Surplus airplane engine - what is it? Under the definition should be understood the failure of the turbojet unit of an aircraft, the violation of the stability of its functioning. The characteristic signs of such a malfunction are the occurrence of popping, smoke, decreased traction, and powerful vibrations.
Surplus airplane engine - what is it? In essence, the root of the problem is the loss of a steady flow of air through the turbine. Without emergency measures, this may result in fire and engine damage.
Surplus engine aircraft: causes
Among the probable causes that can lead to a malfunction, it is worth highlighting:
- the conclusion of the aircraft on the transcendental trajectory, in which the engine is subjected to maximum load
- damage to the impeller blades due to the end of their service life or malfunction;
- hit in the engine of foreign objects;
- strong gusts of crosswind;
- critically low ambient pressure.
What solutions are used in aviation to prevent surge?
The use of several separate shafts in the design is the main solution that prevents the surge of the aircraft engine. What is it? The shafts in the engine move at different speeds, independently of each other. Each of them carries a part of the turbine and engine compressor. On modern aircraft, units are usually installed that contain 2-3 independent shafts. If one of them fails, the rest are able to maintain the thrust required to move the ship in airspace.
How to eliminate surge during the flight?
Surplus airplane engine - what is it? This phenomenon quickly leads to the destruction of the engine during flight. In the event of an emergency, the pilots transfer the engine to reduced speed or completely turn it off for a while. With the timely detection of a problem and the application of this approach, surge usually disappears on its own.
The increase in engine temperature during surge can be several hundred degrees per second. Therefore, fire fighting automation is installed on modern aircraft. It eliminates the fire, which gives the crew more time to make the right decisions. When the automation is triggered, an interruption or decrease in fuel supply occurs simultaneously.
The aircraft can be sent for some time in free peak, if there is a surge in the engine of the aircraft. What is it? All engines are shut off on board. The plane begins to gradually lose altitude until the fire is eliminated. Further, the fuel supply is restored in the engines and a return to normal flight mode occurs.
Finally
Motor surging can be quite a problem during flight. However, modern advances in science and technology make it possible to cope with this phenomenon. Today, airplanes are equipped with all kinds of warning devices for the crew, fire automatics, systems that timely shut down the unit and restart it.