Article C3.2.7
Pressure Tappings
Technical Regulations
Article C3.2.7
Pressure Tappings
Chapter: C3
In Simple Terms
F1 cars are allowed to have tiny holes (maximum 2mm diameter) on their surface to measure pressure from internal sensors. These holes must be perfectly flush with the car's body and can only connect to pressure sensors or be completely sealed off. This prevents teams from using them for aerodynamic advantages.
- Maximum hole diameter is 2mm for pressure measurement points
- Holes must be flush with the car's surface to avoid aerodynamic benefits
- Holes can only connect to pressure sensors or must be completely blanked/sealed
- These tappings allow teams to monitor and optimize car performance through pressure data
Official FIA Text
Pressure measuring apertures permitted on car with internal diameter no more than 2mm, flush with underlying geometry, only connected to pressure sensors or completely blanked.
pressure tappingspressure sensorsmeasurement aperturescar surfaceaerodynamics
2026 Season Regulations