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The AN/APG-78 Longbow is a millimeter-wave
Northrop Grumman AN/APG-78 Longbow Fire Control Radar (FCR) page
{{DEFAULTSORT:AN APG-78 Helicopter radars Military radars of the United States Military electronics of the United States Northrop Grumman radars Military equipment introduced in the 1990s
The AN/APG-78 Longbow is a millimeter-wave fire-control radar
A fire-control radar (FCR) is a radar that is designed specifically to provide information (mainly target azimuth, elevation, range and range rate) to a fire-control system in order to direct weapons such that they hit a target. They are sometim ...
(FCR) system for the AH-64D/E Apache attack helicopter
An attack helicopter is an armed helicopter with the primary role of an attack aircraft, with the offensive capability of engaging ground targets such as enemy infantry, military vehicles and fortifications. Due to their heavy armament they ...
. 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. By 1990, both AAWWS and MSIP were renamed Longbow. The radar is produced by Longbow LLC, a joint venture of Lockheed Martin
The Lockheed Martin Corporation is an American aerospace, arms, defense, information security, and technology corporation with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It ...
and Northrop Grumman.
Description
The AN/APG-78 Longbow is a millimeter-wavefire-control radar
A fire-control radar (FCR) is a radar that is designed specifically to provide information (mainly target azimuth, elevation, range and range rate) to a fire-control system in order to direct weapons such that they hit a target. They are sometim ...
(FCR) target acquisition system and the Radar Frequency Interferometer
Interferometry is a technique which uses the ''interference'' of superimposed waves to extract information. Interferometry typically uses electromagnetic waves and is an important investigative technique in the fields of astronomy, fiber op ...
(RFI), which are housed in a dome located above the main rotor. 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. 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.
The updated AN/APG-78 radar for the AH-64E Guardian has overwater capabilities, potentially enabling naval strikes.
Applications
* AgustaWestland Apache Longbow * Bell AH-1Z Viper (option) * Boeing AH-64D Apache Longbow * Boeing AH-64E Apache Guardian * Boeing–Sikorsky RAH-66 Comanche (canceled)See also
*List of radars
A radar is an electronic system used to determine and detect the range of target and maps various types of targets.This is a list of radars.
Argentina
Australia
Brazil
Egypt
Europe
India Military
Airborne
*LCA MMR - 3D advanced, ligh ...
* Searchwater
Searchwater was a maritime surveillance radar developed by Thorn EMI under project P1149. This type of radar has been in service with the Royal Air Force Hawker Siddeley Nimrod aboard the MR2 variant since the 1970s.
The retirement of the Royal N ...
* Seaspray (radar)
References
External links
Northrop Grumman AN/APG-78 Longbow Fire Control Radar (FCR) page
{{DEFAULTSORT:AN APG-78 Helicopter radars Military radars of the United States Military electronics of the United States Northrop Grumman radars Military equipment introduced in the 1990s