Engineering:RIM-174 Standard ERAM

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Short description: US surface-to-air missile
RIM-174 ERAM
Standard SM-6
USS John Paul Jones (DDG-53) launches RIM-174 June 2014.JPG
USS John Paul Jones launches a RIM-174 in June 2014
TypeSurface-to-air missile (Primary role)
Anti-ballistic missile (Terminal phase)
Anti-ship missile (Secondary role)
Place of originUnited States
Service history
In service2013–present
Used byUnited States Navy
Royal Australian Navy[1]
Japan Maritime Self Defense Force[2]
Republic of Korea Navy[3]
Production history
ManufacturerRaytheon
Unit cost
  • US$4.87m
    (US$8,766.6m for 1800)[4]
  • US$4,318,632 (FY2021) (average)
Produced2009–present
No. built500[5]
(1,800 planned)[6]
Specifications
Mass3,300 lb (1,500 kg)
Length21.5 ft (6.6 m)
Diameter13.5 in (0.34 m) for Block IA
21 in (0.53 m) for Block IB
Warhead140 lb (64 kg) blast fragmentation[7]
Detonation
mechanism
Radar and contact fuze
EngineTwo Stage: Solid rocket booster, solid rocket booster/sustainer
Wingspan61.8 in (1.57 m)
Operational
range
130 nmi (150 mi; 240 km)[8]
Flight ceiling>110,000 ft (34,000 m)
SpeedMach 3.5 (2,664.2 mph; 4,287.7 km/h; 1.2 km/s)
Guidance
system
Inertial guidance, terminal active and semi-active radar homing
Launch
platform
Surface ship

The RIM-174 Standard Extended Range Active Missile (ERAM), or Standard Missile 6 (SM-6), is a missile in current production for the United States Navy. It was designed for extended-range anti-air warfare (ER-AAW) purposes, providing capability against fixed and rotary-wing aircraft, unmanned aerial vehicles, anti-ship cruise missiles in flight, both over sea and land, and terminal ballistic missile defense. It can also be used as a high-speed anti-ship missile.[9] The missile uses the airframe of the earlier SM-2ER Block IV (RIM-156A) missile,[10] adding the active radar homing seeker from the AIM-120C AMRAAM in place of the semi-active seeker of the previous design. This will improve the capability of the Standard missile against highly agile targets and targets beyond the effective range of the launching vessels' target illumination radars. Initial operating capability was planned for 2013 and was achieved on 27 November 2013.[11] The SM-6 is not meant to replace the SM-2 series of missiles but will serve alongside and provide extended range and increased firepower.[12] It was approved for export in January 2017.[13]

Description

SM-6 Missile Profile.

The Standard ERAM is a two-stage missile with a booster stage and a second stage. It is similar in appearance to the RIM-156A Standard missile. The radar seeker is an enlarged version adapted from the AIM-120C AMRAAM seeker (13.5 in (34 cm) versus 7 in (18 cm)). The missile may be employed in a number of modes: inertially guided to target with terminal acquisition using active radar seeker, semi-active radar homing all the way, or an over-the-horizon shot with Cooperative Engagement Capability. The missile is also capable of terminal ballistic missile defense as a supplement to the Standard Missile 3 (RIM-161). Unlike other missiles of the Standard family, the Standard ERAM can be periodically tested and certified without removal from the vertical launching system.[citation needed]

The SM-6 offers extended range over previous SM-2 series missiles, primarily being able to intercept very high altitude or sea-skimming anti-ship missiles, and is also capable of performing terminal phase ballistic missile defense. The SM-6 can also function as a high-speed anti-ship missile. It can discriminate targets using its dual-mode seeker, with the semi-active seeker relying on a ship-based illuminator to highlight the target and the active seeker having the missile itself send out an electromagnetic signal; the active seeker has the ability to detect a land-based cruise missile amid ground features, even from behind a mountain. The multi-mission SM-6 is engineered with the aerodynamics of an SM-2, the propulsion booster stack of the SM-3, and the front-end configuration of the AMRAAM.[14] Estimates of the SM-6's range vary; its official published range is 130 nmi (150 mi; 240 km),[8] but it could be anywhere from 200 nmi (230 mi; 370 km)[15] to as much as 250 nmi (290 mi; 460 km).[16][17]

The U.S. Navy is adding GPS guidance to the SM-6 Block IA so that it has the capability to strike surface targets if needed. However, given its higher cost than other land attack weapons like the Tomahawk cruise missile, it would not likely be used as a primary option.[18][19] In February 2016, Secretary of Defense Ashton Carter confirmed that the SM-6 would be modified to act as an anti-ship weapon.[20]

On 17 January 2018, the U.S. Navy approved plans to develop the SM-6 Block IB, which will feature a 53.34 cm (21-inch) rocket motor instead of the current 34.29 cm (13.5 inch) motor. The new variant will significantly increase the missile's range and speed, enabling a hypersonic and extended-range anti-surface warfare capability.[21][22]

In November 2020, the U.S. Army selected the SM-6 to fulfill its Mid-Range Capability (MRC), giving it a land-based long-range missile capable of striking ground targets. The Army plans to use the SM-6 alongside a ground-based Tomahawk cruise missile and field them by late 2023.[17]

History

Raytheon entered a contract in 2004 to develop the missile for the United States Navy after the cancellation of the Standard Missile 2 extended range block IVA (RIM-156B). Development started in 2005, followed by testing in 2007. The missile was officially designated RIM-174A in February 2008. Initial low rate production was authorized in 2009.[23] Raytheon received a $93 million contract to begin production of the RIM-174A in September 2009.[24] The first low-rate production missile was delivered in March 2011.[25] SM-6 was approved for full-rate production in May 2013.[26] On 27 November 2013, the Standard ERAM achieved Initial Operating Capability (IOC) when it was fielded on board USS Kidd.[11]

During exercises from 18–20 June 2014, the Arleigh Burke-class destroyer USS John Paul Jones fired four SM-6s. One part of the exercise, designated NIFC-CA AS-02A, resulted in the then-longest surface-to-air engagement in naval history;[27] the exact range of the intercept was not publicly released.[28] On 14 August 2014, an SM-6 was test fired against a subsonic, low-altitude cruise missile target and successfully intercepted it over land. A key element of the test was to assess its ability to discern a slow-moving target among ground clutter.[14] On 24 October 2014, Raytheon announced that two SM-6s intercepted anti-ship and cruise missile targets during "engage on remote" scenarios. A low-altitude, short-range supersonic GQM-163A and a low-altitude, medium-range subsonic BQM-74E were shot down by SM-6s fired from a guided-missile cruiser using targeting information provided by a guided-missile destroyer. Advanced warning and cueing from other ships allows the missile's over-the-horizon capability to be used to a greater extent, allowing a single ship to defend a much larger area.[29] In May 2015, the SM-6 was moved from low-rate to full-rate production, significantly increasing production numbers and further reducing unit cost.[30]

On 28 July 2015, the Navy tested the modified SM-6 Dual I version to successfully intercept a ballistic missile target in the terminal phase, the last few seconds before it would impact; the Dual I upgrade adds a more powerful processor that runs more sophisticated targeting software to hit a warhead descending from the upper atmosphere at extreme speed. This adds to the fleet's missile defense capabilities by allowing it to intercept ballistic missiles that could not be hit by SM-3 missiles, which target missiles in the midcourse phase. The Navy had used the SM-2 Block IV as a terminal ballistic interceptor, but the SM-6 combines missile defense with traditional cruise missile and aircraft interdiction in the same package. The SM-6 Dual I configuration is planned to enter service in 2016.[6][31][32]

In January 2016, the SM-6 demonstrated both maximum down range and maximum cross-range intercepts in over-the-horizon, engage-on-remote missions supported by CEC, breaking the previous maximum engagement record it set in June 2014. Five targets were shot down in the test, proving the missile's capability to conduct multiple target scenarios.[5][33] The SM-6 also sunk the decommissioned USS Reuben James in an 18 January 2016 demonstration, displaying its anti-ship capabilities.[34] On 30 September 2016, Raytheon announced that the SM-6 had again achieved the longest surface-to-air intercept in naval history, breaking its previous long-range intercept record made in January 2016.[35] On 14 December 2016, the Missile Defense Agency successfully launched two SM-6 Dual I missiles at a "complex, medium-range ballistic missile target", proving that its explosive—rather than hit-to-kill—warhead was capable of defeating medium-range ballistic missile threats;[36] this ability may enable it to counter Chinese DF-21D and DF-26B anti-ship ballistic missile threats.[37]

In August 2017, the Missile Defense Agency conducted another successful intercept test of a medium-range ballistic missile (MRBM).[38] Two SM-6 Dual I missiles were launched from USS John Paul Jones to intercept a target MRBM launched from the Pacific Missile Range Facility during the terminal phase of its flight.[39] The test marked the third successful intercept of a ballistic missile by the SM-6.[38]

In April 2021, USS John Finn used an SM-6 to strike a simulated naval target 250 miles away.[40] In the same month, a Super Hornet was photographed carrying what appeared to be an SM-6 while in flight.[41]

On 27 May 2021, the Russian Navy ship Kareliya (SSV-535), a Vishnya-class auxiliary general intelligence (AGI) ship operating near Pacific Missile Range Facility, caused the delay of the Flight Test Aegis Weapon System.[42] On 29 May 2021, Flight Test Aegis Weapon System 31 Event 1, a salvo of two SM-6 Dual II missiles failed to intercept two medium-range ballistic missiles; only one MRBM was intercepted.[43]

Operators

Current

United States United States
  • United States Navy
Japan Japan
  • Japan Maritime Self-Defense Force

Future

Australia Australia
  • Royal Australian Navy[44]
South Korea South Korea
  • Republic of Korea Navy[45]

See also

References

  1. ↑ "Australian Defence White Paper 2009". http://www.defence.gov.au/whitepaper/docs/defence_white_paper_2009.pdf. 
  2. ↑ "Japan SM-6 | Japan Space Policy". http://japanspacepolicy.com/tag/japan-sm-6/. 
  3. ↑ South Korea to purchase Standard Missile-6 interceptors. Navy Recognition. 26 April 2022.
  4. ↑ "Comprehensive Selected Acquisition Reports (SARs) For the December 31, 2017 Reporting Requirement as Updated by the President's FY 2019 Budget". US Dept of Defense. 31 December 2017. https://www.acq.osd.mil/ara/am/sar/SST-2017-12.pdf. 
  5. ↑ 5.0 5.1 [1] - raytheonmissilesanddefense.com, 4 May 2020
  6. ↑ 6.0 6.1 "Successful SM-6 Ballistic Missile Defense Test Set To Expand Capability of U.S. Guided Missile Fleet", U.S. Naval Institute, 4 August 2015
  7. ↑ Fixing the US Navy's Anti-Surface Warfare Shortfall - Thediplomat.com, 10 March 2016
  8. ↑ 8.0 8.1 The Navy's Air Defense Missile Will Become a Supersonic Ship Killer - Popularmechanics.com, 10 February 2016
  9. ↑ Majumdar, Dave (8 March 2016). "How to Sink Warships: U.S. Navy Reveals Anti-Ship SM-6 Missile". http://nationalinterest.org/blog/the-buzz/how-sink-battleships-us-navys-anti-ship-sm-6-missile-15436. 
  10. ↑ "Raytheon Missile Systems Standard Missile 6" , Accessed 10 February 2011.
  11. ↑ 11.0 11.1 "Archived copy". http://www.navsea.navy.mil/NewsView.aspx?nw=NewsWires&id=337. 
  12. ↑ Sydney J. Freedberg, Jr., "Non-Standard: Navy SM-6 Kills Cruise Missiles Deep Inland" – Breakingdefense.com, 19 August 2014
  13. ↑ SM-6 Cleared for International Sale; Australia, Japan, Korea Could Be Early Customers - News.USNI.org, 10 January 2017
  14. ↑ 14.0 14.1 Kris Osborn, "Navy Missile Hits Subsonic Target Over Land" – Defensetech.org, 20 August 2014
  15. ↑ SECDEF Carter Confirms Navy Developing Supersonic Anti-Ship Missile for Cruisers, Destroyers - News.USNI.org, 4 February 2016
  16. ↑ Sinking Enemy Warships: the U.S. Navy’s Fiery New Weapon - Nationalinterest.org, 5 February 2016
  17. ↑ 17.0 17.1 Army Picks Tomahawk & SM-6 For Mid-Range Missiles. Breaking Defense. 6 November 2020.
  18. ↑ BURGESS, RICHARD. "SM-6 Block 1A Testing is Expected This Year". http://seapowermagazine.org/stories/20170110-sm6-plans.html. 
  19. ↑ "Pit LRASM Against Tomahawk For Anti-Ship Missile: VADM Aucoin" – Breakingdefense.com, 5 August 2015
  20. ↑ Defense secretary says budget plan focuses on high-end ships - Militarytimes.com, 3 February 2016
  21. ↑ Katz, Justin. "Navy seeks $38.2 million reprogramming for hypersonic, extended range upgrade to SM-6". Inside Defense. https://insidedefense.com/insider/navy-seeks-382-million-reprogramming-hypersonic-extended-range-upgrade-sm-6. 
  22. ↑ Sherman, Jason. "Navy looking to increase range, speed of SM-6 with larger rocket motor". https://insidedefense.com/inside-pentagon/navy-looking-increase-range-speed-sm-6-larger-rocket-motor. 
  23. ↑ Raytheon RIM-174 ERAM (SM-6), designation-systems.net, 24 November 2009.
  24. ↑ "U.S. Navy Awards Raytheon $93 Million Contract for Standard Missile-6" Raytheon press release, 9 September 2009. Accessed 8 November 2009.
  25. ↑ "Raytheon Delivers First Standard Missile-6 to U.S. Navy" Raytheon press release, 25 April 2011. Accessed 27 April 2011.
  26. ↑ "Defense Acquisition Board approves Standard Missile-6 full-rate production". Raytheon Company. 22 May 2013. http://raytheon.mediaroom.com/index.php?s=43&item=2332. 
  27. ↑ "US Navy destroyer conducts longest ever surface-air engagement with new SM-6 missiles" – Defense-Update.com, 28 June 2014
  28. ↑ "SM-6 Goes Long" – Strategypage.com, 10 July 2014
  29. ↑ "Raytheon SM-6s Intercept Targets in 'Engage on Remote' Tests" – Navyrecognition.com, 24 October 2014
  30. ↑ "Raytheon's SM-6 Surface-to-Air Missile moves from low-rate to full-rate production" – Navyrecognition.com, 6 May 2015
  31. ↑ Audrey McAvoy, "U.S. military tests ballistic missile interceptor off Hawaii", Military Times, Associated Press, 3 August 2015
  32. ↑ Sydney J. Freeberg, Jr., "SM-6 Can Now Kill Both Cruise AND Ballistic Missiles" – Breakingdefense.com, 4 August 2015
  33. ↑ Anti-Aircraft Missile Sinks Ship: Navy SM-6 - Breakingdefense.com, 7 March 2016
  34. ↑ Navy Sinks Former Frigate USS Reuben James in Test of New Supersonic Anti-Surface Missile - News.USNI.org, 7 March 2016
  35. ↑ U.S. Navy sets intercept record with SM-6 missile - UPI.com, 30 September 2016
  36. ↑ MDA Conducts Successful BMD Intercept with Ship-launched SM-6 - News.USNI.org, 15 December 2016
  37. ↑ How the U.S. Navy is Trying to Make China's 'Carrier-Killer' Missiles Obsolete - Nationalinterest.org, 16 December 2016
  38. ↑ 38.0 38.1 US Tests Enhanced SM-6 After NK Launches Missile Over Japan - Defensetech.org, 31 August 2017
  39. ↑ "VIDEO: Navy, Missile Defense Agency Succeed During SM-6 Ballistic Missile Defense Test - USNI News". 30 August 2017. https://news.usni.org/2017/08/30/video-navy-missile-defense-agency-succeed-sm-6-ballistic-missile-defense-test. 
  40. ↑ LaGrone, Sam (26 April 2021). "Unmanned Systems, Passive Sensors Help USS John Finn Bullseye Target With SM-6". U.S. Naval Institute. https://news.usni.org/2021/04/26/unmanned-systems-passive-sensors-help-uss-john-finn-bullseye-target-with-sm-6. 
  41. ↑ "The Weekly Debrief: Air-launched, SM-6-like Missile Exposed In New Test Photo". https://aviationweek.com/defense-space/missile-defense-weapons/weekly-debrief-air-launched-sm-6-missile-exposed-new-test. 
  42. ↑ William Cole (May 27, 2021) Russian spy ship off Kauai results in postponed missile test
  43. ↑ Missile Defense Agency (29 May 2021) MDA Test Does Not Intercept Target
  44. ↑ "Australia – Defense Services Related to Future Standard Missile Production | Defense Security Cooperation Agency". https://www.dsca.mil/press-media/major-arms-sales/australia-defense-services-related-future-standard-missile-production. 
  45. ↑ South Korea to purchase Standard Missile-6 interceptors. Navy Recognition. 26 April 2022.

External links




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