Zvisinei, kunyanya zvakakomba mukuru-nokukurumidza flutter dambudziko chakagadziriswa chete nokuisa depleted uranium counterweights sezvo ballast ari outboard injini nacelles okutanga 747s. Zvisinei, dambudziko iri kunyanya zvakakomba mukuru-nokukurumidza flutter rakagadziriswa chete nokuisa depleted uranium counterweights sezvo ballast ari outboard injini nacelles okutanga 747s. Izvi zvaikonzera kunetseka apo ndege izvi yakadonha, somuenzaniso El Al Flight 1862 pa Amsterdam muna 1992 pamwe 282 makirogiramu (622 lb) kuti uranium ari tailplane (horizontal stabilizer). The ndege bvunzo chirongwa akanga kunetswa nezvinetso 747 raMwari JT9D injini. Zvinetso zvaisanganisira injini nokukurumidza kufamba uye kukanganisa turbine casings pashure pfupi nguva basa.
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