S7 Space was established in 2016 when S7 Airlines Group acquired the Sea Launch consortium, an international commercial space venture that operated a unique mobile sea-based launch platform.
The Sea Launch platform, the Ocean Odyssey launch vessel and the Sea Launch Commander support ship, allowed Zenit-3SL rockets to be launched from the equator in the Pacific Ocean, maximizing GTO payload capacity.
S7 Space planned to resume commercial launches and also announced plans to develop a new medium-class launch vehicle using liquid oxygen and methane propellants as a replacement for Sea Launch's Zenit rocket.
The company also participated in the Land Launch program using Zenit-3SLB rockets from Baikonur Cosmodrome for customers needing higher-inclination orbits.
The Sea Launch platform is a mobile, ocean-going launch facility that enables Zenit-3SL rockets to be launched from the equator in the Pacific Ocean, maximizing GTO payload capacity for commercial satellites.
The Zenit-3SL is a three-stage liquid-fueled rocket used for the Sea Launch program, capable of delivering up to 6,100 kg to geostationary transfer orbit from the equatorial Pacific Ocean.
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