Korea Featured Space Programs

[Nilgiri]

#perigeeaerospac #turbopumptest #powerpacktest #spacetech… | Perigee

Turbopump Water Flow Test Completed We have completed a Water Flow Test for the turbopump, verifying its stable operation under high-pressure and high-speed rotational conditions. This test was conducted to reduce system-wide risks and pre-validate the mechanical performance and reliability of...

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Perigee Turbopump Water Flow Test Completed

We have completed a Water Flow Test for the turbopump, verifying its stable operation under high-pressure and high-speed rotational conditions.

This test was conducted to reduce system-wide risks and pre-validate the mechanical performance and reliability of key components ahead of the currently ongoing Powerpack Test.

The next step will be an engine-level test that integrates the combustion chamber, valves, and turbopump. We plan to proceed with engine ignition and full propulsion system integration.

I always get a warm fuzzy feeling when I see the buckingham-pi theorem used in hands-on way.

Yes water is a fluid (just like gas) and lot cheaper to test with!....just need to make the appropriate dimensionless scaling parameters.

 

[urban mine]

(2nd LD) S. Korea successfully launches 4th spy satellite into orbit | Yonhap News Agency

(ATTN: RECASTS headline, lead; UPDATES details in paras 3-4)By Lee Minji SEOUL, April 22...

en.yna.co.kr

S. Korea successfully launches 4th spy satellite into orbit​

SEOUL, April 22 (Yonhap) -- South Korea successfully launched its fourth homegrown military spy satellite from a U.S. space base in Florida, the defense ministry said Tuesday, in efforts to strengthen its independent surveillance capabilities on North Korea.

The spy satellite lifted off at 8:48 p.m. Monday (U.S. time) from Cape Canaveral Space Force Station as planned and placed the reconnaissance satellite into orbit at 9:03 p.m., 15 minutes after liftoff, according to the ministry.

The launched satellite succeeded in communicating with an overseas ground station at 11:27 p.m., indicating the satellite's normal operation.

"This is anticipated to reinforce the grouped operation of the satellites, alongside the three satellites in normal operation, and enhance capabilities to detect signs of North Korea's provocations," the ministry said in a notice.

The synthetic aperture radar (SAR) satellite is the fourth military satellite launched under South Korea's plan to deploy five spy satellites by the end of this year to better monitor North Korea and help reduce its reliance on U.S. satellite imagery.

South Korea launched its first spy satellite in December 2023, equipped with electro-optical and infrared sensors capable of capturing detailed images. It launched two more last year with SAR sensors that collect data regardless of weather conditions.

South Korea aims to launch the fifth satellite, which will be equipped with SAR sensors, later this year. Once all five satellites are placed in orbit, the country is expected to be able to monitor North Korea every two hours.