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Northrop Grumman rapidly completes their CDR for the Tranche 1 Transport Layer

April 19, 2023

Northrop Grumman Corporation (NYSE: NOC) recently completed a critical design review (CDR) for the firm’s Tranche 1 Transport Layer (T1TL), part of Space Development Agency’s (SDA) LEO network designed to communicate vital information to wherever it’s needed to support U.S. troops on the ground, quickly and securely.

The Space Development Agency has formerly announced that Northrop Grumman is under contract to develop and build 42 Tranche 1 Transport Layer satellites and 14 Tranche 1 Tracking Layer satellites as part of its Proliferated Warfighter Space Architecture. Image is courtesy of Northrop Grumman.

The Tranche 1 Transport Layer (T1TL) communication satellites will provide resilient, low-latency, high-volume data transport supporting U.S. military missions around the world. Designed to connect elements of an integrated sensing architecture, the network will deliver persistent, secure connectivity, and serve as a critical element for advancing the U.S. Department of Defense’s vision for Joint All Domain Command and Control.

The Defense Department’s efforts to bring Joint All Domain Command and Control, or JADC2, to the warfighter, will provide a better way to sense, make sense of and act on the volumes of information generated into today’s joint, all-domain warfighting environment. Photo By: Jennifer Gonzalez, U.S. Marine Corps

SDA formerly announced that Northrop Grumman is under contract to provide the agency with 56 satellites, including the 42 communication satellites in the Tranche 1 Transport layer and 14 for the Tranche 1 Tracking layer, which includes an infrared sensor payload. The Tracking layer program recently completed its preliminary design review. Northrop Grumman is also providing the ground system for both its Transport and Tracking constellations.

“We are leveraging our commercial marketplace partnerships to deliver a rapid, affordable, highly effective solution for SDA. Our T1TL solution builds on our decades of end-to-end mission expertise. We are uniquely capable of delivering a credible capability to support the warfighter.” — Blake Bullock, vice president, communication systems, strategic space systems, Northrop Grumman

Filed Under: CDR, Constellation, JADC2, LEO, Military, MILSATCOM, Northrop Grumman, SDA, SmallSat, SmallSat Builds, SmallSat Design, Space Development Agency (SDA), Tranche 1 Transport Layer (T1TL)

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