Technical

Crystal Icing and Aircraft Engine Testing

Aircraft engines are tested in different situations when making their first certification. These tests include cold air operation, icing and hail testing.

COLD WEATHER

In this test, the anti-ICE system of the aircraft engine is intended to see the icing status of the Fan blades, spinner and booster sections that are not protected against icing and to check the operating performance of the engine.

By creating weather conditions that will lead to icing, some parts of the engine are subjected to icing depending on the N1 revs. After this process, the speed of the engines is increased and the degree to which the icing is cleaned with the resulting temperature increase is controlled by observing.

In addition to this test, the condition of the engine is checked before the anti-ice system is activated or when the anti-ice system is activated late after icing occurs by the pilot, and the created ice fragments are thrown into the engine to create icing conditions.

HAIL EXPOSURE

Ice cubes 1.7-1.9 cm wide are launched into the aircraft engines, testing the operation and performance of the aircraft engine. From these controls, when the engine takat level is high, full clusters of 3 cm are launched and controlled. In these tests, the damage that may occur in the engine is evaluated and controlled.

ICE CRYSTAL AND ICING FORMED IN THE ENGINE

Icing in the engine is not fully explained. As a result of the research, it is believed that ice crystals were formed due to the fact that they ricocheted into the engines due to the inability to stick to the fuselage part of the aircraft. Crystals that hit and melt the compressor pales cool the surface of the pales and

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