Its engines are the most powerful in the worldThe sole engine option on the 777-300ER is the General Electric GE90-115B, delivering approximately 115,000 pounds of takeoff thrust in each engine.
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The Boeing 777's twin-jet engines equal 175,000 horsepower. With this, our pilots can make this aircraft accelerate from 0 to 96 km/h in just 6 seconds. That's why the engine is listed as the most powerful jet engine in the Guinness Book of Records.
Early jet enginesThe engine intakes were small and an air hostess could barely squeeze in for a publicity photo. Boeing's first 747 jumbo had much bigger engines which produced about 45,000lbs of thrust. The most recent model, the 747-8, has engines that produce 66,000lbs of thrust.
The CFM International LEAP (Leading Edge Aviation Propulsion) engines are high-bypass ratio turbofan engines that power the Boeing 737 MAX family of aircraft. The -1B model of the engine has a thrust range of 23,000 - 28,000 Ibf (100-120 kN), with a maximum takeoff thrust of 29,320 If (130 kN).
“The Boeing 777's unique combination of superior range, outstanding fuel efficiency and passenger-preferred comfort has created long-range success for carriers around the world. And the 777-300ER now gives operators a perfect opportunity to extend that success.
All fixed-wing aircraft have some capability to glide with no engine power; that is, they do not fall straight down like a stone, but rather continue to glide moving horizontally while descending.
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.
For some airlines, the A380 offered too much capacity, while for Emirates, the airline can't get enough of the plane. Unfortunately for Emirates (and us passengers), the days of the Airbus A380 are numbered. Airbus stopped A380 production in 2021, as there weren't sufficient orders to keep production going.
A380s are designed to come to a complete stop using their brakes alone. Ultimately the decision was made to put reverse thrust on two engines to help minimize the risk of aquaplaning. But it was also decided that reverse thrust on all four of the A380 engines was definitely overkill.