Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Imwe yemichina mikuru yakaita kuti ndege yakakura seBoeing 747 igadziriswe yaiva injini ine turbofan inopfuura nokure. Injini yacho yaifungidzirwa kuva inokwanisa kugovera simba rakapetwa kaviri re turbojets dzapakuvamba ichishandisa mafuta mashoma nechikamu chimwe muzvitatu. General Electric yakanga yatanga pfungwa yacho asi yakanga yakazvipira kukudziridza injini yeC-5 Galaxy uye haina kupinda mumusika wekutengeserana kusvikira gare gare. Pratt & Whitney akanga achishandawo pamusoro chete nheyo uye, pakazopera 1966, Boeing, Pan Am uye Pratt & Whitney akabvumirana kukudziridza injini itsva, akasarudzwa ari JT9D kuti simba 747.The chirongwa chakagadzirirwa pamwe itsva methodology inonzi kukanganisa muti ongororo, izvo akabvumira migumisiro kukundikana chikamu chimwe chete kuti kudzidza kuona zvazvinoita pane dzimwe gadziriro. Kugadzirisa zvinetso pamusoro kuchengeteka uye flyability, 747 kuti magadzirirwo zvaisanganisira STRUCTURAL redundancy, redundant hydraulic hurongwa, quadruple huru kumhara giya uye hunyambiri kudzora hukawanika. Uyezve, zvimwe zvezvinhu zvemberi zvikuru zvinosimudza zvinoshandiswa muindasitiri zvakabatanidzwa mukugadzirwa kutsva, kuti zvibvumire kushanda kubva kunhandare dzendege dziripo. Izvi zvaisanganisira matanda aiva akareba anenge mapapiro ose, pamwe chete nemapapiro aiva nemativi matatu aiva nemipendero kumucheto kwepapiro. Mapapiro echikamu-matatu akaoma anowedzera nharaunda yebapiro ne 21 muzana uye kusimudza ne 90 muzana paanoshandiswa zvizere achienzaniswa nokugadziriswa kwavo kusina kushandiswa. Boeing akabvuma kugovera 747 yokutanga kuPan Am pakuguma kwa1969. Zuva rokugovera rakasiya mwedzi 28 yokugadzira ndege yacho, iyo yaiva zvikamu zviviri muzvitatu zvenguva dzose. Purogiramu yacho yakanga ichikurumidza zvikuru zvokuti vanhu vaishanda pairi vakapiwa zita remadunhurirwa rokuti "The Incredibles". Kugadzira ndege yacho kwakanga kuri chinetso chikuru chezvokugadzira zvinhu uye chemari zvokuti manejimendi akanzi "akabheja kambani" payakatanga basa racho.  Mubvunzo: Ndechipi chinhu chakapiwa kumidziyo yokusimudza yakakwirira nomugadziriro mutsva?
kubvumidza kuti ishande kubva kunhandare dzendege dziripo