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Soyuz ST-B/Fregat-MT

Soyuz ST-B/Fregat-MT was the higher-performance French Guiana launch configuration based on Soyuz-2.1b, adapted for the Guiana Space Centre and paired with the enlarged-propellant Fregat-MT upper stage. Arianespace operated the expendable configuration from the first Kourou Soyuz launch in 2011 through the final Soyuz flight from Europe's Spaceport in 2022.

Identity

Aliases
Soyuz-ST-B/Fregat-MTSoyuz ST-B Fregat-MTSoyuz ST-BSoyuz-ST-BSoyuz 2.1b ST-B
Family Name
Soyuz ST
Full Name
Soyuz ST-B/Fregat-MT
Reusability
expendable
Slug
soyuz-st-b-fregat-mt
Status
retired
Type
rocket
Variant Name
ST-B/Fregat-MT

Details

Description
Soyuz ST-B/Fregat-MT was the higher-performance French Guiana launch configuration based on Soyuz-2.1b, adapted for the Guiana Space Centre and paired with the enlarged-propellant Fregat-MT upper stage. Arianespace operated the expendable configuration from the first Kourou Soyuz launch in 2011 through the final Soyuz flight from Europe's Spaceport in 2022.
First Flight Year
2,011
Last Flight Year
2,022
Operator Id
jd7am12wxsxa80t9ra90yhvbfh7kpqnn
Parent Vehicle Family Id
nd7qyrjethdy0frj4bzhapaqf98ahrad
Payload Capacity Kg
Gto
3,250
Sso
4,900
Stages Count
4
Strap On Boosters Count
4

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Creation Time
7/13/2026, 9:57:05 AM
Updated Time
7/14/2026, 6:42:24 AM