Please be advised that we have been requested to vacate the premises from the end of March 2020, with the last race meeting being 7 March 2020.

  • La Farge Mining SA (LMSA) have a huge mining contract and will be mining in the quarry from the end of March.

  • Please be advised that on the instruction of LMSA no-one will be allowed on the property after the 7 March.

  • Anyone entering or trying to enter will be dealt with by the security company and LMSA.

  • CMBC cannot and will not be held liable for anyone attempting to enter and disregarding our communication.

  • We trust that we will find temporary premises to accommodate us for this period of time.

Section 6

Competition requirements

  • General construction rules and regulations

    1. A hull has no construction rules, however it must, in form & shape look like a boat.

    2. All model engines must have full throttle control.

    3. The size of the fuel tank is not restricted.

    4. Every model must have on the deck a longitudinal mounted number plate, made out of a flexible, durable material such as poly carb, plexi glass or Perspex.

    5. It is strongly recommended that race numbers must be visible from both sides of the boat without exhaust pipes etc., obscuring vision to the numbers on both sides. (See drawing below).

      • The number plate for the F1 boats must display a bold black number on a white background, and must be mounted on both sides of the cowling.

      • The dimensions of number plates for classes Offshore/Hydro rigger are as follows.

      • Number boards on riggers will be 80mm high by 100mm wide, with 60mm letters, mounted on the side or on top of tub.

      • Number boards on all other gas-class hulls will be 100mm high by 120mm wide, with 80mm letters, mounted on the top of hull to provide 100% visibility from the race control tower.

    6. These rulings have not been enforced in recent years but they are now ‘HARD AND FAST’ rules which have to be adhered to prior to participation on race day.

    7. The organizers will provide one powered rescue boat, which will only be allowed onto the water after a heat has been completed or at the sole discretion of the judge. The general rule for rescue boat responsibility is the pilot of the first boat to need rescuing, accompanied by a helper.

    8. The crew of the rescue boats are encouraged to wear life jackets which are available from race control. However, it is everyone’s own responsibility and therefore your own prerogative to wear the jackets.

    9. During the race nobody is allowed in the racing water. Competitors not obeying this rule will be disqualified. During the race your boat may be recovered from the side but may not re-enter the race.


  • Procedures for races in the Offshore / Hydroplane / Outrigger / F1 classes

    1. Before the start of each set of heats a radio check has to be carried out to determine if the pilot’s radio equipment is working properly with no interference. After the check, no protest will be entertained.

    2. Each race consists of three independent phases:

      • Preparation time (Hot-Pit time): 5 minutes

      • Milling time: 2 minutes

      • Course time (Race time) : As defined in Section 3: Heat duration and course design

    3. During preparation time all boats must be in the hot-pit area. Pilots may work on their models, start and warm-up the engine, but NO boats may be launched.

    4. Boats may be recovered and re-launched during the milling time ONLY, boats may only be retrieved between the hot pit area and the Pit Buoy. And no racer is allowed to enter the water at all during the retrieval. A designated pole can be used to reach boats. The model must be returned to the hot pit area and normal re-start procedure must be followed.

    5. After the start has been signaled no further boats may be launched.

    6. ‘The start’ (as referred to above), is the audible start sound from the computer.

    7. The competitors must drive their boats around the course in a clockwise direction.

    8. During milling time, to ensure the safety of all boats, boats must keep to the “lanes” they are in as if they were racing. Cutting in front of other boats, zigzagging across the course, circling boats etc. to avoid crossing the start line early will be penalized by one lap. Boats making use of a clutch may not come to a dead stop on the water.

    9. At the end of the milling time, the race will officially start randomly (determined by the computer), at any point during the following 10 seconds, only when an acoustic signal (beep) is given, regardless of where the boats are positioned on the water.

    10. Boats crossing the start / finish line before the acoustic signal, have a false start and therefore their race only begins after they have crossed the start/ finish line again.

    11. During the race time the pilot may only leave the driver’s stand if his boat has stopped somewhere on the course, or after he has steered his boat to the launch/retrieval area and killed the engine with his transmitter. However while driving, the pilot may not leave the driver’s stand.

    12. All buoys must be negotiated in accordance with the course. Touching the buoys is allowed. Only those laps negotiated in accordance with the course are counted.

    13. If a buoy is passed on the wrong side, the pilot is not allowed to circle the buoy and will be penalized with one lap at the end of the heat.

    14. A slower boat can be overtaken on either side. During the overtaking maneuver the slower boat must keep its line. It is up to the faster boat to overtake the slower boat without interfering with it. The overtaking boat must keep its line or lane until it is at least 2 boat lengths ahead of the slower boat. It may then move into the racing lane in a smooth line.

    15. The faster boat is not allowed to interfere with the slower model during the overtaking maneuver.

    16. The boat on the race line which is less than 5 boat lengths from a buoy has right of way. A maneuver to force a boat to take the inside of a buoy in order to overtake is not permitted.

    17. If a boat loses its number-plate or a number during the race, Race-Control (RC) could instruct that pilot to bring the boat in immediately and a new number must be fitted before his racing can commence. This is a procedural requirement as RC cannot always identify such a boat without its number, in the event of warnings, penalties, missed laps etc. In the interest of fairness and uniformity, this rule will be applied in all cases. However, race control may decide not to instruct such a pilot to bring his boat in depending RC’s ability to recognise that boat even without it’s number.

    18. In cases of unfair behavior, interference with other competitors, not following the rules or endangering of spectators the chief judge can pronounce the following penalties:

      • The first occurrence of not following the racing rules, where no other boat has stopped as a result of the incident, a verbal warning will be given – 1st warning.

      • The second occurrence of not following the racing rules, or a more serious incident, will be punished with having to go around the pit buoy on the next lap – 2nd warning.

      • The third occurrence of not following the racing rules, or a more serious incident, will be punished with a one lap deduction – 3rd warning.

      • NOTE! If any one of the above three instances in i, ii, or iii also results in, and causes, another (secondary) boat to be damaged or stopped in the water, a disqualification of the errant pilot, from that heat, will be applied by R/C.

      • Running over or crashing into, (even touching or lightly bumping into), a stopped ‘dead’ boat after it has been announced on the PA as a ‘dead boat’, will be punished by disqualification from that heat. The DQ’d model has to complete the lap he is on and be taken out of the water immediately.

      • The competitor will be verbally informed of the DQ details and he may also request a written penalty.

      • In exceptional cases of continuous infringement of the rules or in cases of bad behavior a competitor can be banned from further participation in the race meeting by the chief judge.

      • The end of the race is indicated by an acoustic signal. After the final signal, pilots must complete the lap they are on as fast as possible. The computer will record the time delay to complete the last lap. This time will be recorded with the number of completed laps.


  • Basic rules and penalties in the Offshore/Hydro Rigger / F1 classes

    1. Failing to comply with the following rules could result in a disqualification from one heat or the entire competition.


  • Weaving turns

    1. Excessive weaving on the course is not permitted, except when giving way or to avoid a collision. Minor steering corrections to the left and right, or to overtake other boats is allowed.

    2. The following cases will be penalized by a one lap deduction:

      • A weaving turn in excess of 45 degrees.

      • When a competitor endangers another model by turning or weaving.


  • Right of way

    1. Reliable turning and steering techniques as well as sporting fairness are requirements for the correct use of the race course.

    2. The normal racing line is the line closest to the outline of the course. Boats on the racing line have right of way.

    3. A boat on the normal racing line has the right to maintain its course.

    4. A boat overtaking a boat ahead which is on the same racing line must be at least 3 meters ahead before it has the right of way.

    5. The following cases will be penalized by a one lap deduction:

      • Not following the rules that specify the right of way.

      • Preventing other boats from overtaking by zigzagging, making S-turns, etc.


  • Negotiating / passing the buoys

    1. Buoys 1, 2, 4 and 5 must be negotiated on the outside, while buoy 3 (the middle M buoy) must be negotiated on the inside.

    2. Buoy penalties are given by the judges and assistant judges and not by fellow boaters. It is not possible to protest their decision.

    3. The following cases will be penalized by a one lap deduction:

      • Passing a buoy on the wrong side. There will be a one lap penalty for each buoy missed.

      • Cutting, crossing or driving through the race course.

    4. Whenever a boat is launched onto the water at the start of or during a heat, it must be steered straight and directly towards the outside of the pit-buoy, and then on towards buoy-2, giving safe way to any boats coming up to buoy-2 from buoy-1. Failure to take proper precaution in complying with this rule could lead to disqualification from that heat.

    5. If a competitor cannot steer their boat properly they will receive a warning. If their driving does not improve, they will be disqualified from the heat and will be told to remove their boat from the water after completing the lap they are on.