ERATION D E F N A E P EURO TED of RA RADIO OPE L E D MO Automobiles APPENDIX 3 Appendix 3 APPENDIX 3 ELECTRIC CARS AGENERAL 1. 1.1.1 1.1.2 1.1.3 1.1.4 1.1.5 1.1.6 1.1.7 1.1.8 1.1.9 1.1.10 1.1.11 1.1.12 1.1.13 1.1.14 1.1.15 1.2. 1.2.1 1.2.2 1.2.3 1.2.4 1.2.5 1.3 1.3.1 RACETRACK SPECIFICATIONS for electric classes For EFRA-sanctioned events, where non-permanent tracks are used, the track plans have to be submitted to the Section Chairman for approval. Track-design must include both right and left-hand turns and one or more straights. Minimum track length: 120 meters. Outside barriers must provide a positive means of stopping a car that misses a corner or runs out of control. Track marking equipment must be such a shape and size to prevent the entrapment of a car or the drivers view becoming obscured. 'Horizontally laid triangular column' shaped barriers and 'Bot dots' are not to be used. Farthest point of the track must not be more than 50 meters away from driver's rostrum. Time-keeping: preferable on a slow part of the track to enable accurate counting. Marshall positions based on car numbers must be equally spread around the track. It should be clear which part of the track the specified position is responsible for. A 220-volt electrical supply must be available at EC meetings with one outlet for every four drivers in close proximity to their pitting area. All safety precautions must be observed. For the EFRA staggered start system one start line must be marked across the track, preferably close to the time-keeping's pick-up loop position (otherwise two). All finals will use a "F1" type grid start with a minimum of 2 meter alternating intervals with two rows of cars. Cars must be placed forward facing to their markerline or startbox. Wherever possible the start line(s) must be accessible without crossing any other part of the track. The start line will be white or yellow coloured, have a minimum width of 5cm and shall cover the total width of the track and will also be marked on the barriers. There shall be marked boxes for the final F1 grid. Top Qualifying driver may choose his starting position on the grid either left or right, this then to be the configuration for all remaining finals. Marshall intervention must be minimised by using smooth obstacles such as dots or cones, of appropriated heights. Specific track requirements for 1/12 & 1/10 Touring class tracks Indoor track surface must be needle carpet with smooth joints properly attached to the floor. For onroad racing, only smooth surfaces will be allowed. Indoor Limits: minimum track width 2 meters between the marking lines. At the start line the track must be at least 3 meters in width as far as the first turn. Marking lines must be either white or yellow, minimum width of 2.5 cm, and must be at least 20 cm away from the edge of the racing surface or track barrier. The track surface for 1:10Electric Saloon Cars can be both asphalt or needle carpet. The track surface for 1/12th electric sports cars must be indoors on needle carpet. Specific track requirements for 1/10 Off Road class tracks Width: 3 metres minimum. 119 EFRA Handbook 2015 1.3.2 1.3.3 1.3.4 1.4 1.4.1 2. 2.1 120 The spirit of scaled down off Road racing must be adhered to. (Modified On-Road tracks are not considered suitable). If two Classes (2WD & 4WD) are to be held on the same track, it is preferred that the track should be significantly different for the two Classes. Reverse operation is acceptable. If tracks contain permanent jumps/features that cannot be easily changed or used it the reverse direction, then it is permissible to use the same track layout for both Classes (2WD & 4WD), subject to agreement with the Section Chairman at least two (2) months prior to the event. Maximum track length: 250 meters. Requirements for time-keeping equipment The main timing PC must automatically announce the following in clear English: 2 minutes to the start of the race 30 Seconds to the start of the race (& start order for staggered starts at this point) 10 second countdown and start 'Sound' for line starts (i.e. finals) 10 second countdown and call the cars off the line in case of staggered starts Time calls and race order every 2 minutes Cars finished & race over MOTORS FOR ELECTRIC SCALE CARS: All EC and GP events will clearly state which class of motors to be used. MODIFIED BRUSHLESS MOTORS: 1 Sensorless as well as sensored motors are allowed. 2 The motor has to be rebuildable . Ball bearings are allowed. 3 If the motor is sensored: It must use a six position JST ZH connector model number ZHR-6 or equivalent connector with 6JST part number SZH-002T- P0.5 26-28 AWG contacts or equivalent. Wire sequence must be as follows: Pin #1 - Black wire ground potential Pin #2- Orange wire phase C Pin #3- White wire phase B Pin #4 - Green wire Phase A Pin #5- Blue wire temp control, 10K thermistor referenced to ground potential Pin #6- Red wire +5.0 Volts DC +/-10% Compatible speed control must use the 6 position JST header part number X-6B-ZR-SMX-TF (Where the X denotes the stile of header), or equivalent. The power connector has to be clearly marked A, B, C: A for phase A, B for phase B and C for phase C 4 "05" Size specifications Can: Overall maximum diameter is 36,02mm measured at whatever point yields the maximum dimension, excluding solder tabs or lead wires. Overall minimum diameter is 34,0mm measured at whatever point yields the minimum dimension, excluding solder tabs or lead wires. Maximum length is 53,0mm measured from the mounting face of the motor to the furthest most point of the end bell, not including solder tabs, lead wires or original manufacturer's logo or name. Minimum length is 50,0mm measured at whatever point yields the maximum dimension, excluding solder tabs or lead wires. Motor mounting holes must be on 1,00 inch (25.0 - 25.4mm) centres. Stack/Stator: The stack or backiron must be continuous. The laminations have to be one after the other without anything in between. Stack/backiron Appendix 3 2.2 minimum length 19.3mm, maximum 21.0mm. The thickness of the stack/ backiron laminations is 0.35 +/- 0.05mm. All laminations must be of the same material. Inside diameter of stack or windings equals the central space between the laminations or assembly of windings and must accept 'plug' gauges of 12.5mm minimum, 16.0mm maximum. These dimensions to be measured with the centre of the 'plug' gauge in-line with the centre of the motor can. (ie. concentric to can). Winding: Delta and Y wounded stators are permitted. Only circular (round) pure copper is permitted. There is no turn limit. Rotor: Output shaft diameter must be 0,125" (3.175mm). Only one piece, two poles Neodymium or Ferrite magnetic rotors are permitted. The rotor will be identified with the manufacturers name or logo and the unique part number. Applies to all rotors in new motors or new optional rotors starting from 1st. April 2015 onwards. Magnet: Minimum length 23,0mm. Maximum 27,0mm. Magnet minimum diameter 12,0mm, maximum 15,5mm. 5 All motors must have the original manufacturer's logo or name permanently marked by the manufacturer into the end bell or end-plate. 6. If the stator cannot be easily removed from the assembled motor for technical verification of sizes or construction, then the Can/Sleeve must have:Slots or holes that will allow measurement of the stator length. Slots or holes to allow visual appraisal of the laminates used in the stator. Rule to be applied to any new range of motor starting 01.01.12. Existing motors without these features are not excluded. 7. No hybrid motors allowed (mixing of parts from different manufacturers), with the exception of Rotors in Modified Motors only. ‘SPEC’ BRUSHLESS MOTORS (17.5T, 13.5T and 10.5T ‘wind’ limit) The following rules have been agreed by various International organisations. 1 Only sensored motors are allowed in the Spec. classes. 2 The motor has to be rebuildable. Ball bearings are allowed. The motor must be constructed to allow easy replacement of the; rotor, bearings and front End-Bell. 3 Sensor connection requirements: The motor must use a six-position JST ZH connector model number ZHR-6 or equivalent connector with 6 JST part number SZH-002T-P0.5 26-28 awg. contacts or equivalent. Wire sequence must be as follows: Pin #1 - Black wire ground potential Pin #2 - Orange wire phase C Pin #3 - White wire phase B Pin #4 - Green wire phase A Pin #5 - Blue wire temp control, 10 k Thermistor referenced to ground potential Pin #6 - Red wire + 5.0 volts d.c. +/- 10%. Compatible speed control must use the 6 position JST header part number X-6B-ZR-SMX-TF (where the X denotes the style of the header), or equivalent. The motor power connectors have to be clearly marked A, B, C. A for phase A. B for phase B. C for phase C It is not mandatory that sensored Speed Controls have to be used, or that the sensor ‘harness’ has to be connected. 121 EFRA Handbook 2015 4 The Can. (Based on `05` size specifications). The overall dimensions of the assembled motor do not include: - solder tabs, lead wires or the original manufacturer’s logo or name. Overall maximum diameter is 36.02mm measured at whatever point yields the maximum dimension. Overall minimum diameter is 34.0 mm measured at whatever point yields the minimum dimension. Maximum length is 53.0 mm measured from the mounting face of the motor to the furthest point of the end bell. Minimum length is 50.0 mm measured from the mounting face of the motor to the furthest point of the end bell. Motor mounting holes must be on nominal 25.0/25.4 mm centres. 5 The Stack/Stator: Slot-less stators are not allowed. The stator must be continuous laminations having the same overall shape, being one after the other without anything in between. The laminations must be of one homogeneous material without cut-outs, holes or hollow sections other than for the three slots of copper coil wires and the three grooves for the screws used to hold the entire assembly together. Stator minimum length 19.3 mm, maximum 21.0 mm. The thickness of the stator laminations is 0.35 +/- 0.05 mm. The Inside diameter of the stator must accept a ‘plug gauge’ of 14.50 mm +0/-.005 diameter, clearing the stator, plus its windings and the electrical collection ring at any end of the stator. 6 The Winding: Only three slot (phase) “Y” (star) wound stators are allowed. No delta wound stators allowed. Only circular (round) pure copper magnet wire permitted. The three slotted stator must be wound with: 17.5T Class:- 17.5 turns of 2 x 20 awg. (or 0.813 mm) maximum wire dia. 13.5T Class: - 13.5 turns of 2 x 21 awg. (or 0.724 mm), & 2 x 23 awg. (or 0.574 mm) maximum wire dia. 10.5T Class: - 10.5 turns of 2 x 20 awg. (or 0.813 mm), & 2 x 22 awg. (or 0.643 mm) maximum wire dia. Dimensions are before lacquer coating. The electrical circuit through the windings can only be from the ends of the wires forming the designated number of turns. 7 The Rotor: Shaft diameter must be 3.175mm where the pinion gear locates. Only one piece, two pole Neodymium bonded or sintered, or Ferrite (ceramic) magnetic rotors are permitted. Magnet length will be 25.00 +/- 1.00mm, not including any non-magnetic balancing aids. Magnet outside diameter will be 12.20/12.51mm (min./max. with no further tolerance) for the entire length of the magnet. The shaft outside diameter where the magnet is mounted will be 7.25mm +/- 0.15mm, with this diameter extending beyond the magnet to facilitate measurement. The rotor will be identified with the manufacturers name or logo and the unique part number. Applies to all rotors in new motors or new optional rotors from 1st. April 2015 onwards. 8 All motors must have the original manufacturer’s logo or name moulded/ engraved into the end bell/plate. A unique marking or feature that is difficult to remove must be incorporated into the assembled motor to identify the motor is either a 17.5T, 13.5T or 10.5T Spec. Class motor. Motors introduced from 2011 onwards must have the 'wind' # etched/engraved onto the outer surface of the motor on a part of the motor that cannot easily be seperated from the stator windings. 9 If the stator cannot be easily removed from the assembled motor for technical verification of sizes or construction, then the Can/Sleeve must have :- Slots 122 Appendix 3 3 3.1.! or holes that will allow measurement of the stator length. Slots or holes to allow visual appraisal of the laminates used in the stator.(Rule to be applied to any new range of motor starting 01.01.12. Existing motors without these features are not excluded.) 10. No hybrid motors allowed (mixing of parts from different manufacturers). BATTERIES EFRA approved cells will be Lithium based (LiPo/LiFe). Each Electric Section will define the number of cells and/or nominal rated voltage. Lithium Based (LiPo/LiFe) Batteries can be approved, but must conform to the following :1. Lithium Based (LiPo/LiFe) battery packs must have a hard, protective case that completely envelopes the cell(s). The case should be made from ABS or a similar material. The two halves of the case must be factory sealed in a way that any attempt to open the case will destroy the case. The only opening in the case that is allowed, is for exit wires or pin type connections. Batteries to comply with the weights specified on the EFRA homologation list, (maximum tolerance for manufacturers is +/- 4%). The maximum case sizes are as follows: 2S Batteries: Length: 139.0 mm. Width: 47.0 mm. (The max. width includes any side exit wires). Height: 25.10 mm. ( Chassis location features additional to this dimension are allowed) Saddle-Pack cells are allowed, but must comply with the above dimensions. Saddle-Pack cells must have a combined dimension of 139.0mm max when placed end to end. 1S Batteries: Length: 93.0mm. Width: 47.0mm. (Side exit wires are allowed outside this dimension). Height: 18.5mm. ( Chassis location features additional to this dimension are allowed) 2. Individual cells used in the construction of the battery pack shall be rated at (LiPo 3.7/LiFe 3,3) volts nominal. Individual cells may be wired in parallel. For 2S Packs, the maximum connection 'In Series' is two, to give a Final pack voltage of (LiPo 7.4v/LiFe 6.6v) nominal. For 1S Packs, cells can only be connected in parallel to give a Final pack voltage of (LiPo 3.7v/LiFe 3.3v) nominal. 3. The battery pack shall have leads extending from the case for the positive and negative electrical connections using wire of adequate size to handle discharge rates acceptable to racing applications. Alternatively, the case shall have internal connection points for these wires clearly marked positive and negative so the user can apply the lead wires. Any type of metal connections that are incorporated in the battery pack must be substantially below the major surface of the plastic casing, to prevent any 'short circuit' if placed on a conductive surface. 4. The case must have the original suppliers label intact, stating:- the Part # of the pack, the rated voltage, the chemistry (Lipo/LiFe) and the pack capacity in Wh. The Brand name/logo shall be easily readable. 123 EFRA Handbook 2015 3.2. 3.2.1 3.3 3.4 3.5 3.6 124 5. All LiPo/LiFe packs must be charged with a LiPo/LiFe-capable charger using the industry standard CC/CV (Constant Current/Constant Voltage) charge profile. 6. 2S LiPo/LiFe batteries may be charged to a maximum of 8.40v (LiPo) resp. 7.40v (LiFe). 1S LiPo/LiFe batteries may be charged to a maximum of 4.20v (LiPo) resp. 3.70v (LiFe). Overcharging is a serious safety hazard and will not be tolerated. 7. Any competitor found to be charging cells using a charger that is not specifically designed for LiPo/LiFe cells, or using a charge profile other than the industry standard CC/CV, will be penalised at the event. Any competitor found to have charged LiPo/LiFe cells to above the values detailed in rule 3.1.2 (6) above will be penalised. The different guidelines for use and homologation of LiPo/LiFe-Batteries are published on the EFRA webpage (www.EFRA.ws). A copy of the guidelines for the end-user must be included in the driver’s packages for EC’s. 8. LiPo/LiFe drive batteries must be charged in a ´Lipo sack´ at all times. Anybody not doing this, will be penalized at the event. LiPo sack is defined as a receptacle designed for the purpose of charging LiPo/LiFe batteries and of a suitable construction as to contain a LiPo/LiFe fire. 9. Modifications to the original battery case, by removal of material or any modification that could be deemed to affect safety is not allowed. Battery Approval Processes. Lithium based batteries: 2S Batteries -- A minimum of one individual battery has to be received by 1st. Dec. 1S Batteries -- A minimum of one individual battery has to be received by 1st. Dec. Each individual battery sample must be supplied with : (a) Lithium based batteries must be covered by their safety test certification in accordance with UN Manual of Test and Criteria ST/SG/AC.10/11/Rev.5, Part 3, Sub-Section 38.3, Tests T1 to T8. (b) Technical Spec. sheet detailing the recommended charging rate, the maximum voltage when charging, case material, case thickness and method of sealing the case, the battery weight (max tolerance +/- 4%). New batteries have to be submitted to the EFRA Battery Homologation Officer for approval. Subject to the Officer being satisfied that the new cell conforms with technical specifications and commercial availability, the cell will be legal for use from: - 2S Batteries - the following April 1st. - 1S Batteries - the following March 1st. Cells received after the above submission dates (1st. Dec.) will not be included on the EFRA approved list for the following year. Any changes to the technical specifications or visual appearance of the battery or casing after the original approval will require re-approval. 1/12th Cars will be driven by batteries with a maximum of 3.7 volt nominal. Receiver batteries are allowed. 1/10 Touring scale cars will be driven by a lithium based (LiPo/LIFE) battery. Maximum nominal voltage is 7.4 V/ 6.6 volts. Receiver batteries are not allowed. 1/10 Offroad scale cars will be driven by a lithium based (LiPo/LIFE) battery. Maximum nominal voltage is 7.4 V/ 6.6 volts. Receiver batteries are not allowed. Batteries may not be charged nor changed during a race Appendix 3 3.7 3.8 4. 4.1 4.2 4.3 4.3.1 Only batteries appearing on the official EFRA website will be legal for use in EFRA sanctioned meetings. All previously approved batteries may be used for their lifetime or until their specifications no longer comply with the original one that was approved. It is the driver's responsibility to prove the legality of his cells in case of doubt ELECTRONIC DRIVING AIDS The radio control receiver in the car may operate steering and motor management. A separate battery supply for the powering of the timing equipment is allowed. Using the receiver to capture electrical signals from sensors carried in the car is prohibited, be it wireless or not. Automated steering, gyroscopes to control car movement, traction control, active suspension are not allowed The speed controller may have a device to limit the current/voltage passed from the batteries to the drive motor (e.g. timed delay, current limiter, keyboard programs) as well as a passive data recording device but setting or programming of these devices must only be possible whilst the car is stationary. Starting 2012, events that are designated for using 'Spec. Class Brushless motors' will only allow a Speedo that has a 'zero timing profile', that does not alter the preset mechanical timing of the motor in any way and disables any advanced motor control; functions (ie. Boost, Cheat mode, Turbo etc.). This profile is known as ' Boost 0'. The commutation sequence is limited to "6-step" type and commutation of the Speed control must follow the motors hall sensor signals 1:1. Therefore no change of timing (either advance or retard) is allowed at any RPM." When the "Boost 0" profile is activated, it will be identified by a blinking LED while the ESC is armed and in neutral position. 1 Revolution 3 6 5 2 1 7 4 t 0 2 6 3 5 4 2 5 7 1 6 1 4 7 3 4.4 4.5 No other signals than these for the official lap counting transponder may be sent from the car. Any competitor found in contravention of the spirit or fact will be disqualified from the meeting. The race organiser has the right to inspect any car, its components and transmitter at any time during the race event. 125 EFRA Handbook 2015 5. 5.1 DRIVER PROCEDURE Before your heat, and if hand out equipment is available and needed, collect the auto timing equipment from dispatch and fix it to the car. 5.1.1 When hand out auto-timing equipment is used, it is the driver's responsibility to fit it appropriately to the car and to remove it after timed heat if required. 5.2 When a personal transponder is used the driver is entirely responsible for the efficient functioning of the device. 5.3 As soon as race control allows, collect your transmitter, switch on and drive car to the start line. 5.4 When your heat has finished. Return transmitter, retrieve your car, switch off and bring it to scrutinizing with the handout auto timing equipment if required. 5.5 Marshal the heat following your own at the numbered position corresponding to your car number. 5.6 Collect your car from scrutinizing after marshalling. 5.7 The race director may demand the drivers to stand on the indicated positions on the rostrum. 5.8 The race director has absolute authority at the meeting but refer to your team manager if you encounter problems. 5.9 It is not allowed to enter/access the rostrum until the previous race is declared over by race control. It is not allowed to leave the rostrum before the race is declared over by race control. Penalties can be applied to competitors that do not adhere to this procedure. 7. EUROPEAN CHAMPIONSHIPS 7.1 European Championships will take place every year there is no World Championship in the concerned class held within Europe. However the general meeting can decide otherwise if deemed to be in the interest of the sport. 7.1.1 European Championships are held in the following classes: 1/10 Off-Road 2WD & 4WD 1/12 Modified & 1/12 13.5 T Spec. Brushless 1/10 Touring Cars modified & 1/10 Touring Cars 10.5T Spec. Brushless 7.2ALLOCATIONS 7.2.1 The country allocations for the EFRA European Championships will be established by the section meeting and published in the minutes. 7.2.2 Allocation and re-allocations are according to the general rules. 7.2.3 If available all countries receive re-allocated places in order of the allocation list, unless stated otherwise in this list. Any Federation requiring to be considered for re-allocations should put their request in writing to the Section Chairman no later than 1st January. 7.2.4 100 entrants for 1/12 and 130 for 1/10 Off-Road (One may consider up to 150 participants if timetable and facilities i.e. driver tables etc, permit) are to be accepted for European Championships and GP´s. For 1/10 Touring Car Modified & 1/10 Touring Car 10.5T Spec. Brushless up to 150 entrants have to be accepted for European Championships and GPs. The allocations 1/10 Touring Car modified will be decided at the section meeting first. When all allocations are confirmed the remainder of unfilled entries made available as open entry for the 1/10 Touring spec class. 7.2.5 For EC's any countries allotment is in no case to be higher than 33% of the total number of allocated entries ("No-Show's" and last minute cancelling drivers are not to be considered). 126 Appendix 3 7.2.6 a) The preceding year's European Champion will automatically be allocated a place from the EFRA allocation for the World Championships. b) The reigning World Champion, if European, will automatically be allocated a place in the following two European Championships. c) The reigning European Champion will automatically be allocated a place in the following European Championship 7.2.7. Drivers that finished in the Top 10 at an 1/10 Touring Car European Championship (indoor or outdoor) in the last 2 years are not allowed to participate at the 1/10 Touring Cars Modified 10.5T Spec. Brushless European Championship. At the 1/10 Touring Car modified & 1/10 Touring Car 10.5T Spec. Brushless European Championships drivers are only allowed to enter one of the two classes. 8. TIME TABLES: 8.1 The Race Organiser must schedule all events for each day to be completed and the track closed by 18.30 hours. The pit area must be available for 1:30 hour after the last race. For 1/2th scale events it is recommend to complete each day by 19.30. It is recommended to end the last day early enough to allow participants to start their return journey. 8.1.1. 1/12th EUROPEAN CHAMPIONSHIP: Friday: 1-2 Rounds of un-timed practice (organizers discretion) 2 Rounds of timed practice Opening Ceremony (a limited heat re-seed, based on average lap times of timed practice 1 & 2, will be carried out while the opening ceremony is taking place) 1-2 Rounds of timed practice in new heat format 1 Round of qualifying (In heats used for the last 2 rounds of controlled practice). Total of 5 or 6 rounds of qualifying to be run depending on amount of participants). 6 rounds of qualifying recommended to be run. Saturday: 1 Round of controlled practice in heats (warm-up) 4-8min recommended 5-6 Rounds of Qualifying (depending if one round was run on Friday already) Sunday: 1 Controlled practice for A-final 3 rounds (legs) of all finals 8.1.2. 1/10th Touring EUROPEAN CHAMPIONSHIP: THURSDAY: 09:00 Registration Open and a minimum 2 timed practice, 2 rounds of controlled Practice and 1 Qualifying Round FRIDAY 09:00 1 timed practice (minimum) and 4 Qualifying Rounds SATURDAY 09:00 1 Practice Final (minimum) and 3 finals for all There will be a minimum of 10 min between start of round. Based on the numbers of participants, this timetable can be changed by the organiser with agreement by the section chairman. 8.1.3. 1/10 E off-road EUROPEAN CHAMPIONSHIP: MONDAY:Free practice 2WD, Registration and Technical Inspection TUESDAY:Controlled Practice and Qualifying Rounds 1-3 WEDNESDAY: Schedule permitting, one hour of unofficial practice in Heat Order of Round 4 Qualifying Rounds 4-5, Finals and Prize Ceremony THURSDAY: Free practice 4WD, Registration and Technical Inspection FRIDAY: Controlled Practice and Qualifying Rounds 1-3 127 EFRA Handbook 2015 SATURDAY: Schedule permitting, one hour of unofficial practice in Heat Order of Round 4. Qualifying Rounds 4-5, Finals and Prize Ceremony The Race Organiser can change the above timetable providing he does so well in advance. ALL changes to the Schedule or alterations to times of any Heats/ Finals must be clearly identified to all Team managers and Officials in written form, at least one hour before such changes take place, if any procedures are being brought forward. 8.2 TIMETABLE FOR GRAND PRIX MEETINGS 8.2.1 The timetable for Grand Prix will be left to the discretion of the Organisers taking into consideration the number of competitors in each class. Organiser can determine the Timetable for all racing 9. RACING FORMAT EFRA EUROPEAN CHAMPIONSHIPS AND GRAND PRIX 9.1 PRACTICE 9.1.1 Free practice for E.C. events must be allowed as stated in the concerned timetable. No practice or racing is allowed on the track for 7 days preceding this (see also General rule 8.1.). 9.1.2 For all EC's: 2 series of organised practice with cars grouped in heats will be held with at least one using the official time-keeping system. 9.1.3 During controlled practice the driver must be present and his transmitter switched on for checking radio interference. 9.1.4. Practice heats at 1/10 Touring Car & 1/10 Touring Car 10.5T Spec. Brushless European Championships must not be longer than 6 minutes. Inbetween two heats there has to be a break of 3 minutes. 9.2 START PROCEDURE 9.2.1 There will be a minimum of seven (7) minutes between the starts of heats, (10) ten for 1/12th. 9.2.2 Qualifying heats: the delayed start procedure (Staggered Start) will be used and a verbal start signal, mentioning the car number, will be given for each car. Cars must start when directed by the Start Official. Cars not starting when directed may start after the last car has crossed the lap counting loop 9.2.3 Finals: After the 30 seconds signal, cars not on their start grid must be placed at the rear of the grid. An audible signal generated by the timing equipment will be given after the "ten seconds" in a random delay of between 1 and 5 seconds. 9.2.4 Jump-starts (after 10-second signal) -front wheels crossing start line or their marked startbox - 10-second penalty. Front wheels crossing the line or box by one-meter: 1 lap penalty. Jumpstarts are no reason for a re-start. 9.3 RESTART PROCEDURE 9.3.1 The Race Director or the Assistant Director, in absence of the race director, may order a restart. 9.3.2 In the event of an aborted start procedure; race must restart at least from the "30 seconds" before the start" announcement. 9.3.3 If the race is stopped before the first car has completed a full lap of the track then the race will be immediately re-started after the reason for the stoppage has been cleared. If the race is stopped after the first car has completed a full lap then the race will be re-run at a convenient time allowing for the recharging of batteries. 9.4 QUALIFYING 9.4.1 1/12 Track:- The Qualifying Heats and Finals will be 8 minutes and the last lap plus the time to complete this last lap up to a max of 40 seconds. The Round by 128 Appendix 3 9.4.2 Round point system will be used. This system awards points to all drivers based on their finish position against all others for each round individually. When the ´Round by Round´ qualifying method is used, the number of Qualifying Rounds to count are as follows :Number of Rounds completed 1 2 3 4 5 6 To count - 1/12 Void 1 2 2 2 3 If less than two Rounds are completed the event is declared null and void. Any Qualifying Round has to be completed for any Heats in that Round to be awarded points that count. Fastest competitor (based on laps & time) in each Round will score zero (0) points, second place 2 points, third place 3 points, fourth place 4 points and so on. If two (or more) competitors achieve an equal time in any Round they will be awarded equal points. The next competitor not included in the tie will be awarded points corresponding to his position in the particular Round. (NOTE: drivers not recording a time or having a time disqualified in any Round score points for last place in that Round). Overall Qualifying positions are decided by each drivers ‘best’ (lowest) points being added together, based on the number of Rounds to count as shown in above table. In the event of a tied position the driver with the single highest finishing position in either of the best Rounds that counted will be awarded the tie (eg. 1+3 = 4 beats 2+2 = 4). In the event of a continuing tie then the laps and times from the best points Round will be compared. The driver with the fastest laps and time will be awarded the tie. In the case of a continuing tie, then the times from the second best scores will be compared. Only counting Rounds will be used to decide Qualifying positions (or ties), all other Qualifying Round scores and times will be discarded If the intended maximum number of Rounds cannot be completed, due to weather or unforeseen circumstances, the number of Rounds to count will fol¬low the same format as the table above. 1/10 Off-Road:- The Qualifying Heats and Finals will be 5 minutes and the last lap plus the time to complete this last lap up to a max of 40 seconds. The Round by Round point system will be used. This system awards points to all drivers based on their finish position against all others for each round individually. When the ´Round by Round´ qualifying method is used, the number of Qualifying Rounds to count are as follows :Number of Rounds completed 1 2 3 4 5 To count :- 1/10 Off-Road Void 1 2 2 2 If less than two Rounds are completed the event is declared null and void. Any Qualifying Round has to be completed for any Heats in that Round to be awarded points that count. Fastest competitor (based on laps & time) in each Round will score zero (0) points, second place 2 points, third place 3 points, fourth place 4 points and so on. If two (or more) competitors achieve an equal time in any Round they will be awarded equal points. The next competitor not included in the tie will be awarded points corresponding to his position in the particular Round. (NOTE: drivers not recording a time or having a time disqualified in any Round score points for last place in that Round) Overall Qualifying positions are decided by each drivers ‘best’ (lowest) points being added together, based on the number of Rounds to count as shown in above 129 EFRA Handbook 2015 table. In the event of a tied position the driver with the single highest finishing position in either of the best Rounds that counted will be awarded the tie (eg. 1+3 = 4 beats 2+2 = 4). In the event of a continuing tie then the laps and times from the best points Round will be compared. The driver with the fastest laps and time will be awarded the tie. In the case of a continuing tie, then the times from the second best scores will be compared. Only counting Rounds will be used to decide Qualifying positions (or ties), all other Qualifying Round scores and times will be discarded If the intended maximum number of Rounds cannot be completed, due to weather or unforeseen circumstances, the number of Rounds to count will fol¬low the same format as the table above. 9.4.3 1/10 Touring Cars:- The Qualifying Heats and Finals will be 5 minutes and the last lap plus the time to complete this last lap up to a max of 40 seconds At the start of the event at Team Managers Meeting (on Friday morning) it will be decided if the Qualification Rounds will be declared dry or wet based on the weather conditions. 9.4.3a If Qualifying Rounds are declared to be dry, then the Round by Round point system will be used. The number of Rounds to count are as follows: Number of Rounds completed 1 2 3 4 5 To count:- 1/10 Touring Car Void 1 2 2 3 If less than two Rounds are completed the event is declared null and void. Any Qualifying Round has to be completed for any Heats in that Round to be awarded points that count. Fastest competitor (based on laps & time) in each Round will score zero (0) points, second place 2 points, third place 3 points, fourth place 4 points and so on. If two (or more) competitors achieve an equal time in any Round they will be awarded equal points. The next competitor not included in the tie will be awarded points corresponding to his position in the particular Round. (NOTE: drivers not recording a time or having a time disqualified in any Round score points for last place in that Round) Overall Qualifying positions are decided by each drivers ‘best’ (lowest) points being added together, based on the number of Rounds to count as shown in above table. In the event of a tied position the driver with the single highest finishing position in either of the best Rounds that counted will be awarded the tie (eg. 1+3 = 4 beats 2+2 = 4). In the event of a continuing tie then the laps and times from the best points Round will be compared. The driver with the fastest laps and time will be awarded the tie. In the case of a continuing tie, then the times from the second best scores will be compared. Only counting Rounds will be used to decide Qualifying positions (or ties), all other Qualifying Round scores and times will be discarded If the intended maximum number of Rounds cannot be completed, due to weather or unforeseen circumstances, the number of Rounds to count will fol¬low the same format as the table above. 9.4.3b If Qualifying Rounds are declared to be wet, then each competitors 2 fastest times will be added together to decide the Final Qualifying order. Any Qualifying Round has to be completed for the times of any Heats in that Round to be used. If it is impossible to complete all qualifying heats under the same weather conditions, (wet, semi wet or total dry) the following rule will become effective:- 130 Appendix 3 9.4.4 9.4.5 9.4.6 9.4.7 9.4.8 9.4.9 9.4.10 9.4.11 9.4.12 9.4.13 Before the start of every heat the race director has to announce if it will be a dry heat or a wet heat. The Race Director is also allowed to declare during a Heat, that the Heat is “now running under wet conditions”. After a Heat has been completed, the Race Director can declare that the specific Heat was run under wet conditions if he/she decides the average lap times during the heat (or part if the Heat) were more than 20% slower. If every Heat (Group) has at least one dry race in the Qualifying Rounds completed, then the 2 fastest times from all completed Rounds will be used. If any Heat (Group) does not have a dry race, then only the 2 fastest times from the wet Rounds will be used to decide the Final Qualifying order. If the Round by Round system is used:- Then any driver incurring a penalty which results in his time and therefore points in any Round being disallowed, then all drivers below the disallowed position will move up one place. (In the event the penalized driver is a tie on obtained points the one with the best time will be lost). The qualifying heats will be a maximum of 10 drivers and where possible equal number of drivers in each. Cars will start in one line across the track in staggered start mode for the qualifying heats. During the first round of qualifying, heat-starting order will be determined by the driver´s performance in controlled practice based on his 2 best consecutive laps during the last round of controlled practice. During further rounds, heatstarting order will be by the fastest time of drivers in the heat from any previous rounds results used for qualifying positions. This will apply whether the Fastest Time Qualifying System or Round by Round System is used. In order to give drivers an equal chance during qualification, organiser may reseed these drivers that are obviously way above or under the average in their group into a more suitable heat whenever possible. Off road heats will be run in the following sequence for the 5 qualifying rounds: Round 1: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 Round 2: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,1, 2, 3 Round 3: 7, 8, 9, 10, 11, 12, 13 1, 2, 3, 4, 5, 6 Round 4: 10, 11, 12, 13 1, 2, 3, 4, 5, 6, 7, 8, 9 Round 5: 13,12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1. On road heats will always be run from 1 to 15. If the number of Heats differs from the format detailed in 9.4.9, or if the event is planned with more/less Rounds, a sequence following this general theme has to be used. The qualifying results will determine the composition of all finals with the top 10 proceeding to the "A" final and so on down. Off road: One round of controlled practice using the official time keeping will be organized for the A finalists. On road: A controlled practice will be applicable to all finals. Qualifying results will be published after each round 131 EFRA Handbook 2015 1.-10. 11.-20. 21.-30. 31.-40. Final A 3 times, best two will be counted Final B 3 times, best two will be counted Final C 3 times, best two will be counted Final D 3 times, best two will be counted and so on 10FINALS 10.1 There will be 10 drivers in all finals where possible. Finals will be organized for all competitors. 10.1.1 If the lowest Sub-Final has less than 4 drivers, they will be mixed as equally as possible in the next Sub-Final, respecting their qualifying position for their start order 10.2 The winner determined from the combined A finals will be the champion. If the A finals cannot be completed, the awards will be made based on the final Qualifying positions. 10.3 Off Road: The “A” final will be run in three legs. All other Finals will be one leg. Each race of the main "A" final will be considered a separate race. The finals will be run from slow to fast with the 3 legs of the "A" final in between. On Road: All finals will be run in 3 legs from slow to fast. 10.4 If three leg finals are run, then the best 2 out of 3 to count. 10.5 The winner of a final gets 1 point; the second gets 2 points and so on up to 10 points for the 10th driver. In the event of a tie regarding time in a Final, the points will be equally awarded to each driver and the next driver not tying will be two points more. 10.6 In the event of a tied position the driver with the single highest finishing position in either of the best 2 finals that counted will be awarded the tie. In the event of a continuing tie then the laps and times from the highest finishing position will be compared. The driver with the fastest laps and time total will be awarded the tie. In the case of a continuing tie, then the times from the second best position will be compared. When some drivers of a final do not run a final, they will be awarded the remaining points n the order of their car numbers. 132 Appendix 3 10.7 10.8 10.9 11. 11.1 11.2 11.3 11.4 11.5 11.6 12. 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 12.9 12.10 12.11 12.12 Cars, which do not pass the start/finish line after the prescribed race time, will be classified according to the number of laps recorded. The "A" finalist with the lowest number of points will be the European Champion or the winner of the grand prix. All final results will be published at least 10 minutes before prize giving. There will be awards at least for all "A" finalists, and the winners of any other final. If no round of Final(s) are completed the results of the event are taken on qualifying positions. TECHNICAL INSPECTION All cars may be called for technical inspection at any time but must always be presented for scrutinizing. (11.4 remains in force). Failure to meet the technical rules will result in loss of the concerned heat result. Non-compliance obviously resulting from race incidents will not be accounted for at scrutinising After "A" finals the cars must be collected and impounded by organiser's staff ("park fermée"). The motors of the top 3 finishers may be dismantled in order to check their conformity with the rules. It is allowed to change the chassis of the car, providing the replacement is of the same design, spefications and material as the original item that was registered prior to the start of racing. The new chassis has to be registered and presented to the authority. GENERAL REQUIREMENTS FOR COMPETITION CARS IN ELECTRIC CLASSES Cars must be realistic and when initially entered in the meeting have neatly finished and complete body shells. Open cockpit cars must have a realistic driver figure fitted in an appropriate position at all times when racing. This consists of at least a driver's head/helmet and should be painted in a realistic appearance, colour and garb. The body and chassis must be securely joined at all times when the car is on the track. Driving on the track without body is not to be allowed at any time. All cars shall have identifying numbers in at least three positions, right, left and on front of the car. The numbers must be put on the body shell so the numbers are easy seen by the referee or race director. No car shall be constructed so as to be dangerous or damage the track surface or other competitor's cars. The cars must allow fitting a time keeping transponder in a suitable position with the correct orientation. Any type of speed controller, not causing interference's of any kind to lapcount, computers, transmitters etc., may be used, but it must be contained within the car and not protrude through the body shell. All cars must have a transparent windscreen. Open or painted windscreens are not allowed except for models of prototypes that did not have windscreens. Side or rear windows must be clear. The driver may have his name on the side window in the same scale as the car. Openings in the body must be appropriate to the full size prototype (Scoops, vents etc.). Wheel arches must be cut out if the prototype ran that way. Tyres must be black except sidewall detailing. 133 EFRA Handbook 2015 12.13 12.14 12.15 12.16 12.17 12.18 12.19 134 Openings for wing mount or antenna shall provide no more than 10 mm clearance. Definition of a wing: A wing is an additional item attached to the car. Definition of a Spoiler: A spoiler is that which is moulded in the body. Spoiler and side dam dimensions include that which is moulded into the body. Bumpers are not required. If fitted, bumpers must be constructed so as to minimise injury that may result from being hit by a car. The overall width may not exceed the overall width of the front of the car, including wheels. Wire bumpers shall be made of wire between 2.5 mm and 4 mm in diameter. Bumpers made from sheet type material shall be between 2.5 mm and 6.5 mm thick, with all exposed edges smooth and well rounded. Closed cell foam (i.e Pu-RIM) bumpers may be 2cm thick Rigid blade-like bumpers made of hard, non-resilient material such as metal, brittle plastic, plywood, masonite etc., are not allowed. All weight minima are applicable to cars equipped with fixed personal transponder as well as for those using (hand-out) auto-powered transponders. The later are to match the minima including transponder.(whatever the type) Appendix 3 B REQUIREMENTS FOR ELECTRIC ON ROAD CLASSES 1.GENERALITIES 1.1 On carpet tracks a minimum ground clearance of 3mm (excluding spur gear) for 1/12 and 5mm for 1/10 is mandatory at the start of each heat and final. 1.2 Up to a maximum of two chassis may be submitted to Technical inspection, either of these chassis may be used at any time during the event. The second chassis may be approved after the event has started. 2.BODIES: 2.1 Any newly homologated bodies must have the part number moulded into the front windscreen. 2.2 Body cannot be trimmed higher than lower body trim lines. 2.3 No portion of chassis, wheels and tyres, or equipment may extend beyond body except to the rear. (Exception -Formula car suspension chassis and abbreviated bodies with no engine cover). 2.4 No more than 1.5 mm of wheel outside diameter may be exposed on the outside of the wheel (i.e. not covered by the tyre). If wheel discs are used they should be secured by a screw or clip. 2.5 In all classes where possible, an 8th scale number must in addition be placed on the roof of the body (NASCAR style) for absolute best identification. Numbers on front windscreens must be avoided 2.6 The organizers will supply the numbers. 3. ROLL-OVER MASTS: 3.1 A rollover mast may be fitted. If so, it must have a blunt end for safety reasons, terminate in a closed loop at least 4.75 mm O.D. or a ball or button not less than 8 mm in diameter. 3.2 If a rollover mast and radio antenna is fitted, the antenna must be part of the mast along its length. Max. Height from ground 35 cm. 4. BUMPERS 4.1 All cars may run a rear bumper, which must be behind rear tyres. 4.2 If used, front bumpers must be flat; parallel to the ground in all directions. 5. TYRE ADDITIVES / TRACTION IMPROVING TREATMENTS: 5.1 All Tyre treatments, governed by health, nuisance and track damage considerations will be at the discretion of the organisers and EFRA. I.e. Normally only odourless tyre cleaners or traction additives will be allowed. 5.2 It is down to the organiser / section chairman to specify the additive to be used at an event. (1/12 scale only) A list of legal additives will be maintained by the section chairman and published at least 1 month prior to each event. Only tyre additives on the published list may be used. New additives may be added during a season, subject to approval by the section chairman. The use of tyre treatments is the user’s responsibility. EFRA draw organiser’s attention to the possible hazard created by large numbers of competitors using tyre treatments in a confined space. EFRA recommend that the competitor adheres to the methods of usage as stated by the supplier of the treatment. 5.4 European Championships: A list of allowed substances or products will be published with the entry form. 5.5 It is recommended that the chemical components of these products must be harmless for people and environment. Liability at the use of tyre additives lies at the user and manufacturer. 135 EFRA Handbook 2015 6. PARTICULAR TO 1/12th SPORTS CARS 6.1BODIES: 6.1.1 Body shells must be submitted to the EFRA Body shell Homologation Officer for approval. A list of homologated bodies must be sent with the drivers package and to the organisers and be available on the EFRA website. The following is the specification for approval of 1/12 Prototype Sports car body shells. They should be used by the Homologation officer to enable clear and consistent application of standards for future approvals, Lower body cut line is to be used as the reference plane for all height dimensions. Minimum cockpit height – Closed cockpit – 55mm (Excluding any air scoops / air boxes) Minimum cockpit width – Closed cockpit – 70mm (Measured at the point it intersects with the side pod) Minimum cockpit width - 55mm (measured at the lower window line) Minimum Roll bar height – Open cockpit – 55mm Maximum distance from Drivers helmet to top of roll bar – Open cockpit -11mm Minimum cockpit width – Open cockpit – 65mm (Measured at the point it intersects with the side pod) Minimum front wheel arch height – 46mm (Including vents) (measured at a point 15mm from edge of body) Minimum rear wheel arch height – 50mm (measured at a point 10mm from edge of body) Maximum overall width – 174mm Minimum overall width – 168mm Max. wing / spoiler height – 65mm Max. front overhang (From centre of front wheel)– 70mm Max. rear overhang (from centre of rear wheel) – 70mm Max. length overall – 340mm Minimum side pod height – 30mm The side dam must blend fully (disappear) into the main body shape within 110mm of the rear edge of the body/side dam. Max side dam height – 72mm The body side forward of the side dam must have a radiused edge, no lips or upward extensions are acceptable Bodies must be a reasonable representation of a full size LMES / ALMS / LMP / WSC prototype. Open cockpit cars to have twin roll bars as current LMES / ALMS Open cockpit cars must have a representative drivers helmet and cockpit opening The name of the prototype must be used for the homologation process. The name of the prototype does not have to be used for general sales and marketing. Only fins or strakes that are present on the full size prototype will be allowed. The body must not be cut above the lower cut line Cut-outs in the shell will be allowed only if clearly defined on the full size prototype Once Homologated there must be no changes to the design, trim lines, detail lines or any feature of the body. All changes will require resubmission for approval and an additional revision letter added to the part number- Example 15001A Original - 15001B for a 2ndRev. Etc The manufacturer’s par number must be clearly marked on the shell alongside the windscreen area 136 Appendix 3 6.1.2 6.1.3 6.2 Bodies complying to the existing homologation will be allowed until Oct 1st 2010. All new homologation must meet the above criteria. Wheel cut-outs may not be more than 15 mm larger than tyre radius (Exception - scale size and/or shape wheel cut-outs). Wheel wells must be cut out if those on the original car were cut out. Only one wing is allowed on the car unless the actual car had a second wing. The second wing must be scale within 10% in size and location. The wing may be not closer than 6.5 mm to any part of the body other than the tail fins or side dams. MEASUREMENTS AND WEIGHTS Maximum overall width of the car: 172 mm (Excluding shell) Minimum weight: 730 grams. Wing: Maximum width: 172 mm, the wing profile has to fit in a rectangle of 52 mm (height) x 26 mm Spoilers: Max. Spoiler height: 25 mm, max length 35 mm. These dimensions include the moulded in portions of the body, the use of a gurney flap to extend the wing length is acceptable. 137 EFRA Handbook 2015 Bumper: May extend 6.5 mm beyond side of body or to 172 mm whichever is less. May extend 13 mm forward of body, but in same shape as body. Wheel rim diameter: Minimum 29 mm and Maximum 38 mm. (Including all non-rubber parts of the wheel and tyre). Wheel nuts and/ or axles must not protrude more than 1.5 mm beyond the wheel/tyre outside face. 6.3TYRES 6.3.1 All tyre sizes apply at the start of the race. 6.3.2 Tyres Minimum width 13 mm. Maximum width 40 mm. The tyre width is measured at the widest part of the tread or sidewall. 6.3.3 Any tyre diameters will be allowed. The diameter must be maintained over at least the minimum width of the tyre. 6.3.4 Tyres must not be wet or greasy from additive at the start of a heat or final. 6.3.5 Technical Inspection can demand to check the tyres prior to each start 7. PARTICULAR TO 1:10 ELECTRIC SALOON CARS 7.1BODIES: 7.1.1 Only bodies that comply to the body guideline for 1:10 electric touring car bodies as per drawings in this handbook of real touring cars that have a minimum length of 4200mm in the original car are allowed. No GT or Sports car bodies allowed. All Touring car bodyshells to be submitted to the EFRA Bodyshell Homologation officer for approval. 7.1.2 The rear bumper cut-line to be maximum 35 mm from track surface, as detailed in GBS drawings. This will be measured with the chassis on a 15.0 mm block, so based on a 5 mm ground clearance the dimension used will be 45.0 mm. 7.1.3 A wing may be fitted to the rear of the body but not on the roof or above the roofline. 7.1.4 The wing may overhang the rear of the body of the car by 10 mm. 7.2 MEASUREMENTS AND WEIGHTS (NOTE: Heights measured with chassis on 15.0 mm block, based on 5 mm ground-clearance) Maximum overall width (with body) 195 mm Maximum overall width (without body) 190 mm Minimum height (to top of the roof ) 115 mm (ready to run) with chassis on 15mm block 125 mm (ready to run) Rear bumper ‘cut-line’ height (with chassis on 15 mm block) 45 mm (maximum) Maximum wheelbase 270 mm Minimum weight 1350 gram Wing: maximum width 190 mm. Wing: chord dimension (inc. any extensions) 40 mm. (max.) Wing end-plates/side-plates 20 mm (height) max. x 40mm. max. Maximum wheel rim diameter (excl. ribs) 50 mm Wheel nuts and/or axles must not protrude more than 2.0 mm beyond the wheel/ tyre outside face. The use of multiple-speed transmissions (gearboxes) and slipper clutches is not allowed. 138 Appendix 3 All cars must have independent suspension operating on all four wheels (no PRO 10 cars allowed). Only a fixed single ratio transmission is allowed and it may not include a mechanical device/s between the drive motor output and the gearbox input for the purposes of controlling torque (e.g. slipper clutches). 7.3TYRES 7.3.1. Only moulded tyres are allowed (no sponge tyres). Maximum tyre width 28 mm Minimum tyre width 24 mm 7.3.2. At EC´s it is only allowed to use the tyres that were agreed by the section meeting at the EFRA AGM together with the race organiser (race organiser will make their recommendation). For dry weather racing there will be a single control slick tyre with insert and will come pre-glued to the wheel (insert, tyre and wheel to be same for all drivers) and commercially available via model/hobby shops. For wet/ damp conditions there will also be a pre-glued control set of tyres. For use at the EC, the tyres must be bought from the organiser. For each competitor there must be at least 1 set of dry and wet weather tyres available to be bought for practice at the EC. Price fixed for each EC event at 60.- E for 3 dry weather sets, this price only for tires used at event. 7.3.3. 2 sets of 4 dry weather tyres are allowed for qualifying, and 1 additional set of 4 dry weather tyres is allowed for finals. Tyres from qualifying may be used in the finals. 1 set of 4 wet weather tyres is allowed to be used for both qualifying and finals. 7.3.4. Tyres from qualifying may be used in the finals 7.3.5. For wet/damp conditions a treaded tyre may be used but only when the Race Director gives his permission. This treaded wet tyre does not form part of the limited number of sets. 139 EFRA Handbook 2015 To assist competitors maintain consistent heights when using different wheels/ tyres, dimensions R and S will be measured with the chassis on a 15.0 mm block. Dimensions will be based on a 5 mm ground-clearance and will therefore be :- R = 125 mm, S = 45 mm. 140 Appendix 3 7.3.6. Tyres/wheels may not be modified. Changing of tires between drivers is not allowed. Drivers must have their wheels and tyres marked by Technical Inspection and this marking can be done at any time. 7.3.7. The Technical Inspector must mark wheels/tyres before being presented to Technical Inspection for qualifying heats and finals. 7.3.8. Unmarked wheels/tyres may not be used on the car during qualifying heats and finals but are allowed for practice. 7.3.9. Technical Inspection shall be responsible for recording the number of tyres used by each driver. 7.3.10. No extra sets are allowed for a re-run of a heat. 7.3.11. All set of tyres for qualification have to be returned by the driver by the end of each qualification day to the organizer (tyre impound). Not returning the tyres in the announced time by the organizer will be punished with the lost of the best heat. The not returned set of tyres have to be checked and released for further use by the technical inspection. 7.4. 1/10 Touring Cars 10.5T Spec. Brushless 7.4.1. Only 10.5T Spec Brushless motors according to App. 3A 2.2 are allowed . 141 EFRA Handbook 2015 C PARTICULARS for 1/10 OFF ROAD 1.GENERALITIES: 1.1 Cars entered for off-road competitions should be reasonable representations of the style of full size cars generally accepted as being suitable for rally-cross, rallying or desert racing. 1.2 There are two classes of cars: 2WD and 4WD. Both must be run and drivers are allowed to enter both classes. 1.3 All open gears must be enclosed or protected so as to prevent injuries. 1.4 Any modification to the car is allowed. 1.5 A differential may include a mechanism for apportioning torque over the axle/s (e.g. limited slip differential). This mechanism must only be capable of adjustment manually whilst the car is stationary 2 MEASUREMENTS AND WEIGHTS: Maximum overall length: 460 mm Maximum overall width: 250 mm (At any point of suspension travel) Maximum overall height: 200 mm (to be measured with the suspension fully compressed) Minimum weight 2WD cars: 1.474 gram Minimum weight 4WD cars: 1.588 gram A maximum of two (2) wings can be used, one at the front and one at the rear of the car: Maximum size of Front Wing: 127.0 mm wide with chord 63.5 mm. max. Maximum size of Rear Wing; 177.8 mm wide with chord 76.2 mm max. Maximum size of Wing side-dam: Height 50 mm, length 100 mm Maximum overall diameter of wheel & tyre: 90 mm 61.47 Max. Wheel sizes: 55.88 Max. 41.28 Min. Min bead mounting diameter: 41,28 mm Max bead mounting diameter: 55,88 mm Bead mounting dimensions are measured at the 38.1 Max. point where the internal tyre bead meets the wheel. Max wheel diameter: 61,47 mm Max wheel width: 38,10 mm Wheel width is measured at the circumference of the wheel where the tyre is retained, the centre of the wheel maybe outside this dimension. ‘Venting’ holes in the internal rim of the wheel are allowed – maximum of two (2) holes, of maximum 6.0 mm diameter. Measuring equipment for width, length and height should be constructed preferably from metal or alternatively high quality board. The materials will be of suitable thickness to eliminate any distortion. Design of the equipment to allow all points of the car to be measured. 142 Appendix 3 3 3.1 3.2 3.3 3.4 3.5 3.6 4 4.1 4.2 4.3 TYRES Grand Prix: Any combination of commercially available 1/10th scale wheels and tyres may be used. European Championships: The organizer will propose 1 type of tyre for each of the driven axles for 2WD and 4WD (2WD and 4WD do not have to be the same type of tyre). The manufacturer and full description of the tyres chosen must be given, but there remains free choice of compound. The proposed tyre choice will be ratified at the EFRA section AGM prior to the EC and provided always that the chosen tyres are commercially available throughout the EFRA Nations. The manufacturer(s) of the chosen tyres will be notified which specific tyre has been chosen as soon as the decision is finalised. Valid from 2016: European Championships: The organizer will propose 1 type of tyre for each of the driven axles for 2WD and 4WD. The manufacturer and full description of the tyres chosen must be given, compound and inserts will be controlled, and will only available in a restricted area and should be sold to the driver by the organiser and if possible at a lower price. The proposed tyre choice will be ratified at the EFRA section AGM prior to the EC and provided always that the chosen tyres are commercially available throughout the EFRA Nations. The manufacturer(s) of the chosen tyres will be notified which specific tyre has been chosen as soon as the decision is finalised. Rule applies from 2016 onwards No metal or hard plastic may be used for spikes Modifications to tyre tread patterns and 'location beads' are allowed by trimming or removal, but the addition of any material is prohibited excepting the glue used to retain the tyre to the wheel. ´Cut and Shut´ is permitted at Grand Prix only and even so if the parts of one or more different tyres are glued together, provided always that the constituent parts are all recognisable as coming from commercially available 1/10th scale tyres. No sponge or foam tyres are allowed except for foam inserts completely enclosed within the sidewalls. No tyre additives other than water are allowed, inside or outside of any tyre. Excess of glue deemed to alter the performance of the tyre is not allowed. RAIN PROCEDURE for QUALIFYING The Race Director and the Referees are jointly responsible for the decision to stop racing in the event of adverse weather conditions. If in doubt or they do not agree they can consult the EFRA rep. or his deputy ( if at the meeting ) for advice. When Racing is suspended as per the rule above, then racing will recommence, when weather permits, with the heat that was next to be run prior to the interruption. If the serie of heats / round cannot be completed the same day that particulair round will be cancelled and next day will start with a new (complete) round. Every effort should be made by the Race Director / organizing club to make necessary repairs to the racing surface prior to recommencement of racing to give the racers in the next heats an more or less equal chance to qualify compared to the heats raced before the meeting was stopped. If that is not possible racing should be re-started with the next qualifying round. 143 EFRA Handbook 2015 5 144 Body shell holes/vents: The front and rear ends of the shell must retain some of the original profile of the two ends of the shell. Front and rear facing areas within the body shell surface which are ´marked´ with the intention of removal to form ”air scoops/ vents“ are allowed to be removed, within a maximum dimension of 10mm in any direction regardless of the manufacturers marking. If no ”marked“ air scoops/vents are designed in the original mould to assist airflow to the motor or ESC, then material may be removed to a maximum of 10 mm. in any direction within a maximum square area of developed size 30 mm x 30 mm, in two places only. Windows are not allowed to be removed or include holes, other than for the purpose of the antenna.