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Atlas I AC-74 UHF F1 Flight Vehicle

General Dynamics Atlas I vehicle AC-74 launched the first UHF Follow-On military communications satellite on 25 March 1993. Atlas sustainer underperformance left UHF F1 in the wrong orbit; controllers then used a series of 25 spacecraft maneuvers to salvage the satellite into a super-synchronous orbit, making the launch a partial performance failure rather than a total payload loss.

Identity

Aliases
Atlas I AC-74UHF Follow-On F1 launch vehicleUFO F1 launch vehicle
Name
Atlas I AC-74 UHF F1 Flight Vehicle
Status
retired

Details

Description
General Dynamics Atlas I vehicle AC-74 launched the first UHF Follow-On military communications satellite on 25 March 1993. Atlas sustainer underperformance left UHF F1 in the wrong orbit; controllers then used a series of 25 spacecraft maneuvers to salvage the satellite into a super-synchronous orbit, making the launch a partial performance failure rather than a total payload loss.
First Flight Date
1993-03-25
Manufacturer
Operator
Vehicle Family

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Creation Time
July 14, 2026 at 09:10:10 UTC
Updated Time
July 14, 2026 at 09:10:10 UTC

Other

Last Flight Date
1993-03-25
Search Name
Atlas I AC-74 UHF F1 Flight Vehicle Atlas I AC-74 UHF Follow-On F1 launch vehicle UFO F1 launch vehicle
Vehicle Code
AC-74