High wing placement — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/high-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
- A high wing adds stable dihedral effect through wing-fuselage interference, so high-wing aircraft need less geometric dihedral than low-wing ones (Kitplanes, Wainfan; Wainfan rejects the pendulum explanation, while Leishman describes pendular stability with the c.g. below the lift).
- McCombs recommends about 5-7 deg wing dihedral for rudder-only high-wing RC models and about 0-2 deg for high-wing aileron models (Model Aviation).
- Extreme cases such as swept high wings may need anhedral (Kitplanes); the C-5 is a high-wing aircraft with anhedral (ERAU).
- Used on: C-5 Galaxy.
- 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
RC rudder-only, high wing dihedral  about 5-7 deg  McCombs 1994
RC with ailerons, high wing  about 0-2 deg  McCombs 1994
FF scale, high wing EVD  0-3 deg  McCombs 1994
Outdoor FF scale high wing  about 1 deg  McCombs 1992
Reference build  1000 x 200 mm, 6 deg dihedral  McCombs

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Kitplanes (B. Wainfan): Wind Tunnel: Roll's role in lateral stability (2008) — web — Publisher's page; dimensions are facts — https://www.kitplanes.com/wind-tunnel-135/
- 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
- Model Aviation (AMA), W.F. McCombs: Vertical Tail Size for Models (Apr 1992) — web — Publisher's page; dimensions are facts — https://library.modelaviation.com/article/vertical-tail-size-models-1
- Embry-Riddle (Leishman), Introduction to Aerospace Flight Vehicles: Wing Shapes and Nomenclature — web — Publisher's page; dimensions are facts — https://eaglepubs.erau.edu/introductiontoaerospaceflightvehicles/chapter/wing-shapes-and-nomenclature/

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