Scoped under the name 747 Advanced, the stretch was launched as the 747-8 to reflect the naming convention around the number eight adopted for the 787 then in development.
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The 747-8 is externally similar to the 747-400, but it has a higher gross weight, a longer fuselage, a new higher-aspect-ratio wing, and new higher-bypass-ratio engines (see fig. 1).
The reason the 747–8 didn't do so was mainly because the trends of airlines changed and it came too late. To sum it up, airlines chose to either go for the 777–300ER because it was almost as large and was more guaranteed to be filled up, or they went for the A380 if they needed high capacity.
If Boeing does halt production, airlines will likely extend the service lives of their 747-8s beyond the typical lifespan of 25-30 years, Dimitroff says. “There is no equivalent replacement,” he says.
The 747's upper deck is a unique AvGeek mecca that enthusiasts should experience in the next few years before the remaining passenger variants are retired or converted to freighters.
Built in 1967 to produce the mammoth jet, it remains the world's largest manufacturing plant according to Boeing. But after five decades, customer demand for the 747 eroded as Boeing and Airbus (AIR.PA) developed more fuel efficient two-engine widebody planes.
Conclusion. While it's very clear that a 747 cannot fly properly with the failure of three engines, we can see that a single functioning engine would at least extend the aircraft's distance and prolong its time in the air. Hopefully, this would buy enough time and distance for the 747 to reach a suitable landing spot.
The oldest active 747 aircraft todayThe oldest passenger aircraft in commercial operation is Boeing 747-400 EP-MEE (SN 24383) operated by Mahan Air, a privately owned Iranian airline. IBA Insight Flights shows that this aircraft frequently makes trips between Tehran and Moscow, and last flew on 30th January 2023.