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  Radio controlled model car racing, as a recognised sport, needs rules to provide boundaries for what is and, more importantly, what is not allowed.

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Section Contents
  IFMAR Large Scale World Championship 2001
Below are the rules for the 2001 Large Scale World Championships
As this is a rather large document it has been split into two pages. Page Two
  Links to the Various Sections
1. PLEASE REFER TO GENERAL RULES FOR IFMAR W.C.
2. RACING FORMAT
3. TRACK SPECIFICATIONS
4. RACE PROCEDURES
5. TECHNICAL SPECIFICATIONS
2. RACING FORMAT
  2.1 SCHEDULE
The World Championship will be run over a period of eight (8) days. The schedule for the event must be submitted to IFMAR for approval.
  2.2 FREE PRACTICE
Free practice will start on Saturday. The track will be opened from 08.00 until 19.00. The organiser may not allow competitors to practice before Saturday or at extended hours.
Free practice schedule will not normally be changed but may be if, because of unforeseen circumstances, the Team Managers' Committee votes to do so with approval from the International Jury.
  2.3 REGISTRATION
Sunday from 08.00 to 18.00 and Monday from 08.00 to 18.00. Final deadline for registration: Monday 18.00. IFMAR may authorise later registration at its discretion.
When registration of drivers is carried out, each driver will sign a form which states that he accepts, and will abide by, the published rules of the event.
  2.4 DRIVERS & TEAM MANAGERS MEETINGS
2.4.1 Any drivers briefings are to be held at the Organiser's discretion when all drivers must attend.
2.4.2 A Team Managers' Meeting before the start of the first round of qualifying heats is compulsory. All Team Managers must attend. They must be able to understand and speak English.
2.4.3 Further Team Managers' Meetings are recommended but are called only by the most senior IFMAR officer at the track or, in his absence, by the Race Director.
  2.5 TECHNICAL INSPECTION
Technical Inspection will be held on Sunday and Monday from 08.00 until 18.30 in provisional heat order. Drivers or mechanics have to present their cars with bodies, empty tanks, a bottle of fuel and transmitters.
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  2.6 CONTROLLED PRACTICE
All drivers will have the chance to participate in frequency controlled practice on Sunday. There will be timed practice for drivers in their published heats on Monday, ten (10) minute practice heats beginning at 08.30. Information from that controlled practice may be used for re-seeding the heats on Monday evening. The Team Managers will be informed if any changes to the heats are made.
  2.7 OPENING CEREMONY
An Opening Ceremony will take place on Monday. The time must be published in the time schedule. Competitors will participate in a welcoming procession. Each national team is asked to wear similar shirts. A flag and sign bearing the name of each country will be provided by the organiser for each team.
  2.8 QUALIFYING HEATS
There will be six (6) qualifying rounds of ten (10) minutes for each entrant. The entrants will be divided into two (2) groups: Group A - Heats 1 to 7, Group B - Heats 8 to 15.
Six (6) rounds of qualifying heats will be run as follows:
Tuesday - Rounds 1 and 2
Group A   Group B
HEAT ROUND 1 ROUND 2   HEAT ROUND 1 ROUND 2
1 9.30 11.15   8 13.45 15.45
2 9.45 11.30   9 14.00 16.00
3 10.00 11.45   10 14.15 16.15
4 10.15 12.00   11 14.30 16.30
5 10.30 12.15   12 14.45 16.45
6 10.45 12.30   13 15.00 17.00
7 11.00 12.45   14 15.15 17.15
        15 15.30 17.30
Wednesday - Rounds 3 and 4
Group B   Group A
HEAT ROUND 3 ROUND 4   HEAT ROUND 3 ROUND 4
1 9.30 11.15   8 13.45 15.45
2 9.45 11.30   9 14.00 16.00
3 10.00 11.45   10 14.15 16.15
4 10.15 12.00   11 14.30 16.30
5 10.30 12.15   12 14.45 16.45
6 10.45 12.30   13 15.00 17.00
7 11.00 12.45   14 15.15 17.15
        15 15.30 17.30
Thursday - Rounds 5 and 6
Group A   Group B
HEAT ROUND 5 ROUND 6   HEAT ROUND 5 ROUND 6
1 9.30 14.30   8 11.30 17.15
2 9.45 14.15   9 11.45 17.00
3 10.00 14.00   10 12.00 16.45
4 10.15 13.45   11 12.15 16.30
5 10.30 13.30   12 12.30 16.15
6 10.45 13.15   13 12.45 16.00
7 11.00 13.30   14 13.00 15.45
        15 13.15 15.30
This schedule assumes 150 drivers, with ten cars per heat. IFMAR may allow 15 car heats if track and rostrum conditions allow.
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  2.9 FINALS
All sub-finals and final consist of ten (10) drivers or if IFMAR approval is granted, up to a maximum of twenty (20) if the track and facilities permit. The number of finalists must be published in the Stage II Report.
'Christmas Tree' System for 150 entries (10 drivers)
FINAL EVEN NUMBERS ODD NUMBERS
1/1024 150 - 132 * 149 - 131 *
1/512 130 - 118 * 129 - 117 *
1/256 116 - 106 * 115 - 103 *
1/128 102 - 90 * 101 - 89 *
1/64 88 - 76 * 87 - 75 *
1/32 74 - 62 * 73 - 61 *
1/l6 60 - 48 * 59 - 47 *
1/8 46 - 34 * 45 - 33 *
1/4 32 - 20 31 - 19 **
1/2 18 - 6 17 - 5 **
* First three go forward. Duration 20 minutes.
** First two go to final; then the next two fastest from either semi-final go to final. Duration 30 minutes.
 
Friday
Lower finals from 1/1024 to 1/8 to be run over 20 minutes.
FINAL EVEN NUMBERS ODD NUMBERS
1/1024 Starts at 8.00 Starts at 8.30
1/512 Starts at 9.00 Starts at 9.30
1/256 Starts at 10.00 Starts at 10.30
1/128 Starts at 11.00 Starts at 11.30
Lunch break from 12.00 to 13.30
FINAL EVEN NUMBERS ODD NUMBERS
1/64 Starts at 13.30 Starts at 14.00
1/32 Starts at 14.30 Starts at 15.00
1/16 Starts at 15.30 Starts at 16.00
1/8 Starts at 16.30 Starts at 17.00
 
Saturday
1/4 finals to be run over 30 minutes.
FINAL EVEN NUMBERS ODD NUMBERS
1/4 Starts at 10.00 Starts at 10.45
Practice for direct qualified finalists from 11.30 to 12.00
Lunch break from 12.00 to 13.00
1/2 finals to be run over 30 minutes.
FINAL EVEN NUMBERS ODD NUMBERS
1/2 starts at 13.00 starts at 13.45
CHAMPIONSHIP FINAL TO BE RUN OVER TWO (2) THIRTY (30) MINUTE RACES
(Ten (10) minutes refuelling/charging batteries break. No request for delay for any reason before start of race 2).
 15.00 Drivers' presentation to the public
 15.15 Warm-up Practice
 15.28 Trial start
 15.30 Start
 16.40 End of the race
 16.50 Unofficial publication of result
 17.10 End of protest time
 17.20 Prize ceremony on the track
 
Sunday
To be used as spare day to allow for any delay in schedule. Banquet and Awards' Presentation to be held on Sunday night. At the conclusion of the Banquet and Awards' presentation, Team Managers will be given a result folder showing the qualification results and the final positions, as a closing report.
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  2.10 RAIN SITUATION
In case of different weather conditions during sub-finals the final classification will be as follows: Place 4 of sub-final A and Place 4 of sub-final B will both be awarded place 11th equal in the general classification. Place 5 of sub-final A and place 5 of sub-final B will both be awarded place 13th equal in the general classification ..... and so on.
  2.11 RACE INTERRUPTIONS
-1 In the case of a race which is interrupted for more than sixty (60) minutes for reasons beyond the control of the organiser, the Jury will decide whether to cancel or continue the meeting.
-2 In the case of an interruption of a heat the entire heat will be re-run.
-3 In the case of an interruption of sub-final or a final the following procedure will be used:
A. If less than 10 minutes of a final has been run, the results will be cancelled and a new start given for the total time of the final. Vehicles may be repaired before the new start.
B. If more than 10 minutes of the final have been run, the results at the moment of the interruption will be kept. The new start will be given for the time which remains to complete the final. The two results will be added to give the final and definitive placing. If the second start cannot be made for any reason, the results from the first part will be used as the final and definitive placing.
C. When the interruption takes place after 75% or more of the race is past, the results as at the time of the interruption becomes the final result. At the moment of the interruption of the race, the drivers will leave their vehicles on the start-line under the control of the Race Director. They may switch off the radio and stop the engine. There will be no repairs carried out to the vehicle or changing of tyres. Any driver who does not observe this rule will be immediately disqualified.
  2.12 RAIN PROCEDURE DURING QUALIFYING
-1 The Race Director and the Referees are jointly responsible for the decision to stop a race in the event of rain.
-2 On the result sheets the Race Director or the appointed official must mark a heat "WET" when the heat was raced under wet conditions. On the corresponding record sheets, this must also be marked. The Race Director together with the Referees will decide in case of doubt. Heats are generally considered to be "WET2" when average lap times are approximately 20% slower than before, due to rain or moisture on the track.
-3 When all drivers have had at least one dry heat, all results will be counted.
-4 When weather and time permits, with intention of equalising opportunity, the Race Director may decide to schedule or re-schedule qualification heats to allow those affected by wet conditions to participate in dry conditions.
-5 When not all drivers have had a chance to run a dry heat, only the wet results will be counted.
-6 When continuation is judged to be senseless, or when other drivers should be offered a fair chance to drive under dry conditions, the Race Director together with the Referees may decide to end a heat or cancel a complete heat (2.11 -1).
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2.13 MATERIAL PROVIDED
  2.13.1 RACE PACKAGE
During registration, every driver will be given an envelope which includes:
A detailed schedule including starting times of each heat
3 sets of numbers for the car (each number to measure 7 cm/2.75 in. wide x 9.50 cm/3.74 in. high)
3 sets of numbers for the wing
1 number for the transmitter
1 badge for the driver, 2 badges for the mechanics and 1 badge for the country's Team Manager will be issued.
  2.13.2 NUMBERING OF CARS
Cars will be numbered 1 to 10 in each heat.
Each car must have 3 numbers: - one on the motor-hood, one on the right front door and one on the left front door.
It is not allowed to place them on windscreen or front side windows.
These numbers may change after timed practice (re-seeding).
The organiser will provide other numbers for altered heats and for sub-finals and final. Drivers must use numbers provided by the organiser with no modifications.
  2.13.3 NUMBERING OF THE BODY/WING
The competitor's number is put on the body/wing. It is the same for the entire competition.
The first or the first two digits indicate the heat number.
The last digit is the car number (i.e. number 12 means heat 1, car 2).
The numbers provided by the organiser must be attached to the right side of the body/wing, the other side being reserved for the competitor's national flag. Every competitor must have his national flag on the left side of the body/wing of his car (when looking from the rear).
  2.13.4 NUMBERING OF TRANSMITTERS
Every transmitter will have the competitor's number on it (The same number as on the wing).
2.14 BADGES
  2.14.1 Drivers, Mechanics & Team Managers
Three badges will be given to each competitor, blue for the driver, yellow for the mechanics. The designated Team Manager from each country will receive an orange badge upon registration of his drivers (see Rule 4.17).
  2.14.2 ACCESS TO PITS AND TRACK
Orange badges/Team Managers - pits, staging area, special viewing area
Blue badges/drivers - drivers' stand, pits, staging area
Yellow badges/mechanics - pits, staging area
Green badges/Press - pits, staging area, special viewing area
Red badges/race officials - all areas
Grey badges/IFMAR officials - all areas
  2.15 PITS
Places are allocated for the duration of the World Championship. Places are grouped by country and marked by sign plates. Pits are covered. Every competitor will have a 90 x 150 cm (3 x 5 feet) table space. Pits are equipped with either 120 V/60 or 220 V/50 AC. Limited quantity of transformers will be available.
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2.16 TRANSMITTERS
  2.16.1 TRANSMITTER IMPOUND
Transmitter impound will start on Tuesday. All transmitters must be placed in impound upon arrival at the track.
Transmitters will be furnished to each competitor after completion of technical inspection and prior to their heat. All transmitters must be returned to impound following their heat. Transmitters in the pit area, or areas other than the drivers' stand and impound, during official competition hours, will cause disqualification.
  2.16.2 TRANSMITTER INSPECTION
All transmitters must be tested and inspected prior to their use. A spectrum analyser will be used for radio inspection. All transmitters passing inspection will be identified and only these transmitters, thus identified, may be used in the event.
  2.16.3 TRANSMITTER MODIFICATIONS
Any extensions and/or additions to the antenna on a transmitter are forbidden. Any modifications of the power pack (higher voltage) are forbidden.
  2.17 LAP COUNTING AND TIMING
Automatic lap counting, with cumulative and split lap times, will be in place for each car. Competitors are required to install a small transponder into their cars according to the organiser's instructions.
An audio/video tape recording will be made.
Significant stops (tyre changes, crashes, etc.) will be notes with times of stop and restart. This record might not include every incident, however, its intent is to verify incidents, whenever possible.
AMB lap counting system or IFMAR approved equivalent must be used in duplicate.
A suitable working computer with proper race proven programmes must be provided to sort lap times, print results from heats and sort final positions from each round of heats within 15 minutes of the completion of the round of heats.
Chronometers must give time to 1/100th of a second, in all cases, the hundreds will be utilised. In the case of equal results, the following best heat will separate the competitors.
If both the primary and support lap counting systems fail during a qualifying heat or final, the heat or final will be re-run as soon as is practicable. Under no circumstances will any lap score or time, other than those from the official time keeping equipment, be accepted for any purpose to do with the running of an IFMAR race.
  2.18 Display & Distribution of the Results
The display of the positions in a specific heat or final will be done in the pits and in the Team Managers/Press stand.
At the end of each heat (every 15 minutes) or of the finals, a copy of each competitor's lap sheet will be available for checking and information. Copies of the time-lap sheets of all cars of the heat or the final will be displayed with the result.
At the end of each round, after the 15th heat, results of the general classification will be available.
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3. TRACK SPECIFICATIONS
  3.1 SURFACE
Track surface should be unsealed asphalt or coarse finished concrete with smooth joints, if any.
  3.2 LENGTH
The minimum length is 250 metres/820 feet. Advised is 300-350 metres/984 feet-1148 feet.
  3.3 WIDTH
The minimum width of the track is 4.5 metres/l5 feet between marking lines. The maximum width is 6.5 metres/ 21 feet. The marking lines must be 8-10 centimetres/3-4 inches wide.
  3.4 PODIUM
Maximum distance from the middle of the drivers' podium to the furthest point of the track is 60 metres/197 feet.
Minimum height of the drivers' podium is 2.5 metres/8 feet from track level and the podium is at least 10 metres/33 feet long. (10 Drivers)
  3.5 VISION
No obstacles may interrupt the vision from the drivers' podium to all parts of the track.
  3.6 MARKING
A broken line may be painted in the middle of the straight to increase the vision.
  3.7 PITS
The (refuelling) and pit area should be clearly distinct and separated from the main track and as close as possible to the drivers' podium. A fire-extinguisher is mandatory.
Exit from and entrance to the main track is advised to be on a slow section of the track. Drivers have to reduce speed while entering the pit area.
  3.8 DESIGN
Track design must include both right and left turns and must have a straight of minimum 60 metres/164 feet.
  3.9 OUTSIDE BARRIERS
Outside barriers must provide positive means of stopping a car when missing a corner or out of driver's control. The consideration at selection of the outside barriers shall be the protection of the spectators and not the cars, although, if both can be obtained, it is ideal. The outside barriers must be at least 40 centimetres/16 inches away from the marking lines of the track.
A solid fence of one (1) metre/3.30 feet in height must be placed behind the outside barriers made from a material to stop an out of control car.
  3.10 INSIDE BARRIERS
Inside barriers must avoid short-cutting of corners or cars getting on other parts of the track.
Inside barriers must be positioned and dimensioned to avoid cars flying over the outside barriers into the public.
Inside barriers must be smooth and must be 20 cm/8 inches away from the marking lines on the track.
  3.11 DOTS
No dots will be used on high speed sections.
  3.12 SURROUNDINGS
The inner and outer surroundings of the track must have grass or other suitable materials, such as concrete. The object of these surroundings is to slow down the car that leaves the track. The car must be able to leave the infield or outfield on its own to minimise marshal assistance.
  3.13 STARTING LINE
A starting line must be painted across the track, preferably in front of the time keeping. The starting line must be located more than 10 metres/33 feet away from the first corner.
  3.14 FORMULA 1 START
The grid will be painted on the track, preferably on the straight. Two (2) rows of numbered boxes will be located on the track with approximately 2.5 metres-3 metres/8.20 feet-9.84 feet space between each row.
On one (1) side, the boxes will be numbered 1, 3, 5 etc. and on the other side 2, 4, 6 etc.
No. 1 box is situated 3 metres/9.84 feet in front of No. 3;
No. 2 stands 3 metres/9.84 feet in front of No. 4 etc.
The boxes should have a width of 50 centimetres/19.68 inches.
Page Two
As this is a rather large document it has been split into two pages. Page Two
Further Information
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