AN/SPY-1
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| Image:USS Lake Erie in port 04017003.jpg The AN/SPY-1 radar antennas can be seen on the front and starboard side of the superstructure of USS Lake Erie (CG-70). | |
| Country of origin: | United States |
|---|---|
| Introduced: | 1973 |
| Type: | 3D Air-search |
| Frequency: | S band[1] |
| Range: | 100+ nm[2] |
| Azimuth: | 0-360º |
| Elevation: | Horizon-Zenith[3] |
| Power: | 4 MW (peak) |
The AN/SPY-1 is a US naval radar system manufactured by Lockheed Martin. A 4 MW phased array system, it is a key component of the Aegis combat system.
The system was first installed in 1973 on the USS Norton Sound (AVM-1) and entered active service in 1983 as the SPY-1A on USS Ticonderoga. The –1A was installed on ships up to CG-58, with the –1B upgrade first installed on Princeton in 1986. The upgraded –1B(V) was retrofitted to existing ships from CG-59 up to the last, CG-73.
The SPY-1D was first installed on Arleigh Burke in 1991. It is a variant of the –1B to fit the Arleigh Burke class. The –1D(V), the Littoral Warfare Radar, was an upgrade introduced in 1998 for high clutter near-coast operations, an area in which the earlier "blue water" systems were especially weak.
The SPY-1F is a smaller version of the 1D designed to fit frigates. It is not used by the US Navy but has been exported to Spain and Norway. The origin of the SPY-1F can be traced back to the Frigate Array Radar System (FARS) proposed to the German Navy in the 1980s. SPY-1F has a maximum range of 200 nautical miles according to the Norwegian Armed Forces.
Aegis cruisers also require the AN/SPG-62 fire control director to provide terminal guidance of the Standard missile during the final seconds prior to intercept.[4]
[edit] Variants
- AN/SPY-1 - Prototypes, USS Norton Sound (AVM-1).
- AN/SPY-1A - Ticonderoga class cruisers up to CG-58.
- AN/SPY-B - Ticonderoga class cruisers starting at CG-59.
- AN/SPY-1B(V) - Upgrade to -1B version, retrofitted to CG-59 and up.
- AN/SPY-1D - Variant of -1B designed for Arleigh Burke class destroyers and JDS Kongō class destroyers.
- AN/SPY-1D(V) - Littoral Warfare Radar upgrade to the -1D variant for DDG 51 Flight IIA and up.
- AN/SPY-1F - Smaller version of the -1D designed to fit frigates.
