Non Spin/HSFClub Certificate2025
StormRSA-1967
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
Rated boat velocities in knots
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles46.0°46.0°44.1°42.9°41.6°40.3°39.9°40.1°41.8°
Beat VMG1.982.783.443.934.324.594.704.724.56
52°3.164.365.295.936.356.626.776.816.77
60°3.424.665.586.186.566.806.967.047.05
75°3.574.845.776.376.736.987.177.437.50
90°3.494.755.696.366.757.017.237.627.90
110°3.014.245.296.106.646.987.267.798.31
120°2.824.035.085.916.516.887.177.718.31
135°2.443.574.605.446.136.626.957.488.03
150°2.053.064.024.875.596.206.647.217.71
Run VMG1.782.653.494.264.965.596.146.897.38
Gybe Angles148.5°148.5°152.3°158.2°166.7°172.1°176.3°179.0°179.0°
APH ToD:659.7CDL: 7.647APH ToT: 0.9095CertNo:ZAN168
BOAT
ClassOcean 31DesignerLavranosBuilderRobertson & CaineAge date01/1992Series date01/1992Offset fileOcean 31_DV.offData fileRSA1967
HULL
Length Overall9.350 mMaximum Beam3.248 mDraft1.485 mDisplacement4,665 kgDLR6.9003IMS DivisionPerformanceDynamic Allowance0.380%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeSolid 3 bladesDiameter0.340m
CREW
Maximum weight571 kg(default)Minimum weight441 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail23.2923.67Headsail Luffed30.7530.75Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail7.16Storm Jib7.65Heavy Weather Jib20.65
SAIL LIMITS
Headsails1
✱ One set on the forestay
✱ Zero set flying
✱ Woven polyester sails
Spinnakers0
✱ Spinnaker pole aboard
STABILITY
Righting MomentN/AStability IndexN/A
The owner and any other person in charge is responsible that boat is complying with her certificate in accordance with RRS 78.1 and ORC Rule 304.
Non Spin/HSFClub Certificate2025
StormRSA-1967
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
Time Allowances in secs/NM
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1817.91294.71046.1915.6834.1784.2765.4762.4788.8
52°1137.8825.6680.7607.5566.8543.8532.0528.5531.8
60°1053.5772.8645.0582.3549.1529.4517.4511.1510.6
75°1008.1743.8624.2564.8534.6516.0502.0484.7480.0
90°1033.0758.6632.2566.2533.3513.3497.8472.3455.6
110°1197.1848.4680.5590.3542.3515.6495.9462.2433.1
120°1274.6893.1708.3609.1553.3522.9502.1466.8433.3
135°1475.61009.5782.5661.2587.2544.0518.2481.6448.1
150°1755.11178.1894.4738.7643.5580.7542.1499.2466.7
Run VMG2027.21360.31031.0844.9726.1644.2586.1522.5487.5
Selected Courses
Windward / Leeward1920.01327.51038.6880.3780.1714.2675.8642.5638.2
All purpose1434.21009.0804.0694.4629.1588.7565.0540.5530.1
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward822.80.7292
All purpose659.70.9095
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance723.80.8290
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2068.61330.8974.9788.3674.4612.0571.6517.3501.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6560
Downwind "popa"0.7349
70% up, 30% down "Ilhabela"0.6778
30% up, 70% down "Ilhabela-inverso"0.7093
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Predominantly Upwind705.00.8510
Predominantly Downwind688.50.8715
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low906.50.6619
Triple Number AP Medium655.40.9154
Triple Number AP High561.81.0681
Triple Number Windward/Leeward Low1241.20.4834
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Single Number Predominant Upwind738.00.8130
Single Number Predominant Reaching661.30.9073
Single Number Predominant Downwind727.00.8253
Predominant Upwind - Low1083.70.5536
Predominant Upwind - Low/Med797.30.7526
Predominant Upwind - Medium675.40.8883
Predominant Upwind - Med/High610.00.9836
Predominant Upwind - High592.01.0135
Predominant Downwind Low1149.70.5219
Predominant Downwind Low/Med808.00.7425
Predominant Downwind Medium656.20.9143
Predominant Downwind Med/High564.31.0632
Predominant Downwind High523.51.1462
Predominant Reaching Low982.50.6107
Predominant Reaching Low/Med718.00.8357
Predominant Reaching Medium605.70.9905
Predominant Reaching Med/High542.01.1069
Predominant Reaching High514.01.1674
SA/DSPL Upwind19.26SA/DSPL Downwind19.26
Scoring OptionTODTOT
5-Band Windward/Leeward Low1404.00.4273
5-Band Windward/Leeward Low/Med987.20.6078
5-Band Windward/Leeward Medium798.50.7514
5-Band Windward/Leeward Med/High685.40.8754
5-Band Windward/Leeward High647.50.9267
Windward/Leeward 60-40 Low1395.90.4298
Windward/Leeward 60-40 Low/Med990.80.6056
Windward/Leeward 60-40 Medium809.10.7416
Windward/Leeward 60-40 Med/High703.10.8534
Windward/Leeward 60-40 High671.50.8936
5-Band AP Low1021.90.5872
5-Band AP Low/Med769.70.7795
5-Band AP Medium642.40.9340
5-Band AP Med/High570.31.0521
5-Band AP High543.01.1050
5-Band SF Bay Tour - Low1195.90.5017
5-Band SF Bay Tour - Low/Med941.60.6372
5-Band SF Bay Tour - Medium769.30.7800
5-Band SF Bay Tour - Med/High669.60.8961
5-Band SF Bay Tour - High637.80.9408
Chicago-Mac Upwind0.7806
Chicago-Mac All Purpose0.7892
Chicago-Mac Downwind0.7884
Bayview-Mac Cove Island0.5486
Bayview-Mac Shore0.5546
Harvest Moon Regatta564.21.0635
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance723.80.8290
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2068.61330.8974.9788.3674.4612.0571.6517.3501.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance723.80.8290
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2068.61330.8974.9788.3674.4612.0571.6517.3501.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance723.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2068.61330.8974.9788.3674.4612.0571.6517.3501.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)723.80.8290
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2068.61330.8974.9788.3674.4612.0571.6517.3501.4
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8290
Triple Number Coastal/Long Distance Low0.6619
Triple Number Coastal/Long Distance Medium0.9156
Triple Number Coastal/Long Distance High1.0681
Triple Number Windward/Leeward Low0.5072
Triple Number Windward/Leeward Medium0.7330
Triple Number Windward/Leeward High0.8917
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2068.61330.8974.9788.3674.4612.0571.6517.3501.4
For information
General Purpose Handicap (GPH)752.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance723.80.8290
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2068.61330.8974.9788.3674.4612.0571.6517.3501.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance723.80.8290
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2068.61330.8974.9788.3674.4612.0571.6517.3501.4
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance723.80.8290
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2068.61330.8974.9788.3674.4612.0571.6517.3501.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low906.5
Triple Number Coastal/Long Distance Medium655.3
Triple Number Coastal/Long Distance High561.7
Triple Number Windward/Leeward Low1183.0
Triple Number Windward/Leeward Medium818.6
Triple Number Windward/Leeward High672.9
Predominantly Upwind705.0
Predominantly Downwind688.5
Predominantly Reaching649.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance723.80.8290
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2068.61330.8974.9788.3674.4612.0571.6517.3501.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6619
Triple Number Coastal/Long Distance Medium0.9156
Triple Number Coastal/Long Distance High1.0681
Triple Number Windward/Leeward Low0.5072
Triple Number Windward/Leeward Medium0.7330
Triple Number Windward/Leeward High0.8917
Coastal/Long Distance0.8290
Predominantly Upwind0.8510
Predominantly Downwind0.8715
For information
General Purpose Handicap (GPH)752.2
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9095
Distanseseilas Trippeltall svak vind0.6619
Distanseseilas Trippeltall mellomvind0.9156
Distanseseilas Trippeltall sterk vind1.0681
Pølsebane Trippeltall svak vind0.5072
Pølsebane Trippeltall mellomvind0.7330
Pølsebane Trippeltall sterk vind0.8917
Motvind Singeltall0.8510
Medvind Singeltall0.8715
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Coastal/Long Distance723.80.8290
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind705.00.8510
Predominantly Downwind688.50.8715
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore639.50.9383
Cape Doctor Coastal533.21.1252
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6619
Triple Number Coastal/Long Distance Medium0.9156
Triple Number Coastal/Long Distance High1.0681
Triple Number Windward/Leeward Low0.5072
Triple Number Windward/Leeward Medium0.7330
Triple Number Windward/Leeward High0.8917
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6619
Triple Number Coastal/Long Distance Medium0.9156
Triple Number Coastal/Long Distance High1.0681
Triple Number Windward/Leeward Low0.5072
Triple Number Windward/Leeward Medium0.7330
Triple Number Windward/Leeward High0.8917
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance723.80.8290
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Predominantly Upwind705.00.8510
Predominantly Downwind688.50.8715
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2068.61330.8974.9788.3674.4612.0571.6517.3501.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance723.80.8290
Triple Number Coastal/Long Distance Low906.50.6619
Triple Number Coastal/Long Distance Medium655.30.9156
Triple Number Coastal/Long Distance High561.71.0681
Triple Number Windward/Leeward Low1183.00.5072
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2068.61330.8974.9788.3674.4612.0571.6517.3501.4
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low906.50.6619
Triple Number AP Medium655.40.9154
Triple Number AP High561.81.0681
Triple Number Windward/Leeward Low1241.20.4834
Triple Number Windward/Leeward Medium818.60.7330
Triple Number Windward/Leeward High672.90.8917
Single Number Predominant Upwind738.00.8130
Single Number Predominant Reaching661.30.9073
Single Number Predominant Downwind727.00.8253
Predominant Upwind - Low1083.70.5536
Predominant Upwind - Low/Med797.30.7526
Predominant Upwind - Medium675.40.8883
Predominant Upwind - Med/High610.00.9836
Predominant Upwind - High592.01.0135
Predominant Downwind Low1149.70.5219
Predominant Downwind Low/Med808.00.7425
Predominant Downwind Medium656.20.9143
Predominant Downwind Med/High564.31.0632
Predominant Downwind High523.51.1462
Predominant Reaching Low982.50.6107
Predominant Reaching Low/Med718.00.8357
Predominant Reaching Medium605.70.9905
Predominant Reaching Med/High542.01.1069
Predominant Reaching High514.01.1674
SA/DSPL Upwind19.26SA/DSPL Downwind19.26
Scoring OptionTODTOT
5-Band Windward/Leeward Low1404.00.4273
5-Band Windward/Leeward Low/Med987.20.6078
5-Band Windward/Leeward Medium798.50.7514
5-Band Windward/Leeward Med/High685.40.8754
5-Band Windward/Leeward High647.50.9267
Windward/Leeward 60-40 Low1395.90.4298
Windward/Leeward 60-40 Low/Med990.80.6056
Windward/Leeward 60-40 Medium809.10.7416
Windward/Leeward 60-40 Med/High703.10.8534
Windward/Leeward 60-40 High671.50.8936
5-Band AP Low1021.90.5872
5-Band AP Low/Med769.70.7795
5-Band AP Medium642.40.9340
5-Band AP Med/High570.31.0521
5-Band AP High543.01.1050
5-Band SF Bay Tour - Low1195.90.5017
5-Band SF Bay Tour - Low/Med941.60.6372
5-Band SF Bay Tour - Medium769.30.7800
5-Band SF Bay Tour - Med/High669.60.8961
5-Band SF Bay Tour - High637.80.9408
Chicago-Mac Upwind0.7806
Chicago-Mac All Purpose0.7892
Chicago-Mac Downwind0.7884
Bayview-Mac Cove Island0.5486
Bayview-Mac Shore0.5546
Harvest Moon Regatta564.21.0635
Non Spin/HSFClub Certificate2025
StormRSA-1967
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassOcean 31Measurement01/08/2017HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.350Max. Beam3.248Draft1.485Displacement4,665Wetted area22.68IMS L8.884LSM08.776Acc. length9.350Sink (kg/mm) 16.97
VCGD0.137VCGM0.055RM Rated (kg·m) 102.8Limit of positive stability(°) N/AStability IndexN/ADefault crew weight571Declared crew weightN/A
PROPELLER
Propeller TypeSolid 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.340PBWPIPA0.0144
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders2Rotating mastNo
P10.613IG12.365ISP12.261MDT10.100MDL10.175MDT20.100MDL20.175TL0.000MWGO
E3.850J3.630BAS1.447FSDFoilSFJSPL3.630WPLTPS4.050BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date05/09/2017
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Non Spin/HSFClub Certificate2025
StormRSA-1967
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment19670.130.741.362.323.1123.2915/07/2017
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentNo 10.090.651.252.533.925.3411.79NoNo 30.7515/07/2017Furler