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Northrop Grumman Completes PDR for 74 Tranche 2 SDA Satellites

Rachel Jewett By
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Northrop Grumman Completes PDR for 74 Tranche 2 SDA Satellites
Northrop Grumman’s rendering of the Tranche 2 Transport Layer. Photo: Northrop Grumman

Northrop Grumman [NOC] on Wednesday said it had completed the preliminary design review for the 74 satellites it is building for the Space Development Agency’s Tranche 2 Beta and Tranche 2 Alpha configurations. The company is building 38 satellites for the Tranche 2 Transport Layer (T2TL)-Alpha constellation under a contract awarded in October 2023. These satellites are designed to transmit beyond line-of-sight Link 16 data to military forces from space. The Alpha satellites are a continuation of Northrop Grumman’s Tranche…

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