Article 11.3

Plank Extrusion

Technical Regulations

Article 11.3

FIA Source

Plank Extrusion

Chapter: APPENDIX C2: REGULATION VOLUMES

In Simple Terms

The plank (a wooden board underneath the car) must extend downward from its defined surface all the way to a depth of 10 centimeters below. This ensures the plank covers the required area and maintains consistent thickness for wear measurement purposes.

  • The plank surface defined in Article 11.2 must be extended vertically downward along the Z-axis
  • The plank must reach a minimum depth of Z=-10 (10cm below the reference surface)
  • This extrusion requirement ensures uniform plank thickness across the entire defined area
  • Plank depth is critical for FIA wear measurements and technical compliance checks
Official FIA Text

Once the surface in §11.2 is fully defined it must be extruded along Z to Z=-10.

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