AN/APG-83

{{Short description|Type of aircraft radar}}

{{Use dmy dates|date=February 2021}}

{{Infobox radar

|name = AN/APG-83

|image = 52nd FW jets first active-duty F-16s to receive AESA radars (7406261).jpg

|country = USA

|introdate =

|number =

|type = AESA airborne radar

|frequency =Starting Envelope frequency around 20 GHz

|PRF =

|beamwidth =

|pulsewidth=

|RPM =

|range =370 km, 230 miles

|altitude =

|diameter =

|azimuth =±10 degrees / ± 30 degrees / ± 60 degrees

|elevation =

|precision =

|power =

|other names=

}}

The AN/APG-83 Scalable Agile Beam Radar (SABR) is a full-performance active electronically scanned array (AESA) fire control radar for the General Dynamics F-16 Fighting Falcon and other aircraft developed by Northrop Grumman.{{cite web|url=https://www.prnewswire.com/news-releases/northrop-grummans-scalable-agile-beam-radar-sabr-to-help-extend-viability-of-us-air-force-f-16s-beyond-2025-224264671.html|title=Northrop Grumman's Scalable Agile Beam Radar (SABR) to Help Extend Viability of U.S. Air Force F-16s Beyond 2025|first=Northrop Grumman|last=Corporation|agency=PR Newswire|accessdate=7 February 2019}} In a 2013 competition, Lockheed Martin selected SABR as the AESA radar for the F-16 modernization and update programs of the United States Air Force and Republic of China Air Force.[http://news.northropgrumman.com/news/releases/lockheed-martin-selects-northrop-grumman-s-scalable-agile-beam-radar-sabr-for-the-f-16-aesa-radar-upgrade-program "Lockheed Martin Selects Northrop Grumman's Scalable Agile Beam Radar (SABR) for the F-16 AESA Radar Upgrade Program."]. 31 July 2013. Retrieved 20 February 2017.

The capabilities of this advanced AESA are derived from the F-22's AN/APG-77 and the F-35's AN/APG-81. It is designed to fit F-16 aircraft with no structural, power or cooling modifications.{{cite web|url=http://www.northropgrumman.com/Capabilities/sabr/Pages/default.aspx|title=APG-83 Scalable Agile Beam Radar (SABR) AESA for the F-16 and Legacy Aircraft|website=Northrop Grumman|accessdate=7 February 2019|archive-date=17 March 2015|archive-url=https://web.archive.org/web/20150317062900/http://www.northropgrumman.com/Capabilities/SABR/Pages/default.aspx|url-status=dead}} The SABR is scalable to fit other aircraft platforms and mission areas.{{citation needed|date=April 2017}}

In 2010, a SABR was installed on a USAF F-16 at Edwards AFB and flew 17 consecutive demonstration sorties without cooling or stability issues.[http://defense-update.com/20120210_northrop-grumman-scalable-agile-beam-radar-sabr.html "Northrop Grumman Scalable Agile Beam Radar (SABR)"].

In addition to equipping F-16V for Taiwan and other US allies, US Air Force also selected APG-83 SABR to upgrade 72 of its Air National Guard F-16s.{{cite web|url=https://news.northropgrumman.com/news/releases/united-states-air-force-selects-the-northrop-grumman-apg-83-sabr-for-f-16-aesa-radar-upgrade|title=United States Air Force Selects the Northrop Grumman APG-83 SABR for F-16 AESA Radar Upgrade|website=Northrop Grumman Newsroom|accessdate=7 February 2019}}

In January 2014, Singapore ordered 70 AN/APG-83 SABR for its 60 F-16C/D/G+ Block 52 upgrade, in a $2.43 billion deal.{{Cite web|last=Donald|first=David|title=U.S. Air Force Orders AESA Radar for F-16s|url=https://www.ainonline.com/aviation-news/defense/2020-03-03/us-air-force-orders-aesa-radar-f-16s|access-date=2021-08-18|website=Aviation International News|language=en}}{{Cite web|title=Singapore - F-16 Block 52 Upgrade {{!}} Defense Security Cooperation Agency|url=https://www.dsca.mil/press-media/major-arms-sales/singapore-f-16-block-52-upgrade|access-date=2021-08-18|website=www.dsca.mil}}{{Cite web|title=Trade Registers|url=https://armstrade.sipri.org/armstrade/page/trade_register.php|access-date=2021-08-18|website=armstrade.sipri.org}}

At August 2018, Northrop Grumman conducted an APG-83 fit test on an F-18.{{cite web|author=Julie Songer |url=https://news.northropgrumman.com/news/releases/northrop-grumman-performs-successful-sabr-fit-check-on-fa-18c-fighter-at-marine-corps-air-station-miramar |title=Northrop Grumman Performs Successful SABR Fit-Check on F/A-18C Fighter at Marine Corps Air Station Miramar | Northrop Grumman |publisher=News.northropgrumman.com |date=2018-08-13 |accessdate=2019-02-07}}

A derivative of the AN/APG-83, the SABR-GS (Global Strike), will be fitted to the Rockwell B-1 Lancer beginning in 2016.{{cite web|url=https://www.c4isrnet.com/intel-geoint/sensors/2015/05/13/b-1-to-get-new-radar/|title=B-1 to get new radar|first=Michael|last=Peck|date=8 August 2017|website=C4ISRNET|accessdate=7 February 2019}}{{cite web|url=http://www.globenewswire.com/newsarchive/noc/press/pages/news_releases.html?d=10133106|url-status=dead|archive-url=https://archive.today/20150512124305/http://www.globenewswire.com/newsarchive/noc/press/pages/news_releases.html?d=10133106|archive-date=12 May 2015|title=Northrop Grumman Corporation - News Releases|publisher=Globenewswire.com|access-date=7 August 2015}}{{cite web|url=http://www.northropgrumman.com/Capabilities/SABR-GS/Pages/default.aspx|title=Scalable Agile Beam Radar - Global Strike (SABR-GS) AESA for the B-1B|website=Northrop Grumman|accessdate=7 February 2019}}

In February 2019, Northrop Grumman offered SABR for retrofitting Boeing B-52H Stratofortress, which currently uses mechanically scanning AN/APQ-166 attack radar.Tyler Rogoway. [https://www.thedrive.com/the-war-zone/26651/northrop-grumman-is-vying-to-give-b-52-bomber-a-game-changing-new-radar Northrop Grumman Is Vying To Give B-52 Bomber A Game-Changing New Radar]. The War Zone (Feb 26, 2019) In July 2019, Boeing selected AN/APG-82(V)1/(AN/APG-79) from Raytheon for its B-52H radar modernization program.Vivienne Machi. [https://www.defensedaily.com/raytheon-wins-contract-to-provide-new-aesa-radars-to-b-52-aircraft/air-force/ Raytheon Wins Contract to Provide New AESA Radars to B-52 Aircraft]. Defense Daily (July 11, 2019)

Northrop Grumman to offer SABR radar for Seoul's FA-50 Block 20 fighter.{{cite web | url=https://www.janes.com/defence-news/news-detail/adex-2021-kai-reveals-more-details-about-fa-50-upgrade-plans | title=ADEX 2021: KAI reveals more details about FA-50 upgrade plans }}{{cite web | url=http://www.defenseindustrydaily.com/south-korea-launches-kf-16-fighter-upgrades-05404/ | title=South Korea Launches KF-16 Fighter Upgrades Upended }}

The US Air Force is installing the AN/APG-83 SABR on 608 of its F-16C/D Block 40/42 and F-16C/D 50/52 fighters.{{cite web |last1=Hunter |first1=Jamie |title=USAF launches huge upgrade program for its F-16s |url=https://skiesmag.com/news/usaf-launches-huge-upgrade-program-f-16-vipers/ |publisher=Skies Magazine |access-date=25 September 2022}}{{cite web |last1=Leone |first1=Dario |title=USAF to Upgrade 608 F-16 fighter jets to V variant in Viper Fleet largest Modification Work in History |url=https://theaviationgeekclub.com/tag/northrop-grumman-apg-83/ |publisher=The Aviation Geek Club |access-date=25 September 2022}}