Boeing tested the world's largest jet engine

The largest in the world with 3.4-meter diameter propellers was put into test flight by Boeing for the first time in California, USA.

The giant and high-altitude GE9X engine of the Boeing 737 is being built to equip the latest version of its 777 aircraft , the 777X "super-plane" , according to Long Room. Currently, General Electric is bringing the prototype into flight after several delays due to technical problems, causing the inspection plan to be delayed at the end of last year.

The GE9X is attached to the aircraft with smaller engines, allowing engineers to test engines in flight movements without endangering passengers in the cabin. The GE9X has a large propeller of 3.4 meters in diameter and is located in a 4.4 meter-wide engine cover.

The special Boeing 747 aircraft served a take-off test from Victorville, California, USA, and flew four hours with the GE9X engine under the left wing, far bigger than the other three engines. The flight marks the start of a trial that has been scheduled for the past few months.

The giant GE9X engine is as wide and tall as the Boeing 737.

The GE9X will be mounted , the largest wing span aircraft (71.8 m), larger than the four rear-mounted towing cars. The 777X is so big that Boeing has to design a wing-top coupling. The coupling will fold, allowing the aircraft to shorten the wingspan when rolling on the airport runway. This is the first commercial aircraft with this design. The wing tip has a 3.7-meter long coupling and the latch will prevent the coupling from collapsing during the flight, according to Boeing.

777-9X can carry at least 400 passengers, 34 more than the opponent of 777-9X is the Airbus A350-1000. 777-9X's cabin is 40 cm wider than the A350-1000, allowing the economy of economy class seats to be increased to 46 cm.

"The GE9X fabrication team and the test team in Victorville have spent months preparing to fly the engine test. Their efforts have been rewarded with the perfect first flight. The trial lasted several months, helping us gather data on how high-powered engines were and during different stages of the flight, " said Ted Ingling, general manager of GE9X program at GE Aviation. , said.

GE9X has a thrust of 445,000 N and GE has received more than 700 orders for engines worth $ 29 million. Boeing ordered GE to develop a powerful engine to operate the 777X aircraft to replace the old model. Ultra-high-temperature refractory materials in the combustion chamber and turbine can operate at temperatures up to 1,300 ° C. This material helps engineers maintain high temperatures inside the engine without burning fuel and without exhaust.

Achievements in 3D printing technology are also applied to new engines. Engineers can create more complex shapes including 3D print fuel nozzles. Currently, turbo propeller engines, manufactured by Rolls Royce, GE's main rival. Trent XWB-97 is a three-axis turbojet turbojet engine with 305cm rotor diameter and provides thrust 431,650 N.