{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "rc-touring-car-wing",
 "name": "RC on-road touring car wing",
 "kind": "standard",
 "category": "Car design",
 "group": "Car aero",
 "year": null,
 "question": "Why are RC touring car wings shaped the way they are?",
 "tags": [
  "vehicle design",
  "car aero",
  "rc design",
  "aerodynamics"
 ],
 "aliases": [
  "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"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/rc-touring-car-wing/",
 "sheet_txt": "https://xemstudio.com/objects/rc-touring-car-wing/sheet.txt",
 "sheet": {
  "basis": "Design rules and figures from the cited sources; example geometry by Xem Studio",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "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."
  ],
  "table": {
   "columns": [
    "parameter",
    "value or range",
    "source"
   ],
   "rows": [
    [
     "ISTC wing width (incl. endplates)",
     "125-190 mm",
     "AARCMCC"
    ],
    [
     "ISTC wing chord (incl. flaps)",
     "20-40 mm",
     "AARCMCC"
    ],
    [
     "ISTC endplate / side dam",
     "40 x 20 mm",
     "AARCMCC"
    ],
    [
     "EFRA touring wing",
     "max 190 mm wide; profile in 25 x 40 mm rectangle",
     "EFRA"
    ],
    [
     "Wing height rule",
     "below roofline",
     "AARCMCC"
    ],
    [
     "Aftermarket wing height",
     "20 mm (legal limit)",
     "LiveRC"
    ],
    [
     "1/10 track (GT) wing",
     "250 mm wide, 55 mm chord",
     "AARCMCC"
    ]
   ]
  }
 },
 "sheet_text": "RC on-road touring car wing — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/rc-touring-car-wing/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)\nBasis: Design rules and figures from the cited sources; example geometry by Xem Studio\nCatalog version: 2026-10-20\n\nSizes: see table below\n- 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.\n- 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).\n- The wing adds rear traction and high-speed stability; too much makes the car safe but reluctant to rotate (CompetitionX).\n- Used on: 1/10 ISTC electric touring cars.\n- 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.\n\nparameter  value or range  source\nISTC wing width (incl. endplates)  125-190 mm  AARCMCC\nISTC wing chord (incl. flaps)  20-40 mm  AARCMCC\nISTC endplate / side dam  40 x 20 mm  AARCMCC\nEFRA touring wing  max 190 mm wide; profile in 25 x 40 mm rectangle  EFRA\nWing height rule  below roofline  AARCMCC\nAftermarket wing height  20 mm (legal limit)  LiveRC\n1/10 track (GT) wing  250 mm wide, 55 mm chord  AARCMCC\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- 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\n- 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\n- LiveRC: Leadfinger Racing MaxSpec-20 Vortex TC wing — web — Publisher's page; dimensions are facts — https://www.liverc.com/news/new-leadfinger-racing-maxspec-20-vortex-tc-wing/\n- CompetitionX: RC Wings Explained — web — Publisher's page; dimensions are facts — https://www.competitionx.com/?p=489\n\nFree files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/rc-touring-car-wing/index.json\nAPI: https://xemstudio.com/api/geometry?object=rc-touring-car-wing\n",
 "sources": [
  {
   "publisher": "AARCMCC",
   "title": "Section 3: Electric On Road, Technical Rules (Oct 2006)",
   "url": "https://www.rctech.net/forum/attachments/australian-racing/180184d1162811203-aarcmcc-online-tech-road-oct-06.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "EFRA",
   "title": "EFRA Handbook 2010, Appendix 3: Electric Cars",
   "url": "https://www.efra.ws/wp-content/uploads/2010/03/Handb10App3.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "LiveRC",
   "title": "Leadfinger Racing MaxSpec-20 Vortex TC wing",
   "url": "https://www.liverc.com/news/new-leadfinger-racing-maxspec-20-vortex-tc-wing/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "CompetitionX",
   "title": "RC Wings Explained",
   "url": "https://www.competitionx.com/?p=489",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "rear-wing-single-element",
  "rear-wing-dual-element",
  "swan-neck-wing-mount",
  "gurney-flap-wickerbill",
  "wing-endplates",
  "front-splitter"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "Why are side dams so small?",
   "a": "Rules limit them, e.g. 40 x 20 mm in AARCMCC ISTC rules."
  }
 ],
 "files_license": {
  "name": "Xem Studio Design License",
  "holder": "Xem Studio",
  "url": "https://xemstudio.com/license/",
  "note": "Xem Studio's own design: free to use, print, modify and sell things made from it; not to be republished or redistributed as files."
 },
 "offers": [
  {
   "file": "rc-touring-car-wing-rear-wing",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "Xem Studio Design License",
   "step": "https://xemstudio.com/files/hardware/rc-touring-car-wing/rc-touring-car-wing-rear-wing.step",
   "stl": "https://xemstudio.com/files/hardware/rc-touring-car-wing/rc-touring-car-wing-rear-wing.stl",
   "note": "single rear wing: span 190 × chord 40 mm at 6°, endplates 20 mm, inverted NACA 4412 section (mounts from below)"
  }
 ],
 "markdown": "https://xemstudio.com/objects/rc-touring-car-wing/index.md"
}