Published with permission from the Federation Internationale de l' Automobile.
22) TRACK RUNNING TIME OUTSIDE AN EVENT AND WIND TUNNEL TESTING
22.1 Testing of Current Cars (TCC) shall be defined as any track running time, not part of an Event, in which a competitor entered in the Championship participates (or in which a third party participates on behalf of a competitor), using cars which were designed and built in order to comply with the 2013, 2014 or 2015 Formula One Technical Regulations. No competitor may sell or make available a car of the current year to any third party without the full knowledge of the FIA.
Each competitor will also be permitted to carry out two Promotional Events (PE) with the above cars which will not be considered TCC. A PE shall be defined as an event in which a competitor participates purely for marketing or promotional purposes. No such test may exceed 100km in length and only tyres manufactured specifically for this purpose by the appointed supplier may be used.
In order that an FIA observer may be appointed, competitors must inform the FIA of any planned TCC or PE at least 72 hours before it is due to commence, the following information should be provided :
i) The precise specification of the car(s) to be used.
ii) The name(s) of the driver(s) if known.
iii) The nature of the test.
iv) The date(s) and intended duration of the test.
v) The purpose of the test.
22.2 Testing of Previous Cars (TPC) shall be defined as any track running time, not part of an Event, in which a competitor entered in the Championship participates (or in which a third party participates on behalf of a competitor), using cars which were designed and built in order to comply with the 2010, 2011 or 2012 Formula One Technical Regulations.
TPC may only be carried out with cars built to the specification of the period and only tyres manufactured specifically for this purpose may be used.
In order that an FIA observer may be appointed, where possible competitors must inform the FIA of any planned TPC at least 72 hours before it is due to commence, the following information should be provided :
i) The precise specification of the car(s) to be used.
ii) The name(s) of the driver(s) if known.
iii) The nature of the test.
iv) The date(s) and intended duration of the test.
v) The purpose of the test.
22.3 Testing of Historic Cars (THC) shall be defined as any track running time, not part of an Event, in which a competitor entered in the Championship participates (or in which a third party participates on behalf of a competitor), using cars which were designed and built in order to comply with the 2009 Formula One Technical Regulations or earlier.
THC may only be carried out with cars built to the specification of the period and only tyres manufactured specifically for this purpose, or tyres of the period, may be used.
22.4 Competitors may only participate in TCC, TPC or PE using cars which have been subjected to, and fulfilled the requirements of, the tests described in Articles 16.2-6, 17.2-3 and 18.2-9 of the F1 Technical Regulations.
Any car used for TCC or PE must be fitted with the panels described in Articles 15.4.7 and 15.4.8 of the F1 Technical Regulations.
Any car used for TPC must be fitted with the panels described in Article 15.4.7 of the F1 Technical Regulations.
22.5 No competitor may carry out more than 15,000km of TCC during a calendar year.
22.6 No TCC may take place :
a) Whilst a Championship Event is taking place.
b) With more than one car per day at any such test.
c) Before 09.00 or after 18.00 on any day at any such test.
d) On any track located outside Europe without the agreement of the majority of teams and the FIA.
e) During the month of August except under (h) below.
f) Prior to 20 January. [Note : Revert to previous date for 2015]
g) Between 20 January and the start of a ten day period which precedes the start of the first Event of the Championship of the same year with the exception of three team tests of no more than four consecutive days duration, carried out on a site approved by the FIA for Formula 1 cars. [Note : Revert to previous date for 2015]
One day, from any of these tests but no less than 20 days before the start of the first Event of the Championship, must be set aside for testing of wet-weather tyres. Arrangements for this day of testing will be made by the appointed tyre supplier in full consultation with the teams and the FIA.
h) Between the start of a ten day period which precedes the start of the first Event of the Championship and 31 December of the same year with the following exceptions :
i) Four team tests of no more than two consecutive days duration carried out on circuits where an Event has just taken place, such tests commencing no less than 36 hours after the end of the relevant Events.
The number of tests will be reduced if the number of Events during a Championship season exceeds 20, one test will be cancelled for each Event above 20.
In the interests of providing the appointed tyre supplier with access to current F1 cars for the purposes of tyre development, all teams will be obliged to allocate one date from amongst the eight in-season test days for testing tyres :
- Allocation of dates will be negotiated with the appointed tyre supplier who will give priority to teams according to their positions in the previous year's Championship.
- Allocations must be declared by each team to the FIA before the start of the first Event of the Championship and may not be subsequently changed.
- The team must test tyres on the allocated day according to run plan defined by the appointed tyre supplier.
- The run plans and results for each day of tyre testing must be made available to all teams.
- Tyres used during such testing day will not be drawn from the team's annual allocation of tyres for testing.
ii) If a team declares that one of its current race drivers is to be substituted by a driver who has not participated in an F1 race in the two previous calendar years, one day of TCC will be permitted between the start of a ten day period which precedes the start of the second Event and the last Event of the Championship. The following must be observed :
- Any such day may only be carried out by the new driver and may not take place on a circuit hosting a race in the current Championship year.
- Any such day may only take place within a period 14 days prior to the substitution and 14 days after the substitution has taken place.
- If a team, having declared the driver's substitution and performed the test, does not then enter an Event with the new driver, the team will be penalised by a reduction of one day from the pre-season TCC days available in the following year.
22.7 During all TCC and TPC cars must be fitted with the FIA ECU required by Article 8.2 of the FIA Formula One Technical Regulations.
22.8 No TCC is permitted at sites which are not currently approved for use by Formula 1 cars.
22.9 During all Formula One TCC :
a) Red flag and chequered flag procedures must be respected.
b) No other type of vehicle is permitted on the track.
c) Cars being driven by drivers who do not possess a Super Licence must be fitted with a green rear light which must be illuminated at all times the car is on the track.
d) Every reasonable effort should be made to ensure that the recommendations concerning emergency services detailed in Article 16 of Appendix H to the Code are followed.
22.10 If, after an incident during TCC and TPC, the Medical Warning Light signals that threshold forces have been exceeded the driver must present himself for examination in the circuit medical centre without delay.
22.11 Competitors must abide by the aerodynamic testing restrictions set out in Appendix 8.
22.12 All competitors must observe a shutdown period of fourteen consecutive days in the month of August during the time that two consecutive Events are separated by at least twenty four days. Competitors should notify the FIA of their intended shutdown period within 30 days of the start of the championship season.
During the shutdown period no team, nor any of its suppliers, may carry out any of the following activities for or on behalf of the team :
a) Operation or use of any wind tunnel (excluding any service and maintenance activity).
b) Operation or use of any computer resource for Restricted CFD Simulations (excluding any service and maintenance activity).
c) Production or development of wind tunnel parts, car parts (including the powertrain), test parts or tooling.
d) Sub-assembly of car parts (including the powertrain) or assembly of cars.
e) Any work activity by any employee, consultant or sub-contractor engaged in development or production (excluding any work activity to be undertaken at the race track in preparation for the Event immediately following the shutdown period).
Each competitor must notify its suppliers of the dates of its shutdown period and must not enter into any agreement or arrangement with the intention of circumventing the prohibition on the above activities.
22.13 During the shutdown period the following activities will not be considered a breach of the above :
a) Repairs carried out with the agreement of the FIA to a car seriously damaged during the Event preceding the shutdown period.
b) The assembly and servicing of running or static show cars, none of which may entail the production, assembly or servicing of any current car parts.
c) The operation and use of any wind tunnel or computer resource for Restricted CFD Simulations provided this is being carried out for projects with no direct relation to Formula One or for or on behalf of a competitor that is not at that time within its own shutdown period.
d) Any activity the sole purpose of which is supporting projects unconnected to Formula One, subject to the written approval from the FIA.
AERODYNAMIC TESTING RESTRICTIONS
The Aerodynamic Testing Restrictions, and the definitions and rules which will apply to aerodynamic testing, are as follows :
1. Restricted Wind Tunnel Testing
1.1 In the context of this Appendix the word bodywork will have the same definition as that provided by Article 1.4 of the F1 Technical Regulations.
1.2 Restricted Wind Tunnel Testing is the testing by a Team or any Related Party of that Team, or any agent or sub-contractor of the Team or any of its Related Parties, in a test environment of a representation of an F1 car or subcomponent in order to measure, observe or infer any forces, displacements, pressures or air flow direction resulting directly or indirectly from the incident air flow. The only allowable exceptions from this definition are as follows :
a) Wind tunnel testing which aims to develop components associated with cooling, or the running of the engine from a boundary commencing at the engine air intake duct, passing through the engine and finishing at the exit of the exhaust tailpipes, provided that there is no direct or indirect measurement of aerodynamic force during the test. In this context, pressure and flow measurements within a duct shall not be considered to be measurements of aerodynamic force.
For the avoidance of doubt, any wind tunnel testing to develop bodywork parts other than as referred to in sub-paragraph (a) above even without aerodynamic force measurement is within the definition of Restricted Wind Tunnel Testing.
In some cases a testing rig which was devised to develop components associated with cooling or the running of the engine could have the potential to offer secondary benefits for bodywork development. Specific examples of such rigs and the additional restrictions that apply to them are provided in section 5.
b) Any aerodynamic test conducted by an F1 car at any Event.
c) Any aerodynamic test conducted by an F1 car during and at Track Testing as permitted by the F1 Sporting Regulations.
1.3 No Restricted Wind Tunnel Testing may be carried out using a scale model which is greater than 60% of full size.
1.4 No Restricted Wind Tunnel Testing may be carried out at an air speed exceeding 50m/s.
1.5 Restricted Wind Tunnel Testing may only be used in wind tunnels which have been nominated by the Team to the FIA.
1.6 The Restricted Wind Tunnel Testing fluid must be air at atmospheric pressure.
1.7 During Restricted Wind Tunnel Testing only one model may be used per test and only one model change is permitted per wind tunnel per 24 hour period. Compliance with this restriction will be determined upon the time elapsed between the wind speed exceeding 15m/sec with successive models, not upon the occupancy of the wind tunnel test section by successive models. For the avoidance of doubt, a model in this context is defined by its underlying spine, motors and sensors. Detail changes to the aerodynamic configuration of a given model remaining in the wind tunnel are permitted.
1.8 During Restricted Wind Tunnel Testing, once the air speed rises above 15m/s the bodywork of the test car or subcomponent must remain fixed until the air speed returns below 1m/s with the exception of any freedom set out in section 6.
2. Restricted CFD Simulations
2.1 Restricted CFD Simulations are computational fluid dynamic (CFD) simulations by a Team or any Related Party of that Team, or any agent or sub-contractor of the Team or any of its Related Parties, of flows that are gaseous in the case of the full size F1 car and are not classified as Engine Simulations. Any simulation of flows contained within the engine cooling or lubrication systems, air, air/fuel mixtures, combustion process or products of combustion from a boundary commencing at the engine's atmospheric air intake ducts, passing through the engine and finishing at the exit of the exhaust tailpipe will be classified as an Engine Simulation.
2.2 For the avoidance of doubt, if any CFD simulation (other than the Engine Simulation defined above) reveals information about flows that are gaseous on the full size F1 car then it is a
Restricted CFD Simulation. For example; any CFD simulations conducted at scales other than 1:1 or using non gaseous fluids are still Restricted CFD Simulations as they reveal information about flows that are gaseous on the full size F1 car.
2.3 Restricted CFD Simulations refer to the solver part of the process (irrespective of the numerical scheme behind the simulation) plus any mesh adaptation included in a solver optimisation loop. Pre-processing, mesh creation and post processing of CFD simulations are unrestricted. Only the calculation part of the process (iteration time) shall be included in the Restricted CFD Simulations.
2.4 Restricted CFD Simulations do not apply to calculations made for the purpose of optimising CFD methodology, provided they use a physical car geometry which is more than 12 months old, and this car geometry is not added to, removed from, morphed or modified.
2.5 Restricted CFD Simulations may only be carried out using hardware that has been nominated by the Team to the FIA.
The declaration of the hardware by the Team to the FIA will include :
a) The name and model number of the Processing Unit.
b) Number of Processing Unit cores in the cluster.
c) Peak number of double precision floating point calculations per cycle per core of the Processing Unit.
d) Further to clause 2.5(c), in the case of an Intel CPU with either the Sandybridge or Ivybridge chipset where the team chooses not to exploit the AVX feature; the team must explicitly declare and be able to demonstrate that they are NOT using the AVX feature in the CFD solve process. If the non-usage of the AVX feature is proven to the auditor, the Intel Sandybridge and Ivybridge chipset cores can be rated as 4 flop/cycle/core rather than as 8 flop/cycle/core.
e) Further to clause 2.5(c), in the case of a Processing Unit without a double precision floating point operating capability the number of natural precision operations per cycle per core will be used instead. As an example, a single precision only GPU core will count the number of single precision floating point operations per cycle.
f) Processor speed at which the Processing Unit is configured to run at 100% CPU load.
g) Any off load engines used within the cluster.
h) Maximum Teraflops (flop=double precision floating point operation) the system can use. This may exclude any AVX floating point operations if declared under 2.5(d) or include natural precision operations under 2.5(e).
2.6 The calculation used for the declaration of the 8 week Aerodynamic Testing Period shall be carried out as below.
TotFLOPS = (MFPPC * CCF * NCU * NSS ) / (604,800 * 8 * 1000)
TotFLOPS = The total number of TeraFLOPs used per CFD solve run.
MFPPC = Peak double precision floating point operations per cycle per core of the Processing Unit (excluding AVX if declared under 2.5(d) or using natural precision operations under 2.5(e) if the core is not double precision capable).
CCF = Peak Processing Unit clock frequency in GigaHertz achieved during the CFD solver run. This will be the peak frequency theoretically achievable during the run based on one of the following :
a) The standard clock frequency value from the Processing Unit Manufacturer's specification sheet (if overclocking or enhanced modes are not used in the run).
b) The maximum “turbo”, “HPC” or other enhanced mode frequency value.
c) The maximum overclocked frequency value.
NCU = Number of Processing Unit cores used for the run.
NSS = Number of solver wall clock seconds elapsed during the run. NB Message passing time during calculation should be included.
All information required for auditing should be present in the output from the run including the CCF value.
For the avoidance of doubt, any offload processing for example FPU, FPGA, GPU/GPGPU, VFP, softfp etc. should be included and calculated using the same method as above.
3. Combined Restricted Wind Tunnel Testing and Restricted CFD Simulation Restriction
3.1 The usage limits for Restricted Wind Tunnel Testing and Restricted CFD Simulations are expressed in terms of Wind On Time, number of runs, tunnel occupancy and CFD Teraflops Usage during an Aerodynamic Testing Period.
3.2 An Aerodynamic Testing Period is an eight week period used for evaluation of these restrictions. As soon as one Aerodynamic Testing Period finishes, a new one begins. The start and finishing dates for each Aerodynamic Testing Period for a given calendar year will be published by the FIA at the start of each calendar year.
3.3 Wind On Time is defined as the amount of time (in hours) per week, averaged over the
Aerodynamic Testing Period, where the wind tunnel air speed exceeds 15m/s for Restricted Wind Tunnel Testing. For the avoidance of doubt any Restricted Wind Tunnel Testing performed for the Team by any Related Party of that Team, or any agent or sub-contractor of the Team or any of its Related Parties during an Aerodynamic Testing Period must be included in this calculation as if the tests were performed by the Team.
3.4 CFD Teraflops Usage is defined as the average number of teraflops of computing power used for the purpose of making Restricted CFD Simulations during the Aerodynamic Testing Period.
For the avoidance of doubt, computer resource used for Restricted CFD Simulations that fail or are aborted by the user must still be included in the CFD Teraflops Usage calculation. For the further avoidance of doubt any Restricted CFD Simulations performed for the Team by any Related Party of that Team, or any agent or sub-contractor of the Team or any of its Related Parties during an Aerodynamic Testing Period must be included in this calculation as if the simulations were performed by the Team.
3.5 Each Team must limit Restricted Wind Tunnel Testing and Restricted CFD Simulations so that at the end of each Aerodynamic Testing Period it can be demonstrated that the Team has operated according to the Limit Line.
3.6 The Limit Line is defined as follows :
WT <= WT_limit (1 – CFD/CFD_limit)
WT = Wind On Time
WT_limit = 30 hours
CFD = CFD Teraflops Usage
CFD_limit = 30 Teraflops
3.7 The limit in CFD simulation (“CFD_limit” in the Limit Line) will be revised every three years, starting from 1st January 2014, to a new performance level to take account of changes to CFD hardware ownership and running costs.
3.8 Each Team must also limit Restricted Wind Tunnel Testing to a maximum of 80 runs per week and a maximum of 60 hours of tunnel occupancy per week. At the end of each Aerodynamic
Testing Period it will also have to be demonstrated that the Team has operated according to these Limits.
4. Reporting and Benchmarking
4.1 Each Team must declare to the FIA in writing the computer resource that is employed for the purpose of Restricted CFD Simulations. If the hardware is changed or upgraded then a new declaration must be submitted to the FIA within one month of the change.
4.2 Each Team must declare to the FIA in writing the wind tunnel resource that is employed for the purpose of Restricted Wind Tunnel Testing. If a different facility is to be used or if the existing facility is significantly changed or upgraded then a new declaration must be submitted to the FIA within one month of the change.
4.3 Each Team shall report to the FIA details of its Restricted Wind Tunnel Testing and Restricted CFD Simulations for the preceding Aerodynamic Testing Period within 7 days of the end of that Aerodynamic Testing Period. The data must be provided in the format specified by the FIA.
This declaration shall be based on records of the solution time of each Restricted CFD Simulation to a precision of at least the nearest second and on records of the Wind On Time of each wind tunnel run performed during Restricted Wind Tunnel Testing to a precision of at least the nearest second.
4.4 In order to check on the hardware employed by the Teams and as a means of assuring common application of the restrictions set out in this Appendix, the FIA will arrange for independent benchmarking inspections of both Wind Tunnel and CFD activities to be carried out from time to time. Recommendations arising from these inspections will be incorporated into this Appendix.
5. Exceptions to definition of Restricted Wind Tunnel Testing
5.1 Free testing is permitted (and therefore not within the definition of Restricted Wind Tunnel
Testing) for development of suspension and steering systems (Article 10 of the F1 Technical
Regulations), brake systems (Article 11 of the F1 Technical Regulations) and wheels and tyres
(Article 12 of the F1 Technical Regulations) provided such tests do not concurrently test (or in any way provide incidental data or knowledge) concerning performance or endurance of parts or systems classified as bodywork.
5.2 Steady State and Dynamic engine dynamometer work with an F1 car or subcomponent may be performed (and therefore not within the definition of Restricted Wind Tunnel Testing) provided that :
a) The bodywork used in the test has no front wing assembly (Articles 3.7.2 to 3.7.8 of the
F1 Technical Regulations) or rear wing assembly (the whole of Article 3.10 of the F1
Technical Regulations) present.
b) No devices designed to measure directly or indirectly aerodynamic forces or flow field characteristics are installed in the facility used.
c) No sensor installed on the car or subcomponent which are capable of measuring displacements, pressures or air flow direction of the external airstream resulting directly or indirectly from the incident air flow may be logged. Logging files have to be available, if required, during the independent benchmarking inspection.
d) The gas flow exiting from the exhaust system is ducted away from the testing area before impacting on any bodywork component (other than the exhaust itself).
6. Bodywork Items that may be adjusted during a Restricted Wind Tunnel Testing Run
6.1 The following degrees of freedom are permitted during the course of a Restricted Wind
Tunnel Testing run :
a) The flap angle of a front wing may be adjusted.
b) The incidence of the rear most and uppermost element of the top rear wing may be adjusted.
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