SDA Tranche 1 Transport Layer F

Falcon 9 Block 5 · SpaceX

NET December 2026

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.

Schedule confidence

LOW

Treat this date as provisional.

Why does RocketRune rate it this way?
  • Only a target quarter has been announced.
  • The provider has not committed to this date.
  • No schedule changes recorded since RocketRune began tracking this launch.

This is a RocketRune assessment of how firm the published schedule is, not a prediction of launch success. It is calculated from the date precision and status published by the launch provider, plus the schedule changes RocketRune has recorded for this mission.

Launch site
Space Launch Complex 4E, Vandenberg SFB, CA, USA
Vehicle
Falcon 9 Block 5
Provider
SpaceX
Orbit
PO
Payload
SDA Tranche 1 Transport Layer F
Status
To Be Determined
Vehicle height
70 m
Liftoff thrust
7,607 kN
Vehicle type flights
632
Vehicle type success rate
99.8%

What changed

  1. OCT 31, 2023 · 7:59 PM UTC
    Adding launch
    Launch Library note·Source

RocketRune has been tracking this launch since it entered the schedule.

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