Outboard Multi-Hull

5.1 Introduction

5.1.1 In General – All rules and requirements listed in the Technical and General Competition rulebooks will govern the class. The RWO rules which follow are safety and competition based. The formula endeavors to keep competition close and exciting, principally by monitoring technology changes and limiting the differences between racing equipment from team to team in order to ensure maximum excitement and enjoyment for racers and fans alike.

5.2 Canopies – SuperStock registered race boats are required to have canopies.

5.2.1 All canopied boats are recommended to comply with the latest canopy design and technology. Contact the boat manufacturer for their canopy standards. Any damage to canopies must have a notarized certified letter from a manufacturer of canopies authorizing the continued use in a race.

5.2.2 Non-compliance – RWO has the authority to deny entry to any race boat subject to these rules that has non-complaint cockpit safety systems.

5.3 Engine Criteria

5.3.1 SuperStock Class is limited to the 2006 and up Mercury (3.2 liter) 300 XS, 300 HP, 193 C.I.D. engine.

5.3.2 All SuperStock Class Mercury 300 XS engines are required to have the stock ignition system limited to 6400 RPMS and both must have a G2X Data Logger installed and maintained to monitor the RPM level during the race. The RPM Level during the entire race must be verifiable on the Data Logger by the RWO Inspector upon the completion of the race, during Post-Race inspection. Any boat competing in the SuperStock Class that exceeds the above maximum RPM Limit, as determined by the RWO Inspector will be awarded last place points and will not be eligible for trophies, flags or prize money.

5.3.3 All outboard motor power heads and lower units must comply fully with all specifications, as provided by the manufacturer (i.e. stock as produced). The center section maybe modified upon approval by the RWO Chief Referee in conjunction with the RWO President, in order to pass a Post-Race inspection. The year of the power heads must be declared.

5.3.4 Balancing and blueprinting is not allowed.

5.3.5 A lightweight facsimile of the production cowling may be used.

5.3.6 Any reeds are allowed as long as stock reed cages are used.

5.3.7 LOWER UNITS: – All OEM gear ratios are allowed.

5.3.8 Petroleum based fuels only; octane inducing additives are not permitted.

5.4 Length

Minimum overall length of 28’ with a maximum of 32’.

5.5 Weight / Tunnel Width

5.5.1 Tunnel Width no more than 63’. Any boat having less than 63” in the tunnel may reduce its overall weight by twenty-five (25) pounds per inch of tunnel, from their base weight.

Example: Base Boat
Doug Wright – 32’ with the 63” tunnel weight is 4,300 pounds
Doug Wright – 32’ with the 62” tunnel weight is 4,275 pounds
Doug Wright – 32’ with the 61” tunnel wright is 4,250 pounds

Example: Bottom Line
Doug Wright – 32’ (older models) 57” tunnel weight is 4,150 pounds a total reduction of 150 lbs.

5.5.2 Minimum weight:
28’…3,800lb
29’…3,925lb
30’…4,050lb
31’…4,175lb
32’…4,300lb

5.5.3 Minimum weight will be determined at the end of the race. Included in the weight: engines, residual fuel, drives propellers, fixed ballast, all hull drain plugs removed, and safety equipment as stated in the racing rules. What is not included in the weight, crew, life jackets, helmets, bilge water, and ballast water.

5.6 Boat Change

A race team is not permitted to change a boat during the racing season, except if it is damaged, sold, stolen, or physically unable to race. Boat must meet class rule specification.

5.7 Propellers

All propellers must be approved by RWO prior to and after the use during an official race. They must be cast stainless steel, no forged or titanium propellers are allowed. The criteria for propeller approval are that a lab finished propeller must be inspected with the receipt of the amount paid. Showing the manufacturer’s suggested retail price. Each lab finished propeller may not exceed $2,000 dollars and must be made available to any racer within a 30 day time frame. If at any time the availability goes behind the 30 day time frame any existing propeller will be disallowed for the rest of the season or until such time as the manufacturer can meet the 30 day time frame.

5.7.1 Current list of approved propellers, all other propellers must be approved by the RWO Official prior to use.

Mercury
Hydromotive
SPINELLI
Mazco
Dewald
Hering