AN/TPY-4
Initial Operational Capability (IOC) : 2023
Total Production : 23
| Model | Status | Year | Produced |
|---|---|---|---|
| AN/TPY-4(V)1 | Active | 2023 | 23 |
AN/TPY-4(V)1
Group : Radar Systems
Status : Active
Also Known As : 3DELRR, Three-Dimensional Expeditionary Long-Range Radar, TPY-X
Origin : 
United States of America
Contractor : Lockheed Martin
Initial Operational Capability (IOC) : 2023
Total Production : 23
Unitary Cost : USD $22 million
The AN/TPY-4, formerly known as the TPY-X, is a ground-based, 3D, AESA, L-band, multi-function long-range radar for air defense surveillance incorporating Gallium Nitride (GaN) technology. The TPY-4 radar offers early warning, situational awareness, tactical ballistic missile surveillance and air defense in contested electromagnetic environments. The rotating antenna at 6 rounds per minute provides 360-degree coverage with a maximum detection range of 555 kilometers while in stop/stare non-rotating mode provides 90-degree coverage with a maximum detection range of 1,000 kilometers. The TPY-4 radar can detect and track targets flying at 30 kilometers of altitude as well as surface targets at -6 degrees supporting ground-based maritime surveillance. The TPY-4 radar development started in the early 2010s and was ready for testing and deployment in 2021. The first production radar was completed in May 2022 and was planned for fielding within 2023. In November 2022, Norway ordered the TPY-4 radar for its NORSE project.
Operators
| Country | Status | State | Notes |
|---|---|---|---|
 Norway | Planned | 11 | Ordered in 2022 (8) and 2024 (3) |
 Sweden | Planned | 2 | |
| United States of America | Active | 10 | Ordered in 2021 (3), 2024 (3) and June 2024 (4) |
Specifications
| Notes | ||
|---|---|---|
| Degree | ||
| Azimuth Coverage | 360 ° | |
| Coverage in Elevation | 44 ° | +38 to -6 |
| Performance | ||
| Max Detection Range | 1,000 kilometer | |
| Max Detection Range in Altitude | 30.5 kilometer | |
| Rate | ||
| Max Antenna Rotation Speed | 6 roundperminute | |
News
SYRACUSE, N.Y., June 4, 2025 — The Swedish Defence Materiel Administration selected the Lockheed Martin TPY-4 next-generation ground-based air surveillance radar to enhance
April 7th, 2025 – Lockheed Martin [NYSE: LMT] delivered the first U.S. Air Force TPY-4 radar after successfully completing Early Phase Testing, marking a significant milestone
Lockheed Martin Rotary and Mission Systems, Liverpool, New York, has been awarded a $118,379,696 modification (P00052) to a previously awarded contract (FA8730-21-C-0022)
Syracuse, NY, September 16, 2024 – The U.S. Air Force Three-Dimensional Expeditionary Long Rang Radar (3DELRR) program team and Lockheed Martin successfully accomplished
Syracuse, N.Y., Sept. 11, 2024 - The Norwegian Defence Materiel Agency (NDMA) exercised a contract option to procure three additional TPY-4 radars from Lockheed Martin (LM),
Lockheed Martin Rotary and Mission Systems, Liverpool, New York, has been awarded an $81,297,720 modification (P00036) to exercise an option to previously awarded contract
Lockheed Martin Rotary and Mission Systems, Liverpool, New York, was awarded a $65,105,306 modification (P00025) to previously awarded FA8730-21-C-0022 to for exercise of
OSLO Nov. 17, 2022 – Today the Royal Norwegian Air Force selected the Lockheed Martin (NYSE: LMT) TPY-4 next generation ground-based air surveillance radar to enhance the
Kongsberg Defence & Aerospace (KONGSBERG) and Lockheed Martin signed a contract for KONGSBERG’s support of the delivery of the TPY-4 radar to Norway for the Norwegian Radar
Syracuse, New York, May 4, 2022 – The world’s most advanced and capable transportable or fixed air defense long-range radar, Lockheed Martin’s first AN/TPY-4 radar – recently
SYRACUSE, N.Y., Sept. 13, 2021 – As the world’s most capable and flexible ground based multi-function long-range radar, Lockheed Martin’s TPY-4 has received its official U.
Photo Gallery
Notes
State Latest Known holdings/Original Procurement
Com - Date of Commissioning
Decom - Date of Decommissioning
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