ORCsy Certificate
   
 

ORCsy certificates comes in four A4 pages. The first page gives a general presentation of the boat with its rated boat speeds, in addition to the main hull and sail measurements.

The second page is presenting the scoring options.

 

 

 

   Page 1

 

 

 

   Page 2

 

 

 

   Page 3

 

 

 

   Page 4
 
The third page is showing a detailed list of measurements of the Hull and appendages, propeller, rig, flotation, stability, and the measurement inventory. The fourth page is reserved for measurements within the sails inventory. 

Place the cursor over different parts of the certificate page for a brief explanation. More details are given in the measurement and scoring sections, while complete definitions can be found in the appropriate rules documents.
   
 


 
 


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TIME ALLOWANCES
An ORCsy certificate provides a range of ratings, expressed as Time Allowances in s/NM for different wind conditions in the range of 6 – 20 knots of true wind speed for an optimum beat, and for 52, 60, 75, 90, 110, 120, 135, 150 degrees of true wind angle for an optimum run.
These time allowances are used in Performance Curve Scoring as a unique feature that is fundamentally different and much more precise than any other handicap system. It can rate different boats for different race conditions and course configurations by giving the boat’s theoretical predicted speeds for any wind condition and direction.

Time allowances for 7 wind speeds are also given for two pre-defined courses: Windward/Leeward is a conventional course where the race course consists of 50% upwind and 50% downwind legs, while the All Purpose course type includes equal distribution of all wind directions.

SY SCORING OPTIONS
The yacht's rating in Time on Time (ToT) and Time on Distance (ToD) scoring methods are  are shown here as generated by the ORCsy VPP in Light (TWS < 8 knots), Light-Moderate (8 <= TWS < 11 knots), Moderate (11 <= TWS < 14 knots) Moderate-Strong (14 <= TWS < 17 knots) and Strong (TWS >=17 knots). The rating used in a race is at the discretion of the Race Managers.
CERTIFICATE

ORC Reference number is a unique number identifying that certificate and may be retrieved in the ORC database available at the ORC Sailor Services.

There is an issue date as well as a VPP version used together with the latest date for the validity of the certificate.  

A boat shall have only one valid certificate at any one time. The valid certificate is the last one issued.

ORC Certificates are valid for one year. This is because the VPP software calculations are updated yearly based on the ITC’s latest research of aero and hydrodynamics, as well as improvements made from analysis of race results and boat performance during the racing season, and submissions made from ORC Nominating Bodies.