RC 1/12 pan car wing and spoiler — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/rc-pan-car-wing/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)
Basis: Design rules and figures from the cited sources; example geometry by Xem Studio
Catalog version: 2026-10-20

Sizes: see table below
- 1/12 on-road 'pan' cars run a moulded body with either a wing or a short spoiler, sized by rule. EFRA allows a wing 172 mm wide whose profile fits a 52 x 26 mm box, or a spoiler up to 25 mm high and 35 mm long, with side dams up to 72 mm high.
- As on full-size cars, a spoiler is a body-edge lip while a wing is an airfoil with flow over both faces (CompetitionX).
- Used on: 1/12 electric on-road cars.
- The file is a reference example built by Xem Studio from the numbers above (EFRA 1/12 maximum box.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle.

parameter  value or range  source
Wing width  max 172 mm  EFRA
Wing profile box  52 mm (height) x 26 mm  EFRA
Spoiler  max 25 mm high, 35 mm long  EFRA
Max wing/spoiler height  65 mm  EFRA
Side dam  max 72 mm high  EFRA
Overall width / length  172 mm / 340 mm  EFRA

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- EFRA: EFRA Handbook 2010, Appendix 3: Electric Cars — web — Publisher's page; dimensions are facts — https://www.efra.ws/wp-content/uploads/2010/03/Handb10App3.pdf
- CompetitionX: RC Wings Explained — web — Publisher's page; dimensions are facts — https://www.competitionx.com/?p=489

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/rc-pan-car-wing/index.json
API: https://xemstudio.com/api/geometry?object=rc-pan-car-wing