Proton-M/Blok DM-03 was a four-stage configuration pairing Proton-M with the enlarged-propellant Blok DM-03 upper stage. Its three launches between 2010 and 2015 comprised two failed GLONASS missions and the successful Ekspress-AM8 deployment.
Proton-M/Blok DM-03 was a four-stage configuration pairing Proton-M with the enlarged-propellant Blok DM-03 upper stage. Its three launches between 2010 and 2015 comprised two failed GLONASS missions and the successful Ekspress-AM8 deployment.