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 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.
The SPY-1K is the smallest version of the radar currently offered, based on the same architecture as the 1D and 1F. It is intended for use on very small vessels such as corvettes, where even the SPY-1F would be too large. As of 2007, none are in service, although the radar is incorporated into the design of the yet-unbuilt AFCON Corvette.
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.
Contract Awarded for Delivery of Array, Navy / Search Protect, Yellow-1 (AN/ SPY-1) Radar Transmitters and MK99 Fire Control Systems to the US Navy
Nov 21, 2013; Contract Awarded for delivery of array, navy / search protect, yellow-1 (AN/SPY-1) radar transmitters and MK99 fire control...
Lockheed Martin Production of Aegis Spy-1 Radar Arrays for First Australian Air Warfare Destroyer Well Under Way.
Aug 11, 2008; Lockheed Martin (NYSE:LMT) completed production of two of the four SPY-1D(V) radar arrays for Australia's first Hobart-class Air...