{"data":{"id":1829,"lang":"cs","title":"Letoun NASA X-59 letos v cervnu poprve prolomi zvukovou barieru, misto rachotu chce vydat tichy „zuk\"","summary":"NASA ocekava, ze jeji tichy nadzvukovy letoun X-59 zacatkem cervna poprve prekroci rychlost zvuku; misto tresku chce vydavat tichy zuk, ktery by mohl uvolnit zakazy nadzvukovych letu nad pevninou.","category":"science","category_label":"Věda","published_at":"2026-06-02T02:01:27Z","updated_at":"2026-06-02T02:01:27Z","url":"https://techtools.cz/tools/news/clanek/1829-letoun-nasa-x-59-letos-v-cervnu-poprve-prolomi-zvukovou-barieru-misto-rachotu","api_url":"https://techtools.cz/news-api/v1/articles/1829?lang=cs","markdown_url":"https://techtools.cz/news-api/v1/articles/1829.md?lang=cs","image_url":"https://www.nasa.gov/wp-content/uploads/2026/05/afrc2026-0115-42.jpg","word_count":176,"reading_time_minutes":1,"sources":[{"url":"https://www.nasa.gov/centers-and-facilities/armstrong/nasas-x-59-prepares-for-first-supersonic-flight/","domain":"nasa.gov"},{"url":"https://www.space.com/technology/aerospace/nasas-x-59-jet-is-ready-to-break-the-sound-barrier-for-the-1st-time-this-month","domain":"space.com"},{"url":"https://www.sciencedaily.com/releases/2026/06/260601025338.htm","domain":"sciencedaily.com"}],"translation":{"lang":"en","id":1756,"title":"NASA's X-59 Set to Break the Sound Barrier for the First Time This Month, Targeting a Quiet 'Thump' Instead of a Boom","url":"https://techtools.cz/tools/news/article/1756-nasa-s-x-59-set-to-break-the-sound-barrier-for-the-first-time-this-month","api_url":"https://techtools.cz/news-api/v1/articles/1756?lang=en"},"content":"Experimentalni letoun NASA X-59 ma zacatkem cervna poprve preletet rychlost zvuku, kdyz pri serii testovacich letu v centru Armstrong Flight Research Center v Kalifornii prekroci 630 mil za hodinu ve vysce zhruba 43 000 stop. Na nej navaze let v „misijnich podminkach\", pri nemz letoun dosahne rychlosti Mach 1,4 (asi 925 mil za hodinu) ve vysce 55 000 stop.\n\nElegantni letoun je navrzen tak, aby hromovy zvukovy tresk nahradil mekkym „zukem\" ne hlasitejsim nez zabouchnuti dveri auta — kolem 75 EPNdB oproti rachotu 105-110 EPNdB, jaky vydaval vyrazeny Concorde. Jeho prodlouzena spicka a tvarovany trup rozptyluji razove vlny drive, nez dorazi k zemi, a letoun nema vubec zadne predni okno: piloti ridi podle obrazu z vnejsi kamery zobrazeneho na displeji s rozsirenou realitou.\n\n„Co prijde dal, je vubec prvni supersonicky let tohoto jedinecneho letounu,\" uvedla vedouci projektu Cathy Bahmova. NASA planuje s X-59 preletet nad nekolika americkymi mesty a shromazdit reakce verejnosti v nadeji, ze data presvedci regulacni urady ke zruseni desetileti starych zakazu nadzvukovych letu nad pevninou a otevrou cestu nove generaci rychlych dopravnich letadel."}}