Ars Technica's weekly installment of Rocket Report: SpaceX gets Moon launches, South Korean rocket, BE-4 wins says:
South Korea to test first-stage engine. The Korea Aerospace Research Institute says it is making progress on its first indigenous rocket, the KSLV-II, which could be ready for flight by 2021. The agency has announced that the next step will come between October 25 and 31, when it performs an in-flight test of a single kerosene-fueled engine. During the test, the single-engine booster is expected to reach an altitude of about 100km for a suborbital flight, Yonhap reports.
An important test ... The current design for the KSLV-II rocket calls for four of these engines to power the first stage and a single engine for the second stage. With this program, South Korea seeks to develop a low-cost booster capable of lifting up to 1.5 tons to low-Earth orbit. The government hopes to use it for its own purposes, as well as make it available for commercial launches.
The linked article from Yonhap News Agency (LEAD) S. Korea to test-launch rocket in Oct. says (in part):
SEOUL, Sept 16 (Yonhap) -- South Korea plans to conduct the first test flight of its locally developed booster engine at the end of next month, the ICT ministry said Sunday, as part of a long-term effort to produce the Korea Space Launch Vehicle-2 (KSLV-2), a three-stage rocket.
The single-stage rocket, with a 75-ton thrust engine, developed by the Korea Aerospace Research Institute (KARI) is set to be launched between Oct. 25 and Oct. 31 from the Naro Space Center in Goheung, South Jeolla Province, the Ministry of Science and ICT said.
It said the launch date has been set after examining all variables and that related countries and agencies, such as the International Civil Aviation Organization and International Maritime Organization, will be notified in advance
"Barring any unforeseen developments, the launch should take place on the primary date of Oct. 25," the ministry said.
The rocket will fly for about 10 minutes, during which the performance of the new engine, control system and other parts will be monitored, the ministry said. It is expected to attain a sub-orbital altitude of over 100 kilometers some 160 seconds after launch and reach its apogee 300 seconds into the flight, before hitting international waters between South Korea's Jeju Island and Japan's Okinawa Island.
Question: Where can I read further on the specs the South Korean engine for next month's sub-orbital test?
A reverse image search from the graphic in the Yonhap article lead me here to a larger version of the image but I can't read the article. I don't even know the name of the engine, in any language.
below: from here