Elevon — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/elevon/ (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 - 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. parameter value or range source Concorde 6 elevons; no flaps or slats Heritage Concorde Reference build chord 200, 20% elevon, 15 deg illustrative Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - Heritage Concorde: The Wing — web — Publisher's page; dimensions are facts — https://www.heritageconcorde.com/the-wing - 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 Free files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/elevon/index.json API: https://xemstudio.com/api/geometry?object=elevon