# ASTERION Development Roadmap

## Version 0.1 — Definition

- Project charter
- Requirements baseline
- Architecture
- Coordinate system and station plan
- NX expression set
- ANSYS analysis matrix
- Risk and verification templates

**Exit criterion:** all Version 0.1 documents reviewed and committed.

## Version 0.2 — NX master skeleton

- Create top-level skeleton part
- Add central axis and vehicle stations
- Add ring, solar, radiator, propulsion, docking, and Skimmer envelopes
- Add named coordinate systems
- Add expressions and inter-part links
- Generate first general-arrangement drawing

**Exit criterion:** stable master model drives all major envelopes without broken references.

## Version 0.3 — Primary structure

- Central truss
- Ring sectors and spokes
- Bearing supports
- Solar-array masts
- Radiator booms
- Propulsion interface frame

**Exit criterion:** primary load path complete and ready for reduced-order structural analysis.

## Version 0.4 — Detailed assemblies

- Propulsion pods
- Solar wings
- Radiators
- Docking nodes
- Command/service modules
- Ring interiors
- Skimmer aeroshuttle

**Exit criterion:** complete assembly with controlled clearances and mass properties.

## Version 0.5 — Structural CAE

- Static structure
- Modal
- Buckling
- Rotating ring
- Docking interface

## Version 0.6 — Thermal and CFD

- Radiator thermal model
- Electronics cold plate
- Cabin ventilation
- Skimmer external aerodynamics

## Version 0.7 — CAM and prototype

- Thruster-gimbal bracket
- Bearing housing
- Skimmer rib
- Lightweight bulkhead
- Additive demonstrator

## Version 0.8 — Optimisation

- Design of experiments
- Mass reduction
- Frequency improvement
- Aerodynamic refinement

## Version 0.9 — Validation and presentation

- Mesh convergence
- Hand-calculation comparison
- Design review
- Animations
- Browser viewer

## Version 1.0 — Public release

- Final report
- Neutral CAD release
- Simulation evidence
- CAM documentation
- Prototype guide
- GitHub Pages website


## Version 0.6 completion

Thermal and CFD preparation, reduced-order correlation data and solver execution guides are complete.
