UIM Rule
Hull
The hull shall be displacement or monoplane type in which the continuity of the portion of the hull immersed at rest, in racing trim with the driver on board, shall not be interrupted longitudinally or transversely by any form of break, step or device of construction or hydrofoil, that would provide multiple planning surfaces. Hulls are permitted to be either mono V hulls or flat bottom hulls.
The term hull shall include all additions and attachments below the waterline with the exception of the shaft, strut propeller rudder, fin and such that are usual and necessary. Cavitation plate, trim tabs and after planes that are fixed or adjustable whilst underway shall be permitted.
Lap strake or reverse lap strake construction may be used provided the immersed portion of the strakes (planks) be approximately parallel with the centre line of the hull and the depth of the strake (plank) be no greater than 35mm.
Planing strakes (planks) unless continuing to the tuck (transom) must finish on an angle being not less than 450mm from the point of commencement of the angle to flush with the hull bottom and the angles not to be concave to the hull bottom.
Non-trip chines with a rise of not less than 75mm in 300mm, vertical sided keels and skid fins shall be allowed. At the option of the owner or the builder, that point where the planking meets the non-tip chine can be rounded or left square regardless of the thickness of the planking. The depth (thickness) of the strake (plank) is to be taken by stretching a wire or similar material around the bottom of the hull, at right angles to the centre-line, on the point being measured. The depth (thickness) is to be measured are right angles to the hull surface and this depth must not be more than 35mm at any point. The length must be measured between perpendiculars at the foremost and utmost rigid part of the hull. Any extending parts such as rubbing strakes, fenders, stabilizing or trim tabs, rudder, skeg or cavitation plate, are not to be included in the length measurement.
WINGS
Only Infinity class hulls fitted with forced induction (blown/supercharged)engines are permitted to use wings.
Only single or dual plane wings are permitted.
All wings must be mounted directly to the engine or the engine bearers.
The wing including the side fins/spill plates should be a maximum of 450mm higher than the highest point of the boat or engine and must not extend beyond the extremities of the hull at the mounting point.
The suitability and adequacy of the wing is the responsibility of the owner, who should be satisfied that it is competently designed, manufactured and fitted so as to remain fixed and operational at high speeds.
The wing may be adjustable while the boat is in motion.
MINIMUM DIMENSIONS
CLASS RD- ̊ ̊
LENGTH 5.2M
REINFORCED COCKPIT 5,000N MANDATORY
MACHINERY CLASS RD ̊ ̊INFINITY
The motor is free.
The motor must be fixed inside the hull.
The power transmission train must pass through the structure of the hull.
All modifications are allowed.
All propelling forces must be directed in and against the water.
An electric starter and battery must be on board.
The transmission is free.
FUEL : CLASS RD - ̊ ̊̊̊RD INFINITY
The type of fuel will be Gasoline or Methanol. Nitrous oxide will be permitted. Nitro Methane and any other chemical supercharging will not be permitted.
MACHINERY CLASS RD ̊ ̊6000
Maximum capacity of motor is 366 cubic inches.
Stroke/Bore is of any type that meets the cubic inch capacity.
Camshafts to be in engine block (No overhead camshafts).
Cylinder heads must be of over rocker design, push rod articulated and 2 valves per cylinder.
No pneumatic springs allowed. Must be a conventional valve spring.
Intake system (fuel injection must be of mechanical nature, no EFI systems allowed) maximum. Size of 2.9 inches throttle bodies.
Intake system (carburetion must be of mechanical nature, no EFI systems allowed) maximum size of 1500 cfm, single or twin.
FUEL
CLASS RD - ̊ ̊6000
All fuel, including carburetion must be Methanol or petrol based fuel. Fuel must not contain oxygen enhancements (Nitro Methane etc)
BOAT SAFETY
904.1.2
A safety collar on the propeller shaft, within 0.5 inches of the leading end of the strut and a safety collar within 0.5 inches of the shaft log assembly, is mandatory on all runabout classes. Safety collars must be configured so they will prevent the shaft and propeller from sliding back and hitting the rudder should the thrust bearing come apart or loose on the shaft. The safety collar must have two set screws or be of the split-type configuration. If placed forward of the thrust bearing, the collar must be larger than the bearing.
904.1.3
V Drives must be fitted with a Whirlaway (Prop Release) and a retainer type device is fitted between the clutch housing and log, to stop the clutch housing from moving back so the prop or prop shaft does not move back far enough to hit the rudder, due to bolt failure of the clutch housing or gearbox. The drive shaft must pass through this retainer type device with minimum clearance.
The owner/pilot is entirely responsible for the effectiveness, suitability and adequacy of the retaining device.
904.1.4
All boats must be equipped with a positive return throttle, insuring that the throttle plate returns to a normally closed position when throttle pressure is released. Springs should be mounted on the throttle shaft assembly.
All boats must have suitable flotation which will float the hull, motor and driver in a swamped state. It will be the responsibility of each owner to verify if his craft’s flotation is adequate. It is recommended that flotation be placed in location to help upright capsized hulls. Flotation should be provided in at least 4 separate flotation units.
NON-DESTRUCTIVE TESTING
904.1.5
(NDT), such as magnetic particle, dye penetrate or other processes, is recommended regularly for propellers, shafts, couplers, rudders, fins, brackets, struts and other critical hardware. Following an accident, it is mandatory that NDT be performed prior to competition.
AIR SYSTEM
904.2.1
A full time on board air system is mandatory for all boats, The following guidelines must be followed:
904.2.2
The pilots mask must cover the driver’s nose and mouth and be designed to be watertight. The mask must be attached in such a way as to prevent its being dislodged or removed inadvertently and must be worn by the pilot anytime the boat is under power.
904.2.3
All boats must carry of minimum of 30 cubic feet of air, regardless of mask type. All air delivery systems, whether permanent or part time, shall carry air in a vessel approved and certified for the delivery of breathing air. All components of the air system shall be rated for use with compressed air and for the pressures to which they will be subject.
CAPSULE TRAINING
904.2.4
All capsule pilots are required to successfully complete a National Authority Approved Inboard Capsule Training Program.
904.2.5
In addition, at race sites or other location, a referee or inspector may require the pilot to :
- Demonstrate that they can adequately extricate themselves from a safety team test cell, both on land and under water.
- Demonstrate that they can extricate themselves from the cockpit of the boat he intends to pilot prior to any event.
- Complete any further test, including a driving test, under the supervision of the Inboard Racing Commission or their designee, to demonstrate that the said person can participate in an event without representing an unjustifiable risk or endangerment to themselves or others.
CAPSULE
904.3.1
All hulls must be fitted with a reinforced cockpit [per rule 509] with a minimum strength of 5000 newtons.
Mandatory standards for all restraint capsules include:
- Openings for restraint harnesses, wiring, cables, hoses, etc. must be kept to a minimum. The use of grommets or other types of sealing devices are recommended around these openings.
- All canopies must have an external handle or hand hold opening.
- All boats must have a rollover lift bracket or eyelet permanently attached to the rear area of cockpit. The bracket or eyelet must have at least a ¾” hole and be strong enough to support the weight of the boat should it need to be righted for rescue purposes.
- Positive air flow ventilation
- Right and left hand rear view mirrors are required on all boats.
904.3.3
All boats must have the official Inboard manufacturer’s label permanently attached and visible inside the cockpit. It is the boat owner’s responsibility that this label be present and legible. Manufacturers will receive an acknowledgement from the Federation Inboard Racing Commission stating that the company is registered to build restraint capsules for the Inboard Category.
SEAT BELTS
904.3.4
The use of an approved seat belt with a quick opening clasp is mandatory. Both the fastening design and condition of the belt is subject to inspection. Belts must meet the following requirements:
- Minimum width 2 inches
- Minimum tensile strength : 8000 pounds (loop test)
- Polyester belt material is mandatory.
- Belt material to be as short as practical.
- Metal to metal quick release buckle
- A high strength, highly visible lanyard will be attached to the release lever of the lever/latch system.
RESCUE SAFETY TEAM CRITERIA
904.4.1
The following are the standards for rescue safety teams working events:
- The names of the safety/rescue team selected to work each event must be listed on the race circular for events.
- Rescue personnel shall contact potential receiving hospitals prior to the event day in order to familiarize the facility with particulars about the event.
- The ambulance, emergency medical staff, and dive team and all rescue team members in attendance shall be dedicated to provided service to the race for the duration of the event, and will not be on call or otherwise responsible for other duties.
- The rescue team must have communication equipment sufficient to ensure adequate communication between rescue boats, race officials and the Race Rescue Director. The rescue boats shall have radio communications with the Officer of the Day, or his designees. Radio communications specific to patient condition shall be kept at a minimum. Rescuers should bear in mind at all times that radio frequencies may be monitored. Condition of patient shall only be discussed with the Officer of the Day.
PERSONNEL AND STAFFING
An individual member of the rescue team must be clearly identified as the Race Rescue director. He or his designee shall be the lead person at all rescue scenes and shall direct all rescue operations. He will take direction from and report to the Referee.
The Race Rescue Director shall meet daily with the Officer of the Day or his designee for instruction prior to beginning the day’s events. The Race Rescue Director shall immediately advise the Officer of the Day if, in his/her opinion, any unsafe course conditions (including swimmers in the water, alcohol consumption on the course boats, underage children on course boats, lack of PFD use, debris on course, etc) exist.
No heat shall be started at an Event in the absence of a licensed physician, registered nurse, paramedic, or an EMT in attendance. An ambulance will be authorized to transport injured individuals from the race course to the assigned hospital, and the medical attendant will be trained and authorized to use all the equipment in the ambulance.
There shall be a minimum of four divers certified by an accredited certifying agency present on the water at all times.
Prior to each race day, divers shall familiarize themselves with drive safety equipment and structural characteristics of each boat. Divers shall be fully suited and ready to enter water at any time a race boat is present on the water. The divers may or may not be on the official rescue boat but cannot be on either of the turn judge boats.
PATROL BOATS AND RESCUE BOATS
904.4.2
There must be a minimum of two (2) designated rescue boats capable of carrying one or more accident victims in a supine position present and the craft shall be staffed and ready for use at all times when racing boats are under power. A patrol boat, properly staffed and equipped, may be used as a rescue boat. These boats should be positioned to minimize response time to an incident on the course.
904.4.3
The operators and crews of all rescue/patrol/turn judge boats with the exception of divers shall meet with the Officer of the Day, or his designated representative, for instructions prior to each day’s racing.
904.4.4
The operators and crews of all rescue/patrol/turn judge boats with the exception of divers shall wear personal flotation devices (PFDs) in the manner intended by the manufacturer, any time a race boat or their rescue boat is under power on the course. They must be fully informed by the Officer of the Day, or his designee, in signal flag use, driver hand signals, on how to conduct themselves, their position on the course, what to watch for, and how to respond in the case of an emergency. The importance of moving slowly to not create a wake should be stressed.
904.4.5
A set of appropriate signal flags should be carried by both rescue and patrol boats. The Officer of the Day should ensure that all boat personnel are instructed in signal flag use.
904.4.6
Two patrol boats as an absolute minimum and more if conditions warrant, are available for duty on the course at all times. Only authorized personnel shall man safety and/or patrol boats.
904.4.7
No person less than fourteen (14) years of age, unless accompanied by a parent, will be allowed to be a member of a patrol or turn judge crew except UIM members being trained or functioning as a turn judge.
904.4.8
Rescue boats may not be utilized for purposed other than rescue functions while race boats are on the water.
904.4.9
When any race boat is on the course, each rescue boat staff shall consist of a minimum of two persons onboard consisting of at least one certified or licensed EMT-Basic capable of providing basic life support and one experienced boat driver.
- Prying tool (minimum 12 inch) – one per rescue boat.
- 16 inch cable cutter – one per rescue boat
- Rigid body immobilization device (such as Stokes basket, backboard, etc) – at least one per course.
- A minimum of 25 to 50 foot tow rope with heavy duty quick connects such as snap hooks or carabiners at each end – per rescue boat.
- Equivalent of 20 lb. dry chemical (ABC) fire extinguisher – per rescue boat.
- Flares or pyrotechnic devices shall not be carried on rescue boats.
904.5.0
Medical Equipment per boat
- Body substance isolation devices
- Airway kit including basic airway adjuncts, a bag-valve mask, and manual or mechanical suction.
- Basic BLS trauma kit
- Blankets and towels
- Liquid detergent for hand washing and fuel decontamination.



