{"id":1151,"date":"2018-02-10T21:59:33","date_gmt":"2018-02-10T11:59:33","guid":{"rendered":"http:\/\/leederville.net\/rocket\/?p=1151"},"modified":"2018-02-10T22:01:02","modified_gmt":"2018-02-10T12:01:02","slug":"creating-sleeves-for-the-shock-cord","status":"publish","type":"post","link":"https:\/\/leederville.net\/rocket\/index.php\/2018\/02\/10\/creating-sleeves-for-the-shock-cord\/","title":{"rendered":"Creating sleeves for the Shock-Cord"},"content":{"rendered":"<p>I wanted to protect the shock-cords from the brutal heat of the ejection charge. I knew I can purchase nomex variants, but I didn&#8217;t have any place I could purchase them easily and I thought I&#8217;d try my chances and make something that might provide them &#8220;some&#8221; protection at minimal cost.<\/p>\n<p>The solution needs to provide some protection for a few flights. It doesn&#8217;t need to be so strong it will last 20 flights. i.e. something modest is satisfactory.<\/p>\n<h2>Materials<\/h2>\n<p>I did some research on materials and it seems that:-<\/p>\n<ul>\n<li>Wool is not flammable<\/li>\n<li>Cotton is probably not too bad a material at resisting fire.<\/li>\n<li>There are some Polyesters that are impregnated with some compounds that make them inflammable.<\/li>\n<\/ul>\n<p>I ended up finding a material that is a blend of Wool and Polyester &#8211; not perfect, but something that could provide some protection over 2 or 3 flights before requiring replacement.<\/p>\n<h2>Creating the sleeve<\/h2>\n<p>It was quite a simple process, however I thought it would be important to show some photos below of what I did.<\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_1155\" aria-describedby=\"caption-attachment-1155\" style=\"width: 300px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4565_Wool_polyester-Blend_Cut.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-1155\" src=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4565_Wool_polyester-Blend_Cut-300x225.jpg\" alt=\"Fabric is roughly cut out.\" width=\"300\" height=\"225\" srcset=\"https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4565_Wool_polyester-Blend_Cut-300x225.jpg 300w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4565_Wool_polyester-Blend_Cut-768x576.jpg 768w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4565_Wool_polyester-Blend_Cut-1024x768.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-1155\" class=\"wp-caption-text\">Fabric is roughly cut out.<\/figcaption><\/figure>\n<figure id=\"attachment_1156\" aria-describedby=\"caption-attachment-1156\" style=\"width: 300px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4566_wool_polyester_blend_pinned.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-1156\" src=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4566_wool_polyester_blend_pinned-300x225.jpg\" alt=\"Pinned the fabric length wise.\" width=\"300\" height=\"225\" srcset=\"https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4566_wool_polyester_blend_pinned-300x225.jpg 300w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4566_wool_polyester_blend_pinned-768x576.jpg 768w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4566_wool_polyester_blend_pinned-1024x768.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-1156\" class=\"wp-caption-text\">Pinned the fabric length wise.<\/figcaption><\/figure>\n<figure id=\"attachment_1157\" aria-describedby=\"caption-attachment-1157\" style=\"width: 300px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4567_Checking_dimensions.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-1157\" src=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4567_Checking_dimensions-300x225.jpg\" alt=\"Comparing pinned fabric with shock-cord to make sure the shock-cord will fit inside it.\" width=\"300\" height=\"225\" srcset=\"https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4567_Checking_dimensions-300x225.jpg 300w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4567_Checking_dimensions-768x576.jpg 768w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4567_Checking_dimensions-1024x768.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-1157\" class=\"wp-caption-text\">Comparing pinned fabric with shock-cord to make sure the shock-cord will fit inside it.<\/figcaption><\/figure>\n<figure id=\"attachment_1158\" aria-describedby=\"caption-attachment-1158\" style=\"width: 225px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4568_Starting_to_Sew-e1518263599556.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-1158\" src=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4568_Starting_to_Sew-e1518263599556-225x300.jpg\" alt=\"Sewing the sleeve with my sewing machine, using the pins as a guide and removing them as I approach them.\" width=\"225\" height=\"300\" srcset=\"https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4568_Starting_to_Sew-e1518263599556-225x300.jpg 225w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4568_Starting_to_Sew-e1518263599556-768x1024.jpg 768w\" sizes=\"(max-width: 225px) 100vw, 225px\" \/><\/a><figcaption id=\"caption-attachment-1158\" class=\"wp-caption-text\">Sewing the sleeve with my sewing machine, using the pins as a guide and removing them as I approach them.<\/figcaption><\/figure>\n<figure id=\"attachment_1159\" aria-describedby=\"caption-attachment-1159\" style=\"width: 300px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4570_All_Sewn.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-1159\" src=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4570_All_Sewn-300x225.jpg\" alt=\"Finished sewing sleeve.\" width=\"300\" height=\"225\" srcset=\"https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4570_All_Sewn-300x225.jpg 300w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4570_All_Sewn-768x576.jpg 768w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4570_All_Sewn-1024x768.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-1159\" class=\"wp-caption-text\">Finished sewing sleeve.<\/figcaption><\/figure>\n<figure id=\"attachment_1160\" aria-describedby=\"caption-attachment-1160\" style=\"width: 300px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4571_Trimmed_and_neat.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-1160\" src=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4571_Trimmed_and_neat-300x225.jpg\" alt=\"Trimmed the sewn sleeve - make it look neat.\" width=\"300\" height=\"225\" srcset=\"https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4571_Trimmed_and_neat-300x225.jpg 300w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4571_Trimmed_and_neat-768x576.jpg 768w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4571_Trimmed_and_neat-1024x768.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-1160\" class=\"wp-caption-text\">Trimmed the sewn sleeve &#8211; make it look neat.<\/figcaption><\/figure>\n<figure id=\"attachment_1161\" aria-describedby=\"caption-attachment-1161\" style=\"width: 300px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4572_Shock_Cord_in_Sleeve.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-1161\" src=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4572_Shock_Cord_in_Sleeve-300x225.jpg\" alt=\"Shock-cord in sleeve.\" width=\"300\" height=\"225\" srcset=\"https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4572_Shock_Cord_in_Sleeve-300x225.jpg 300w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4572_Shock_Cord_in_Sleeve-768x576.jpg 768w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4572_Shock_Cord_in_Sleeve-1024x768.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-1161\" class=\"wp-caption-text\">Shock-cord in sleeve.<\/figcaption><\/figure>\n<figure id=\"attachment_1162\" aria-describedby=\"caption-attachment-1162\" style=\"width: 300px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4573_Bowline_Knot_and_QuickLink.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-1162\" src=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4573_Bowline_Knot_and_QuickLink-300x225.jpg\" alt=\"Shock-Cord bowline knot around the Quicklink.\" width=\"300\" height=\"225\" srcset=\"https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4573_Bowline_Knot_and_QuickLink-300x225.jpg 300w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4573_Bowline_Knot_and_QuickLink-768x576.jpg 768w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4573_Bowline_Knot_and_QuickLink-1024x768.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-1162\" class=\"wp-caption-text\">Shock-Cord bowline knot around the Quicklink.<\/figcaption><\/figure>\n<figure id=\"attachment_1163\" aria-describedby=\"caption-attachment-1163\" style=\"width: 300px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4574_Sleeve_Covers_Bowline_Knot.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-1163\" src=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4574_Sleeve_Covers_Bowline_Knot-300x225.jpg\" alt=\"Sleeve fits snugly around the whole bowline knot. Later on, I use zip-ties to hold it in place and reduce chance of hot gases going up length of sleeve.\" width=\"300\" height=\"225\" srcset=\"https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4574_Sleeve_Covers_Bowline_Knot-300x225.jpg 300w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4574_Sleeve_Covers_Bowline_Knot-768x576.jpg 768w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4574_Sleeve_Covers_Bowline_Knot-1024x768.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-1163\" class=\"wp-caption-text\">Sleeve fits snugly around the whole bowline knot. Later on, I use zip-ties to hold it in place and reduce chance of hot gases going up length of sleeve.<\/figcaption><\/figure>\n<p>How does it fair?<\/p>\n<figure id=\"attachment_1164\" aria-describedby=\"caption-attachment-1164\" style=\"width: 300px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4651.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-1164\" src=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4651-300x225.jpg\" alt=\"The result of two ejection tests. This sleeve needs to be replaced.\" width=\"300\" height=\"225\" srcset=\"https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4651-300x225.jpg 300w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4651-768x576.jpg 768w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4651-1024x768.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-1164\" class=\"wp-caption-text\">The result of two ejection tests. This sleeve needs to be replaced.<\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_1166\" aria-describedby=\"caption-attachment-1166\" style=\"width: 300px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4652.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-1166\" src=\"http:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4652-300x225.jpg\" alt=\"Cut open of sleeve shows interior is fairly untouched. The Shock-Cord looks like it is relatively good health\" width=\"300\" height=\"225\" srcset=\"https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4652-300x225.jpg 300w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4652-768x576.jpg 768w, https:\/\/leederville.net\/rocket\/wp-content\/uploads\/2018\/02\/IMG_4652-1024x768.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-1166\" class=\"wp-caption-text\">Cut open of sleeve shows interior is fairly untouched. The Shock-Cord looks like it is relatively good health<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>I wanted to protect the shock-cords from the brutal heat of the ejection charge. I knew I can purchase nomex variants, but I didn&#8217;t have any place I could purchase them easily and I thought I&#8217;d try my chances and make something that might provide them &#8220;some&#8221; protection at minimal cost. The solution needs to &hellip; <a href=\"https:\/\/leederville.net\/rocket\/index.php\/2018\/02\/10\/creating-sleeves-for-the-shock-cord\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Creating sleeves for the Shock-Cord<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[20,15],"tags":[],"_links":{"self":[{"href":"https:\/\/leederville.net\/rocket\/index.php\/wp-json\/wp\/v2\/posts\/1151"}],"collection":[{"href":"https:\/\/leederville.net\/rocket\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/leederville.net\/rocket\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/leederville.net\/rocket\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/leederville.net\/rocket\/index.php\/wp-json\/wp\/v2\/comments?post=1151"}],"version-history":[{"count":4,"href":"https:\/\/leederville.net\/rocket\/index.php\/wp-json\/wp\/v2\/posts\/1151\/revisions"}],"predecessor-version":[{"id":1167,"href":"https:\/\/leederville.net\/rocket\/index.php\/wp-json\/wp\/v2\/posts\/1151\/revisions\/1167"}],"wp:attachment":[{"href":"https:\/\/leederville.net\/rocket\/index.php\/wp-json\/wp\/v2\/media?parent=1151"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/leederville.net\/rocket\/index.php\/wp-json\/wp\/v2\/categories?post=1151"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/leederville.net\/rocket\/index.php\/wp-json\/wp\/v2\/tags?post=1151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}