Korea Space Launch Vehicle

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Naro-1 on the launch pad

Korea Space Launch Vehicle ( KSLV ) is the name of a series of South Korean launch vehicles that are being developed by the Korea Aerospace Research Institute (KARI). In addition to the KSLV-I ( Naro ) model, which has already been launched , the KSLV-II ( Nuri ) is under development. The KSLV-III is also planned.

KSLV-I

history

Since 2002, South Korea has been planning to build the KSLV-I carrier rocket on the basis of the independently developed sounding rocket KSR in order to be able to transport small satellites weighing up to 100 kilograms into space. But the South Korean government soon set the goal of placing South Korea among the ten leading space nations by 2015. In order to achieve the ambitious plans, the original KSLV program was too limited by the use of the technology of the small KSR. As a result, at the end of 2004, the Russian space company GKNPZ Khrunichev was commissioned to develop the first stage of the KSLV-I, which is now to be based on the much larger Angara . The solid-propelled second stage of the rocket is being built by South Korea. The launch facility Naro Space Center on the island of Oenaro is being built by Russia. The launch mass of the KSLV-I is 127.5 tons, the payload capacity should be 100 kg for an 800 × 1,500 km orbit with an inclination of 80 °. The first launch took place on August 25, 2009, but was only partially successful.

Starts

The first launch of the KSLV-I was scheduled for July 2009, then was delayed until August after a problem with a pump in the first rocket stage was discovered. The first launch took place on August 25, 2009 at 08:00 UTC (17:00 KST ) from the Naro Space Center . The launch vehicle had the STSAT-2A communications satellite on board as its payload . The launch initially went according to plan, but one of the payload fairing halves did not separate from the upper rocket stage. Because of the excessive weight and control problems, no orbital velocity was achieved. The satellite presumably re-entered the earth's atmosphere shortly afterwards and was destroyed there. This first launch of a Korean launcher was described by South Korean government officials as "partially successful".

The next launch of a Naro-1 launcher with the STSAT-2B satellite was initially planned for June 9, 2010, but had to be postponed at short notice due to a problem with the fire extinguishing system. The following day, the rocket lifted off as planned, but radio contact was lost after 137 seconds. It is believed that the rocket exploded at a height of 70 km.

The third launch of the KSLV-1 was planned for November 29, 2012; it was canceled at short notice due to problems with the second stage. It took place on January 30, 2013. The stage manufactured in April 2008 approached the guaranteed storage period of five years; then a detailed examination of all parts would have been necessary.

KSLV-II

The KSLV-II is scheduled to start for the first time in 2021. Their planned payload capacity is 2,600 kg for low earth orbits (LEO) and 1,500 kg for sun synchronous orbit (SSO) at an altitude of 700 kilometers.

KSLV III

The KSLV-III is planned in two versions - one for payloads up to 10 t LEO and 3 t GTO , and a stronger one up to 18 t LEO and 6 t GTO.

Start list

flight variant Start date Launch site payload Remarks
1 Naro-1 August 25, 2009
08:00 UTC 		Naro Space Center STSAT-2A Failure One of the payload fairing halves did not separate from the missile, preventing the upper stage with the payload from reaching orbit.
2 Naro-1 June 10, 2010 Naro Space Center STSAT-2B Failed explosion 137 seconds after start due to faulty intake valve
3 Naro-1 January 30, 2013 Naro Space Center STSAT-2C success

Web links

Commons : KSLV  - collection of images, videos and audio files

Individual evidence

  1. ↑ Pump Malfunction Causes Fresh Naro Launch Delay. Chosun Ilbo, August 7, 2009, accessed August 7, 2009 .
  2. ↑ (3rd LD) S. Korean satellite lost shortly after launch: gov't . Yonhaps, August 26, 2009.
  3. ^ S Korean launch 'partial success' , BBC News, August 25, 2009, accessed August 25, 2009
  4. ^ South Korean rocket launch delayed. BBC, June 9, 2010, accessed June 10, 2010 .
  5. ↑ Naro launcher apparently crashed. KBS, June 10, 2010, accessed June 10, 2010 .
  6. ↑ Byun Duk-kun: (News Focus) (Naro) Successful rocket launch opens new chapter for S. Korea. In: Yonhap . January 30, 2013, accessed February 2, 2013 .
  7. ^ South Korea advances Rocket Engine Development Testing for KSLV-II Rocket. In: spaceflight101.com. October 6, 2016, accessed March 11, 2019 .
  8. ^ Nuri (KSLV-2). In: Gunter's Space Page. Retrieved March 11, 2019 .
  9. ^ Korean Space Program - Introduction. In: globalsecurity.org. Retrieved March 11, 2019 .
  10. ^ Twitter message from South Korean Spaceflight News , December 10, 2018.
  11. ^ Ed Kyle: Year to date orbital space launch log. In: Space Launch Report. January 10, 2010, accessed April 3, 2010 .
  12. ^ Adapter causes failure of S. Korean rocket Naro CCTV