{"id":838,"date":"2004-12-02T15:43:00","date_gmt":"2004-12-02T14:43:00","guid":{"rendered":"https:\/\/kids.esa.int\/spaceplanes\/"},"modified":"2026-10-08T00:32:50","modified_gmt":"2026-10-07T22:32:50","slug":"spaceplanes","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/spaceplanes\/","title":{"rendered":"Rymdflygplan"},"content":{"rendered":"
\n

Det finns olika s\u00e4tt att skjuta upp och flyga \u00e5teranv\u00e4ndbara rymdfarkoster.<\/p>\n

Rymdf\u00e4rjan anv\u00e4nder sina egna motorer, tillsammans med tv\u00e5 kraftfulla fastbr\u00e4nsleraketbooster, f\u00f6r att lyfta fr\u00e5n marken. Detta kallas ibland f\u00f6r \u2018single stage to orbit\u2019.<\/p>\n<\/div>\n

Ett problem med rymdfarkoster av typen Space Shuttle \u00e4r den extra vikt som br\u00e4nslet och raketmotorerna tillf\u00f6r. Trots detta m\u00e5ste Shuttle \u00e5terv\u00e4nda till jorden som en glidflygare. Den har inga jetmotorer och kan inte flyga runt f\u00f6r att g\u00f6ra ett nytt f\u00f6rs\u00f6k om den missar landningsbanan.<\/p>\n

Ett s\u00e4tt att minska rymdfarkostens storlek \u00e4r att l\u00e5ta den \u00e5ka med p\u00e5 ett annat fordon under en del av resan. Ett stort flygplan kan till exempel transportera ett rymdplan upp till en h\u00f6jd av 10 km. N\u00e4r rymdplanet befinner sig ovanf\u00f6r st\u00f6rre delen av atmosf\u00e4ren sl\u00e4pps det loss.<\/p>\n

Det g\u00e5r ocks\u00e5 att anv\u00e4nda en raket f\u00f6r att skjuta upp ett \u00e5teranv\u00e4ndbart rymdfarkost. I b\u00f6rjan av 1990-talet unders\u00f6kte ESA m\u00f6jligheten att skjuta upp ett litet rymdplan vid namn Hermes ovanp\u00e5 b\u00e4rraketen Ariane-5.<\/p>\n

Ett annat s\u00e4tt att minska vikten kan vara att anv\u00e4nda en ny generation motorer som utnyttjar luften i v\u00e5r atmosf\u00e4r under den f\u00f6rsta delen av stigningen. F\u00f6rst n\u00e4r farkosten n\u00e5r rymden skulle den \u00f6verg\u00e5 till raketdrift med hj\u00e4lp av det syre som finns ombord. Det kommer dock att dr\u00f6ja m\u00e5nga \u00e5r innan s\u00e5dana motorer finns tillg\u00e4ngliga.<\/p>","protected":false},"excerpt":{"rendered":"

There are various ways to launch and fly reusable spacecraft. The Space Shuttle uses its own engines, together with two powerful solid rocket boosters, to get off the ground. This […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2004\/12\/future_launchers5\/18249547-2-eng-GB\/Future_launchers.jpg","esa_banner_description":"","esa_banner_credit":"ESA-C. VIJOUX","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/12\/Future_launchers5","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,41,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-838","post","type-post","status-publish","format-standard","hentry","category-learn","category-rockets-technology","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/838","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/comments?post=838"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/838\/revisions"}],"predecessor-version":[{"id":1981,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/838\/revisions\/1981"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=838"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=838"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=838"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=838"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=838"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=838"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=838"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}