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Differential ailerons

Name: Differential ailerons dimension sheet
Creator: Xem Studio
License: https://creativecommons.org/licenses/by/4.0/

What are differential ailerons? · Standard part · basis: Design rules and figures from the cited sources; example geometry by Xem Studio

Also called: aileron differential, aileron differential percentage, adverse yaw fix rc, differential aileron throw, more up than down aileron, aileron differential glider, transmitter aileron differential

Exact dimensions. True size, with no printing tolerance added.

sizes: 4 in table

Notes

Differential ailerons deflect the up-going aileron farther than the down-going one, adding drag on the descending wing; adverse yaw is reduced but not eliminated (FAA PHAK ch.6).
Sadraey notes Piper aircraft generally use differential ailerons; a Cessna 182's 20 up / 14 down and a 777's 30 up / 10 down show the asymmetry (Sadraey Table 12.1).
Used on: Cessna 182, Boeing 777-200, Piper 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.

Differential ailerons size chart

parameter	value or range	source
Cessna 182 up/down	20 / 14 deg	Sadraey Table 12.1
Boeing 777-200 up/down	30 / 10 deg	Sadraey Table 12.1
Air Tractor AT-802 up/down	17 / 13 deg	Sadraey Table 12.1
Reference build	chord 200, 20% aileron, 20 deg up	Cessna 182 ratio

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

FAA	Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25), Ch. 6 Flight Controls	web	Publisher's page; dimensions are facts
Universidad de Sevilla course files (Sadraey, Aircraft Design, Ch. 12)	Design of Control Surfaces (Aileron)	web	Publisher's page; dimensions are facts

Free files

★ Free files 1 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json

differential-ailerons-wing-segment

aileron: wing segment 200 mm chord × 300 mm, 20 % chord surface deflected 20°

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Plain text: sheet.txt · JSON: /api/geometry?object=differential-ailerons