AN/APQ-92

AN/APQ-92
Name	AN/APQ-92
Country	United States
Manufacturer	Westinghouse Electric Corporation
Introduced	1950s
Type	Radar system
Platforms	Bomber, reconnaissance aircraft

AN/APQ-92 The AN/APQ-92 was an airborne radar system developed in the early Cold War era for navigation, bombing, and maritime surveillance. It was produced by Westinghouse Electric Corporation and installed on several United States Air Force and United States Navy platforms during the 1950s and 1960s. The system contributed to all-weather operations for strategic and tactical missions during the Korean War and early Vietnam War periods.

Development and Design

Development of the system arose from post-World War II requirements established by the United States Air Force and influenced by lessons from the Battle of Midway, Operation Torch, and strategic concepts advanced in the Truman Doctrine era. Westinghouse leveraged technologies first explored in programs such as the CXAM radar work and matched specifications from the Air Materiel Command and Military Assistance Program. Design priorities included compactness for installation on aircraft like the B-26 Invader, RB-47 Stratojet, and variants of the Douglas A-26, with emphasis on reliability similar to systems used aboard USS Enterprise (CV-6)-era platforms. Engineering teams drew on expertise from personnel with service in the United States Navy and institutions such as the Massachusetts Institute of Technology Radiation Laboratory and the Bell Labs radar research groups.

Technical Specifications

The radar operated in a microwave band common to airborne navigation sets of the era, using magnetron-based transmitters influenced by developments at MIT, General Electric, and Raytheon. Its antenna assembly incorporated parabolic reflector designs similar to those used on contemporaneous sets installed on Boeing B-47 Stratojet reconnaissance variants. The receiver architecture used intermediate-frequency amplification techniques pioneered by engineers who had worked with Hughes Aircraft Company and Northrop Corporation. Power input and cooling solutions were engineered to interface with electrical systems standardized by the United States Air Force School of Applied Tactics and maintenance doctrines promulgated at Tinker Air Force Base and Wright-Patterson Air Force Base depots.

Operational History

Operational deployment began in the mid-1950s, with units integrated aboard strategic and tactical aircraft assigned to commands that traced lineage to the Strategic Air Command and tactical groups influenced by lessons from the Korean War. Crews trained at facilities associated with the Air Training Command and units operating out of bases such as Andersen Air Force Base and Naha Air Base employed the radar for overwater navigation, ground mapping, and target acquisition. The system saw use during early reconnaissance missions contemporaneous with operations involving aircraft like the U-2 precursor programs and influenced later sensor suites used in the Vietnam War air campaigns. Logistics and parts support often passed through supply chains connected to the Air Materiel Command and contractors working with the Defense Contract Management Agency (predecessor agencies).

Variants and Modifications

Several field modifications and factory-upgraded versions addressed frequency stability, display ergonomics, and integration with bombing systems derived from work by teams at Sandia National Laboratories and research contracts awarded by the Office of Naval Research. Adaptations included improved cathode-ray tube displays adopted from instrumentation in Lockheed Constellation avionics and interface kits to work with automatic bombing equipment influenced by developments at North American Aviation. Some variants incorporated improved clutter rejection algorithms developed in collaboration with scientists affiliated with Johns Hopkins University Applied Physics Laboratory.

Installation and Aircraft Integration

Installation kits were certified for airframes ranging from medium attack aircraft to long-range reconnaissance platforms. Integration required structural and electromagnetic compatibility assessments carried out at depots such as Kelly Air Force Base and Naval Air Station Patuxent River. Aircraft modifications included radome fairings adapted for models like the Douglas A-1 Skyraider and the Grumman S-2 Tracker in Coast Guard and Navy service. Wiring harnesses, dash panels, and mission consoles followed ergonomic guidance influenced by human factors research performed at NASA predecessor facilities and military ergonomics labs.

Performance and Capabilities

In operational use the radar provided acceptable resolution for navigation and maritime surface-search tasks, with range and bearing accuracy comparable to contemporaneous systems used on Lockheed P-3 Orion predecessors and mid-century patrol aircraft. Its capability set supported blind-bombing procedures and target correlation in conjunction with optical sighting equipment similar to that on North American B-25 Mitchell retrofit programs. Maintenance cycles and mean time between failures reflected industrial practices of the era established by suppliers such as Westinghouse Electric Corporation and monitored by procurement offices in the Department of the Air Force.

Category:Airborne radars