Inverted gull wing — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/inverted-gull-wing/  (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
- An inverted gull wing dips down from the fuselage then rises outboard. On the F4U Corsair it gave ground clearance for a 13 ft propeller and reduced drag at the wing-fuselage joint (Smithsonian NASM).
- Wind-tunnel data favoured a wing meeting the fuselage at right angles; the bent wing let a low wing do that while allowing an even shorter landing gear than a low wing, avoiding a long, heavy gear (US Naval Institute).
- Used on: Vought F4U Corsair.
- 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
Corsair propeller diameter  13 ft 1 in (NASM); 13 ft 3 in (USNI)  Smithsonian NASM; USNI
Engine  R-2800, 1,850 hp  Smithsonian NASM
Wing-fuselage junction  right angle for low interference drag  USNI
Reference build angles  illustrative (no published angle fetched)  illustrative

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Smithsonian National Air and Space Museum: Vought F4U-1D Corsair — web — Publisher's page; dimensions are facts — https://si.edu/object/nasm_A19610124000
- US Naval Institute, Naval History Magazine: Designing the Bent-Wing Bird (Feb 1995) — web — Publisher's page; dimensions are facts — https://www.usni.org/magazines/naval-history-magazine/1995/february/designing-bent-wing-bird

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