Boeing’s new long-range airliner underwent an aborted takeoff test in the worst conditions: worn brakes, maximum weight, and temperatures exceeding 1,370 degrees Celsius.
Boeing announced that the 777-9 successfully completed the maximum brake energy test, one of the most rigorous stages of the certification program. This test is required to prove that the aircraft can safely stop in critical situations during takeoff rolls.
In the test, the aircraft was loaded to a maximum takeoff weight of approximately 350 tons, accelerated to approximately 190 knots, and then simulated an aborted takeoff. The aim is to recreate one of the most extreme situations an aircraft can face, such as a sudden engine failure just before takeoff.
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Boeing said the test was conducted under conditions that were intentionally pushed to the limit. The brakes used were in their most worn condition and were designed to simulate the worst case scenario. During braking, temperatures exceeded 1,370 degrees Celsius, exposing the wheels to extremely high temperatures.
As a result, the wheel’s protective fuse plug activated, relieving the pressure inside the tire. This system is designed to prevent tires from exploding due to overheating, thereby preventing damage to the aircraft and creating additional hazards in the event of passenger evacuation.
This type of evaluation is carried out by the US Civil Aviation AuthorityFAAThis is part of the certification process that Boeing is working with. The objective is to demonstrate that an aircraft can safely stop on a runway even under the most severe conditions when an aborted takeoff occurs.
According to the program team, the test was uneventful and represents an important step forward in the development and certification of the 777-9.
Photos and videos: Boeing. This content is created with the help of AI and reviewed by our editorial team.
