Shavit 2 Explained

Shavit 2
Function:Expendable launch vehicle
Manufacturer:Israel Aerospace Industries
Country-Origin:Israel
Height:26.4 m
Diameter:1.35 m
Mass:30,500–70,000 kg
Stages:4
Capacities:
Kilos:350–800 kg
Status:Active
Sites:Palmachim Airbase
Launches:12
Success:10
Fail:2
First:19 September 1988
Last:28 March 2023
Stagedata:
Type:Stage
Diff:LeoLink LK-1
Stageno:First
LK-1
Number:1
Engines:LK-1
Si:268 seconds
Burntime:55 seconds
Type:Stage
Diff:LeoLink LK-2
Stageno:First
Castor 120
Number:1
Alt-Thrust:370,990 lbf
Si:280 seconds
Burntime:82 seconds
Fuel:HTPB polymer, Class 1.3 C
Type:stage
Stageno:Second
LK-1
Number:1
Engines:1 LK-1
Si:268 seconds
Burntime:55 seconds
Type:stage
Stageno:Third
RSA-3-3
Number:1
Engines:1 RSA-3-3
Thrust:58.6 kN
Si:298 seconds
Burntime:94 seconds
Type:stage
Stageno:Fourth
LK-4
Engines:1 LK-4
Thrust:0.402 kN
Si:200 seconds
Burntime:800 seconds
Fuel:Hydrazine[1]
Cpl:$18M

Shavit 2 (Hebrew: "comet" – שביט) is a small lift launch vehicle produced by Israel from 1982 onwards, to launch satellites into low Earth orbit. It was first launched on 19 September 1988 (carrying an Ofek-1 satellite payload), making Israel the eighth nation to have an orbital launch capability after the USSR, United States, France, Japan, People's Republic of China, United Kingdom, and India.

The Shavit 2 project is believed to have been an offshoot development, resulting from Israel's Jericho nuclear armed intercontinental ballistic missile (ICBM) program.[2] [3]

Shavit rockets are launched from Palmachim Airbase by the Israel Space Agency into highly retrograde orbits over the Mediterranean Sea to prevent debris coming down in populated areas and also to avoid flying over nations hostile to Israel to the east; this results in a lower payload-to-orbit than east-directed launches would allow.[4] [5] The launcher consists of three stages powered by solid-fuel rocket motors, with an optional liquid-fuel fourth stage, and is manufactured by Israel Aircraft Industries (IAI).

The Republic of South Africa produced and tested a licensed version in cooperation with Israel called the RSA-3 in an ultimately unsuccessful bid to produce a domestic satellite launch vehicle and ballistic missile; the South African program was closed in 1994.[6]

An earlier unrelated project called Shavit 2 was the first Israeli sounding rocket, launched on 5 July 1961 for meteorological research.[7] Shavit Three, with an altitude reported as, was launched on 11 August 1961.

Development

The development of Shavit 2 began in 1982.[8] Shavit was a three-stage, solid-propellant launcher designed to carry payloads up to 250 kg into low Earth orbit. It was speculated for some time and later confirmed that the first two stages of the Shavit were that of the Jericho II missile.[9]

Shavit was first launched in 1988 and because of its geographic location and hostile relations with surrounding countries, Israel had to launch it to the west, over the Mediterranean Sea, in order to avoid flying over those hostile territories to its east. The practice has continued ever since.[10]

Vehicle description

The first of the Shavit vehicles were a small, 3-stage, solid-propellant booster based on the 2-stage Jericho-II ballistic missile and developed under the general management of Israel Aircraft Industries and in particular its MBT System and Space Technology subsidiary. Israel Military Industries Systems produces the first-stage and second-stage motors, while Rafael is responsible for the third-stage motor.[11]

A planned commercial Shavit upgrade was called Next. This name is no longer used, and this proposed upgrade configuration is now called Shavit-2. Both first and second stages of the Shavit-2 use the stretched motor design of the Shavit-1 first stage.

Launch history

The Shavit has been launched 12 times, placing the payload into orbit 10 times.[12] On the 4th and 6th flights, the vehicle failed before reaching space. Most non-Israeli satellites are launched eastward to gain a boost from the Earth's rotational speed. However, the Shavit is launched westward (retrograde orbit) over the Mediterranean Sea to avoid flying and dropping spent rocket stages over populated areas in Israel and neighboring Arab countries. The Shavit is also said to be made available for commercial launches in the near future.

VariantDate of launch (UTC)Launch locationPayloadMission status
Shavitalign=center 19 September 1988
09:31
align=center Palmachim Airbase Ofek-1
Shavitalign=center 3 April 1990
12:02
align=center Palmachim Airbase Ofek-2
Shavit-1align=center 5 April 1995
11:16
align=center Palmachim Airbase Ofek-3
Shavit-1align=center 22 January 1998
12:56
align=center Palmachim Airbase Ofek-4
Shavit-1align=center 28 May 2002
15:25
align=center Palmachim Airbase Ofek-5
Shavit-1align=center 6 September 2004
10:53
align=center Palmachim Airbase Ofek-6
Shavit-2align=center 10 June 2007
23:40
align=center Palmachim Airbase Ofek-7
Shavit-2align=center 22 June 2010
19:00
align=center Palmachim Airbase Ofek-9[13]
Shavit-2align=center 9 April 2014
19:06
align=center Palmachim Airbase Ofek-10
Shavit-2align=center 13 September 2016
14:38
align=center Palmachim Airbase Ofek-11[14]
Shavit-2align=center 6 July 2020
01:00
align=center Palmachim Airbase Ofek-16[15]
Shavit-2align=center 28 March 2023
23:10
align=center Palmachim Airbase Ofeq-13[16]

The September 2004 failure of the Shavit resulted in the destruction of the US$100 million Ofeq 6 spy satellite. Israel used Indian Polar Satellite Launch Vehicle in the subsequent launch for the TecSAR SAR satellite,[17] while upgrading the Shavit launcher. On the upgraded Shavit 2, the follow-up Ofeq 7 was successfully launched on a Shavit rocket in 2007.

South African RSA series

See main article: Jericho (missile).

The Jericho II missile-Shavit SLV was also license produced in the Republic of South Africa as the RSA series of space launch vehicles and ballistic missiles. The RSA-3 was produced by the Houwteq (a discontinued division of Denel) company at Grabouw, 30 km east of Cape Town. Test launches were made from Overberg Test Range near Bredasdorp, 200 km east of Cape Town. Rooiels was where the engine-test facilities were located. Development continued even after South African renunciation[18] of its nuclear weapons for use as a commercial satellite launcher. Development actually reached its height in 1992, a year after nuclear renunciation, with 50–70 companies involved, employing 1300–1500 people from the public and private sector.[19] [20] A much heavier ICBM or space launch vehicle, the RSA-4, with a first stage in the Peacekeeper ICBM class but with Jericho-2/RSA-3 upper-stage components was in development.[6] [21] [22]

VariantDate of launchLaunch locationPayloadMission status
RSA-3align=center 1 June 1989align=center Denel Overberg Test Range RSA-3-d 1Apogee: 100 km (60 mi)
RSA-3align=center 6 July 1989align=center Denel Overberg Test Range RSA-3 2Apogee: 300 km (180 mi)
RSA-3align=center 19 November 1990align=center Denel Overberg Test Range RSA-3 3Apogee: 300 km (180 mi)
Planned launches
In June 1994 the RSA-3 / RSA-4 South African satellite launcher program was cancelled.[23]

Proposed LK civilian launch variants

In 1998, Israel Space Agency partnered with U.S. Coleman Research Corporation (now a division of L-3 Communications) to develop the LK family of small launch vehicles.[24] In 2001, a new French joint-venture, LeoLink, between Astrium and Israel Aircraft Industries, was created to market the LK variant.[25] It is believed that in 2002 development of the LK variant was discontinued.[26]

The LK-1 was closely based on the Shavit-2, but with motors and other components built in the United States to satisfy U.S. government requirements.[24] The LK-2 was a larger vehicle using a Thiokol Castor 120 motor as its first stage. The third stage was either a standard AUS-51 motor built under license by Atlantic Research Corp., or a Thiokol Star 48 motor. All launch vehicles would have had a small monopropellant hydrazine fourth stage.[27]

A Shavit LK air-launched satellite launcher was proposed by ISA and Israel Aircraft Industries (IAI). The booster would have been a standard Shavit-1 or Shavit-2 without a first stage that would be dropped from a Hercules C-130. An alternative proposal consisted of a full launch stack carried atop Boeing 747 aircraft, similar to how the Space Shuttle was carried, through the Straits of Tiran and past the Arabian Peninsula into open sea; this called for a zoom-climb launch over the Indian Ocean, permitting the eastward boost from the rotation of the Earth rather than launching into a westward retrograde orbit over the Mediterranean, nearly doubling the maximum payload weight.[27] [28]

Comparable solid fuel rockets

See main article: Comparison of solid-fuelled orbital launch systems.

See also

Notes and References

  1. Web site: Astronautix leolinklk-1 Review. https://web.archive.org/web/20161228023627/http://astronautix.com/l/leolinklk-1.html. dead. 28 December 2016. 14 June 2021.
  2. .
  3. Book: Report of the Secretary-General . 1991 . South Africa's Nuclear-Tipped Ballistic Missile Capability . Disarmament Study Series . . New York . 10.18356/8afa8632-en . 92-1-142178-0 . Department for Disarmament Affairs.
  4. Web site: Shavit. https://archive.today/20160125045209/http://www.spacelaunchreport.com/shavit.html. usurped. 25 January 2016. Space Launch Report. 20 April 2014. 7 July 2015.
  5. News: New Israeli spy satellite blasts off into the night. Stephen Clark. Spaceflight Now. 22 June 2010. 7 July 2015.
  6. Web site: RSA. 6 February 2015. dead. https://web.archive.org/web/20160303194929/http://www.astronautix.com/lvs/rsa.htm. 3 March 2016.
  7. Google Books https://books.google.com/books?id=gK24aORawV4C&pg=PA153 https://books.google.com/books?id=r1FDTCVE4asC&pg=PA41
  8. Israel's Quest for Satellite Intelligence. https://web.archive.org/web/20070613113528/https://www.cia.gov/library/center-for-the-study-of-intelligence/csi-publications/csi-studies/studies/winter_spring01/article04.pdf. dead. 13 June 2007. EL. Zorn. CIA. Studies in Intelligence. Winter–Spring 2001. 10. 33–38 . 2009-09-11.
  9. .
  10. .
  11. .
  12. Web site: Ed Kyle. Space Launch Report: Shavit. Space Launch Report. 10 January 2020. usurped. https://web.archive.org/web/20191221151143/http://www.spacelaunchreport.com/shavit.html. 21 December 2019.
  13. News: Israel launches spy satellite. Greenberg. Hanan. Ynetnews . 22 June 2010. Ynet. 22 June 2010.
  14. Web site: Israel Launches Advanced Optical Reconnaissance Satellite . Spaceflight 101. 13 September 2016. 13 September 2016.
  15. Web site: Israel successfully places surveillance satellite into orbit. Spaceflight Now. 6 July 2020. 6 July 2020.
  16. Web site: Israel Launches Latest Generation Ofek Spy Satellite . Reuters . 29 March 2023. 29 March 2023.
  17. News: Covert satellite for Israel launched by Indian rocket. Stephen Clark . Spaceflight Now. 21 January 2008. 7 July 2015.
  18. Stumpf . Waldo . December 1995 – January 1996 . South Africa's Nuclear Weapons Programme: From Deterrence to Dismantlement . . . 25 . 10 . 3–8 . 23625371 . 12 July 2013 . 2 August 2017 . https://web.archive.org/web/20170802205852/https://www.armscontrol.org/system/files/ACT_South%20Africa_9601.pdf . dead .
  19. Web site: The South African Rocket and Space Programme. Iain McFadyen. 6 February 2015.
  20. Web site: Satellites for South Africa. Guy Martin. 6 February 2015.
  21. Web site: RSA-3. 6 February 2015. dead . https://web.archive.org/web/20140805141440/http://astronautix.com/lvs/rsa3.htm. 5 August 2014.
  22. Web site: RSA-4. 6 February 2015. dead. https://web.archive.org/web/20140805141424/http://astronautix.com/lvs/rsa4.htm. 5 August 2014.
  23. Web site: South Africa. 6 February 2015. dead. https://web.archive.org/web/20150425162855/http://www.astronautix.com/country/soufrica.htm#chrono. 25 April 2015.
  24. Israel Missile Update. The Risk Report. . 6. 6. November–December 2000. 2010-06-23. dead. https://web.archive.org/web/20100328164425/http://www.wisconsinproject.org/countries/israel/missile2000.htm . 2010-03-28.
  25. Web site: LeoLink Incorporated to Market Shavit Derivatives. Space & tech Digest. 2010-06-23. dead . https://web.archive.org/web/20110622051708/http://www.spaceandtech.com/digest/sd2001-17/sd2001-17-004.shtml. 2011-06-22.
  26. Web site: Shavit. Mark. Wade. Astronautix. 2010-06-23. dead . https://web.archive.org/web/20100627175635/http://www.astronautix.com/lvs/shavit.htm. 2010-06-27.
  27. .
  28. Web site: Israel Studies Airborne Launch Scheme for Shavit Rocket. SpaceNews.com. 6 February 2015.