This is the initial release of the Energia-M rocket.
Idealized in the early 1990's to compete with other available launchers in the 30 ton range, the Energia-M utilized hardware from the super-heavy Energia rocket. Â Due to political pressures, the Angara launcher was instead chosen to be the developed and the Energia-M was cancelled.
To install; simply unzip into your Orbiter folder, while keeping directory structure.
Multistage2 (not included) and stage.dll (also not included) are the only required dependencies, see the users guide for recommended add-ons to enhance the visual appeal.
Happy flying and Hail Probe!