{"id":6358,"date":"2020-01-22T13:54:34","date_gmt":"2020-01-22T13:54:34","guid":{"rendered":"https:\/\/www.theblackvault.com\/casefiles\/?p=6358"},"modified":"2020-06-10T18:07:19","modified_gmt":"2020-06-10T18:07:19","slug":"the-kenneth-arnold-sighting-mt-rainier-washington-june-24-1947","status":"publish","type":"post","link":"https:\/\/www.theblackvault.com\/casefiles\/the-kenneth-arnold-sighting-mt-rainier-washington-june-24-1947\/","title":{"rendered":"The Kenneth Arnold Sighting, Mt. Rainier, Washington, June 24, 1947"},"content":{"rendered":"<h3>Background<\/h3>\n<p>The Kenneth Arnold UFO sighting occurred on June 24, 1947, when private pilot Kenneth Arnold claimed that he saw a string of nine, shiny unidentified flying objects flying past Mount Rainier at speeds that Arnold estimated at a minimum of 1,200 miles an hour (1,932 km\/hr). This was the first post-War sighting in the United States that garnered nationwide news coverage and is credited with being the first of the modern era of UFO sightings, including numerous reported sightings over the next two to three weeks. Arnold&#8217;s description of the objects also led to the press quickly coining the terms flying saucer and flying disc as popular descriptive terms for UFOs.<\/p>\n<h3>Document Archive<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/www.theblackvault.com\/images\/pdf.gif\" \/> <a href=\"https:\/\/documents2.theblackvault.com\/documents\/projectbluebook\/kennetharnoldbluebook.pdf\">Project Blue Book Cases: The Kenneth Arnold Sighting, June 24, 1947<\/a> [61 Pages, 11MB]<\/p>\n<div class=\"ead-preview\"><div class=\"ead-document\" style=\"position: relative;padding-top: 90%;\"><div class=\"ead-iframe-wrapper\"><iframe src=\"\/\/docs.google.com\/viewer?url=https%3A%2F%2Fdocuments2.theblackvault.com%2Fdocuments%2Fprojectbluebook%2Fkennetharnoldbluebook.pdf&amp;embedded=true&amp;hl=en\" title=\"Embedded Document\" class=\"ead-iframe\" style=\"width: 100%;height: 100%;border: none;position: absolute;left: 0;top: 0;visibility: hidden;\"><\/iframe><\/div>\t\t\t<div class=\"ead-document-loading\" style=\"width:100%;height:100%;position:absolute;left:0;top:0;z-index:10;\">\n\t\t\t\t<div class=\"ead-loading-wrap\">\n\t\t\t\t\t<div class=\"ead-loading-main\">\n\t\t\t\t\t\t<div class=\"ead-loading\">\n\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.theblackvault.com\/casefiles\/wp-content\/plugins\/embed-any-document\/images\/loading.svg\" width=\"55\" height=\"55\" alt=\"Loader\">\n\t\t\t\t\t\t\t<span>Loading...<\/span>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"ead-loading-foot\">\n\t\t\t\t\t\t<div class=\"ead-loading-foot-title\">\n\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.theblackvault.com\/casefiles\/wp-content\/plugins\/embed-any-document\/images\/EAD-logo.svg\" alt=\"EAD Logo\" width=\"36\" height=\"23\"\/>\n\t\t\t\t\t\t\t<span>Taking too long?<\/span>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<p>\n\t\t\t\t\t\t\t<div class=\"ead-document-btn ead-reload-btn\" role=\"button\">\n\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.theblackvault.com\/casefiles\/wp-content\/plugins\/embed-any-document\/images\/reload.svg\" alt=\"Reload\" width=\"12\" height=\"12\"\/> Reload document\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<span>|<\/span>\n\t\t\t\t\t\t\t<a href=\"https:\/\/documents2.theblackvault.com\/documents\/projectbluebook\/kennetharnoldbluebook.pdf\" class=\"ead-document-btn\" target=\"_blank\">\n\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.theblackvault.com\/casefiles\/wp-content\/plugins\/embed-any-document\/images\/open.svg\" alt=\"Open\" width=\"12\" height=\"12\"\/> Open in new tab\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><p class=\"embed_download\"><a href=\"https:\/\/documents2.theblackvault.com\/documents\/projectbluebook\/kennetharnoldbluebook.pdf\" download>Download [11.17 MB] <\/a><\/p><\/div><p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Background The Kenneth Arnold UFO sighting occurred on June 24, 1947, when private pilot Kenneth Arnold claimed that he saw a string of nine, shiny unidentified flying objects flying past Mount Rainier at speeds that Arnold estimated at a minimum of 1,200 miles an hour (1,932 km\/hr). This was the first post-War sighting in the<\/p>\n","protected":false},"author":1,"featured_media":6995,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1043,2],"tags":[1044,371,292],"class_list":{"0":"post-6358","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-project-blue-book-cases","8":"category-ufos","9":"tag-mt-rainier","10":"tag-project-blue-book","11":"tag-washington"},"acf":[],"aioseo_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The Kenneth Arnold Sighting, Mt. Rainier, Washington, June 24, 1947 - The Black Vault Case Files<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.theblackvault.com\/casefiles\/the-kenneth-arnold-sighting-mt-rainier-washington-june-24-1947\/\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"John Greenewald\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"The Kenneth Arnold Sighting, Mt. 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