Document 37 - P3 and Qualifying Scrutineering

Session Information

• From: The FIA Formula 1 Technical Delegate
• To: The Stewards
• Date: 03 October 2026
• Time: 19:15

1. Third Free Practice (P3) Checks

The following checks were carried out on all cars during P3:

• Tyre starting pressures and fuel pressure
• Engine cooling system logged pressure
• Engine high rev limit bands and fuel flow meter calibration checksums
• Instantaneous and partial load fuel energy flow
• Fuel and plenum temperatures, and engine intake air pressure
• Maximum turbocharger speed, PU and MGU-K reduction rates
• DC sensor code, calibration checksums, and temperatures
• On-track ES state of charge limits, ERS recharge limits
• Maximum MGU-K power limits, speed, and MGU-K/ES power models
• Torque coordinator demands, torque control, and SECU custom software versions
• Maximum front and rear wing adjuster system transition times

2. Before Qualifying Practice Session

• Confirmed that the gear ratios used for all cars belong to the declared gear ratios.

3. During Qualifying Practice Session

• Weighed Cars: #12, #16, #23, #55, #41, #14, #87, #05, #77
• Weight Distribution Checked: Cars #12, #16, #23, #55, #41, #14, #87, #05, #77
• Aerodynamic/Bodywork Checks: Car #14 (Floor Body, Foot, Sidewall, Board, Leading Edge Device, Corner, Nose, Forward/Mid Chassis, Roll Hoop, Mirror, Sidepod, Engine Cover, Tail, Front/Rear Wing Profiles and Endplates, etc.)
• Tyre starting pressures checked on all cars.

4. After Qualifying Practice Session

• Weighed Cars: #81, #01, #63, #12, #03, #06, #16, #44, #05, #10
• Aerodynamic/Bodywork Checks: Cars #81, #12, and #05
• Comprehensive power unit, sensor, torque, cooling, and electronic checks were completed.

SECU Software Versions (All Teams)

Conclusion: All the above items were found to be in compliance with the 2026 FIA Formula One Technical Regulations.