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ORC International certificate comes in two A4 pages. The First page contains all the rating details used mainly by the race committee to score races as well as by sailors while racing. Besides the boat's data with general specifications, there is rating information provided for the simple scoring options and time allowances for Performance Curve Scoring with four types of pre-selected courses. The most important section for sailors is the Velocity prediction in knots for true wind speed given in the table for 6, 8, 10, 12, 14, 16 and 20 knots of true wind speed and wind angles of optimum beat, 52, 60, 75, 90, 105, 120, 135, 150 and optimum downwind angles. Additionally, there is infomation about declared and default crew weight including double-handed and non-spinnaker scoring coefficients, number of sails allowed aboard while racing and limitation for the storm sail's area.

Second page is the IMS Measurement certificate that includes all the measurements as recorded by the measurer including complete sails inventory and measurement inventory recorded on the inclining test. Some measurement data such as mizzen, centerboard, canting keel and water ballast are shown only when they are relevant.

Optional third page is showing sail plan and complete sails inventory.

Click on any part of certificate for description


Boat
	Boat's name and sail number GPH: General Purpose Handicap is an average representation of all time allowances used for simple comparisons between boats and possible class divisions. It is calculated as an average of the time allowances of 8 and 12 knots true wind speed for the Circular Random pre-selected course. to the top é


General
	Class, Designer and Builder: Series: Month and Year of launching of the first boat of series Age: Month and Year of launching the boat Age Allowance: credit for age of 0.065% of ratings increase for each year from Age or Series Date to the current rule year up to maximum of 15 years to the top é


Hull
	Length Overall: length overall of the boat including the whole hull, excluding any spar, between the stem and aftermost point of the hull Maximum Beam: maximum hull width Displacement: displacement in measurement trim Draft: draft in measurement trim IMS Reg. Division: Racing or Cruiser/Racer Dynamic Allowance: credit representing dynamic behavior of a boat taking into account performance in unsteady states Fwd Accomodation: when the bow forward of the mast is fully fitted out as a separate sleeping or living space Hull Construction: Solid, Cored, Carbon, Light/Other Carbon Rudder: when rudder and/or rudder post contain carbon fiber in any amount Trim Tab: presence of trim tab IMS L: effective sailing length which takes into account the hull shape along its length and especially at the ends of the yacht, both above and below the plane of flotation in sailing trim VCGD: vertical centre of gravity from the datum line in the hull offset file VCGM: vertical centre of gravity from the measurement water line Sink: how many kilograms is needed to sink boat for 1 mm. Wetted Area: Hull and appendages wetted area. to the top é


Simple Scoring Options
	Simple scoing options Time On Distance Time On Time Performance Line Triple Number as described here. to the top é


Performance Curve Scoring
	Time Allowances for different wind speed and angles used for the Performance Curve Scoring as desribed here. to the top é


Polar Diagram
	Theoretical boat speed in knots for different wind speeds and directions. to the top é


Certificate		Crew Weight
	Number: certificate number issued by the rating authority ORC Ref: ORC reference number Issued On: Date of certificate issue VPP Ver: VPP version Valid until: Date of expiry		Total crew weight aboard shall not be greater than Declared: as declared by the owner Default: if not declared to the top é


Special scoring		Sail Limitations
	ToD and ToT scoring coefficents for double handed and non-spinnaker races		Number of sails allowed aboard while racing Spinnaker configuration: Spinnaker configuration: Type of spinnaker used and how asymmetric is tacked (on pole or on centerline) with indication for Code 0. to the top é


Storm Sail Areas
	Maximum sail areas for the storm sails as defined by the Offshore Special Regulations.	to the top é


Rig
Forestay Tension: Aft, Forward, Aft & Forward or Fixed Inner Forestay: Fixed, Adjsutable or None Carbon mast: Presence of carbon mast Taper Hollows: If mast taper has hollows Jumpers: Presence of jumpers Spreaders: Number of spreaders Runners: Number of runners Backstay: Indicate if there is no backstay	P Mainsail hoist IG Height of genoa hoist ISP Height of spinnaker hoist SPS Height of spinnaker pole stop BAS Height of boom above sheerline BAL Boom aft sheeting limit E Mainsail foot J Foretriangle base SFJ Stem to forward end of J SPL Spinnaker pole length TPS Tacking point of spinnaker FSP Forestay perpendicular MDT1 Max. mast transverse section MDL1 Max. mast fore and aft section MDT2 Min. mast transverse section MDL2 Min. mast for and aft section MW Mast width GO Forestay Outrigger TL Taper Length MWT Mast weight MCG Mast centre of gravity CPW Chainplate width BD Boom diameter BWT Boom weight to the top é


Inclining Test & Freeboards
	SG Specific gravity FFM Freeboard forward measured FAM Freeboard aft measured FF Freeboard forward adjusted to default SG FA Freeboard aft adjusted to default SG SFFP Stem to forward freeboard station SAFP Stem to aft freeboard station W1 - W4 Inclining test weights PD1 - PD4 Pendulum deflections WD Weight distance GSA Gauge Surface Area of inclining manometer RSA Reservoir Surface Area of inclining manometer PLM Length of inclining manometer to the top é


Propeller
	PRD Propeller diameter PBW Propeller blade width PIPA Propeller installation projected area PSA Propeller shaft angle PSD Propeller shaft diamater PHD Propeller hub diameter PHL Propeller hub length ST1 - ST5 Strut dimensions ESL Exposed shaft length to the top é


SailsAsymmetric spinnaker luff
For each type of sail, the one with maximum area is shown with measured and rated areas (if rated is different than measured) together with appropriate formula for area calculation.

Mainsail	Jib/Genoa	Symmetric spinnaker	Asymmetric / Code 0

HB Mainsail top width MGT Mainsail 7/8 width MGU Mainsail 3/4 width MGM Mainsail 1/2 width MGL Mainsail 1/4 width MSW Mainsail weight	JH Jib top width JGT Jib 7/8 width JGU Jib 3/4 width JGM Jib 1/2 width JGL Jib 1/4 width LPG Jib perpendicular JL Jib luff	SL Spinnaker luff/leech SMG Spinnaker mid girth SF Spinnaker foot	SLU Asymmetric spinnaker luff SLU Asymmetric spinnaker leech ASL (SLU+SLE)/2 average AMG Asymmetric spinnaker mid girth ASF Asymmetric spinnaker foot to the top é

Measurement inventory

List of items recorded with weight and distance from stem on the inclining test.

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Sail plan and sails invenotry
	Optional third page is showing sail plan and complete sails inventory. Boat's drawing may include some items depending on the actual rig and sail configuration as follows: The rig configuration details vary with the input. Thus, the spreaders diagrammed match the spreader count, the standing rigging matches adjustable stays recorded, jumper or inner forestay are shown if recorded and split rigs are shown with a mizzen together with appropriate dimensions. A bow sprit is shown if the jib can be tacked forward of the stem. The transom geometry will represent actual boat's transom in various types from default reverse transom to the options with outboard rudder Asymmetrical spinnakers are shown according to the type declared for the yacht; i.e., the type which the rule requires to be tacked on the yacht’s centerline or else the type of asymmetrical which may be tacked on a spinnaker pole aboard the yacht. Rated sail areas are printed on each sail A cruising-type jib furler/reefer is displayed if fitted. Sails inventory include all sails measured with additional information for measurer, measurement date, manufacturer, sail material and comment. Code 0 type of asymmetric spinnaker is additionally noted. to the top é