Energia Rocket and Space Corporation (RSC Energia) is developing a DM-type upper stage for Angara-A5 heavy launch vehicle (LV), said in the quarter report, posted at the corporation’s website, TASS reports.
“Development of DM-type upper stage is being carried out at Plesetsk cosmodrome. The upper stage is intended for Angara-A5 LV designed to place different spacecraft into orbit in accordance with federal programs,” said in the document.
A family of D-type upper stages was developed on the basis of the fifth stage of N1-L3 Soviet launch vehicle, designed for performing flights to the Moon. The upper stage is powered by kerosene-oxygen engines. DM model was developed in order to place satellites into geostationary orbit; at present DM-2, MD-2M and DM-03 models are used.
Earlier President of RSC Energia Vladimir Solntsev said that DM upper stage might be used in the network of lunar exploration program. It was reported that Angara-A5 heavy launch vehicles may be upgraded and the new version may be used to perform flights to the Moon. In particular, this refers to using a third stage and upper stage powered by oxygen-hydrogen engines for placing payloads into lunar orbit.
Moreover, draft Federal Space Program for 2016-2025 includes a project for development of an eco-friendly upper stage for Soyuz-2 LV (it will replace the currently operated Fregat upper stage) as well as space tugs.
