Falcon 9 Block 5 | SDA Tranche 1 Transport Layer F

SpaceX · Falcon 9 · Vandenberg SFB, CA, USA

Dec 31, 2026 00:00 UTC To Be Determined

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Falcon 9 Block 5 | SDA Tranche 1 Transport Layer F on the pad

Launch details

Provider	SpaceX
Rocket	Falcon 9 Block 5
Mission	SDA Tranche 1 Transport Layer F
Mission type	Government/Top Secret
Orbit	Polar Orbit
Launch pad	Space Launch Complex 4E
Location	Vandenberg SFB, CA, USA
Launch time (UTC)	Dec 31, 2026 00:00 UTC
Window	Dec 31, 2026 00:00 UTC – Dec 31, 2026 00:00 UTC
Status	To Be Determined

Mission overview

Tranche 1 Transport Layer F is one of six missions by the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Transport Layer constellation, which will provide assured, resilient, low-latency military data and connectivity worldwide to the full range of warfighter platforms from Low Earth Orbit satellites. The constellation will be interconnected with Optical Inter-Satellite Links (OISLs) which have significantly increased performance over existing radio frequency crosslinks. It is expected to operate over Ka band, have stereo coverage and be dynamically networked for simpler hand-offs, greater bandwidth and fault tolerance.

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