AN/SPG-59
| Country of origin | United States | 
|---|---|
| Introduced | Canceled 1963 | 
| No. built | 1 | 
| Type | 3D Air-search and tracking | 
| Range | 110 nmi Maximum | 
| Azimuth | 0 to 360° | 
The AN/SPG-59 was an advanced PESA phased array radar developed by the U.S. Navy starting in 1958. It was one of the earliest phased array radars. AN/SPG-59 was intended to offer search, track and guidance from a single radar system and antenna as part of the Typhon combat system. Paired with the new Typhon missile, the system was to provide wide-area air defense out to about 110 nautical miles (200 km) from suitable anti-aircraft cruisers. Both the radar and missile proved to be well beyond the state of the art of the era, and the project was eventually canceled in December 1963.
In accordance with the Joint Electronics Type Designation System (JETDS), the "AN/SPG-59" designation represents the 59th design of an Army-Navy electronic device for waterborne fire control radar system. The JETDS system also now is used to name all Department of Defense electronic systems.