# From The FIA Formula One Technical Delegate To The Stewards Document 56 Date 12 December 2021 ## Time 20:25 2021 ABU DHABI GRAND PRIX 9 - 12 December 2021 ## Technical Delegate's Report **Before the race:** A fuel sample was taken from car numbers 55, 47 and 63 and analysed during the race. An engine oil sample was taken from car numbers 47 and 63. On the grid it was checked that all cars had fitted their tyres when the "5-Minutes" signal was given. On the grid it was checked that the top ten cars had fitted the tyres which they had used when doing their fastest lap in Q2. On the grid the temperature of the LHS and RHS front and rear tyre was checked on car numbers 44, 77, 33, 11, 03, 04, 18, 05, 14, 31, 16, 55, 22, 10, 07, 99, 47, 63 and 06. On the grid the minimum tyre starting pressure of the LHS and RHS front and rear tyre was checked on car numbers 44, 77, 33, 11, 03, 04, 18, 05, 14, 31, 16, 55, 22, 10, 07, 99, 47, 63 and 06. ## After the race: ## The following cars were weighed: ## Number Car Driver 44 Mercedes Lewis Hamilton 77 Mercedes Valtteri Bottas 33 Red Bull Racing Honda Max Verstappen 11 Red Bull Racing Honda Sergio Perez 04 McLaren Mercedes Lando Norris 05 Aston Martin Mercedes Sebastian Vettel 14 Alpine Renault Fernando Alonso 31 Alpine Renault Esteban Ocon 16 Ferrari Charles Leclerc 55 Ferrari Carlos Sainz 22 AlphaTauri Honda Yuki Tsunoda 10 AlphaTauri Honda Pierre Gasly 47 Haas Ferrari Mick Schumacher The steering wheel of car numbers 44, 77, 33, 11, 03, 04, 18, 05, 14, 31, 16, 55, 22, 10, 07, 99, 47, 63 and 06 has been checked. ## Car numbers 14 and 10 were checked for the following: 1)         Bodywork around the front wheels 2)         Front wing height and overhang 3)         Rear wing height and overhang 4)         Front and rear wing width 5)         Rear wing configuration 6)         Rear bodywork area 7)         Rear winglet height 8)         Skidblock thickness 9)         Stepped bottom 10)      Diffuser height 11)      Diffuser area 12)      Overall height 13)      Overall width The profile of the in Article 3.3.1 of the 2021 Formula One Technical Regulations prescribed front wing section was checked on car numbers 14 and 10. The minimum distance between the adjacent rear wing sections at any longitudinal vertical plane was checked on car numbers 14 and 10. It was confirmed for car numbers 14 and 10 that any vertical cross section of bodywork normal to the car centre line and situated in the volumes defined in Article 3.5.7 form one tangent continuous curve on its external surface with a radius no less than 75mm. The concave radius of sections of the two rear wing elements which are in contact with the external air stream was checked on car numbers 14 and 10. ## The front and rear brake air duct dimensions were checked on car numbers 14 and 10. ## The uppermost rear wing element adjustable positions were checked on car 14 and 10. The engine high rev limit bands were checked on car numbers 44, 77, 33, 11, 03, 04, 18, 05, 14, 31, 16, 55, 22, 10, 07, 99, 47, 63 and 06. | The oil | consumption | was checked | on car numbers | 44, 77, 33, | 04, 14, 31, | 16, 55, 22 | and 10. | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | The plenum | temperature | was | checked on 44, | 77, 33, 11, 03, | 04, 18, 05, | 14, 31, 16, | 55, 22, 10, | 07, | | 99, 47, | 63 and 06. | | | | | | | | | The IVT | temperatures | were checked | on car numbers | 44, 77, | 33, 11, 03, | 04, 18, 05, | 14, 31, 16, | 55, | | 22, 10, | 07, 99, 47, | 63 and 06. | | | | | | | | The ES | state of | charge on-track | limits were checked | on car | numbers 44, | 77, 33, 11, | 03, 04, 18, | 05, | | 14, 31, | 16, 55, 22, | 10, 07, 99, | 47, 63 and 06. | | | | | | | The lap | energy | release and recovery | limits were | checked on | car numbers | 44, 77, 33, | 11, 03, | 04, 18, | | 05, 14, | 31, 16, 55, | 22, 10, 07, | 99, 47, 63 and | 06. | | | | | | The MGU-K | power | limits were | checked on car | numbers 44, | 77, 33, 11, 03, | 04, 18, 05, | 14, 31, | 16, | | 55, 22, | 10, 07, 99, | 47, 63 and | 06. | | | | | | | The maximum | MGU-K | speed | was checked on | car numbers | 44, 77, 33, 11, | 03, 04, 18, | 05, 14, | 31, | | 16, 55, | 22, 10, 07, | 99, 47, 63 | and 06. | | | | | | | The maximum | MGU-K | torque | was checked on | car numbers | 44, 77, 33, 11, | 03, 04, 18, | 05, 14, | 31, | | 16, 55, | 22, 10, 07, | 99, 47, 63 | and 06. | | | | | | | The maximum | MGU-H | speed | was checked on | car numbers | 44, 77, 33, 11, | 03, 04, 18, | 05, 14, | 31, | | 16, 55, | 22, 10, 07, | 99, 47, 63 | and 06. | | | | | | | The session | type | has been confirmed | for car | numbers 44, 77, | 33, 11, 03, | 04, 18, 05, | 14, 31, | 16, 55, | | 22, 10, | 07, 99, 47, | 63 and 06. | | | | | | | | Chassis | FIA checksum | was checked | on car numbers | 44, 77, | 33, 11, 03, | 04, 18, 05, | 14, 31, 16, | 55, | | 22, 10, | 07, 99, 47, | 63 and 06. | | | | | | | | The rear | brakes | pressure control | was checked | on car numbers | 44, 77, 33, | 11, 03, 04, | 18, 05, | 14, | | 31, 16, | 55, 22, 10, | 07, 99, 47, | 63 and 06. | | | | | | | The brake | temperature | warnings | were checked | on car numbers | 44, 77, 33, | 11, 03, 04, | 18, 05, | 14, | | 31, 16, | 55, 22, 10, | 07, 99, 47, | 63 and 06. | | | | | | | The race | start data | of car numbers | 44, 77, 33, | 11, 03, 04, 18, | 05, 14, 31, | 16, 55, 22, | 10, 07, | 99, 47, | | 63 and | 06 have | been checked. | | | | | | | | Single clutch | paddle | use for the | race start has | been checked | on car numbers | 44, 77, | 33, 11, | 03, 04, | | 18, 05, | 14, 31, 16, | 55, 22, 10, | 07, 99, 47, 63 and | 06. | | | | | | The MGU-K | use | at the race start | was checked | on car numbers | 44, 77, 33, | 11, 03, 04, | 18, 05, | 14, | | 31, 16, | 55, 22, 10, | 07, 99, 47, | 63 and 06. | | | | | | | It was checked | on | car numbers | 44, 77, 33, 11, | 03, 04, 18, 05, | 14, 31, 16, | 55, 22, 10, | 07, 99, | 47, 63 | | and 06 | that the ES | was not charged | while the | car was stationary | in the pits. | | | | It was checked that car numbers 44, 77, 33, 11, 03, 04, 18, 05, 14, 31, 16, 55, 22, 10, 07, 99, 47, 63 and 06 did not exceed 80 km/h when leaving the formation grid prior to the start of the race. It was verified on car numbers 44, 77, 33, 11, 03, 04, 18, 05, 14, 31, 16, 55, 22, 10, 07, 99, 47, 63 and 06 that the PCU dash display configuration was not changed during Parc Fermé. ## The tyre starting pressures of all cars during the race were checked. ## The tyres used by all drivers during the race today have been checked. It was checked that car numbers 44, 77, 33, 11, 03, 04, 18, 05, 14, 31, 16, 55, 22, 10, 07, 99, 47, 63 and 06 did not exceed 15000 rpm during the race. The fuel pressure of car numbers 44, 77, 33, 11, 03, 04, 18, 05, 14, 31, 16, 55, 22, 10, 07, 99, 47, 63 and 06 during the race was checked. The logged pressure within the engine cooling system during the race was checked on car numbers 44, 77, 33, 11, 03, 04, 18, 05, 14, 31, 16, 55, 22, 10, 07, 99, 47, 63 and 06. Fuel flow meter calibration checksums were checked on car numbers 44, 77, 33, 11, 03, 04, 18, 05, 14, 31, 16, 55, 22, 10, 07, 99, 47, 63 and 06. The instantaneous fuel mass flow of car numbers 44, 77, 33, 11, 03, 04, 18, 05, 14, 31, 16, 55, 22, 10, 07, 99, 47, 63 and 06 was checked. The fuel temperature of car numbers 44, 77, 33, 11, 03, 04, 18, 05, 14, 31, 16, 55, 22, 10, 07, 99, 47, 63 and 06 was checked. The total fuel mass consumed by car numbers 44, 77, 33, 11, 03, 04, 18, 05, 14, 31, 16, 55, 22, 10, 07, 99, 47, 63 and 06 during the race was checked. ## A fuel sample was taken from car number 16. ## The fuel samples have been checked for density and analysed by gas chromatography. The results of all the fuel analyses show that the fuels were the same as ones, which had been approved for use by the relevant competitors prior to the Event. Further the density change of the fuel samples taken today was within the permitted limits. ## An engine oil sample was taken from car number 16. The engine oil samples have been analysed by FTIR spectroscopy and viscometry. The results of the FTIR analyses show that the sampled oils were consistent with reference engine oil samples which had been approved for use by the relevant competitors prior to the Event. ## All car weights and the items checked were found to be in conformity with the 2021 FIA Formula One ## Technical Regulations. ## The FIA Formula One Technical Delegate Jo Bauer