[앵커]
In addition to major equipment such as satellites and engines, the Nuri was loaded with a total of 360,000 parts.
More than 300 subcontractors who participated in making and verifying parts are fighting all-out to make the second launch of Nuri a success.
Correspondent Choi Min-ra.
[기자]
A factory in Sacheon, Gyeongsangnam-do,
Workers twist the wires like a twist to make a thick bundle.
It is Nuri’s neural network, ‘Wire Harness’ that connects projectile parts to send and receive signals.
It has to withstand extreme high temperatures of 3,300 degrees Celsius and cryogenic temperatures of minus 183 degrees Celsius, as well as severe vibrations, so it is made much stronger than ordinary wires.
[오상훈 / 카프마이크로 개발생산팀 부장 : 자제를 선정하는 데 있어 꾸준한 성능은 기본이지만 그런 환경의 변화에 대해서도 동일한 성능을 낼 수 있는 신뢰성이 확보된 자재를 선택하는 것들이 가장 최우선이었습니다.]
The antenna was installed in an enclosed space.
We create an environment similar to space and test whether the signal transmitted from one wall reaches the other side safely.
It is a navigation technology that will guide the flight path of the Nuri, and through this, the Nuri can exchange signals with the satellites and fly toward the target orbit even in extreme environments.
[주정갑 / 덕산넵코어스 선임연구원 : 1단 분리할 때 충격, 2단 분리 충격, 3단까지 충격이 오다 보니까 저희 장비들이 문제가 생길 수가 있어요. 그런 문제점을 해결하기 위해서 저희 기구적인 설계를 보강하든지 여러 가지 시험을 좀 더 해서….]
Performance tests to lead the second launch of the Nuri to a complete success were also conducted thoroughly.
It is a task to reproduce the problem of the fixed part of the helium tank, which was the cause of the failure of the first launch, to make improvements, and to verify the performance of the new model.
[지상연 / 한양이엔지 부장 : 다시 그 문제가 없는지 검증하는 시험평가 업무를 지원했습니다. 그래서 1차 발사에 문제가 됐던 부분은 개선됐던 것으로 시험 결과 확인되고 있고요.]
More than 300 private companies and 1,000 researchers!
There is no place that has not been touched by Nuriho, completed with pure Korean technology.
Our research team, who verified the technology accumulated during the first launch, is doing everything we can to lead the second launch to complete success.
This is YTN Science Choi Sora.
YTN Choi Sora ([email protected])
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