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RC on-road touring car wing

Why are RC touring car wings shaped the way they are? · Standard part · basis: Design rules and figures from the cited sources; example geometry by Xem Studio

Also called: rc touring car wing, 1/10 touring car wing, tc wing, rc body wing, rc car rear wing, touring car side dams, rc on road wing, ROAR touring wing rules, 190mm body wing, rc wing rules

Exact dimensions. True size, with no printing tolerance added.

sizes
7 in table

Notes

  • 1/10 touring-car wings are rule-limited airfoil plates on the body's tail. AARCMCC ISTC rules cap width at 125-190 mm and chord at 20-40 mm including flaps, require the wing to stay below the roofline and allow 40 x 20 mm side dams; EFRA caps width at 190 mm and fits the profile in a 25 x 40 mm box.
  • Because the box is fixed, designers reshape mounts to use the full allowance: one aftermarket wing drops its mounting pocket 6 mm so the full 20 mm height stays under the roofline (LiveRC).
  • The wing adds rear traction and high-speed stability; too much makes the car safe but reluctant to rotate (CompetitionX).
  • Used on: 1/10 ISTC electric touring cars.
  • The file is a reference example built by Xem Studio from the numbers above (Max EFRA/AARCMCC touring box; aoa illustrative.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle.

RC on-road touring car wing size chart

parametervalue or rangesource
ISTC wing width (incl. endplates)125-190 mmAARCMCC
ISTC wing chord (incl. flaps)20-40 mmAARCMCC
ISTC endplate / side dam40 x 20 mmAARCMCC
EFRA touring wingmax 190 mm wide; profile in 25 x 40 mm rectangleEFRA
Wing height rulebelow rooflineAARCMCC
Aftermarket wing height20 mm (legal limit)LiveRC
1/10 track (GT) wing250 mm wide, 55 mm chordAARCMCC

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

AARCMCCSection 3: Electric On Road, Technical Rules (Oct 2006)webPublisher's page; dimensions are facts
EFRAEFRA Handbook 2010, Appendix 3: Electric CarswebPublisher's page; dimensions are facts
LiveRCLeadfinger Racing MaxSpec-20 Vortex TC wingwebPublisher's page; dimensions are facts
CompetitionXRC Wings ExplainedwebPublisher's page; dimensions are facts

Free files

★ Free files 1 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json

rc-touring-car-wing-rear-wingsingle rear wing: span 190 × chord 40 mm at 6°, endplates 20 mm, inverted NACA 4412 section (mounts from below)STEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=rc-touring-car-wing

RC on-road touring car wing, isometric render of a generated part
Render of rc-touring-car-wing-rear-wing from the free STEP; not to scale.

Fits with

Single-element rear wing (race car), isometric render of a generated part
Single-element rear wing (race car)7 sizes★ 1 file
Dual-element (two-element) rear wing, isometric render of a generated part
Dual-element (two-element) rear wing9 sizes★ 1 file
Swan-neck rear wing mount, isometric render of a generated part
Swan-neck rear wing mount5 sizes★ 1 file
Gurney flap / wickerbill, isometric render of a generated part
Gurney flap / wickerbill7 sizes★ 1 file
Wing endplates / side dams, isometric render of a generated part
Wing endplates / side dams6 sizes★ 1 file
Front splitter, isometric render of a generated part
Front splitter8 sizes★ 1 file

Questions

Why are side dams so small?

Rules limit them, e.g. 40 x 20 mm in AARCMCC ISTC rules.