S. Korea Starts Drawing up Plans for Next-generation Satellite Launch VehiclesWith testing of the engine for Korea Space Launch Vehicle-II (KSLV-II) slated for late this month, the South Korean government has begun to draw up plans to develop a next-generation satellite launch vehicle that will succeed KSLV-II.The government is going to develop an improved and lighter version of KSLV-II, while at the same time developing another version which is smaller and cheaper than KSLV-II.
Nuri test launch vehicle , launching on Nov. 28 - The final launch date should be confirmed after considering the weather conditions.□ The Ministry of Science and Technology (Ministry of Information and Communication) and the Korea Aerospace Research Institute (President Lim Cheol-ho, hereinafter referred to as "Woo-yun Lee") will hold the "3rd test launch project management committee" on November 13, Test launch vehicle. o The launch date has been determined in consideration of the technical preparation status of the development team and the schedule for overseas notification. o The final launch date and launch time will be determined at the close of the launch date due to future weather conditions, but if there is no problem with the preparation process, it will be carried out on the afternoon of November 28th. Also, considering the schedule change due to future climate conditions, the launch date will be set from Nov. 29 to Dec. 4....
SEOUL, Nov. 12 (Yonhap) -- South Korea is in talks with the United States over its pursuit of developing solid-fuel space vehicles for non-military purposes, Seoul's foreign ministry said Monday.Last year, the allies agreed to eliminate restrictions on the payload weight of South Korea's ballistic missiles in response to a series of North Korean provocations at that time. South Korea is allowed to develop ballistic missiles with a range of up to 800 kilometers."Currently, consultations are under way between South Korea and the U.S. in connection with lifting limits on the use of solid fuel for space vehicles to strengthen space development in the civilian sector," the Ministry of Foreign Affairs said.It did not provide more details, citing ongoing state-to-state negotiations on the sensitive matter....
Is the first stage of this test vehicle essentially the second stage of the planned KSLV-II? Or is it merely the same 2.6 meter diameter as the second stage? - Ed Kyle
Quote from: edkyle99 on 11/27/2018 05:32 pmIs the first stage of this test vehicle essentially the second stage of the planned KSLV-II? Or is it merely the same 2.6 meter diameter as the second stage? - Ed KyleIIRC it uses the same structure as the planned KSLV-II 2nd stage but uses only a single engine: https://forum.nasaspaceflight.com/index.php?topic=38220.20
Quote from: Galactic Penguin SST on 11/27/2018 10:16 pmQuote from: edkyle99 on 11/27/2018 05:32 pmIs the first stage of this test vehicle essentially the second stage of the planned KSLV-II? Or is it merely the same 2.6 meter diameter as the second stage? - Ed KyleIIRC it uses the same structure as the planned KSLV-II 2nd stage but uses only a single engine: https://forum.nasaspaceflight.com/index.php?topic=38220.20Right, but note that the KSLV-2 second stage will also only use one engine, albeit with either a vacuum-optimized engine version or with a nozzle extension. - Ed Kyle
Quote from: edkyle99 on 11/29/2018 09:10 pmQuote from: Galactic Penguin SST on 11/27/2018 10:16 pmQuote from: edkyle99 on 11/27/2018 05:32 pmIs the first stage of this test vehicle essentially the second stage of the planned KSLV-II? Or is it merely the same 2.6 meter diameter as the second stage? - Ed KyleIIRC it uses the same structure as the planned KSLV-II 2nd stage but uses only a single engine: https://forum.nasaspaceflight.com/index.php?topic=38220.20Right, but note that the KSLV-2 second stage will also only use one engine, albeit with either a vacuum-optimized engine version or with a nozzle extension. - Ed KyleThere is no sure way of knowing on a highly technical level but by infering from Korean media reports it seems like the TLV has a single first-stage/sea-level engine from the actual KSLV-2, identical propellant tank design and outer mold line to KSLV-2 second stage, a dummy payload on top that laregly resembles the outer mold line of the KSLV-2 stage 3 and fairing, and additional avionics/interfaces so it can be launched from the ground.
The KARI blog shows the TLV configuration. Half the rocket is just empty space.https://blog.naver.com/karipr/221407284696
Quote from: Lucid Nonsense on 11/29/2018 09:56 pmQuote from: edkyle99 on 11/29/2018 09:10 pmQuote from: Galactic Penguin SST on 11/27/2018 10:16 pmQuote from: edkyle99 on 11/27/2018 05:32 pmIs the first stage of this test vehicle essentially the second stage of the planned KSLV-II? Or is it merely the same 2.6 meter diameter as the second stage? - Ed KyleIIRC it uses the same structure as the planned KSLV-II 2nd stage but uses only a single engine: https://forum.nasaspaceflight.com/index.php?topic=38220.20Right, but note that the KSLV-2 second stage will also only use one engine, albeit with either a vacuum-optimized engine version or with a nozzle extension. - Ed KyleThere is no sure way of knowing on a highly technical level but by infering from Korean media reports it seems like the TLV has a single first-stage/sea-level engine from the actual KSLV-2, identical propellant tank design and outer mold line to KSLV-2 second stage, a dummy payload on top that laregly resembles the outer mold line of the KSLV-2 stage 3 and fairing, and additional avionics/interfaces so it can be launched from the ground.The official website mentions that the engine is supposed to be equivalent to the 2nd stage of the KSLV-II, but you are correct that it would be the sea-level version instead of the vacuum version due to the difference in the altitude where the engine would be lit.According to a Korean news article, there's currently a sea-level KARI 75-Ton engine #11 for the first stage, a vacuum KARI 75-Ton engine for the second stage, and a KARI 7-Ton engine #4 for the third stage currently installed in the test building for performance testing. So all three types of engines that go into the KSLV-II proper are already well into development.https://news.v.daum.net/v/20181130030106646Quote from: Steven Pietrobon on 11/30/2018 04:18 amThe KARI blog shows the TLV configuration. Half the rocket is just empty space.https://blog.naver.com/karipr/221407284696The top half is the mass simulator that weighs roughly 8 tons, which is supposed to accurately simulate the dimensions and the mass of the KSLV-II 3rd stage according to the official website. So it's not an empty space but a hunk of metal.https://kslvii.kari.re.kr/modedg/contentsView.do?ucont_id=CTX000005&srch_menu_nix=b1lD3n75
Quote from: Steven Pietrobon on 11/30/2018 04:18 amThe KARI blog shows the TLV configuration. Half the rocket is just empty space.https://blog.naver.com/karipr/221407284696The third stage was not ready and was decided to drop it from TLV (TLV-1). KARI if needed will make a second TLV launch (TLV-2) if they decide there is a need to test fly stage 3 before the first flight of KSLV-II (NURI)
Korea's staged combustion cycle rocket engine test (100s) On November 28, KSLV-II TLV was successfully launched to qualify Korea's 75tonf liquid-engine. So, now Korea has two gas generator cycle engines : KRE-007 & KRE-075. Now, a new engine is being developed to enhance performance : It's a Staged combustion cycle engine! It is more complex than gas generator cycle, but more efficient. So, it'll be used in the upper stage of future Korean launch vehicles.This video is showing the test (12/6) of the 9tonf staged combustion cycle engine, which was developed in Korea. (Maybe called as KRE-009?) Burn time was 100 seconds, which was success.Video credit = KARI
The first launch of the KSLV-II has been postponed to November 2021. The reason is: modification of the assembly procedure, delay in parts delivery, need for more time in stage assembly, and the need for Wet Dress Rehearsal. Second launch is May 2022.
A SUCCESSFUL hot fire test of KSLV-II first stage! 4 KRE-075 engines were fired simultaneously at the Naro Space Center. More info coming out soon
Today, at the Naroju Center, the second combustion test of the first stage propulsion engine of the Korean launch vehicle “Nuri” was held. The burning time in the first test was 30 seconds, whereas in this second test, it burned for 100 seconds.Through this test, we were able to confirm engine performance, such as propellant supplied to the engine normally and combustion proceeded stably. We ask for your support for the launch of Nuriho!
#Successful 2nd Comprehensive Combustion Test by the Nuri 1st Stage Engine!The combustion time in the first test was 30 seconds, but in this second test, combustion was conducted for 100 seconds, and the engine performance was confirmed, such as the propellant supplied to the engine normally and the combustion proceeded stably.
Korean-type launch vehicle Nuri, 1 step 100 second comprehensive combustion test success!Nuriho 1-stage QM 100 second comprehensive combustion test success!The combustion time of the first test was 100 seconds longer than 30 seconds, and the propellant was normally supplied to the engine and the combustion proceeded stably, confirming the engine performance.We ask for your support for the launch of Nuriho!
Four KRE-075 engines firing simultaneously for 125.5 seconds! This was the final hot fire test of KSLV-II first stage, and was a success!
Has a payload been announced for first launch?
KSLV-2 is scheduled to carry a satellite mock-up and the second launch scheduled for May next year is to include a demonstration satellite of less than 200 kg along with a micro cube set.
Nuri (KSLV-II) pathfinder rolled to pad.https://en.yna.co.kr/view/AEN20210601002651320Launch expected in October.
Quote from: GraniteHound92 on 06/01/2021 01:47 pmNuri (KSLV-II) pathfinder rolled to pad.https://en.yna.co.kr/view/AEN20210601002651320Launch expected in October.If the maiden launch of the the Nuri goes as planned, then South Korea will have launched a truly homegrown space launch vehicle, because the first stage of the Naro was built in Russia whereas the second stage was built in South Korea, and the South Koreans were shocked to see North Korea beat the South in putting a satellite into orbit.
https://twitter.com/Kor_Spaceflight/status/1435111252330700804QuoteWet Dress Rehearsal of the KSLV-II is completed! The vehicle is in good condition, and is now ready for flight. A small problem with the launch pad air pressure system is found, but there will be no change of the launch date. (October 21th)[dated September 7]
Wet Dress Rehearsal of the KSLV-II is completed! The vehicle is in good condition, and is now ready for flight. A small problem with the launch pad air pressure system is found, but there will be no change of the launch date. (October 21th)[dated September 7]
The second launch is scheduled for June 15, 2022:Z0196/22 NOTAMN Q) RKRR/QWMTT/IV/BO/W/000/999/3535N12700E999A) RKRR B) 2206150600 C) 2206231000E) TRIGGER NOTAM-AIRAC AIP SUP 8/22 WEF 1500 UTC 15 JUN 2022 TIL 1000 UTC 23 JUN 2022KOREA SPACE LAUNCH VEHICLE II(KSLV II) LAUNCHCREATED: 07 Apr 2022 02:16:00 SOURCE: RKRRYNYX
Apparently KSLV-II's 2nd launch has now been scheduled on June 15 (needs someone who reads Korean to confirm): https://twitter.com/kari2030/status/1497100491737923584
The Nuri (KSLV-2) rocket carried out its first successful orbital launch today. Is there any latest word on construction of the Nuri rocket scheduled for launch in December?
Is it possible that South Korea could increase the rate of production of Nuri rockets to 4 rockets pear year so as to allow the South to use homegrown SLVs to launch into orbit sophisticated spy satellites to spy on North Korea?
Hanwha Aerospace is awarded $212 million contract to lead the production of three Nuri (KSLV-II) in the next three years. Hanwha will also receive technology transfer from KARI
Hanwha Aerospace was finally confirmed as the Korean launch vehicle ( #누리호 ) system comprehensive company.Hanwha Aerospace will supervise the production of the Korean launch vehicle, perform overall management of companies participating in component manufacturing, participate in repeated launches of the Nuri, and receive related technology transfers such as launch operation.