{
 "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": "elevon",
 "name": "Elevon",
 "kind": "standard",
 "category": "Aircraft design",
 "group": "Control surfaces",
 "year": null,
 "question": "What are elevons?",
 "tags": [
  "vehicle design",
  "control surfaces",
  "rc design",
  "aerodynamics"
 ],
 "aliases": [
  "elevon",
  "elevons",
  "elevon mixing",
  "flying wing elevons",
  "delta wing elevons",
  "elevon throw",
  "elevon rc",
  "elevon vs aileron",
  "v-tail elevon mix"
 ],
 "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/elevon/",
 "sheet_txt": "https://xemstudio.com/objects/elevon/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": [
   "Elevons combine elevator and aileron: both move together for pitch and opposite for roll, which is how tailless wings and deltas are controlled.",
   "Concorde used only six elevons, replacing elevators and ailerons, with no flaps or slats, where subsonic wings may have more than 50 movable devices (Heritage Concorde).",
   "McCombs notes free-flight scale models can trim glide turns with elevons (Model Aviation).",
   "Used on: Concorde.",
   "The file is a reference example built by Xem Studio from the numbers above. Sizes the sources do not fix are illustrative; scale the example to your own vehicle."
  ],
  "table": {
   "columns": [
    "parameter",
    "value or range",
    "source"
   ],
   "rows": [
    [
     "Concorde",
     "6 elevons; no flaps or slats",
     "Heritage Concorde"
    ],
    [
     "Reference build",
     "chord 200, 20% elevon, 15 deg",
     "illustrative"
    ]
   ]
  }
 },
 "sheet_text": "Elevon — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/elevon/  (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- Elevons combine elevator and aileron: both move together for pitch and opposite for roll, which is how tailless wings and deltas are controlled.\n- Concorde used only six elevons, replacing elevators and ailerons, with no flaps or slats, where subsonic wings may have more than 50 movable devices (Heritage Concorde).\n- McCombs notes free-flight scale models can trim glide turns with elevons (Model Aviation).\n- Used on: Concorde.\n- The file is a reference example built by Xem Studio from the numbers above. Sizes the sources do not fix are illustrative; scale the example to your own vehicle.\n\nparameter  value or range  source\nConcorde  6 elevons; no flaps or slats  Heritage Concorde\nReference build  chord 200, 20% elevon, 15 deg  illustrative\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Heritage Concorde: The Wing — web — Publisher's page; dimensions are facts — https://www.heritageconcorde.com/the-wing\n- Model Aviation (AMA), W.F. McCombs: Wing and Tail Dihedral for Models (Dec 1994) — web — Publisher's page; dimensions are facts — https://library.modelaviation.com/article/wing-and-tail-dihedral-models\n\nFree files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/elevon/index.json\nAPI: https://xemstudio.com/api/geometry?object=elevon\n",
 "sources": [
  {
   "publisher": "Heritage Concorde",
   "title": "The Wing",
   "url": "https://www.heritageconcorde.com/the-wing",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Model Aviation (AMA), W.F. McCombs",
   "title": "Wing and Tail Dihedral for Models (Dec 1994)",
   "url": "https://library.modelaviation.com/article/wing-and-tail-dihedral-models",
   "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": [
  "aileron",
  "frise-aileron",
  "differential-ailerons",
  "flaperon",
  "spoiler",
  "trim-tab"
 ],
 "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 do flying wings use elevons?",
   "a": "With no tail, the wing's trailing-edge surfaces must do both pitch and roll (Heritage Concorde)."
  }
 ],
 "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": "elevon-wing-segment",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "Xem Studio Design License",
   "step": "https://xemstudio.com/files/hardware/elevon/elevon-wing-segment.step",
   "stl": "https://xemstudio.com/files/hardware/elevon/elevon-wing-segment.stl",
   "note": "elevon: wing segment 200 mm chord × 300 mm, 20 % chord surface deflected 15°"
  }
 ],
 "markdown": "https://xemstudio.com/objects/elevon/index.md"
}