AN/FPS-24

AN/FPS-24
Name	AN/FPS-24
Caption	AN/FPS-24 radar antenna
Country	United States
Manufacturer	Westinghouse Electric Corporation
Introduced	1960s
Type	Long-range search radar

AN/FPS-24 was a Cold War era long-range, medium- to high-altitude search radar developed for continental air defense. It entered service amid tensions involving Berlin Crisis of 1961, Cuban Missile Crisis, and NATO planning, intended to detect high-performance aircraft associated with events like the U-2 incident and the emergence of Soviet designs such as the MiG-25. The system linked into networks overseen by organizations including the North American Aerospace Defense Command, the Air Defense Command, and the Semi-Automatic Ground Environment.

Design and Development

The AN/FPS-24 originated from requirements set by the United States Air Force and industrial partners including Westinghouse Electric Corporation and contractors interacting with programs under the oversight of Advanced Research Projects Agency-era initiatives and boards such as the Weapons Systems Evaluation Group. Engineering efforts drew on lessons from earlier projects like the AN/FPS-20 and projects influenced by firms engaged with the Johns Hopkins University Applied Physics Laboratory. Prototype testing occurred alongside systems evaluated at installations such as White Sands Missile Range and research centers including Massachusetts Institute of Technology facilities related to air defense research. Development timelines intersected with policy decisions involving President Dwight D. Eisenhower and procurement influenced by officials from the Department of Defense and committees chaired by figures tied to the Arms Control and Disarmament Agency.

Technical Specifications

The radar employed a large rotating antenna using high-power electronics produced by contractors linked with Bell Laboratories-era microwave research and manufacturing techniques practiced by General Electric and Raytheon competitors. Key components referenced contemporary work at Oak Ridge National Laboratory and designs informed by magnetron and klystron research at Stanford University and California Institute of Technology. Performance metrics were measured against criteria used in trials at Eglin Air Force Base and benchmarked with systems studied by analysts from RAND Corporation. The AN/FPS-24 featured pulse characteristics and beam shaping comparable to other search radars evaluated during exercises such as Operation Sky Shield and demonstrated sensitivity parameters relevant to tracking bogeys similar to aircraft associated with incidents like the Berlin Airlift era testing. Power systems and cooling designs paralleled solutions explored at Argonne National Laboratory and manufacturing quality standards overseen by inspectors from the General Accounting Office.

Operational History

Operators deployed AN/FPS-24 installations at stations coordinated by units from the Air National Guard and squadrons assigned to regional divisions influenced by commands at Tyndall Air Force Base and North Bay centers. The radar was active during high-profile episodes including heightened alert statuses related to Cuban Missile Crisis responses and layered defense postures contemporaneous with deployments in support of NATO exercises such as Operation Mainbrace. Maintenance practices reflected logistics concepts developed by personnel trained at facilities like the Naval Air Station Glenview and technicians certified through programs associated with College of Engineering, University of Illinois partnerships. Incidents involving mechanical failures prompted investigations by boards with participation from representatives of the Federal Communications Commission and safety reviews referencing standards set by the American National Standards Institute.

Variants and Modifications

Subsequent modifications incorporated technologies pioneered in research projects at Bell Labs, Lincoln Laboratory, and Sperry Corporation, resulting in fielded variants adapted for environmental conditions found in locales managed by agencies like the National Park Service and bases near municipalities such as Fairbanks, Alaska. Upgrades integrated subsystems similar to those developed for arrays used in programs at the Jet Propulsion Laboratory and components patterned after avionics improvements tested at Wright-Patterson Air Force Base. Retrofit initiatives involved coordination with contractors including Boeing spin-offs, and revisions were influenced by evaluations from groups including the Institute of Electrical and Electronics Engineers.

Deployment and Sites

Deployments spanned air defense installations across the United States and allied territories coordinated with commands headquartered near Norad Region Center equivalents and combined centers with links to sites like Clear Air Force Station, Kaena Point, and stations in the continental network analogous to those at Barksdale Air Force Base. Selected sites were proximate to communities serviced by infrastructures such as the Alaska Railroad and logistics hubs used during operations involving Elmendorf Air Force Base. International placements were informed by bilateral agreements similar to ones negotiated with governments linked to NATO partners headquartered in cities like Brussels and coordinated with regional commands located in places such as Ramstein Air Base.

Replacement and Legacy

The AN/FPS-24 was gradually replaced by successor radars and integrated sensor packages developed under programs influenced by research at Lincoln Laboratory, procurement exercises overseen by the Defense Advanced Research Projects Agency, and modernization efforts tied to the Joint Surveillance System. Legacy influence is evident in technologies later adopted by contractors like Northrop Grumman and incorporated into systems used by commands with bases at Cheyenne Mountain Complex and facilities managed by the Federal Aviation Administration. Historical assessments appear in collections at institutions such as the Smithsonian Institution and archives connected to the National Air and Space Museum.

Category:Cold War radar