The 747-300 akatanga itsva yakarurama manera kuti yokumusoro uriri, pane chiuno masitepisi pamusoro yapfuura dzomutauro, izvo zvinoumba nzvimbo kumusoro uye pasi kuti zvakawanda zvigaro: Passage: The 747-300 ine 23-tsoka-4-padiki-refu (7.11 m) yokumusoro uriri pane -200. The akatambanudza yokumusoro uriri aigona vakapakata maviri nechimbichimbi panobuda mikova uye ndiyo inonyanya kuoneka musiyano pakati -300 uye yapfuura yokutevedzera. The akatambanudza yokumusoro uriri akanga kare inopiwa somunhu retrofit, uye akazviratidza maviri Japanese 747-100SR ndege. The 747-300 akatanga itsva yakarurama manera kuti yokumusoro uriri, pane chiuno masitepisi pamusoro yapfuura dzomutauro, iyo anosika nzvimbo kumusoro uye pazasi kuti zvakawanda zvigaro: Passage: Minor aerodynamic kuchinja akabvumira -300 wacho yose kumhanya kusvika Mach 0.85 zvichienzaniswa 0.84 pamusoro -200 uye -100, apo kuramba chete uremu. The akatambanudza yokumusoro uriri aigona vakapakata chete Pratt & Whitney uye Rolls-Roy
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