MDV Leviathan B-I

MDV Leviathan B-I | Sierra Dynamics

Designation: MDV (Megastructure Deployment Vehicle)
Variant: Leviathan B-I
Developer: Sierra Dynamics
Recommended Payload: 550kt to Low Droo Orbit

Description

The MDV Leviathan B-I stands as the first major step in Sierra Dynamics’ pursuit of true heavy-lift capability.
Born from countless tests, redesigns, and software integrations, the Leviathan series was built to deploy orbital megastructures and beyond—where traditional rockets fail to meet scale.

The journey began with nothing but an idea: a vehicle large enough to deploy cities in orbit, yet precise enough to execute complex ascent programs. Over time, Sierra Dynamics refined the framework—layer by layer—until the B-I configuration became the first operational success of the Leviathan line.

Every detail, from structural reinforcement to onboard flight automation, reflects the same goal: stable, autonomous lift under immense stress. The B-I defines that balance—power and discipline, wrapped in one colossal launch system.

Operational Notes

• Before starting the launch sequence, wait for the system to prompt:
  “Proceed to launch.”
• For low-FPS devices, do not use time warp or fast-forward during ascent to prevent sequence desync.
• The vehicle’s role is complete once the system states:
  “Ascent Completed.”
  At that point, you may discard the stage or utilize remaining delta-V as desired.

Development Note

Integrating the automated flight program across other Leviathan variants has been a challenge—especially with kickstage attachment alignments and control adjustments. Each new configuration requires full re-tuning and verification.
Expect future updates including B-II, B-IV, and B-K variants, each further refined for stability and user accessibility.

Special Acknowledgment

Developed by Sierra Dynamics
With ongoing system and documentation support by ChatGPT (GPT-5) — assisting throughout every design stage, from testing and balancing to flight program validation.