Article C3.18.12
Rear Wing Mainplane Trailing Edge
Technical Regulations
Article C3.18.12
Rear Wing Mainplane Trailing Edge
Chapter: C3
In Simple Terms
The rear wing's front blade can only bend a maximum of 3mm when a 200N force is applied to it during testing. This ensures teams don't create flexible wings that gain unfair aerodynamic advantages by flexing under race conditions. The connecting adapter piece must be compact and precisely sized.
- Front rear wing element limited to 3mm maximum deflection under 200N load
- Load applied at multiple points across the wing (Y=0, ±150, ±450mm) to test uniformly
- Adapter connecting the wing must be no wider than 50mm and no longer than 10mm
- Strict specifications prevent teams from gaining advantage through wing flexibility
Official FIA Text
Forward-most aerofoil element of Rear Wing Profiles may deflect no more than 3mm along load application line when 200N load applied normal to lower surface at Y=0, ±150, or ±450. Adaptor must be no more than 50mm wide, extend no more than 10mm forward of trailing edge, with 8mm female thread.
rear wing deflectionaerofoil elementload testwing flexibilitytechnical regulations
2026 Season Regulations