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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With a cruise TSFC value of 0.520 for the 777's GE90-85B2, the thrust can be anywhere between 18,300 and 8,600 lbf, per engine.
“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.
We have made it clear that the Boeing 777 can actually fly with one engine without much trouble. Whether it is fuel starvation, the fan blades, or any mechanical failure causing the engine to fail, if any of the jet engines fail, the remaining engine can help the plane fly safely.
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 GE90 for Boeing's 777 rotates at a maximum of 2,850 RPM for N1 and 10,850 RPM for N2. Another engine option for the 777 is the Rolls-Royce Trent 800 engine, which has similar speeds. The N1 speed of the Trent 800 engine is 3,300, N2 speed of 7,000 and N3 speed of 10,600 RPM.