Sentences with phrase «altitude of a jumbo jet»
First calculated by Indian mathematician Radhanath Sikdar, the summit of Everest, at 29,035 ft, is only just lower than the cruising altitude of a jumbo jet — between 30,000 ft and 36,000 ft.
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Virgin Atlantic has flown a jumbo jet on a combination of conventional jet fuel and biofuel made from palm oil, and a jet powered solely by biodiesel has stayed aloft for more than 30 minutes — albeit with a special device to keep its fuel from freezing at high altitude.