GT4OO Construction and Racing Rules
| gt4oo_construction_and_racing_rules.pdf |
- The standard hull and deck must be used with no modifications.
- The removable top can be any one of the standard range available or to your own design, but must be 'scale like'.
- A standard Graupner motor and drive assembly (part no. 1970) or component parts of the above unit as sold separately (as listed below) to be used.
3321 Speed 400 6 volt motor
416 Marine prop-shaft & tube 180/160mm, M2 thread
2318.26 Carbon Hydro prop 26mm, M2
355.3 Shaft coupling 2/2.3mm
2333 Coupling housing
29997.4 Bearing support / lubrication nipple, 4mm dia tube (x2) - A 400 size 6v motor to be used with no modifications or tampering of any kind.
- No metal propellers to be used – Graupner 26mm standard or cut down 29mm are the only propellers to be used.
- A 7.2 volt sub-C NiCad or NiMH battery must be used. The battery pack may be constructed from single cells or purchased as a ready-made pack, to be assembled in a straight line, either side by side or in two sticks of three cells placed together. Cells or packs that have been Performance Selected, designated as High Voltage, Matched, Voltage/Capacity Enhanced in any way, are prohibited.
- Internal set-up including motor, battery, radio etc. is to the owners personal preference.
- Rudder to be shop bought or home made to personal preference.
- Water cooling is recommended.
- An arming link is recommended.
- A rubber bump strip is to be fitted to the bows.
- A Velcro fastening to attach the racing number (provided at meeting) should be fixed to the Starboard side of the boat.
- All boats to be painted or decorated in a manner that they are highly visible both on the water whilst racing or if capsized.
- Races to last 5 minutes.
- Races to use the 30m by 15m ‘M’ course in an anti-clockwise direction.
- The start will be on the water from a starting gate, within 10 seconds of ready and after the whistle.
- Seconds to be counted after the 5 minute race to complete the current lap, with a maximum of 60 seconds. Whistle to announce finish.
- 5 second penalty for missing a buoy, after 2 misses a lap will be deducted for each additional miss – NO ROUNDING OF BOUYS.
- Rescue boat allowed on the course if a race boat is in danger of sinking, automatic disqualification for hitting the rescue boat or a dead or capsized race boat on the course. Dead boat to be called with its position on the course.
- Any boat that is being lapped is to give way to the chasing boat.
- Any boat that appears to be going much faster than the accepted norm will be scrutinised and penalised if found to be in breach of the rules.
