{"id":323,"date":"2019-02-18T00:55:23","date_gmt":"2019-02-18T00:55:23","guid":{"rendered":"https:\/\/rosi.siu.edu\/?p=323"},"modified":"2025-09-30T20:08:47","modified_gmt":"2025-09-30T20:08:47","slug":"project-update-2-17-2019","status":"publish","type":"post","link":"https:\/\/rosi.siu.edu\/?p=323","title":{"rendered":"Project Update 2\/17\/2019"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><a rel=\"noreferrer noopener\" aria-label=\"Ejection Tests (opens in a new tab)\" href=\"https:\/\/drive.google.com\/drive\/folders\/1reeHcS-wQ76prPGlkiSTfilzX1QvGWwv\" target=\"_blank\">Ejection Test\u00a0Videos<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Today we successfully tested our ejection system for the 2019 Argonia Cup. Before testing, we repaired a few cracks along the fins by sanding off the cracked epoxy and applying a new layer. While the epoxy dried we assembled the ejection charges. They consist of three grams of FFFFG black powder around an electric match packed tight with fireproof attic insulation. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Once the rocket and charges were ready, we drove out to a farm owned by the president of Winn-Star, an aerospace contracting company. We tested two charges, one in a cardboard tube and one in a PVC tube. Both of the charges worked but the PVC charge was slightly more powerful as we predicted.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">With a working ejection system, we can put all of our focus on finishing our drone. The Argonia Cup is March 30 and 31st this year, about a week earlier than last year, but we will be ready.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Over and out,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Adam Vogel<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ejection Test\u00a0Videos Today we successfully tested our ejection system for the 2019 Argonia Cup. Before testing, we repaired a few cracks along the fins by sanding off the cracked epoxy and applying a new layer. While the epoxy dried we assembled the ejection charges. They consist of three grams of FFFFG black powder around an &hellip; <a href=\"https:\/\/rosi.siu.edu\/?p=323\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Project Update 2\/17\/2019&#8221;<\/span><\/a><\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-323","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/rosi.siu.edu\/index.php?rest_route=\/wp\/v2\/posts\/323","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rosi.siu.edu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rosi.siu.edu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rosi.siu.edu\/index.php?rest_route=\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/rosi.siu.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=323"}],"version-history":[{"count":4,"href":"https:\/\/rosi.siu.edu\/index.php?rest_route=\/wp\/v2\/posts\/323\/revisions"}],"predecessor-version":[{"id":332,"href":"https:\/\/rosi.siu.edu\/index.php?rest_route=\/wp\/v2\/posts\/323\/revisions\/332"}],"wp:attachment":[{"href":"https:\/\/rosi.siu.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=323"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rosi.siu.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=323"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rosi.siu.edu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}