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Lockheed Martin eyes mid-2025 launch for its mid-size satellite platform

The planned demonstration mission in low Earth orbit, carrying a communications payload, comes after a three-year development period marked by supply chain disruptions.
Photo Credit: Firefly Aerospace / Trevor Mahlmann

Lockheed Martin has announced that its new mid-size satellite platform, LM 400, will make its orbital debut next year aboard a Firefly Aerospace rocket. The LM 400 satellite bus represents Lockheed’s bid to capture an optimal position in the satellite market: missions requiring more power and payload capacity than small satellites can provide, but not demanding the complexity of traditional large satellites.

The planned demonstration mission in low Earth orbit, carrying a communications payload, comes after a three-year development period marked by supply chain disruptions that delayed the platform’s original 2023 launch target. The programme also faced a setback when its initial launch provider, ABL Space, struggled to get its launch vehicle operational, prompting Lockheed to pivot to Firefly’s Alpha rocket under a new multi-launch agreement. The satellites will be manufactured at Lockheed’s facilities in Denver, Colorado.

This announcement comes on the heels of Lockheed Martin’s recent acquisition of small-satellite manufacturer Terran Orbital.