Article 11.5
Final Plank Reference Volume
Technical Regulations
Article 11.5
Final Plank Reference Volume
Chapter: APPENDIX C2: REGULATION VOLUMES
In Simple Terms
This rule establishes the official measurement volume of the car's plank (the wooden board underneath the chassis that protects it). The 'RV-PLANK' is the precisely defined space used by FIA officials to check if a car's plank meets size and wear regulations throughout the season.
- RV-PLANK is the official reference volume for the plank component
- The plank is measured against this defined volume to ensure compliance
- This volume was fully detailed in the previous section (11.4)
- Used by stewards to verify plank legality during technical inspections
Official FIA Text
The fully defined volume in §11.4 is 'RV-PLANK'.
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2026 Season Regulations