ALR-67 Radar Warning Receiver
Radar Warning Receiveris designed to warn an aircraft's crew of potentially hostile radar activity. It is an airborne threat warning and countermeasures control system built to be successor to the United States Navy's AN/ALR-45. Northrop Grumman Corporation's Electronic Systems sector (Rolling Meadows, Illinois) was the main contractor for the AN/ALR-67(V) and (V)2. Raytheon Electronic Warfare Systems (Goleta, California) was the main contractor for the AN/ALR-67(V)3. Northrop GrummanAN/ALR-67(V) and AN/ALR-67(V)2
The AN/ALR-67 countermeasures warning and control system is the standard threat warning system for tactical aircraft and was specifically designed for the A-6E/SWIP, AV-8B, F-14B, F-14D and F/A-18. The system detects, identifies and displays radars and radar-guided weapon systems in the C to J frequency range (about 0.5 to 20 GHz). The system also coordinates its operation with onboard fire-control radars, datalinks,
jammers, missiledetection systems and anti-radiation missiles.
The AN/ALR-67(V)2 comprises the following units:
* four small spiral high-band antennas to provide 360° azimuth RF coverage
* four wideband, high-band quadrant receivers
* a low-band array plus receiver to provide 360° azimuth low-band coverage
* a narrowband
superheterodyne receiverfor signal analysis functions
* twin CPU
* an azimuth display unit (ADU)
* control unit.
The AN/ALR-67(V)2 in turn has been given a significant enhancement in capability, through Engineering Change Procedure ECP-510 to the AN/ALR-67E(V)2 standard. The AN/ALR-67E(V)2 provides additional enhancements including a 10-fold improvement in detection ranges when in the presence of a wingman's radar signals; it also incorporates
Inertial guidance system(INS) stabilisation for accurate display in high "g" manoeuvres and during high roll maneuvers.
Over 1,600 AN/ALR-67(V) and AN/ALR-67(V)2 systems have been sold. The AN/ALR-67(V) has been supplied to the
U.S. Navyand U.S. Marine Corpsand the air forces of Australia, Canada, Finland, Kuwait, Malaysia, Spainand Switzerland.
The AN/ALR-67(V)3 is commonlyFact|date=November 2007 referred to as the Advanced Special Receiver (ASR) set. The receiver electronics unit has been upgraded to a fully channelized digital architecture with dual 32-bit processors, yet with an overall reduction in system size and weight. The Azimuth Display Indicator (ADI) is a 3 in (76.2 mm) diameter CRT or LCD cockpit display, carried over from the AN/ALR-67(V)2, used to show intercepted threats. The AN/ALR-67(V)3 also forms part of the
electronic countermeasuresprogramme, including an interface to the ALE-50 Towed Decoy System.
In August 1999,
Raytheonwas awarded an initial contract for full-rate production of the AN/ALR-67(V)3 for the U.S. Navy F/A-18E/F Super Hornet, totalling 34 complete installations, together with 40 spare quadrant receivers and five countermeasures receiversFact|date=November 2007. These were delivered during 2001/02. Further production contracts followed, with the latest in April 2005, where Raytheon received its seventh production contract for 42 systems totalling US$44 million. This contract brought total orders to 284 receivers plus spares.
It has been reported (
September 13, 2006) [http://www.theage.com.au/news/National/400m-Hornet-radar-contract-dumped/2006/09/13/1157826975748.html] that the Australian Defence minister has accepted a recommendation to stop development of the ALR-2002for the F/A-18, the RAAF will most likely install the ALR-67V(3) instead.
August 3 2007, [http://www.deagel.com/news/FMS-Canada-Seeks-ANALR-67V3-Radar-Warning-Receivers_n000002522.aspx Deagel.com] reported that the Defense Security Cooperation Agencynotified Congress of a possible Foreign Military Sale to Canada of AN/ALR-67(V)3 radar warning receivers as well as associated equipment and services. The total value, if all options are exercised, could be as high as $209 million. This notice of a potential sale is required by law; it does not mean that the sale has been concluded.
A variant of this system, designated AN/ALR-67(V)4, was included in a proposed upgrade for the F-14A but was never implemented due to the retirement of those aircraft in the United States.
* [http://www.fas.org/man/dod-101/sys/ac/equip/an-alr-67.htm AN/ALR-67 at FAS]
* [http://www.qsl.net/n9zia/ew-programs.html EW Programs]
* [http://www.raytheon.com/products/alr67/ Raytheon product information on the ALR-67(V)3]
Wikimedia Foundation. 2010.
Look at other dictionaries:
Radar warning receiver — Typically fitted to military aircraft, radar warning receivers (RWR) detect the radio emissions of radar systems, whether ground based or on board other aircraft. The system is often capable of classifying the source of the radar by type (Pulsed… … Wikipedia
ALR-2002 — The AN/ALR 2002 Radar Warning Receiver is designed to warn an aircraft s crew of potentially hostile radar activity. British Aerospace Australia (BAE SYSTEMS) was the sole contractor for the AN/ALR 2002 Australian indigenous System BAE SYSTEMS… … Wikipedia
ALR-94 — Lockheed Martin F 22 Raptor … Deutsch Wikipedia
AN/ALR-94 — Lockheed Martin F 22 Raptor … Deutsch Wikipedia
F-4 Phantom II non-U.S. operators — are the non U.S. nations with air forces that operate and use the McDonnell Douglas F 4 Phantom II. The Phantom II entered service with the U.S. military in 1960 and served until 1996. During this time it was the primary interceptor, air… … Wikipedia
McDonnell Douglas F-4 Phantom II non-U.S. operators — Main article: F 4 Phantom II Phantoms in non U.S. service … Wikipedia
F-15 Eagle — Infobox Aircraft name=F 15 Eagle type=Air superiority fighter manufacturer=McDonnell Douglas / Boeing IDS caption=USAF F 15 over Washington, D.C designer= first flight=July 27, 1972 introduction=January 9, 1976 retired= number built=… … Wikipedia
McDonnell Douglas F-15 Eagle — F 15 redirects here. For other uses, see F15 (disambiguation). F 15 Eagle USAF F 15C over Washington … Wikipedia
Mitsubishi F-15J — F 15J Eagle A Japan Air Self Defense Force F 15DJ in flight. Role Fighter air … Wikipedia
VX-4 — The VX 4 Evaluators was a U.S. Navy Air Test and Evaluation Squadron based at NAS Point Mugu. Their tail code was XF, and they flew the F 14 Tomcat and F/A 18 Hornet until their disestablishment.HistoryVX 4 (Air Test and Evaluation Squadron 4)… … Wikipedia