{"id":4399,"date":"2025-09-25T09:44:08","date_gmt":"2025-09-25T09:44:08","guid":{"rendered":"https:\/\/www.europesays.com\/ee\/4399\/"},"modified":"2025-09-25T09:44:08","modified_gmt":"2025-09-25T09:44:08","slug":"foto-spacex-saab-konkurendi-eurooplased-esitlesid-rootsis-oma-korduvkasutatavat-raketti","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ee\/4399\/","title":{"rendered":"FOTO | SpaceX saab konkurendi: eurooplased esitlesid Rootsis oma korduvkasutatavat raketti"},"content":{"rendered":"

Euroopa Kosmoseagentuur pani Rootsis Kirunasse \u00fcles esimese Euroopa korduvkasutatava raketi Themis demomudeli, mille eesm\u00e4rk on katsetada tehnoloogiaid raketietappide taastamiseks ja taaskasutamiseks. Themis on 30 meetrit k\u00f5rge ja l\u00e4bim\u00f5\u00f5t on 3,5 meetrit ning see on varustatud Prometheuse mootoriga, mida saab lennu ajal uuesti k\u00e4ivitada ja mille t\u00f5ukej\u00f5udu on v\u00f5imalik reguleerida, et tagada ohutu maandumine. Mootor kasutab k\u00fctusena vedelat metaani, mida peetakse \u00f6konoomseks ja t\u00f5husaks k\u00fctuseks. Esimene l\u00fchike test on plaanis l\u00e4bi viia 2025. aasta l\u00f5pus, mis t\u00e4histab olulist sammu Euroopa enda korduvkasutatava kosmosetehnoloogia suunas, milles seni on domineerinud SpaceX.<\/p>\n

\"Themise <\/p>\n

Esimesed katsed korduvkasutatavate rakettidega tehti juba 20. sajandi teises pooles, kuid l\u00e4bimurdeline areng toimus NASA Space Shuttle\u2019i programmiga, mis kestis aastatel 1981\u20132011. T\u00f5eline tehnoloogiline ja kommertsedu saabus 2010. aastatel t\u00e4nu SpaceX-i Falcon 9 raketile, mille esimene aste suudab p\u00e4rast lendu tagasi Maale maanduda ja uuesti startida. Viimastel aastatel on korduvkasutatavate rakettide arendamisega liitunud ka teised riigid ja kosmoseagentuurid, sealhulgas Euroopa Kosmoseagentuur oma Themis programmiga.<\/p>\n

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