APPENDIX 3
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.
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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.
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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
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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.
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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.
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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).
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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
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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
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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
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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:-
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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
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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.
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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.
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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.
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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.
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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.
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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
.
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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.
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