{"id":246925,"date":"2014-05-12T04:39:00","date_gmt":"2014-05-12T04:39:00","guid":{"rendered":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg"},"modified":"2023-06-14T12:51:08","modified_gmt":"2023-06-14T16:51:08","slug":"access-ii-preparing-descend","status":"inherit","type":"attachment","link":"https:\/\/www.nasa.gov\/image-detail\/access-ii-preparing-descend\/","title":{"rendered":"ACCESS II: Preparing to Descend"},"author":9,"comment_status":"closed","ping_status":"closed","template":"","meta":{"nasa_hds_core_meta_l10n":"en-US","nasa_hds_core_meta_article_editor":"","nasa_hds_core_meta_article_contacts":[],"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":[],"nasa_hds_core_meta_video_cc_file_id":"","nasa_hds_core_meta_audio_cc_file_id":""},"media-tags":[12242,10822,12246],"read_time":1,"video_cc_url":"","audio_cc_url":"","credits":"National Research Council of Canada","original_date":{"stamp":0,"display":""},"description":{"rendered":"<p class=\"attachment\"><a href='https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"224\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?w=300\" class=\"attachment-medium size-medium\" alt=\"CT-133 aircraft of research partner NRCC, shows the NASA HU-25C Guardian aircraft flying 250 meters behind NASA's DC-8 aircraft.\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg 1041w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?resize=300,224 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?resize=768,574 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?resize=1024,765 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?resize=400,299 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?resize=600,448 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?resize=900,673 900w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>This photo, taken from the CT-133 aircraft of research partner National Research Council of Canada, shows the NASA HU-25C Guardian aircraft flying 250 meters behind NASA’s DC-8 aircraft before it descends into the DC-8’s exhaust plumes to sample ice particles and engine emissions.<\/p>\n<p>The flights are part of the Alternative Fuel Effects on Contrails and Cruise Emissions or ACCESS II experiment, which is measuring and characterizing airborne emissions from the DC-8 as it burns both conventional jet fuel and blended alternative fuels, including a biofuel. NASA, with research partners from Germany and Canada, is investigating fuel effects on aircraft cruise emissions and contrail formation.<\/p>\n<p>Within NASA, ACCESS II is a joint project involving Armstrong Flight Research Center, California; Langley Research Center, Virginia; and Glenn Research Center in Cleveland. The research supports NASA aeronautics’ strategic vision, which has as a goal to enable transition of industry to low-carbon fuels and alternative propulsion systems. <\/p>\n<p><a href=\"aero\/premiere-high-flying-sequel\">Read More About ACCESS II<\/a><\/p>\n"},"caption":{"rendered":"<p>This photo, taken from the CT-133 aircraft of research partner National Research Council of Canada, shows the NASA HU-25C Guardian aircraft flying 250 meters behind NASA’s DC-8 aircraft before it descends into the DC-8’s exhaust plumes to sample ice particles and engine emissions.<\/p>\n<p>The flights are part of the Alternative Fuel Effects on Contrails and Cruise Emissions or ACCESS II experiment, which is measuring and characterizing airborne emissions from the DC-8 as it burns both conventional jet fuel and blended alternative fuels, including a biofuel. NASA, with research partners from Germany and Canada, is investigating fuel effects on aircraft cruise emissions and contrail formation.<\/p>\n<p>Within NASA, ACCESS II is a joint project involving Armstrong Flight Research Center, California; Langley Research Center, Virginia; and Glenn Research Center in Cleveland. The research supports NASA aeronautics’ strategic vision, which has as a goal to enable transition of industry to low-carbon fuels and alternative propulsion systems. <\/p>\n"},"alt_text":"CT-133 aircraft of research partner NRCC, shows the NASA HU-25C Guardian aircraft flying 250 meters behind NASA's DC-8 aircraft.","media_type":"image","mime_type":"image\/jpeg","media_details":{"width":1041,"height":778,"file":"2023\/03\/hu-25c_sampling_5-9-14.jpg","filesize":71611,"sizes":{"thumbnail":{"file":"hu-25c_sampling_5-9-14.jpg?resize=150,150","width":150,"height":150,"filesize":71611,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?w=150&h=150&crop=1"},"medium":{"file":"hu-25c_sampling_5-9-14.jpg?resize=300,224","width":300,"height":224,"filesize":71611,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?w=300"},"medium_large":{"file":"hu-25c_sampling_5-9-14.jpg?resize=768,574","width":768,"height":574,"filesize":71611,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?w=1024"},"large":{"file":"hu-25c_sampling_5-9-14.jpg?resize=1024,765","width":1024,"height":765,"filesize":71611,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?w=1024"},"thumbnail-sm":{"file":"hu-25c_sampling_5-9-14.jpg?resize=50,50","width":50,"height":50,"filesize":71611,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?w=50&h=50&crop=1"},"thumbnail-md":{"file":"hu-25c_sampling_5-9-14.jpg?resize=100,100","width":100,"height":100,"filesize":71611,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?w=100&h=100&crop=1"},"thumbnail-lg":{"file":"hu-25c_sampling_5-9-14.jpg?resize=200,200","width":200,"height":200,"filesize":71611,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?w=200&h=200&crop=1"},"card-xsm":{"file":"hu-25c_sampling_5-9-14.jpg?resize=400,299","width":400,"height":299,"filesize":71611,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?w=400"},"card-sm":{"file":"hu-25c_sampling_5-9-14.jpg?resize=600,448","width":600,"height":448,"filesize":71611,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?w=600"},"card-md":{"file":"hu-25c_sampling_5-9-14.jpg?resize=900,673","width":900,"height":673,"filesize":71611,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg?w=900"},"full":{"file":"hu-25c_sampling_5-9-14.jpg","width":1024,"height":765,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg"}},"image_meta":{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"1399634261","copyright":"","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0","keywords":[]},"credits":"National Research Council of Canada","original_date":{"stamp":0,"display":""}},"post":null,"source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/hu-25c_sampling_5-9-14.jpg","_links":{"self":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media\/246925"}],"collection":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media"}],"about":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/types\/attachment"}],"author":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/users\/9"}],"wp:term":[{"taxonomy":"media-tags","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media-tags?post=246925"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}