Doc 68 - Qualifying Scrutineering

This document is the Technical Delegate's Report for the 2026 Miami Grand Prix, issued by Jo Bauer, the FIA Formula 1 Technical Delegate, to The Stewards on May 2, 2026, at 20:30.

Before the Qualifying Practice Session:

• Fuel Samples: Taken from car numbers 30 and 87.
• Engine Oil Samples: Taken from car numbers 30 and 87.

During the Qualifying Practice Session:

• Weighing: Car numbers 81, 01, 63, 12, 06, 44, 23, 41, 30, 18, 31, 27, and 77 were weighed.
• Weight Distribution: Checked on car numbers 81, 01, 63, 12, 06, 44, 23, 41, 30, 18, 31, 27, and 77.
• Aerodynamic Components/Bodywork (Car 18):
  • Floor Body (Article C3.5.1)
  • Floor Foot (Article C3.5.2)
  • Floor Sidewall (Article C3.5.3)
  • Floor Board (Article C3.5.5)
  • Floor Corner (Article C3.5.10)
  • Nose (Article C3.7.1)
  • Forward Chassis (Article C3.7.2)
  • Mid Chassis (Article C3.7.3)
  • Roll Hoop (Article C3.7.4)
  • Mirror (Article C3.7.5)
  • Sidepod (Article C3.8.1)
  • Engine Cover (Article C3.8.2)
  • Front Wing Profiles (Article C3.10.1)
  • Front Wing Endplate body (Article C3.10.2)
  • Front Wing Outboard Footplate (Article C3.10.3)
  • Front Wing Inboard Footplate (Article C3.10.4)
  • Front Wing Endplate Diveplane (Article C3.10.5)
  • Rear Wing Profiles (Article C3.11.1)
  • Rear Wing Endplate Body (Article C3.11.2)
  • Rear Wing Brace (Article C3.11.3)
  • Rear Wing Pylon (Article C3.11.4)
• Tyre Starting Pressures: Checked on all cars.

After the Qualifying Practice Session:

• Weighing: Car numbers 81, 01, 63, 12, 03, 06, 16, 44, 10, and 43 were weighed.
• Aerodynamic Components/Bodywork (Cars 81 and 44): The same extensive list of components as for Car 18 was checked (Articles C3.5.1 to C3.11.4).
• Engine Cooling System: Logged pressure checked on all cars.
• Engine High Rev Limit Bands: Checked on all cars.
• Fuel Flow Meter: Calibration checksums checked on all cars.
• Instantaneous Fuel Energy Flow: Checked on all cars.
• Fuel Temperature: Checked on all cars.
• Plenum Temperature: Checked on all cars.
• Engine Intake Air Pressure: Checked on all cars.
• Maximum Turbocharger Speed: Checked on all cars.
• DC Sensor Temperatures: Checked on all cars.
• On-track ES State of Charge: Checked on all cars.
• ERS Recharge Limits: Checked on all cars.
• Maximum MGU-K Speed: Checked on all cars.
• Session Type: Confirmed for all cars.
• Chassis FIA Checksum: Checked on all cars.
• Torque Sensor Software Version: Checks carried out on all cars.
• Torque Sensor Calibration: Checks carried out on all cars.
• Rear Brakes Pressure Control: Checked on all cars.
• Steering Wheel: Checked on all cars.
• Custom Software Version: Checks carried out on all cars.
• SECU Software Version: Checks carried out on all cars.
• Tyres Cold Pressure: Checked on car numbers 06 and 10.
• Tyres Used: Checked for all drivers during the sessions today.
• Fuel Samples: Taken from car numbers 01 and 63.
• Fuel Analysis: All fuel samples checked for density and analyzed by gas chromatography. Results consistent with approved reference fuels. Further density checks were within permitted limits.
• Engine Oil Sample: Taken from car number 01.
• Engine Oil Analysis: Samples analyzed by FTIR spectroscopy and viscometry. Results consistent with approved reference engine oil samples.

SECU Software Versions Used by Teams During Qualifying:

All checked items were found to be in conformity with the 2026 FIA Formula One Technical Regulations.