{"id":4997,"date":"2013-10-21T15:26:25","date_gmt":"2013-10-21T15:26:25","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=4997"},"modified":"2013-10-21T15:26:25","modified_gmt":"2013-10-21T15:26:25","slug":"copenhagen-suborbitals-a-flaw-found-in-the-parachute-deployment-scheme","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=4997","title":{"rendered":"Copenhagen Suborbitals: A flaw found in the parachute deployment scheme"},"content":{"rendered":"<p>Nothing like experiment to show that a great theory sucks:\u00a0<a href=\"http:\/\/www.wired.com\/wiredscience\/2013\/10\/in-space-no-one-can-hear-your-nitrocellulose-explode\/\" target=\"_d\">In Space No One Can Hear your Nitrocellulose Explode &#8211; Wired Science<\/a>.<\/p>\n<p>A video of tests illustrating why nitrocellulose is not suitable to blow open a rocket&#8217;s parachute container at high altitudes:<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"1600\" height=\"900\" src=\"https:\/\/www.youtube.com\/embed\/QnDZ_cO5Ln4?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nothing like experiment to show that a great theory sucks:\u00a0In Space No One Can Hear your Nitrocellulose Explode &#8211; Wired Science. A video of tests illustrating why nitrocellulose is not suitable to blow open a rocket&#8217;s parachute container at high altitudes:<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[35,5,9],"tags":[],"class_list":["post-4997","post","type-post","status-publish","format-standard","hentry","category-diy-space","category-rockets","category-science-and-technology"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-1iB","jetpack-related-posts":[{"id":1500,"url":"https:\/\/hobbyspace.com\/Blog\/?p=1500","url_meta":{"origin":4997,"position":0},"title":"Mar orbiter images Curiosity parachute flapping in the wind","author":"TopSpacer","date":"April 3, 2013","format":false,"excerpt":"The Mars Reconnaissance Orbiter spots the parachute used to bring the Curiosity rover onto the Red Planet surface: Mars Science Laboratory: Used Parachute On Mars Flaps In The Wind Curiosity's Parachute Flapping in the Wind This sequence of seven images from the High Resolution Imaging Science Experiment\u00a0 (HiRISE) camera on\u2026","rel":"","context":"In &quot;Space Science&quot;","block_context":{"text":"Space Science","link":"https:\/\/hobbyspace.com\/Blog\/?cat=13"},"img":{"alt_text":"PIA16813-br","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2013\/04\/PIA16813-br.gif?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":7274,"url":"https:\/\/hobbyspace.com\/Blog\/?p=7274","url_meta":{"origin":4997,"position":1},"title":"Video: Testing a Mars supersonic parachute is complicated","author":"TopSpacer","date":"April 10, 2014","format":false,"excerpt":"As part of NASA's\u00a0Low-Density Supersonic Decelerator\u00a0program, an unusual test of a Mars parachute design was carried out that involved creating a \u00a0\"wind tunnel\" with, among other things,\u00a0a helicopter, a winch, and a rocket sled. http:\/\/youtu.be\/9h1NtQJ59kM","rel":"","context":"In &quot;Science and Technology&quot;","block_context":{"text":"Science and Technology","link":"https:\/\/hobbyspace.com\/Blog\/?cat=9"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/9h1NtQJ59kM\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3000,"url":"https:\/\/hobbyspace.com\/Blog\/?p=3000","url_meta":{"origin":4997,"position":2},"title":"Copenhagen Suborbitals: Sapphire launch report","author":"TopSpacer","date":"June 24, 2013","format":false,"excerpt":"The Copenhagen Suborbitals team is thrilled by yesterday's successful launch and flight of the Sapphire actively guided rocket : Launch Success of Active Guided Rocket Sapphire \u2013 Next Stop Space - Wired Science\/Wired.com. The parachute deployment problem is understood and the sinking of the rocket into the ocean is a\u2026","rel":"","context":"In &quot;Activism&quot;","block_context":{"text":"Activism","link":"https:\/\/hobbyspace.com\/Blog\/?cat=3"},"img":{"alt_text":"sapphire_launch_850_bt_500x294","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2013\/06\/sapphire_launch_850_bt_500x294.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":15825,"url":"https:\/\/hobbyspace.com\/Blog\/?p=15825","url_meta":{"origin":4997,"position":3},"title":"Videos: Lots of rockets flying this week","author":"TopSpacer","date":"April 6, 2018","format":false,"excerpt":"A sampling of the rockets flying this past week: ** Virgin Galactic's SpaceShipTwo \"Unity\" flew under its own rocket power for the first time on Thursday when it fired its hybrid motor\u00a0 (solid fuel + liquid oxidizer) after dropping from the WhiteKnightTwo carrier airplane:\u00a0VSS Unity First Powered Flight: A major\u2026","rel":"","context":"In &quot;Rockets&quot;","block_context":{"text":"Rockets","link":"https:\/\/hobbyspace.com\/Blog\/?cat=5"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/8s-zY86Ec-I\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":7202,"url":"https:\/\/hobbyspace.com\/Blog\/?p=7202","url_meta":{"origin":4997,"position":4},"title":"Skydiver images meteoroid flying past him during jump","author":"TopSpacer","date":"April 3, 2014","format":false,"excerpt":"A reader points me to this unusual story of a near-miss in the sky:\u00a0Skydiver nearly struck by meteorite - NRK\/Viten [ Update Apr.8: Phil Plait now think it was just a rock bound up inside the parachute of the other skydiver :\u00a0Skydiving meteorite: It was a rock. - Bad Astronomy\/Slate.com.\u2026","rel":"","context":"In &quot;Asteroids &amp; Comets&quot;","block_context":{"text":"Asteroids &amp; Comets","link":"https:\/\/hobbyspace.com\/Blog\/?cat=75"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/jfEdEIwhj6s\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":12516,"url":"https:\/\/hobbyspace.com\/Blog\/?p=12516","url_meta":{"origin":4997,"position":5},"title":"Video: &#8216;Rockets Up, Up and Away!&#8217; &#8211; NASA student launch competition","author":"TopSpacer","date":"April 20, 2016","format":false,"excerpt":"Here is some video of rockets flying at the\u00a0NASA Student Launch competition, which took place last week: On April 16, NASA\u2019s Marshall Space Flight Center hosted the 16th annual Student Launch competition in Huntsville, Alabama. During the event student-designed and built rockets were launched in an effort to reach an\u2026","rel":"","context":"In &quot;Education&quot;","block_context":{"text":"Education","link":"https:\/\/hobbyspace.com\/Blog\/?cat=22"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/ve8WN_cVMkw\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/4997","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4997"}],"version-history":[{"count":1,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/4997\/revisions"}],"predecessor-version":[{"id":4998,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/4997\/revisions\/4998"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4997"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4997"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4997"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}