{"id":1447,"date":"2024-04-02T10:48:59","date_gmt":"2024-04-02T10:48:59","guid":{"rendered":"https:\/\/knobgear.com\/?p=1447"},"modified":"2024-12-09T11:09:51","modified_gmt":"2024-12-09T11:09:51","slug":"unique-birotary-engine","status":"publish","type":"post","link":"https:\/\/knobgear.com\/cs\/unique-birotary-engine\/","title":{"rendered":"Unik\u00e1tn\u00ed Birota\u010dn\u00ed motor: \u0158e\u0161en\u00ed pro v\u00fdkonn\u00e9 pohonn\u00e9 jednotk\u00fd pro Ultralehk\u00e1 letadla"},"content":{"rendered":"<p class=\"wp-block-paragraph\">V neust\u00e1le se vyv\u00edjej\u00edc\u00edm sv\u011bt\u011b ultralehk\u00e9 leteck\u00e9 dopravy bylo v\u017edy v\u00fdzvou naj\u00edt vhodnou pohonnou jednotku. Zat\u00edmco elektrick\u00e1 \u0159e\u0161en\u00ed jsou \u010dasto proklamov\u00e1na jako budoucnost letectv\u00ed, realita je takov\u00e1, \u017ee sou\u010dasn\u00e1 kapacita bateri\u00ed a jejich hmotnost nesta\u010d\u00ed pokr\u00fdt ani z\u00e1kladn\u00ed po\u017eadavky ultralehk\u00e9ho letectv\u00ed a \u010din\u00ed dlouh\u00e9 lety nepraktick\u00fdmi a z\u00e1rove\u0148 zvy\u0161uje riziko hav\u00e1rie a po\u017e\u00e1r\u016f. Tradi\u010dn\u00ed p\u00edstov\u00e9 motory, naproti tomu nejsou optim\u00e1ln\u00ed z hlediska z\u00e1stavby a vibrac\u00ed. A pr\u00e1v\u011b zde p\u0159ich\u00e1z\u00ed na sc\u00e9nu nov\u00fd Birota\u010dn\u00ed motor. \u0158e\u0161en\u00ed, kter\u00e9 bylo navr\u017eeno speci\u00e1ln\u011b pro ultralehk\u00e1 letadla, bezpilotn\u00ed stroje a podobn\u00e1 za\u0159\u00edzen\u00ed.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/knobgear.com\/wp-content\/uploads\/2024\/04\/Birotary_engine-740x590-1.webp\" alt=\"Birotary engine\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/knobgear.com\/wp-content\/uploads\/2024\/04\/Birotary-engine-explode-1000x563-1.webp\" alt=\"Decomposition view of Rotary engine\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ultralehk\u00e1 letadla, jak ka\u017ed\u00fd v oboru v\u00ed, vy\u017eaduj\u00ed pohonn\u00e9 jednotky, kter\u00e9 jsou:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>V\u00fdkonn\u00e9:<\/strong> Vysok\u00e9 m\u011brn\u00e9 v\u00fdkonov\u00e9 parametry. To znamen\u00e1 vysok\u00fd v\u00fdkon v pom\u011bru k hmotnosti i objemu motoru.<\/li>\n\n\n\n<li><strong>Spolehliv\u00e9:<\/strong> Bezpe\u010dnost a spolehlivost jsou kl\u00ed\u010dov\u00e9.<\/li>\n\n\n\n<li><strong>Flexibiln\u00ed v pou\u017eit\u00ed paliv:<\/strong> Motory mus\u00ed efektivn\u011b spalovat jak biopaliva, syntetick\u00e1 paliva tak i vod\u00edk, aby podpo\u0159ily udr\u017eitelnost.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Sou\u010dasn\u00e1 elektrick\u00e1 \u0159e\u0161en\u00ed, a\u010dkoli maj\u00ed environment\u00e1ln\u00ed p\u0159\u00ednosy zejm\u00e9na v oblasti sn\u00ed\u017een\u00ed hluku a vibrac\u00ed, maj\u00ed v sou\u010dasn\u00e9 dob\u011b tak\u00e9 v\u00fdznamn\u00e1 omezen\u00ed. Hmotnost a energetick\u00e1 hustota dne\u0161n\u00edch bateri\u00ed \u010din\u00ed dlouh\u00e9 lety prakticky ne\u0159e\u0161iteln\u00e9. Nav\u00edc se zvy\u0161uje riziko po\u017e\u00e1r\u016f, jeliko\u017e sou\u010dasn\u00e9 baterie jsou ze sv\u00e9 podstaty v p\u0159\u00edpad\u011b po\u017e\u00e1ru neuhasiteln\u00e9, dokud nedojde ke kompletn\u00edmu vybit\u00ed nebo sho\u0159en\u00ed. Tradi\u010dn\u00ed p\u00edstov\u00e9 motory jsou z t\u011bchto d\u016fvodu st\u00e1le v kurzu, a to a\u0165 u\u017e jako hlavn\u00ed pohon, nebo jako takzvan\u00e9 Range extendry. St\u00e1le se toti\u017e jedn\u00e1 o levn\u00e9, spolehliv\u00e9 a odzkou\u0161en\u00e9 \u0159e\u0161eni.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Birota\u010dn\u00ed motor - nov\u00e1 pohonn\u00e1 jednota pro letectv\u00ed<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Birota\u010dn\u00ed motor se t\u011bmto v\u00fdzv\u00e1m stav\u00ed \u010delem a nab\u00edz\u00ed \u0159e\u0161en\u00ed p\u0159izp\u016fsoben\u00e9 specifick\u00fdm pot\u0159eb\u00e1m dne\u0161n\u00edho leteck\u00e9ho pr\u016fmyslu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Princip<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Birota\u010dn\u00ed motor je t\u0159\u00edv\u00e1lcov\u00fd z\u00e1\u017eehov\u00fd \u010dty\u0159dob\u00fd spalovac\u00ed p\u00edstov\u00fd motor. T\u0159i v\u00e1lce motoru jsou uspo\u0159\u00e1d\u00e1ny do \u201ehv\u011bzdy\u201c pod \u00fahlem 120\u00b0 a pohybuj\u00ed se v rotuj\u00edc\u00edm v\u00e1lcov\u00e9m bloku. V\u00e1lcov\u00fd blok se ot\u00e1\u010d\u00ed ve stacion\u00e1rn\u00ed sk\u0159\u00edni motoru, ve kter\u00e9 jsou um\u00edst\u011bny sac\u00ed a v\u00fdfukov\u00e9 kan\u00e1ly a zapalovac\u00ed sv\u00ed\u010dky. Tato sk\u0159\u00ed\u0148 je z\u00e1rove\u0148 tak\u00e9 hlava v\u00e1lce a obsahuje dv\u011b spalovac\u00ed m\u00edsta. Ka\u017ed\u00e9 spalovac\u00ed m\u00edsto je vybaven\u00e9 vlastn\u00edm sac\u00edm a v\u00fdfukov\u00fdm kan\u00e1lem a sadou zapalovac\u00edch sv\u00ed\u010dek. Rotuj\u00edc\u00ed v\u00e1lcov\u00fd blok z\u00e1rove\u0148 pln\u00ed funkci \u0161oup\u00e1tkov\u00e9ho rozvodov\u00e9ho mechanismu a zaji\u0161\u0165uje v\u00fdm\u011bnu n\u00e1pln\u011b ve v\u00e1lc\u00edch.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/knobgear.com\/wp-content\/uploads\/2024\/09\/Principle-of-function-of-the-KNOB-Birotary-engine-789x741-1.webp\" alt=\"Birotary engine principle\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Jak je z obr\u00e1zku v\u00fd\u0161e patrn\u00e9, tak b\u011bhem jedn\u00e9 ot\u00e1\u010dky bloku v\u00e1lc\u016f dojde v ka\u017ed\u00e9m v\u00e1lci ke dv\u011bma kompletn\u00edm spalovac\u00edm cykl\u016fm. Prvn\u00ed obr\u00e1zek ukazuje v\u00e1lec 1 v horn\u00ed \u00favrati p\u0159ed otev\u0159en\u00edm sac\u00edho kan\u00e1lu. Druh\u00fd obr\u00e1zek ukazuje dokon\u010den\u00ed sac\u00edho cyklu v\u00e1lce 1 (doln\u00ed \u00favra\u0165) a za\u010d\u00e1tek komprese. T\u0159et\u00ed obr\u00e1zek zobrazuje ve v\u00e1lci 1 za\u010d\u00e1tek expanze po z\u00e1\u017eehu. \u010ctvrt\u00fd obr\u00e1zek zobrazuje za\u010d\u00e1tek v\u00fdfuku ve v\u00e1lci 1.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00fdhody<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Velk\u00fd pom\u011br v\u00fdkonu k hmotnosti a objemu<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vy\u0161\u0161\u00ed pom\u011br v\u00fdkonu k hmotnosti Birota\u010dn\u00edho motoru vypl\u00fdv\u00e1 jak z n\u00e1r\u016fstu v\u00fdkonu na jednotku objemu, tak z redukce hmotnosti. Toto je dosa\u017eeno n\u00e1sleduj\u00edc\u00edmi konstruk\u010dn\u00edmi prvky:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Konstrukce s kr\u00e1tk\u00fdm zdvihem:<\/strong> umo\u017e\u0148uje dosa\u017een\u00ed vysok\u00fdch ot\u00e1\u010dek, p\u0159i\u010dem\u017e pr\u016fm\u011brn\u00e1 rychlost p\u00edstu z\u016fst\u00e1v\u00e1 v p\u0159ijateln\u00fdch mez\u00edch. Prototyp motoru m\u00e1 zdvih 37 mm a pr\u016fm\u011brnou rychlost p\u00edstu 12,3 m\/s p\u0159i 10 000 relativn\u00edch ot\u00e1\u010dk\u00e1ch klikov\u00e9ho h\u0159\u00eddele v\u016f\u010di bloku v\u00e1lc\u016f.<\/li>\n\n\n\n<li><strong>Velk\u00fd pr\u016f\u0159ezy sac\u00edch i v\u00fdfukov\u00fdch kan\u00e1l\u016f:<\/strong> zlep\u0161uje napln\u011bn\u00ed v\u00e1lc\u016f a sni\u017euje ztr\u00e1ty p\u0159i s\u00e1n\u00ed i v\u00fdfuku.<\/li>\n\n\n\n<li><strong>Vy\u0161\u0161\u00ed po\u010det sv\u00ed\u010dek ve spalovac\u00ed komo\u0159e:<\/strong> zaji\u0161\u0165uje kvalitn\u011bj\u0161\u00ed proho\u0159en\u00ed sm\u011bsi i ve vysok\u00fdch ot\u00e1\u010dk\u00e1ch.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Velk\u00e9 pr\u016f\u0159ezy sac\u00edch a v\u00fdfukov\u00fdch kan\u00e1l\u016f<\/h3>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/knobgear.com\/wp-content\/uploads\/2024\/09\/Engine-ports.webp\" alt=\"Intake and Exhaust port comparitio\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00edky \u0161oup\u00e1tkov\u00e9mu rozvodu je mo\u017en\u00e9 oproti b\u011b\u017en\u00fdm motor\u016fm v\u00fdrazn\u011b zv\u011bt\u0161it pr\u016f\u0159ezy sac\u00edch i v\u00fdfukov\u00fdch kan\u00e1l\u016f. V b\u011b\u017en\u00e9m \u010dty\u0159dob\u00e9m motoru se v pr\u016f\u0159ezu vrt\u00e1n\u00ed v\u00e1lce nach\u00e1zej\u00ed sac\u00ed a v\u00fdfukov\u00e9 ventily spole\u010dn\u011b se sv\u00ed\u010dkou a\/nebo vst\u0159ikova\u010dem. V Birota\u010dn\u00edm motoru p\u0159i rotaci bloku v\u00e1lc\u016f p\u0159ech\u00e1z\u00ed postupn\u011b p\u0159es kan\u00e1ly cel\u00e9 vrt\u00e1n\u00ed v\u00e1lce. Velikost pr\u016f\u0159ezu kan\u00e1lu m\u016f\u017ee b\u00fdt tedy daleko v\u011bt\u0161\u00ed ne\u017e pr\u016f\u0159ezy ventil\u016f v \u010dty\u0159ventilov\u00e9 hlav\u011b v\u00e1lc\u016f b\u011b\u017en\u00fdch motor\u016f. Vhodn\u00fdm tvarem kan\u00e1l\u016f se nav\u00edc \u0161oup\u00e1tko otev\u00edr\u00e1 a zav\u00edr\u00e1 rychleji ne\u017e tal\u00ed\u0159ov\u00fd ventil. To tak\u00e9 p\u0159isp\u00edv\u00e1 k jeho celkov\u00e9 lep\u0161\u00ed pr\u016ftokov\u00e9 charakteristice. \u0160oup\u00e1tkov\u00fd rozvod m\u016f\u017ee m\u00edt ze sv\u00e9ho principu mnohem vy\u0161\u0161\u00ed plnic\u00ed \u00fa\u010dinnost motoru, ne\u017e je tomu u b\u011b\u017en\u00fdch \u010dty\u0159dob\u00fdch motor\u016f. Bezventilov\u00fd rozvod je tak\u00e9 vhodn\u00fd ke spalov\u00e1n\u00ed vod\u00edku. N\u00ed\u017ee graf srovn\u00e1n\u00ed pr\u016ftokov\u00fdch parametr\u016f s b\u011b\u017en\u00fdm srovnateln\u00fdm p\u00edstov\u00fdm motorem.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/knobgear.com\/wp-content\/uploads\/2024\/04\/Comparison-of-flow-parameters-with-the-reference-engine-e1719494016685.webp\" alt=\"Birotary engine Intake and Exhaust port flow parameters\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">N\u00edzk\u00e9 vibrace<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Birota\u010dn\u00ed motor m\u00e1 pouze jeden \u010dep klikov\u00e9ho h\u0159\u00eddele a jeho p\u00edsty se pohybuj\u00ed v jedn\u00e9 rovin\u011b, a proto motor nepodl\u00e9h\u00e1 \u017e\u00e1dn\u00fdm pod\u00e9ln\u00fdm vibrac\u00edm, na rozd\u00edl od tradi\u010dn\u00edch \u0159adov\u00fdch p\u00edstov\u00fdch motor\u016f. Velmi kr\u00e1tk\u00fd zdvih vede k v\u00fdrazn\u011b ni\u017e\u0161\u00edm amplitud\u00e1m setrva\u010dn\u00fdch sil ve srovn\u00e1n\u00ed s tradi\u010dn\u00edm \u0159e\u0161en\u00edm s dlouh\u00fdm zdvihem. Hv\u011bzdicov\u00e9 t\u0159\u00edv\u00e1lcov\u00e9 uspo\u0159\u00e1d\u00e1n\u00ed m\u00e1 velmi mal\u00e9 nevyv\u00e1\u017een\u00e9 setrva\u010dn\u00e9 hmoty.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Birota\u010dn\u00ed proveden\u00ed motoru m\u00e1 z principu protib\u011b\u017en\u00fdch rota\u010dn\u00edch hmot v\u00fdhody vedouc\u00ed ke sn\u00ed\u017een\u00ed vibrac\u00ed. P\u0159i z\u00e1\u017eehu doch\u00e1z\u00ed ke zrychlen\u00ed klikov\u00e9 h\u0159\u00eddele a z\u00e1rove\u0148 doch\u00e1z\u00ed ke zrychlen\u00ed bloku v\u00e1lc\u016f opa\u010dn\u00fdm sm\u011brem. To v\u00fdrazn\u011b kompenzuje reak\u010dn\u00ed moment v ulo\u017een\u00ed motoru, a p\u0159i pou\u017eit\u00ed vhodn\u00e9ho torzn\u00edho tlumi\u010de mezi motorem a vrtul\u00ed je tato pohonn\u00e1 jednotka schopna dosahovat v\u00fdjime\u010dn\u00e9ho komfortu a n\u00edzk\u00fdch vibrac\u00ed p\u0159i provozu. Tato skute\u010dnost byla potvrzena p\u0159i prvn\u00edch letov\u00fdch zkou\u0161k\u00e1ch testovac\u00edm pilotem. V\u00edce na\u00a0<a href=\"https:\/\/knobgear.com\/cs\/birotary-engine\/birotary-engine-antivibration-property\/\">zde<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nov\u00e9 prvky konstrukce<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ut\u011bsn\u011bn\u00ed spalovac\u00edho prostoru p\u0159edstavuje naprosto z\u00e1sadn\u00ed konstruk\u010dn\u00ed \u00fakol, kter\u00fd je pot\u0159eba p\u0159i n\u00e1vrhu rota\u010dn\u00edho motoru spr\u00e1vn\u011b vy\u0159e\u0161it. Birota\u010dn\u00ed motor m\u00e1 patentovan\u00e9 t\u011bsn\u011bn\u00ed, kter\u00e9 je ulo\u017een\u00e9 ve statick\u00e9 sk\u0159\u00edni. Na t\u011bsn\u00edc\u00ed prvky nep\u016fsob\u00ed setrva\u010dn\u00e9 s\u00edly a s blokem v\u00e1lc\u016f maj\u00ed plo\u0161n\u00fd styk. Dobr\u00fd odvod tepla z t\u011bsn\u00edc\u00edch prvk\u016f je zaji\u0161t\u011bn chlazenou statickou sk\u0159\u00edn\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00edky dal\u0161\u00edm vylep\u0161en\u00edm, kter\u00e9 prob\u011bhly v pr\u016fb\u011bhu v\u00fdvoje jsme dos\u00e1hli v\u00fdpo\u010dtov\u00e9ho to\u010div\u00e9ho mementu, co\u017e potvrzuje dosa\u017een\u00ed kvalitn\u00edho ut\u011bsn\u011bn\u00ed spalovac\u00edho prostoru.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/knobgear.com\/wp-content\/uploads\/2024\/08\/Obrazek-patent.png\" alt=\"Birotary engine sealings\"\/><\/figure>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-3e41869c wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/knobgear.com\/cs\/birotary-engine\/birotary-engine-patents\/\">\u010c\u00edst v\u00edc<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Dosa\u017een\u00e9 miln\u00edky<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/knobgear.com\/wp-content\/uploads\/2024\/09\/Birotary-engine-integration-1000x786-1.webp\" alt=\"Aircraft installation of Unique Birotary engine\" style=\"object-fit:cover\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Dosavadn\u00ed v\u00fdvoj motoru prob\u011bhl ve firm\u011b KNOB Engines s.r.o. kde jsme dos\u00e1hli v\u00fdznamn\u00fdch miln\u00edk\u016f ve v\u00fdvoji.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Dosa\u017een\u00ed v\u00fdpo\u010detn\u00edho to\u010div\u00e9ho momentu:<\/strong> Po n\u011bkolikalet\u00e9m v\u00fdvoji jsme \u00fasp\u011b\u0161n\u011b dos\u00e1hli v\u00fdpo\u010detn\u00edch hodnot to\u010div\u00e9ho momentu, co\u017e znamen\u00e1, \u017ee n\u00e1\u0161 motor je schopen dos\u00e1hnout o\u010dek\u00e1van\u00fdch v\u00fdkonov\u00fdch parametr\u016f.<\/li>\n\n\n\n<li><strong>Integrace hybridn\u00ed pohonn\u00e9 jednotky:<\/strong> Vytvo\u0159ili jsme jedine\u010dnou hybridn\u00ed pohonnou jednotku a \u00fasp\u011b\u0161n\u011b jsme ji implementovali do letadla a provedli prvn\u00ed testovac\u00ed let, co\u017e dokl\u00e1d\u00e1 v\u0161estrannost a schopnosti motoru v re\u00e1ln\u00fdch podm\u00ednk\u00e1ch.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Pro\u010d pokra\u010dovat ve v\u00fdvoji a zvolit Birota\u010dn\u00ed motor?<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/knobgear.com\/wp-content\/uploads\/2024\/04\/birotary-engine-test-1000x750-1.webp\" alt=\"Birotary engine on test bench\" style=\"object-fit:cover\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Udr\u017eitelnost:<\/strong> Jak se leteck\u00fd pr\u016fmysl pohybuje sm\u011brem k udr\u017eitelnosti, je kl\u00ed\u010dov\u00e9 efektivn\u00ed vyu\u017e\u00edv\u00e1n\u00ed biopaliv a modern\u00edch syntetick\u00fdch e-paliv a vod\u00edku. Birota\u010dn\u00ed motor je navr\u017een s ohledem na budouc\u00ed paliva.<\/li>\n\n\n\n<li><strong>V\u00fdkon a n\u00edzk\u00e9 vibrace:<\/strong> D\u00edky vysok\u00e9mu pom\u011bru v\u00fdkonu k hmotnosti a n\u00edzk\u00fdm vibrac\u00edm motoru m\u00e1 integrace na\u0161eho motoru dobrou budoucnost v leteck\u00e9m pr\u016fmyslu. N\u00e1\u0161 koncept umo\u017e\u0148uje dos\u00e1hnou optim\u00e1ln\u00edho v\u00fdkonu a \u00fa\u010dinnosti i s pou\u017eit\u00edm budouc\u00edch leteck\u00fdch paliv.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Birota\u010dn\u00ed motor m\u00e1 potenci\u00e1l posunout pr\u016fmysl ultralehk\u00fdch letadel a UAV. Tento motor nab\u00edz\u00ed robustn\u00ed, \u00fa\u010dinn\u00e9 a v\u0161estrann\u00e9 \u0159e\u0161en\u00ed, kter\u00e9 spl\u0148uje modern\u00ed po\u017eadavky v letectv\u00ed. Dosavadn\u00ed v\u00fdvoj prokazuje potenci\u00e1l n\u00e1mi navr\u017een\u00e9 konstrukce Birota\u010dn\u00edho motoru.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pro v\u00edce informac\u00ed nav\u0161tivte&nbsp;<a href=\"https:\/\/knobgear.com\/cs\/\">www.knobgear.com<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>In the ever-evolving world of ultralight aviation, finding a suitable power unit has always been a challenge. While electric solutions are often touted as the future of aviation, the reality is that current battery capacity and their weight do not meet even the basic requirements of ultralight aviation. This makes long flights impractical and increases [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1981,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[5,12],"tags":[],"class_list":["post-1447","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knobgear-blog","category-birotary-engine"],"_links":{"self":[{"href":"https:\/\/knobgear.com\/cs\/wp-json\/wp\/v2\/posts\/1447","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/knobgear.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/knobgear.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/knobgear.com\/cs\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/knobgear.com\/cs\/wp-json\/wp\/v2\/comments?post=1447"}],"version-history":[{"count":4,"href":"https:\/\/knobgear.com\/cs\/wp-json\/wp\/v2\/posts\/1447\/revisions"}],"predecessor-version":[{"id":3357,"href":"https:\/\/knobgear.com\/cs\/wp-json\/wp\/v2\/posts\/1447\/revisions\/3357"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/knobgear.com\/cs\/wp-json\/wp\/v2\/media\/1981"}],"wp:attachment":[{"href":"https:\/\/knobgear.com\/cs\/wp-json\/wp\/v2\/media?parent=1447"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/knobgear.com\/cs\/wp-json\/wp\/v2\/categories?post=1447"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/knobgear.com\/cs\/wp-json\/wp\/v2\/tags?post=1447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}