The Proton Breeze-M from International Launch Services is a Heavy-Lift Orbital Launch Vehicle designed to deliver high-mass payloads to a wide range of Earth orbits, including Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Highly Elliptical Orbit (HEO), Geostationary Transfer Orbit (GTO), Geostationary Orbit (GSO), and Sub-orbital Spaceflight Trajectories (SSTO). Known for its high payload capacity and mission flexibility, Proton Breeze-M supports complex multi-burn missions and precise orbital insertions.
The launch vehicle is powered by six RD-276 engines on the first stage, generating up to 11.0 MN of vacuum thrust. The second stage employs four RD-0210/0211 engines producing a combined thrust of 2.4 MN, while the third stage is driven by a single RD-0213 engine delivering 583 kN of thrust. Orbital insertion and mission flexibility are enabled by the Breeze-M upper stage, which is equipped with a 20 kN gimbaled 14D30 engine optimized for long-duration, multi-restart operations.
Proton Breeze-M offers a payload capacity of up to 6.27 metric tons to GTO and up to 6.47 metric tons to SSTO, making it suitable for large commercial satellites, government spacecraft, and interplanetary missions. The vehicle supports both 13-meter and 15-meter payload fairings, providing a maximum payload envelope diameter of 3.87 meters, along with multiple adapter and separation system configurations for broad spacecraft compatibility.
