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[Anchor]
a bird collision caused by a collision between an aircraft in operation and a bird, called 'bird strike'
Even a small, slow-flying bird is shocked when it hits in the air, causing the aircraft to break down.Reporter Lim Null-sol tells you how much impact
'Bird Strike' has.
[Reporter]
a bird collision between a fast-flying aircraft and a slow-flying bird, called 'bird strike'
The collision with a small bird causes serious damage to the plane because of the amount of impact.
The change in momentum of an object proportional to mass and speed acts as an impact amount, and from the perspective of an airplane, a bird flies and collides at the same speed as an airplane.
If a bird of about 1kg hits a flying body at the average speed of 280km/h, it will be shocked by about 5 tons, and if it hits a large migratory bird of about 7kg, it will be shocked by 15.6 tons.
In addition, airplanes use a lot of synthetic materials to reduce their weight, making them thin and vulnerable to external shocks.
As a result, bird collisions not only break the cockpit windshield or tear the wings, but also cause failure as birds are sucked into the engine due to the nature of the jet engine that inhales air.
[Jang Young-geun / Professor of Aerospace Mechanical Engineering at Korea Aerospace University] The suction power is very strong in front of the engine. So birds are usually drawn into the engine as they fly around. When you go in, most of the time, there is a blade in the front.
It's either going to have a severe impact on the blade and damage it or it's going to make it stop now.]
Most bird crashes occur during take-off and landing.According to the statistics of bird collisions by altitude
, there is a 71% chance of a bird collision at an altitude of 152m or less close to the airport, and 83% at an altitude of less than 457m where take-off and landing are attempted.
Birds see their boundary range as about 30m due to their habits, and they do not avoid fast approaching planes in advance because they run away only when objects come close.
In addition, planes often use headwinds during take-off and landing, increasing the possibility of colliding with birds flying at take-off and landing altitude depending on the wind direction.
[Yum Geon-woong / Yuwon University Professor of Fire and Public Administration: Civil airports and military facilities that operate aircraft usually also make a lot of efforts to catch up with migratory birds. They actually set up a scarecrow. Some shoot horror bullets to scare birds away.]
Until the first half of last year, there were a total of 623 bird strikes reported in the country,
Various eradication methods have been attempted to reduce bird collisions that could lead to a massive disaster
, but a fundamental solution has yet to be found.
I'm YTN Science Lim Neul-sol.
Video editing:Hwang Yu-min
Design: Lim's Star
※ 'Your report becomes news'
[Kakao Talk] YTN Search and Add Channel
[Phone] 02-398-8585
[Mail] social@ytn.co.kr
[Copyright holder (c) YTN Unauthorized reproduction, redistribution and use of AI data prohibited]
a bird collision caused by a collision between an aircraft in operation and a bird, called 'bird strike'
Even a small, slow-flying bird is shocked when it hits in the air, causing the aircraft to break down.Reporter Lim Null-sol tells you how much impact
'Bird Strike' has.
[Reporter]
a bird collision between a fast-flying aircraft and a slow-flying bird, called 'bird strike'
The collision with a small bird causes serious damage to the plane because of the amount of impact.
The change in momentum of an object proportional to mass and speed acts as an impact amount, and from the perspective of an airplane, a bird flies and collides at the same speed as an airplane.
If a bird of about 1kg hits a flying body at the average speed of 280km/h, it will be shocked by about 5 tons, and if it hits a large migratory bird of about 7kg, it will be shocked by 15.6 tons.
In addition, airplanes use a lot of synthetic materials to reduce their weight, making them thin and vulnerable to external shocks.
As a result, bird collisions not only break the cockpit windshield or tear the wings, but also cause failure as birds are sucked into the engine due to the nature of the jet engine that inhales air.
[Jang Young-geun / Professor of Aerospace Mechanical Engineering at Korea Aerospace University] The suction power is very strong in front of the engine. So birds are usually drawn into the engine as they fly around. When you go in, most of the time, there is a blade in the front.
It's either going to have a severe impact on the blade and damage it or it's going to make it stop now.]
Most bird crashes occur during take-off and landing.According to the statistics of bird collisions by altitude
, there is a 71% chance of a bird collision at an altitude of 152m or less close to the airport, and 83% at an altitude of less than 457m where take-off and landing are attempted.
Birds see their boundary range as about 30m due to their habits, and they do not avoid fast approaching planes in advance because they run away only when objects come close.
In addition, planes often use headwinds during take-off and landing, increasing the possibility of colliding with birds flying at take-off and landing altitude depending on the wind direction.
[Yum Geon-woong / Yuwon University Professor of Fire and Public Administration: Civil airports and military facilities that operate aircraft usually also make a lot of efforts to catch up with migratory birds. They actually set up a scarecrow. Some shoot horror bullets to scare birds away.]
Until the first half of last year, there were a total of 623 bird strikes reported in the country,
Various eradication methods have been attempted to reduce bird collisions that could lead to a massive disaster
, but a fundamental solution has yet to be found.
I'm YTN Science Lim Neul-sol.
Video editing:Hwang Yu-min
Design: Lim's Star
※ 'Your report becomes news'
[Kakao Talk] YTN Search and Add Channel
[Phone] 02-398-8585
[Mail] social@ytn.co.kr
[Copyright holder (c) YTN Unauthorized reproduction, redistribution and use of AI data prohibited]