Radar AN/APY-10

Radar AN/APY-10

The AN/APY-10 is an American multifunction radar developed for the U.S. Navy’s Boeing P-8 Poseidon maritime patrol and surveillance aircraft. AN/APY-10 is the latest descendant of a radar family originally developed by Texas Instruments, and now Raytheon after it acquired the radar business of TI, for Lockheed P-3 Orion, the predecessor of P-8.

The AN/APY-10 mechanically scanned radar is a development of Raytheon’s AN/APS-149 radar. Compared to the AN/APS-137, it is smaller in size, lighter, and uses less power. The radar is optimized for maritime, littoral and overland surveillance.

The AN/APY-10 is able to provide high resolution radar images in both overland and water modes. Available modes include color weather, synthetic aperture radar (SAR), inverse synthetic aperture radar (ISAR), periscope detection, and navigation. ISAR mode is said to be capable of both detecting, imaging and classifying surface targets at long range using a variety of resolutions.


The AN/APY-10 maritime, littoral and overland surveillance radar is a new design supporting the U.S. Navy’s next-generation multimission patrol aircraft, the P-8 Poseidon. Raytheon Intelligence & Space is an industry team member of the U.S. Navy P-8A program, led by Boeing. AN/APY-10 was newly designated by the Navy because of extensive modifications over previous AN/APS-137 radars. These improvements were made by reducing size, weight and power; increasing MTBF; and adding additional target track capability, a new color weather avoidance mode, and room for technology growth.

The AN/APY-10 is fully integrated into Boeing’s Mission Control and Display System for control, display and data distribution on the Poseidon. The P-8A radar is also the only system of its type to provide a dedicated short exposure submarine periscope detection mode as well as ultra-high resolution imaging modes for maritime and overland operations, delivering uncompromised performance in every operational environment.


Modes of operation -Navigate
-Surface Search
-Wx Radar
-Synthetic Aperture Radar (SAR)
-Inverse Synthetic Aperture Radar (ISAR)
Navigation Mode -200nm max range
-Antenna speed of 6rpm
-TWS available
-Intended for coastline mapping
Periscope Mode -32nm max range
-Antenna speed of 300rpm
-TWS is limited to passive or dead reckoning
-Used to find small contacts such as a persicope
-Typically done at low altitudes

Search Mode -200nm max range
-Antenna speed of 60rpm
-TWS is available
-Intended for long range surface search
-Suppresses sea clutter
-Enhances Target Brightness

Synthetic Aperture Radar -Requires flight </= 450kts, above 4000′ AGL, and Straight and Level
-TWS is limited to passive or dead reckoning
-Utilizes radar platform motion to generate the doppler frequency shift
-Utilized against land based targets
-Radar is pointed

Inverse Synthetic Aperture Radar -TWS is limited to passive or dead reckoning
-Used against surface targets
-Utilizes motion of the target to gain doppler frequency shift
-Can be used to classify contacts
Sea State and target size affect image generation
-Radar is pointed

SAR Resolution -Measured R1-R5
-R1 is the highest resolution

Grazing Angle A 4-9° grazing angle is required
Related Armament

One thought on “Radar AN/APY-10

Leave a Reply

Your email address will not be published. Required fields are marked *