South Korea Advances Rocket Engine Development Testing

23 May 2019 16:15
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January 29, 2005 Global automotive technology developer Prodrive has developed an exciting vehicle concept that can best be described as a four wheel motorcycle. The 75-ton-thrust engine was fired up and launched naro firing flame tube the first-stage rocket at the Naro Space Center in Goheung, South Jeolla Province, at 4 p.m., as part of the country's long-term project to launch the Korea Space Launch Vehicle-2 (KSLV-2), dubbed Nuri, in 2021.

Videos posted to the YouTube page of the Korea Aerospace Research Institute this week show full-duration firings of the country's seven-ton upper stage engine, following up on full-duration tests of a 75-metric-ton-force engine earlier this year to be used on KSLV's lower stages.

The launch is the first time in nearly five years that South Korea has showcased its active space program, following the launch of the KSLV-1 from the Naro in 2013. Remove the metering oil pump, eccentric shaft pulley, and water pump. Turn the front housing assembly with the rotor, so that the top of the housing is up. Pull the eccentric shaft about 1 in. (25mm).

Coat the new -ring with clean engine oil and install in each seal groove. Korea's space program has been in the spotlight recently, but kept a low profile for a time after successfully launching its first carrier rocket, the KSLV-I, or the Naro, in January 2013.

Hanwha believes the success of the Naro-1 will be the key for S. Korea's next push into the Global 7 group of aerospace leaders. On its launch — scheduled for 2021 — KSLV-2 will use five of the newly developed engines, a cluster of four for the first stage, another one for the second stage and a small, 7-ton thrust engine for the third stage, Lee said.

Slide the spacer and oil slinger onto the eccentric shaft. Place the rotor on the front housing, being careful not to drop the seals. Slide the balance weight, thrust washer and needle bearing from the shaft. The advanced thrust vector control system was another one of the core components of the space launch vehicle designed by Hanwha.

The rocket will be mounted on the Korea Space Launch Vehicle-2 (KSLV-2), also known as Nuri, which has been under development for eight years with a view to sending a satellite into orbit in 2021. On its launch — scheduled for 2021 — KSLV-2 will use five of the newly developed engines, a cluster of four for the first stage, another one for the second stage and a small, seven-tonne thrust engine for the third stage, Lee said.

A 7-ton engine that has yet to be tested will propel the third stage, SpaceTech Asia reported. 31 from the Naro Space Center in Goheung, South Jeolla Province, the Ministry of Science and ICT said. Rival North Korea put its first satellite into space in late 2012, a launch viewed by Seoul and Washington as a test of Pyongyang's long-range missile technology.

However, the impact of the 2013 launch was widely discounted because the launch vehicle had to depend on a Russian-developed engine for its first stage. At the time, designers considered installing four such engines, then known as MD-185, on the first stage of the Energia rocket, apparently, after facing serious technical problems in development of RD-170.

Vice Science Minister Lee Jin-gyu told journalists that the test vehicle was successfully launched and flight data that was collected showed the engine was functioning properly. The KSLV-II launch vehicle will be the first wholly indigenously designed and built rocket in South Korea and is expected to become the workhorse for all domestic satellite launches as well as used for commercial placement of satellites in to orbit.

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