Rear wing placement (height and fore-aft) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/rear-wing-placement/  (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
- HPA's starting point is to put the forward third of the wing over the boot and the rear two-thirds behind it, with the leading edge level with the roofline seen from the front.
- Higher and further rearward gives more rear aero balance; lower positions interact with the body and floor but too low puts the wing in the cabin wake and performance drops substantially (HPA).
- RC classes constrain this by rule: touring-car wings must stay below the roofline (AARCMCC).
- The file is a reference example built by Xem Studio from the numbers above (Reference wing as in single-element entry.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle.

parameter  value or range  source
Fore-aft starting point  front 1/3 over boot, rear 2/3 behind  HPA rear wing
Height starting point  leading edge level with roofline (front view)  HPA rear wing
RC touring car wing height  must be lower than the roof line  AARCMCC
RC touring car rear overhang  max 10 mm beyond body incl. bumper  AARCMCC

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- High Performance Academy: Aerodynamic performance devices for club level cars: rear wing theory — web — Publisher's page; dimensions are facts — https://www.hpacademy.com/courses/aerodynamics-fundamentals/aerodynamic-performance-devices-for-club-level-cars-rear-wing-theory
- AARCMCC: Section 3: Electric On Road, Technical Rules (Oct 2006) — web — Publisher's page; dimensions are facts — https://www.rctech.net/forum/attachments/australian-racing/180184d1162811203-aarcmcc-online-tech-road-oct-06.pdf

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