레이다 패트리엇의 레이다를 대체할 LTAMDS 저율생산 시작

[위종민]

When Computers Went To Sea | 육군의 레이더로 표적에 유도된 SM-6 - Daum 카페

When Computers Went To Sea | 폴란드, IAMD/IBCS를 지원하는 패트리어트 PAC3+ 발사대 48대 등 FMS 승인 - Daum 카페

현 패트리엇의 AN/MPQ-53을 대체할 LTAMDS가 저율 초기생산을 시작했네요. 총 94기 생산 예정으로, 미국 외 첫 해외 고객은 폴란드가 12대를 인수받을 예정입니다. 전율생산은 2028년 목표입니다. 

작년에 SM-6를 유도했던 그 물건이네요. 

미 육군, 차세대 방공 레이더 'LTAMDS' 저율 생산 승인…패트리엇 대체 본격화

미 육군이 기존 패트리엇 레이더를 대체할 차세대 방공 레이더인 'LTAMDS(Lower Tier Air and Missile Defense Sensor)'의 저율 초기 생산을 승인했습니다. 이는 15년 이상 진행된 방공체계 현대화 노력의 핵심 단계로, 레이시온이 개발을 주도하고 있습니다.​Breaking Defense+4Stock Titan+4Defense News+4

LTAMDS는 기존 패트리엇 레이더보다 성능이 두 배 향상되었으며, 360도 전방위 탐지 능력을 갖추고 있습니다. 또한, 통합전투지휘체계(IBCS)와 연동되어 PAC-2 및 PAC-3 MSE 미사일과 호환됩니다.​

2019년 계약 이후, 6기의 시제품이 제작되어 약 10,000시간의 테스트를 거쳤으며, 8회의 주요 미사일 비행 시험을 성공적으로 마쳤습니다. 육군은 이 중 2기를 괌에 배치하여 해당 지역의 방공 능력을 강화할 계획입니다.​

이번 저율 생산은 약 10기의 레이더로 구성되며, 전체 프로그램을 통해 총 94기의 LTAMDS가 생산될 예정입니다. 폴란드는 이 시스템의 첫 해외 고객으로, 12기를 주문하여 레이시온이 동시에 생산을 진행합니다.​Breaking Defense+3Stock Titan+3Defense News+3

LTAMDS는 향후 미 육군의 방공체계에서 핵심적인 역할을 수행할 것으로 기대되며, 글로벌 수요도 증가할 전망입니다.​Breaking Defense+3

Next-gen air defense radar approved for low-rate production

Next-gen air defense radar approved for low-rate production

By Jen Judson

 Apr 21, 2025, 08:01 PM

A full scale mock-up of Raytheon's Lower Tier Air and Missile Defense Sensor. (Raytheon)

The U.S. Army has formally approved a new air and missile defense sensor to replace its aging Patriot for low-rate production, according to its system developer Raytheon.

The service has been working on replacing its aging Patriot air and missile defense system for over 15 years, initially running a competition for a full system before canceling those plans in favor of developing a new command-and-control system and a new radar separately.

The Army’s Lower-Tier Air and Missile Defense Sensor, or LTAMDS, “is a huge, significant capability,” Maj. Gen. Frank Lozano, program executive officer for missiles and space, said in an exclusive interview with Defense News at Redstone Arsenal, Alabama, last month. “We anecdotally say it doubles legacy Patriot radar capability and not only does it double it, it provides you 360-degree capability.”

The radar is a major modernization element for the Army’s Integrated Air and Missile Defense system, along with a fully modernized — and already fielded — command-and-control capability called the Integrated Battle Command system.

The Army awarded Raytheon a contract in 2019 to deliver prototypes over five years. Building the radar rapidly was an ambitious challenge, according to Lozano, and the service decided to keep the sensor in testing for an extra year to ensure it was fully mature and ready for prime time.

Now, following several successful flight tests, including ones that combined other major air and missile defense elements over last fall and early this year, the system has been deemed ready for low-rate initial production and the service is preparing to send two prototype systems used during testing to Guam as it builds up the island’s air defense capability.

“I’ve been at Raytheon almost 40 years and worked a lot of large development programs and I have to say, I really don’t know of one that’s gone better,” Tom Laliberty, the company’s president of land and air defense systems, told Defense News. “To go from ... contract award, build six prototype units, test them over a few years and ... now ready to deploy them into theater is just unprecedented.”

LTAMDS went through eight major missile flight tests along with roughly 10,000 hours of other testing, including radiate time, radar tracking time and testing against wind, rain, dust and road marches, during which soldiers “kind of beat on them a little bit to see how they stand up,” Laliberty said.

Additionally, LTAMDS is part of a larger air defense system, so the company and the Army worked to mature interfaces with the Northrop Grumman-made Integrated Battle Command System and integrate two different missiles: Patriot Advanced Capability 2 and PAC-3 Missile Segment Enhancement.

“That’s really what that ... extra year was all about, the maturity of all that,” Laliberty noted.

The Army’s low-rate production lot will consist of roughly 10 radars. The service plans to build 94 radars total over the course of the program. Raytheon will also simultaneously build Poland’s 12 LTAMDS radars on order. Poland is the first foreign customer for the system.

Currently the time to build an LTAMDS is about 40 months on the production line, but the Army is working with Raytheon and has hired a consulting company to work on supply chain management in order to accelerate production time to 36 months (a formal program objective).

“From a cost perspective — [$13 billion across its life] — I think there’s a huge win here,” Lozano said. “It’s a huge program, and it’s likely going to be within the Army inventory for multiple decades. Because it’s a digital radar that is software driven, it’s going to mature and keep pace with the evolving threat.”

“We build the legacy Patriot radar for $110 to $115 million a copy,” he added. “Right now, the initial cost of the LTAMDS radar is about $125 to $130 million a copy. That cost will continue to come down. We’re building the newest, most advanced radar at almost the same exact price that we’re building the legacy radar.”

The Army’s low-rate production period will last roughly two and a half years. The service is planning for the LTAMDS initial operational test and eval‎uation to take place in the fourth quarter of fiscal 2026.

The service aims to reach full-rate production in 2028, Lozano said.

GhostEye® Family of Radars: LTAMDS | Raytheon

GhostEye

GhostEye® Family of Radars: LTAMDS

• Home/
• What We Do/
• Integrated Air & Missile Defense/
• GhostEye

Share

The radar that Raytheon is building for the U.S. Army is known as the Lower Tier Air and Missile Defense Sensor, or LTAMDS.

Now, as the first in a family of radars Raytheon is calling GhostEye®, it is being developed for the U.S. Army’s LTAMDS program. It is a radar designed to defeat advanced and next-generation threats, including hypersonic weapons, or those that fly faster than a mile a second.

Nothing goes unseen

LTAMDS has three antenna arrays – a primary array on the front, and two secondary arrays on the back. They work together, detecting and engaging multiple threats from any direction at the same time. 

Powerful performance

The primary array is about the same size as the array for the Patriot air and missile defense system, but it has more than twice the power. The radar is designed for the U.S. Army's Integrated Air and Missile Defense system, but it will also preserve existing military customers' investment in the Patriot system.

[백선호]

저 안테나들의 크기를 제대로 알 수 있는 그림이나 사진은 아무리 찾아도 없네요.

[위종민]

"primary array is about the same size as the array for the Patriot air and missile defense system, but it has more than twice the power."라면 MPQ-53의 사이즈랑 같다는 뜻일까요? https://www.radartutorial.eu/19.kartei/06.missile/karte003.en.html 여기에 따르면 MPQ-53의 어레이 크기는 직경 2.44m의 원형이네요. 저건 사각형같긴 한데.

[백선호]

사각형처럼 보이는 레이다도 사실은 잘 보면 동그란 모양이죠.

https://www.ausairpower.net/APA-Russian-SAM-Radars-DKB.html