MOSCOW, July 8. /TASS/. Tests of RD-191M development engines designed for the Angara-A5M launch vehicle have ended, the Russian state space corporation Roscosmos said.
"Tests of RD-191M development engines have been completed. The single-staged liquid engine is designed for the Angara-A5M heavy class launch vehicle of the Amur space rocket complex," the corporation said on its Telegram channel.
The RD-191M operates on kerosene and liquid oxygen and differs from the RD-191 base engine by the thrust level, which was incremented by 10%.