Doc 44 - P3 and Qualifying Scrutineering

Technical/Scrutineering

Technical Delegate's Report

Document: 44 Date: 13 June 2026

This report summarizes the technical checks performed by the FIA Technical Delegate during the 2026 Barcelona-Catalunya Grand Prix.

Before the Third Free Practice (P3)

  • CAD Comparison: The spare LHS front corner of car numbers 41 and 30 was digitally scanned and compared against team-declared CAD drawings and the 2026 Technical Regulations.

During P3

  • General Systems: Tyre starting pressures, fuel pressure, engine cooling system pressure, and engine high-rev limit bands were checked on all cars.
  • Fuel & Power Unit: Fuel flow meter calibration, instantaneous and partial load fuel energy flow, fuel temperature, plenum temperature, and engine intake air pressure were verified.
  • Energy & Software: Maximum turbocharger speed, PU and MGU-K reduction rates, DC sensor temperatures, ES state of charge limits, ERS recharge limits, and SECU custom software versions were checked on all cars.

Before & During Qualifying

  • Gear Ratios: Confirmed for all cars.
  • Brake Discs: Thickness checked for car numbers 81, 01, 12, 03, 06, 16, 44, 23, 55, 41, 30, 18, 14, 31, 87, 27, 05, 10, 43, 11, and 77.
  • Weights & Aero: Specific cars were weighed and checked for weight distribution. Aerodynamic components (Floor, Nose, Chassis, Wings, etc.) were verified on specific cars (e.g., car 23, 81, 03, 27).

SECU Software Versions Used

TeamFIA Standard ECU system version
McLaren Mastercard F1 TeamSR1833 + B12A
Mercedes-AMG PETRONAS Formula One TeamSR1833 + B129
Oracle Red Bull RacingSR1833 + BE5A
Scuderia Ferrari HPSR1833 + B12A
Atlassian Williams RacingSR1833 + B129
VISA Cash App Racing Bulls Formula One TeamSR1833 + B129
Aston Martin Aramco Formula One TeamSR1833 + B129
TGR Haas F1 TeamSR1833 + B12A
Audi Revolut F1 TeamSR1833 + B129
BWT Alpine Formula One TeamSR1833 + B129
Cadillac Formula 1 TeamSR1833 + B12A

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