← Research and engineeringGeneral arrangements, sections, photovoltaic panels and radiators, compute enclosures, fasteners, hinges, circuits, and interface registers. Dimensioned elements, supplier envelopes, and unresolved engineering items are identified separately.
Engineering archive / OC-250 / Revision D
OC-250 Rev D – Detailed 2D Preliminary Engineering Definition
A set of 51 A3 drawing sheets describing a planar orbital architecture, its assemblies, interfaces, and selected components. The design comprises four independent vehicles, each with 62.5 kW of IT power.
Preliminary study, not flight-qualified. Original document preserved in full.
Document scope
From general arrangement to interfaces.
- How does the platform’s form translate into physical assemblies and interfaces?
- Which parts have defined dimensions, and which allocations still need confirmation?
Reading this revision
Drawing maturity and qualification.
Revision D extends the Revision C form study into two-dimensional definitions of assemblies and components. It distinguishes proposed geometry, derived results, and envelopes reserved for equipment that has yet to be selected. The Revision E 3D section published on this site then shows a representative mounting joint; it does not depict a complete, validated vehicle.
A preliminary engineering definition. The drawings and geometric checks do not establish qualification, supplier validation, or approval for manufacture. Full deployment, dynamics, thermal survival, and flight mass remain unresolved.