{"id":123,"date":"2015-02-21T04:53:54","date_gmt":"2015-02-21T04:53:54","guid":{"rendered":"http:\/\/www.theblackvault.com\/documentarchive\/?p=123"},"modified":"2015-03-04T18:03:20","modified_gmt":"2015-03-04T18:03:20","slug":"project-isinglass","status":"publish","type":"post","link":"https:\/\/www.theblackvault.com\/documentarchive\/project-isinglass\/","title":{"rendered":"Project Isinglass"},"content":{"rendered":"<figure id=\"attachment_125\" aria-describedby=\"caption-attachment-125\" style=\"width: 300px\" class=\"wp-caption alignright\"><a href=\"http:\/\/www.theblackvault.com\/documentarchive\/wp-content\/uploads\/2015\/02\/image012.jpg\"><img decoding=\"async\" class=\"size-medium wp-image-125\" src=\"http:\/\/www.theblackvault.com\/documentarchive\/wp-content\/uploads\/2015\/02\/image012-300x137.jpg\" alt=\"Project Isinglass \" width=\"300\" height=\"137\" srcset=\"https:\/\/www.theblackvault.com\/documentarchive\/wp-content\/uploads\/2015\/02\/image012-300x137.jpg 300w, https:\/\/www.theblackvault.com\/documentarchive\/wp-content\/uploads\/2015\/02\/image012-600x273.jpg 600w, https:\/\/www.theblackvault.com\/documentarchive\/wp-content\/uploads\/2015\/02\/image012-150x68.jpg 150w, https:\/\/www.theblackvault.com\/documentarchive\/wp-content\/uploads\/2015\/02\/image012-450x205.jpg 450w, https:\/\/www.theblackvault.com\/documentarchive\/wp-content\/uploads\/2015\/02\/image012.jpg 615w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-125\" class=\"wp-caption-text\">Project Isinglass<\/figcaption><\/figure>\n<p>Project Isinglass was the code name given to two heavily classified, manned reconnaissance aircraft studied by the Central Intelligence Agency (CIA) as potential replacements for the Lockheed A-12 and SR-71 during the mid 1960s.<\/p>\n<p>The first proposal under the Isinglass name, a high-altitude plane to fly at Mach 4 to 5, was considered an insufficient advancement over existing aircraft; the second, much more advanced design, sometimes referred to as Project Rheinberry, was an air-launched, Mach 20 rocket-powered boost-glide aircraft that would use a very-high-altitude trajectory to avoid defenses. This aircraft was considered too costly for development, and the project was abandoned in 1967.<\/p>\n<p>Below, are documents received about Project Isinglass.<\/p>\n<p>&nbsp;<\/p>\n<h3>National Reconnaissance Office (NRO) Documents<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/www.theblackvault.com\/images\/pdf.gif\" alt=\"\" \/>\u00a0<a href=\"https:\/\/documents.theblackvault.com\/documents\/spysatellites\/foia-isinglass.pdf\">ISINGLASS Research &amp; Development Program, 1966<\/a> [125 Pages, 14.5MB]<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Project Isinglass was the code name given to two heavily classified, manned reconnaissance aircraft studied by the Central Intelligence Agency (CIA) as potential replacements for the Lockheed A-12 and SR-71 during the mid 1960s. The first proposal under the Isinglass name, a high-altitude plane to fly at Mach 4 to 5, was considered an insufficient<\/p>\n","protected":false},"author":1,"featured_media":124,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"episode_type":"","audio_file":"","transcript_file":"","podmotor_file_id":"","podmotor_episode_id":"","cover_image":"","cover_image_id":"","duration":"","filesize":"","filesize_raw":"","date_recorded":"","explicit":"","block":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[11,59],"tags":[68,66,65,64,67],"class_list":{"0":"post-123","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-aircraft-air-force-history","8":"category-reconnaissance","9":"tag-aircraft","10":"tag-central-intelligence-agency","11":"tag-cia","12":"tag-d21","13":"tag-reconnaissance"},"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/www.theblackvault.com\/documentarchive\/wp-content\/uploads\/2015\/02\/B-52_with_two_D-21s.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.theblackvault.com\/documentarchive\/wp-json\/wp\/v2\/posts\/123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.theblackvault.com\/documentarchive\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.theblackvault.com\/documentarchive\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.theblackvault.com\/documentarchive\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.theblackvault.com\/documentarchive\/wp-json\/wp\/v2\/comments?post=123"}],"version-history":[{"count":0,"href":"https:\/\/www.theblackvault.com\/documentarchive\/wp-json\/wp\/v2\/posts\/123\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.theblackvault.com\/documentarchive\/wp-json\/wp\/v2\/media\/124"}],"wp:attachment":[{"href":"https:\/\/www.theblackvault.com\/documentarchive\/wp-json\/wp\/v2\/media?parent=123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.theblackvault.com\/documentarchive\/wp-json\/wp\/v2\/categories?post=123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.theblackvault.com\/documentarchive\/wp-json\/wp\/v2\/tags?post=123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}