UR-900
The UR-900 was the ultimate Universal Rocket application, an ultra-heavy-lift booster for crewed expeditions to other planets. As such it remained a paper project.
Read more about this topic: Universal Rocket
UR-900
The UR-900 was the ultimate Universal Rocket application, an ultra-heavy-lift booster for crewed expeditions to other planets. As such it remained a paper project.
Read more about this topic: Universal Rocket