The Zenit-3SL Integrated Launch Vehicle is designed to deliver heavy spacecraft into mean and high circular and elliptical near-earth orbits, geosynchronous transfer and geostationary orbits, as well as escape trajectories with orbit inclination ±180°.  

The Zenit-3SL Integrated Launch Vehicle operates on environmentally safe propellant components liquid oxygen and kerosene RG-1.

Horizontal assembly and transportation technology enables to significantly simplify the technological equipment system and prelaunch processing procedures.

Prelaunch processing is fully automatic providing a means for the ILV launch from the sea launch platform according to “unattended launch” scheme and the highest level of personnel safety.

Launch vehicles are launched from the Pacific Ocean. The Zenit-3SL Integrated Launch Vehicle is operated as a part of the Sea Launch Rocket Space Complex.

The Zenit-3SL launch vehicle is developed on the basis of the Zenit-2S two-stage launch vehicle (developed by Yuzhnoye SDO), DM-SL Upper Stage (developed by RSC Energia) and Payload Unit (developed by Boeing). The first launch took place on March 28, 1999. Total 36 missions were fired, 33 of them – successful.