SHIPBOARD RADAR SYSTEMS
DUAL-BAND RADAR (DBR) SUITE:
SPY- 3 MULTIFUNCTION RADAR,
VOLUME-SEARCH RADAR (VSR)
BRIEFING: The DBR is the air-defense radar suite that was
developed for the Zumwalt-class destroyer and Gerald R.
Ford-class aircraft carrier. It combines an air search radar
and precision-tracking radar into a single system, with each
operating simultaneously in a different frequency band while
sharing a common processing and control suite. Both are
advanced, electronically steered, phased-array radars that will
be the first to enter service on a Navy ship.
The S-band three-dimensional VSR will search for highflying threats at long range and hand over targets to an
X-band fire-control radar, the SPY- 3. The SPY- 3 will search
close around the ship and rapidly out to the horizon to detect
fast, low-altitude anti-ship missiles and aircraft. The DBR will
be fully automatic, requiring no dedicated operator or manned
The DBR completed its critical design review in November
2009. In 2010, the Navy decided to install only the SPY- 3 on
the Zumwalt-class destroyer, with software modifications to
compensate for the lack of a VSR.
CONTRACTORS: . . . . . . . . . Raytheon Co., Lockheed Martin Corp.
SPY- 6 AIR AND MISSILE
DEFENSE RADAR (AMDR)
BRIEFING: The SPY- 6 AMDR is a program to develop the next
generation of shipboard air defense radars. The AMDR X-band
radar will provide horizon search, precision tracking, missile
communication and terminal illumination.
The AMDR S-band radar provides volume search, tracking,
BMD discrimination and missile communications. A radar suite
controller will integrate the radars with the ship’s combat system. The AMDR suite will be scalable for multiple platforms.
In October 2013, the Navy selected Raytheon to design and
build the S-band portion of the AMDR and the radar suite
controller. A version of the SPQ-9B radar will fill the X-band
requirement. In July 2014, the AMDR completed its hardware
preliminary design review and integrated baseline review.
The radar conducted a successful tracking of a simulated
target in November 2014. Critical design review was completed
in May 2015. The first array was delivered to the Pacific Missile
Range Facility in Hawaii in July 2016 for testing. The AMDR
will be installed on Flight III Arleigh Burke-class DDGs.
CONTRACTORS: . . . . . . . . . Raytheon Integrated Defense Systems (prime),
General Dynamics Advanced Information Systems
ENTERPRISE AIR SURVEILLANCE
BRIEFING: The EASR will be a new-design air surveillance
radar for the second Ford-class aircraft carrier, John F. Kennedy
— in lieu of the Dual-Band Radar — and the America-class
amphibious assault ships starting with LHA 8. It also will
be installed on the LX(R). Raytheon was awarded a con-
tract in August 2016 for the engineering and manufacturing
development of the EASR. Two variants — a rotating phased
array and a three-faced fixed array — will be developed. Initial
operational capability (IOC) is planned for 2025.
CON TRAC TOR: . . . . . . . . . . Raytheon Integrated Defense Systems
BRIEFING: The SPQ-9B is an X-band, high-resolution,
rotating phased-array radar designed to detect and track
low-altitude cruise missiles in a high-clutter environment.
The pulse-Doppler track-while-scan radar allows detection
and tracking at long ranges, giving a ship’s combat systems
time to engage an incoming supersonic missile at the maximum ranges of its defenses. The SPQ-9B is integrated with
the SSDS onboard aircraft carriers and amphibious assault
ships and with the Aegis Combat System as part of the Cruiser
Modernization Program and Destroyer Modernization Program.
CON TRAC TOR: . . . . . . . . . . Northrop Grumman Corp.
SPS- 48 RADAR
BRIEFING: The SPS-48E S-band three-dimensional radar is a
long-range air-detection and tracking radar installed on aircraft
carriers and some amphibious warfare ships. In April 2006, the
Navy awarded ITT Gilfillan a contract to develop a modernized
SPS-48G(V) under the Radar Obsolescence, Availability Recovery
program that will cut the total cost of ownership (including
maintenance) by reducing the impact of obsolescence in major
subassemblies and improve operational availability. Once fully
implemented, it will enable the SPS- 48 to remain in service
The first SPS-48Gs were delivered in October 2009. The
SPS-48G is being installed on aircraft carriers, amphibious
assault ships and amphibious transport dock ships.
CON TRAC TOR: . . . . . . . . . . Harris Corp. (Exelis)
SPS- 49 RADAR
BRIEFING: The SPS- 49 L-band radar is a long-range, two-dimensional, air-search radar installed on many Navy ships.
On Ticonderoga-class Aegis cruisers, it also complements
the SPY- 1 radar suite. The Navy has begun a study to explore
options to replace the SPS-48/49 on aircraft carriers and
amphibious assault ships.
CON TRAC TOR: . . . . . . . . . . Raytheon Co.
BRIEFING: The SPS- 67 and SPS- 73 are surface search and
navigation radars used on many classes of surface ships.
The SPS- 74 is an X-band surface search radar optimized for
submarine periscope detection and installed on four aircraft
carriers. Further SPS- 74 production was canceled in favor of
the SPQ-9B with periscope-detection capability.
CON TRAC TORS: . . . . . . . . . Northrop Grumman Corp. (SPS-67/74), Raytheon Co.