Open-source ultralight eVTOL aircraft. Three single-occupant vehicles sharing a common cockpit pod, motor module, and 4130 pilot cage:
- OCFlyer-Lite — tandem-wing tilt-body, sit-supine, amphibious. Long-range touring + sport.
- OCRacer — pure VTOL multirotor, three tiers (Hobby / Prosumer / Mod). Closed-course racing + short-range hopping.
- OCRotator — research / technology demonstrator. Tests advanced architectures before they hit production.
Built parametrically in Blender via the BlenderForge plugin with a 5-tool aerospace extension included in this repo.
Design scaffolded. Awaiting first prototype build. See docs/specs/00-INDEX.md for the family overview.
docs/
specs/ design specs (per-vehicle + Blender modeling design)
plans/ step-by-step implementation plans
knowledge/ reference notes (BlenderForge authoring gotchas, etc.)
blender/
tools/ 5-tool aerospace extension for BlenderForge + modeling pipeline
models/ OCFlyer-Family.blend — single .blend file housing the whole family
LICENSE CERN-OHL-S v2 (strongly reciprocal hardware license)
- Family overview →
docs/specs/00-INDEX.md - OCFlyer-Lite Bare (Phase 1 modeling target) →
docs/specs/OCFlyer-Lite.md - OCRacer (multirotor) →
docs/specs/OCRacer.md - OCRotator (research) →
docs/specs/OCRotator.md - Blender modeling design →
docs/specs/blender-design.md - Blender implementation plan →
docs/plans/blender-implementation.md - BlenderForge authoring gotchas →
docs/knowledge/blenderforge-authoring-gotchas.md - Aerospace toolkit (5 BlenderForge tools) →
blender/tools/
Hardware designs + documentation: CERN Open Hardware Licence v2 — Strongly Reciprocal (CERN-OHL-S-2.0). You are free to study, modify, build, and redistribute, with strong reciprocity (improvements flow back under the same license).
Python tool code in blender/tools/ is dual-licensed CERN-OHL-S-2.0 OR MIT at your option, so it can be vendored into MIT-licensed Blender plugins.
Make manned ultralight eVTOL flight available to the maker-space level builder. Targets FAR Part 103 compliance (no pilot certification required) for the production variants. Designed in the open, built in the open, flown in the open.