AN/APG-78 Longbow explained

AN/APG-78 Longbow
Country:United States
Manufacturer:Lockheed Martin / Northrop Grumman
Type:Millimeter-wave fire-control radar
Frequency:Ka band
Range:8km (05miles)

The AN/APG-78 Longbow is a millimeter-wave fire-control radar (FCR) system for the AH-64D/E Apache attack helicopter. It was initially developed in the 1980s as the Airborne Adverse Weather Weapon System (AAWWS) as part of the Multi-Stage Improvement Program (MSIP) to enhance the AH-64A.[1] By 1990, both AAWWS and MSIP were renamed Longbow.[2] The radar is produced by Longbow LLC, a joint venture of Lockheed Martin and Northrop Grumman.[3]

Description

The AN/APG-78 Longbow is a millimeter-wave fire-control radar (FCR) target acquisition system and the Radar Frequency Interferometer (RFI), which are housed in a dome located above the main rotor.[4] [5] The radome's raised position enables target detection while the helicopter is behind obstacles (e.g. terrain, trees or buildings). The APG-78 is capable of simultaneously tracking up to 128 targets and engaging up to 16 at once; an attack can be initiated within 30 seconds.[6] [7] A radio modem integrated with the sensor suite allows data to be shared with ground units and other Apaches, allowing them to fire on targets detected by a single helicopter.[8]

The updated AN/APG-78 radar for the AH-64E Guardian has overwater capabilities, potentially enabling naval strikes.[9] [10]

Applications

See also

External links

Notes and References

  1. June 1989 . Flight trials begin for AAWWS . International Defense Review . Jane's Information Group . 22 . 6 . 720.
  2. December 1990 . Longbow design and development contract . International Defense Review . Jane's Information Group . 23 . 1695.
  3. Web site: Longbow FCR Product Card. Lockheed Martin. 17 June 2020.
  4. News: McDonnell-Bell plan Longbow-radar for LHX . https://archive.today/20120721175044/http://www.accessmylibrary.com/article-1G1-8202632/mcdonnell-bell-plan-longbow.html . dead . 21 July 2012 . Defense Daily . 22 February 1990.
  5. Web site: AN/APR-48A Radar Frequency Interferometer . https://web.archive.org/web/20111020223512/http://www.lockheedmartin.com/data/assets/12432.pdf . dead . 20 October 2011 . Lockheed Martin . 20 July 2011.
  6. Web site: Defense & Security Intelligence & Analysis: IHS Jane's – IHS . janes.com . 1 April 2015 . 25 October 2012 . https://web.archive.org/web/20121025065224/http://articles.janes.com/articles/Janes-Radar-and-Electronic-Warfare-Systems/AN-APG-78-Longbow-fire-control-radar-United-States.html . dead .
  7. Web site: Defense & Security Intelligence & Analysis: IHS Jane's – IHS . janes.com . 1 April 2015 . 16 February 2013 . https://archive.today/20130216074007/http://articles.janes.com/articles/Janes-Avionics/AN-APG-78-Longbow-radar-United-States.html . dead .
  8. Web site: Helicopter profile: Boeing AH-64 Apache . FlightGlobal . 2 February 2010.
  9. Web site: US Army fields first AH-64E unit, but more improvements to come . Dave . Majumdar . 9 January 2013 . FlightGlobal.
  10. Web site: Drwiega . Andrew . U.S. Army's Apache Maritime Role . . 10 November 2014 . 16 June 2020 . 29 November 2014 . https://web.archive.org/web/20141129022537/http://www.aviationtoday.com/rw/topstories/U-S-Armys-Apache-Maritime-Role_83418.html . dead .

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