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это? Более зеленый, более тихий?Boeing said that the new design would be quieter, more economical, and more environmentally friendly than previous versions of the 747.
The 747-8F is to have more payload capacity but less range than the current 747-400ERF. When Boeing launched the −400ERF, all of the 35,000 lb (16,000 kg) increase over the 747-400F's maximum take-off weight (MTOW) of 875,000 lb (397,000 kg) allowed for greater range with the same landing weight as the 747-400F. Cargo carriers often move machinery or indivisible loads that require a higher payload and landing capability. As is common with cargo planes, range is given with maximum payload, not maximum fuel. The 747-8's 65,000 lb (29,000 kg) MTOW increase over the -400ERF has been directed exclusively to its Zero-Fuel weight or payload capacity. If taking off at maximum payload, the 747-8 takes off with its tanks not full. On trips where the payload is not at maximum, the plane can take on more fuel and extend its range.
> Стремно на 2-х движках летать...
На ПС-90А - да, стрёмно. На CFM\R&R\GE\P&W - какие проблемы ? У ETOPS'ов вообще хоть один двойной отказ был в реальной жизни ?
И соответствующую сертификацию получить не может в принципе.