Technical Delegate's Report - 2025 Abu Dhabi Grand Prix

Date: 07 December 2025 Time: 20:15

This report details the technical checks performed by the FIA Formula One Technical Delegate before and after the 2025 Abu Dhabi Grand Prix.

Before the Race:

Aerodynamic Deflection Tests:

• Rear Wing Main Plane Tip Deflection: Car numbers 81 (Oscar Piastri - McLaren Mercedes), 04 (Lando Norris - McLaren Mercedes), and 01 (Max Verstappen - Red Bull Racing Honda RBPT) were tested.
• Front Wing Deflection (Symmetric & Asymmetric): Car numbers 81, 04, and 01 were tested.
• Front Wing Flap Deflection: Car numbers 81, 04, and 01 were tested.
• Front Floor Deflection: Car numbers 14 (Fernando Alonso - Aston Martin Aramco Mercedes), 31 (Esteban Ocon - Haas Ferrari), and 05 (Gabriel Bortoleto - Kick Sauber Ferrari) were tested.

Gurney Checks:

• Front Wing Gurney Size: Checked on car numbers 81, 04, 16 (Charles Leclerc - Ferrari), 44 (Lewis Hamilton - Ferrari), 31, 87 (Oliver Bearman - Haas Ferrari), 23 (Alexander Albon - Williams Mercedes), 55 (Carlos Sainz - Williams Mercedes), 27 (Nico Hülkenberg - Kick Sauber Ferrari), and 05.
• Rear Wing Gurney Size: Checked on car numbers 81, 04, 16, 44, 01, 22 (Yuki Tsunoda - Red Bull Racing Honda RBPT), 63 (George Russell - Mercedes), 12 (Kimi Antonelli - Mercedes), 18 (Lance Stroll - Aston Martin Aramco Mercedes), 14, 10 (Pierre Gasly - Alpine Renault), 43 (Franco Colapinto - Alpine Renault), 31, 87, 06 (Isack Hadjar - Racing Bulls Honda RBPT), 30 (Liam Lawson - Racing Bulls Honda RBPT), 27, and 05.

Other Pre-Race Checks:

• Car Set-up: Car numbers 81, 04, and 01 confirmed to match team submissions prior to Qualifying.
• ICE Coolant Header Tank PRV: Checked on car numbers 04 and 01.
• Tyre Fitment & Heating Blankets: All cars on the grid had tyres fitted and heating blankets disconnected at the '5-Minutes' signal.
• Tyre Temperature (LHS & RHS Front/Rear): Checked on car numbers 81, 04, 16, 01, 22, 63, 14, 31, 87, 06, 30, 55, and 05.
• Minimum Tyre Starting Pressure (LHS & RHS Front/Rear): Checked on all cars.

After the Race:

Car Weighing:

All cars that participated in the race were weighed. A full list of car numbers and drivers is provided in the original document.

Aerodynamic Component & Bodywork Area Checks (Car Numbers 16, 63, 87):

Various components were checked against the Technical Regulations (TR):

• Floor Body (TR Article 3.5.1)
• Floor Fences (TR Article 3.5.2)
• Floor Edge Wing (TR Article 3.5.3)
• Nose (TR Article 3.6.1)
• Forward Chassis (TR Article 3.6.2)
• Mid Chassis (TR Article 3.6.3)
• Mirror Housing (TR Article 3.6.4)
• Sidepod (TR Article 3.7.1)
• Coke Panel (TR Article 3.7.2)
• Engine Cover (TR Article 3.7.3)
• Tail (TR Article 3.8.1)
• Front Wing Profiles (TR Article 3.9.1)
• Front Wing Endplate Body (TR Article 3.9.2)
• Front Wing Tip (TR Article 3.9.3)
• Front Wing Diveplane (TR Article 3.9.4)
• Front Wing Endplate (TR Article 3.9.5)
• Rear Wing Profiles (TR Article 3.10.1)
• Pylons (TR Article 3.10.2)
• Rear Wing Beam (TR Article 3.10.3)
• Rear Wing Endplate Body (TR Article 3.10.4)
• Rear Wing Tip (TR Article 3.10.5)
• Rear Wing Endplate (TR Article 3.10.7)

Post-Race Technical Checks (General):

• Plank and Skid Wear: Checked on car numbers 81, 04, 16, 01, 18, 14, 31, 87, 27, and 05.
• ICE Coolant Header Tank PRV: Checked on car number 05.
• Fuel System:
  • Fuel pressure (all cars)
  • Fuel flow meter calibration checksums (all cars)
  • Instantaneous fuel mass flow (all cars)
  • Partial load fuel mass flow (all cars)
  • Fuel temperature (all cars)
• Engine & Power Unit:
  • Logged pressure within engine cooling system (all cars)
  • Engine high rev limit bands (all cars)
  • Plenum temperature (all cars)
  • Oil consumption (all cars)
  • Exhaust fluid mass flow (all cars)
  • IVT code and calibration checksums (all cars)
  • IVT temperatures (all cars)
  • ES state of charge on-track limits (all cars)
  • Lap energy release and recovery limits (all cars)
  • MGU-K power limits (all cars)
  • Maximum MGU-K speed (all cars)
  • Maximum MGU-K torque (all cars)
  • Maximum MGU-H speed (all cars)
  • MGU-K power model (all cars)
  • ES power model (all cars)
  • MGU-K use at race start (all cars)
  • ES not charged while stationary in pits (all cars)
• Control Systems:
  • Torque coordinator demands (all cars)
  • Torque control (all cars)
• General Checks:
  • Session type confirmed (all cars)
  • Chassis FIA checksum (all cars)
  • Rear brakes pressure control (all cars)
  • Brake temperature warnings (all cars)
  • Steering wheel (all cars)
  • Race start data (all cars)
  • Single clutch paddle use for race start (all cars)
  • No car exceeded 80 km/h leaving formation grid prior to race start.
  • PCU dash display configuration not changed during Parc Fermé (all cars).
  • Aerodynamic oscillations metrics (all cars).
• Tyres:
  • Tyre starting pressures during the race (all cars)
  • Tyres cold pressure (car number 44)
  • Tyres used by all drivers during the race.

Conclusion:

All car weights and the items checked were found to be in conformity with the 2025 FIA Formula One Technical Regulations.

Jo Bauer The FIA Formula One Technical Delegate