Single seater road legal one of (rolling chassis) Ended

one‑off, road‑legal single‑seater sports‑car. For Stage 1 of the programme we need a complete rolling‑chassis engineering package (space‑frame, suspension & steering) that we can fabricate locally.

1  Project outline

Architecture: aluminium tubular space‑frame with bolt‑on front/rear crash structures and roll‑over hoop.
Inspirational benchmark:BAC Mono MY‑25 – wheel‑base ≈ 2 565 mm, overall width ≈ 1 836 mm .
Adaptations required: +50 – 100 mm extra cockpit width and slightly longer wheel‑base for larger driver ergonomics; suspension pick‑ups and geometry to remain broadly comparable to the Mono’s twin‑wishbone push‑rod layout.
Regulatory target: UNECE low‑volume road approval (mirrors UK IVA/FMVSS concepts) recognised by the Lebanese Ministry of Public Works & Transport.
Scope limitation:external body‑panels, power‑train and interior are out of scope for this stage; we only need the rolling chassis and suspension.

2  Acceptable starting points

Modify an existing plan‑built single‑seater chassis that already carries basic safety factors (e.g. T89 Designs “Single‑Seater Locost”) – provided you can enlarge and re‑validate it; or
*Clean‑sheet design** to the brief above.

If an existing design can accelerate the programme, please identify licence costs and any IP constraints.

3  Deliverables requested

| Item | Minimum content |
| ------------------------ | ------------------------------------------------------------------------------------- |
| **3‑D CAD model** | STEP/Parasolid of chassis, suspension, uprights, steering column & rack |
| **2‑D fabrication pack** | Tube cut‑list (DXF), weld‑fixture datums, bend radii, full GD\&T |
| **FEA dossier** | Static + crash energy paths, torsional rigidity ≥ 3 kN·m/deg, 2 × design‑limit FS |
| **Suspension report** | Kinematic plots (bump‑steer, roll‑centre, camber gain), spring/damper suggestions |
| **Compliance matrix** | Mapping to UNECE R14, R16, R29/FIA ROPS, R13‑H braking hard‑points, etc. |
| **Bill of materials** | Material grades (preferably 6082‑T6 or 25CrMo4 if steel is essential), fastener specs |
| **Support** | 10 h remote Q\&A during fabrication + option for additional engineering days |

4  Local fabrication constraints

* TIG‑qualified welders are available; we can import **pre‑notched tube kits** if you can arrange laser‑cutting (VR3 style).
* Certified aluminium supply is possible, but please state if high‑strength steel is unavoidable for crash performance.
* All drawings must be metric.

5  Commercial information needed

1. **Fixed‑price quotation** (design + one revision loop).
2. **Indicative timeline** to preliminary design review (PDR) and final design freeze.
3. **List of assumptions & exclusions** (e.g., physical testing attendance).
4. **IP terms** – we require full build rights for this single vehicle. read less