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The AMDR (Air and Missile Defense Radar, now officially named AN/SPY-6)[1] is an active electronically scanned array[2] air and missile defense 3D radar under development for the United States Navy.[3] It will provide integrated air and missile defense, and even periscope detection, for the Flight III Arleigh Burke-class destroyers.[4]



On October 10, 2013, "Raytheon Company (RTN) [was] awarded a $385,742,176 cost-plus-incentive-fee contract for the Engineering and Manufacturing Development (EMD) phase design, development, integration, test and delivery of Air and Missile Defense S-band Radar (AMDR-S) and Radar Suite Controller (RSC)." [5] In September 2010, the Navy awarded technology development contracts to Northrop Grumman, Lockheed Martin, and Raytheon to develop the S-band radar and radar suite controller (RSC). X-band radar development reportedly will come under separate contracts. The Navy hopes to place AMDR on Flight III Arleigh Burke-class destroyers, possibly beginning in 2016. Those ships currently mount the Aegis Combat System, produced by Lockheed Martin.[6]

In 2013, the Navy cut almost $10 billion from the cost of the program by adopting a smaller less capable system that will be challenged by "future threats".[7] As of 2013 the program is expected to deliver 22 radars at a total cost of $6,598m; they will cost $300m/unit in serial production.[8] Testing is planned for 2021 and Initial operating capability is planned for March 2023.[8] The Navy then was forced to halt the contract in response to a challenge by Lockheed.[9] Lockheed officially withdrew their protest on January 10, 2014[10], allowing the Navy to lift the stop work order.[11]


The AMDR system consists of two primary radars and a radar suite controller (RSC) to coordinate the sensors. An S-band radar is to provide volume search, tracking, ballistic missile defense discrimination and missile communications while the X-band radar is to provide horizon search, precision tracking, missile communication and terminal illumination of targets.[6] The S-band and X-band sensors will also share functionality including radar navigation, periscope detection, as well as missile guidance and communication. AMDR is intended as a scalable system; the Burke deckhouse can only accommodate a 4.3 m (14 ft) version but the USN claim they need a radar of 6.1 m (20 ft) or more to meet future ballistic missile threats.[8] This would require a new ship design; Ingalls have proposed the San Antonio-class amphibious transport dock as the basis for a ballistic missile defense cruiser with 6.1 m (20 ft) AMDR. To cut costs the first twelve AMDR sets will have an X-band component based on the existing SPQ-9B rotating radar, to be replaced by a new X-band radar in set 13 that will be more capable against future threats.[8] The transmit-receive modules will use new gallium nitride semiconductor technology.[8] This will allow for higher power density than the previous gallium arsenide radar modules.[12] The new radar will require twice the electrical power as the previous generation while generating over 35 times as much radar power.[13]

Although it was not an initial requirement, the AMDR may be capable of performing electronic attacks using its AESA antenna. Airborne AESA radar systems, like the APG-77 used on the F-22 Raptor, and the APG-81 and APG-79 used on the F-35 Lightning II, and F/A-18 Super Hornet/EA-18G Growler respectively, and have demonstrated their capability to conduct electronic attack. The contenders for the Navy's Next Generation Jammer all used Gallium Nitride-based (GaN) transmit-receiver modules for their EW systems, which enables the possibility that the high-power GaN-based AESA radar used on Flight III ships can perform the mission. Precise beam steering could attack air and surface threats with tightly directed beams of high-powered radio waves to electronically blind aircraft, ships, and missiles.[14]

The radar is 30 times more sensitive and can simultaneously handle over 30 times the targets of the existing AN/SPY-1D(V) in order to counter large and complex raids.[15]


  • AN/SPY-6(V)1: AMDR with 37 RMAs for Flight III Arleigh Burke-class DDG.
  • AN/SPY-6(V)2: Otherwise known as the Enterprise Air Surveillance Radar[16]. Rotated and scaled-down version with 9 RMAs for Flight II San Antonio-class LPD.
  • AN/SPY-6(V)3: Fixed version EASR for Ford-class aircraft carrier and FFG(X).
  • AN/SPY-6(V)4: AMDR with 24 RMAs to be retrofitted to Flight IIA Arleigh Burke-class DDG.

See alsoEdit


  1. ^
  2. ^
  3. ^ "AMDR Competition: The USA's Next Dual-Band Radar". Archived from the original on 13 October 2010. Retrieved 2010-10-01.
  4. ^ "Exhibit R-2A, RDT&E Project Justification: PB 2011 Navy" (PDF). 2010-03-15. Retrieved 2010-10-01.
  5. ^ "Archived copy". Archived from the original on 2013-10-18. Retrieved 2013-10-10.CS1 maint: Archived copy as title (link)
  6. ^ a b "New Radar Development Continues for U.S. Navy". Defense News. Archived from the original on 2012-09-20. Retrieved 2011-04-01.
  7. ^ "NavWeek: Radar Shove."
  8. ^ a b c d e "GAO-13-294SP DEFENSE ACQUISITIONS Assessments of Selected Weapon Programs" (PDF). US Government Accountability Office. March 2013. pp. 117–8. Retrieved 26 May 2013.
  9. ^ Shalal-Esa, Andrea (23 October 2013). "U.S. Navy orders Raytheon to halt radar work after protest". Reuters. Retrieved 23 October 2013.
  10. ^ McCarthy, Mike (10 January 2014). "Lockheed Martin Drops Protest On Award Of Navy's New Shipboard Radar". Defense Daily. Defense Daily Network. Retrieved 25 November 2018.
  11. ^ LaGrone, Sam (13 January 2014). "Lockheed Martin Drops Protest over Next Generation Destroyer Radar". US Naval Institute News. Retrieved 25 November 2018.
  12. ^ "The Heart of the Navy’s Next Destroyer."
  13. ^ Filipoff, Dmitry (4 May 2016). "CIMSEC Interviews Captain Mark Vandroff, Program Manager DDG-51, Part 1". CIMSEC. Retrieved 5 May 2016.
  14. ^ Navy’s Next Generation Radar Could Have Future Electronic Attack Abilities -, 17 January 2014
  15. ^
  16. ^

External linksEdit