Frise aileron — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/frise-aileron/  (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 Frise aileron pivots on an offset hinge so the up-going aileron's nose projects below the wing, adding drag on that side to offset adverse yaw; it also forms a slot that improves flow over the lowered aileron at high AoA (FAA PHAK ch.6).
- Coordinated rudder is still needed (FAA). Sadraey notes the hinge line is higher than usual and that Cessna aircraft generally use Frise ailerons (ch.12).
- Used on: Cessna aircraft (generally).
- 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
Hinge  offset, above the usual location  FAA PHAK ch.6; Sadraey ch.12
Usage  Cessna aircraft generally  Sadraey ch.12
Reference build  chord 200, 20% aileron, 20 deg up  illustrative

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- FAA: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25), Ch. 6 Flight Controls — web — Publisher's page; dimensions are facts — https://www.faa.gov/sites/faa.gov/files/08_phak_ch6.pdf
- Universidad de Sevilla course files (Sadraey, Aircraft Design, Ch. 12): Design of Control Surfaces (Aileron) — web — Publisher's page; dimensions are facts — https://aero.us.es/adesign/Slides/Extra/Stability/Design_Control_Surface/Chapter%2012.%20Desig%20of%20Control%20Surfaces%20%28Aileron%29.pdf

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