-5h-3.808c-3.596 0-5.192 1.583-5.192 4.615v3.385z\"\/><\/svg>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<li class=\"social-icon social-icon-linkedin\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/www.linkedin.com\/shareArticle?mini=true&url=https%3A%2F%2Fwww.nasa.gov%2Fdirectorates%2Farmd%2Farmd-aetc%2Faerosciences-evaluation-and-test-capabilities-aetc-portfolio-subsonic-facilities%2F\" aria-label=\"Share on LinkedIn.\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\" aria-hidden=\"true\"><path d=\"M4.98 3.5c0 1.381-1.11 2.5-2.48 2.5s-2.48-1.119-2.48-2.5c0-1.38 1.11-2.5 2.48-2.5s2.48 1.12 2.48 2.5zm.02 4.5h-5v16h5v-16zm7.982 0h-4.968v16h4.969v-8.399c0-4.67 6.029-5.052 6.029 0v8.399h4.988v-10.131c0-7.88-8.922-7.593-11.018-3.714v-2.155z\"\/><\/svg>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<li class=\"social-icon social-icon-rss\">\n\t\t\t\t\t\t\t<a href=\"\/feed\/\" aria-label=\"Subscribe to RSS feed.\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 800 800\" aria-hidden=\"true\"><path d=\"M493 652H392c0-134-111-244-244-244V307c189 0 345 156 345 345zm71 0c0-228-188-416-416-416V132c285 0 520 235 520 520z\"\/><circle cx=\"219\" cy=\"581\" r=\"71\"\/><\/svg>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t<\/ul>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<div class=\"grid-col-12 desktop:grid-col-5 padding-right-4 margin-bottom-5 desktop:margin-bottom-0\">\n\t\t\t<div class=\"padding-top-3 border-top-1px border-color-carbon-black\">\n\t\t\t\t<div class=\"margin-bottom-2\">\n\t\t\t\t\t<h2 class=\"heading-14\">Details<\/h2>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"grid-row margin-bottom-3\">\n\t\t\t\t\t<div class=\"grid-col-4\">\n\t\t\t\t\t\t<div class=\"subheading\">Last Updated<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"grid-col-8\">Nov 08, 2023<\/div>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"grid-row margin-bottom-3\"><div class=\"grid-col-4\"><div class=\"subheading\">Editor<\/div><\/div><div class=\"grid-col-8\">Lillian Gipson<\/div><\/div><div class=\"grid-row margin-bottom-3\"><div class=\"grid-col-4\"><div class=\"subheading\">Contact<\/div><\/div><div class=\"grid-col-8\"><div class=\"margin-bottom-3\"><div>Jim Banke<\/div><div><a href=\"mailto:jim.banke@nasa.gov\">jim.banke@nasa.gov<\/a><\/div><\/div><\/div><\/div>\t\t\t<\/div>\n\t\t<\/div>\n\t<div class=\"grid-col-12 desktop:grid-col-5 padding-right-4 margin-bottom-5 desktop:margin-bottom-0\"><div class=\"padding-top-3 border-top-1px border-color-carbon-black \"><div class=\"margin-bottom-2\"><h2 class=\"heading-14\">Related Terms<\/h2><\/div><ul class=\"article-tags\"><li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/nasa-directorates\/armd\/aetc\/\">Aerosciences Evaluation Test Capabilities<\/a><\/li><\/ul><\/div><\/div>\n\t<\/div>\n<\/section>\n\t<\/div>","protected":false},"excerpt":{"rendered":"<p>9- by 15-Foot Low-Speed Wind Tunnel The 9- by 15-Foot Low-Speed Wind Tunnel at GRC has nationally recognized capabilities to evaluate the aerodynamic performance and acoustic characteristics of fans, nozzles, inlets, and propellers. The tunnel can simulate takeoff, approach, and landing in a continuous subsonic flow wind tunnel environment including the investigation of hot gas […]<\/p>\n","protected":false},"author":48,"featured_media":280791,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nasa_hds_core_meta_l10n":"en-US","nasa_hds_core_meta_article_editor":"48","nasa_hds_core_meta_article_contacts":["47"],"nasa_hds_core_meta_article_topic":"","nasa_hds_core_meta_linked_locations":[],"nasa_hds_core_meta_article_related_articles":[],"hds_migrate_meta_pr_release_id":"","hds_migrate_meta_pr_release_type":"","nasa_hds_core_meta_location_x":"","nasa_hds_core_meta_location_y":"","nasa_hds_core_meta_gallery_images":[],"footnotes":""},"categories":[10542],"news-tags":[],"internal-terms":[10616,10831],"coauthors":[8594],"parsely":{"version":"1.1.0","meta":{"@context":"https:\/\/schema.org","@type":"NewsArticle","headline":"AETC Subsonic Facilities","url":"https:\/\/www.nasa.gov\/directorates\/armd\/armd-aetc\/aerosciences-evaluation-and-test-capabilities-aetc-portfolio-subsonic-facilities\/","mainEntityOfPage":{"@type":"WebPage","@id":"https:\/\/www.nasa.gov\/directorates\/armd\/armd-aetc\/aerosciences-evaluation-and-test-capabilities-aetc-portfolio-subsonic-facilities\/"},"thumbnailUrl":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/12\/aetc-banner-4.jpg?w=150&h=150&crop=1","image":{"@type":"ImageObject","url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/12\/aetc-banner-4.jpg"},"articleSection":"NASA Directorates","author":[{"@type":"Person","name":"Lillian Gipson"}],"creator":["Lillian Gipson"],"publisher":{"@type":"Organization","name":"NASA","logo":"https:\/\/www.nasa.gov\/wp-content\/themes\/nasa\/assets\/images\/nasa-logo.svg"},"keywords":["NASA Directorates","Aeronautics Research Mission Directorate","Aerosciences Evaluation Test Capabilities"],"dateCreated":"2015-12-09T20:51:40Z","datePublished":"2015-12-09T20:51:40Z","dateModified":"2023-11-08T15:30:06Z"},"rendered":"<meta name=\"parsely-title\" content=\"AETC Subsonic Facilities\" \/>\n<meta name=\"parsely-link\" content=\"https:\/\/www.nasa.gov\/directorates\/armd\/armd-aetc\/aerosciences-evaluation-and-test-capabilities-aetc-portfolio-subsonic-facilities\/\" \/>\n<meta name=\"parsely-type\" content=\"post\" \/>\n<meta name=\"parsely-image-url\" content=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/12\/aetc-banner-4.jpg?w=150&h=150&crop=1\" \/>\n<meta name=\"parsely-pub-date\" content=\"2015-12-09T20:51:40Z\" \/>\n<meta name=\"parsely-section\" content=\"NASA Directorates\" \/>\n<meta name=\"parsely-tags\" content=\"NASA Directorates,Aeronautics Research Mission Directorate,Aerosciences Evaluation Test Capabilities\" \/>\n<meta name=\"parsely-author\" content=\"Lillian Gipson\" \/>","tracker_url":"https:\/\/cdn.parsely.com\/keys\/nasa.gov\/p.js"},"read_time":3,"time_ago":"9 years","featured_image":{"id":280791,"file":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/12\/aetc-banner-4.jpg","title":"aetc-banner-4","alt":"Abstract lines and the words Aerosciences Evaluation and Test Capabilities.","caption":""},"_links":{"self":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/40674"}],"collection":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/users\/48"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/comments?post=40674"}],"version-history":[{"count":15,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/40674\/revisions"}],"predecessor-version":[{"id":563356,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/40674\/revisions\/563356"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media\/280791"}],"wp:attachment":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media?parent=40674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/categories?post=40674"},{"taxonomy":"news-tags","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/news-tags?post=40674"},{"taxonomy":"internal-terms","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/internal-terms?post=40674"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/coauthors?post=40674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}