Double HandedClub Certificate2025
ROYAL FLUSHRSA-668
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 Angles41.0°41.0°38.8°38.8°39.2°39.8°40.5°41.3°43.4°
Beat VMG2.433.253.784.024.104.124.114.103.97
52°3.684.795.435.735.865.925.955.985.93
60°3.854.975.595.906.066.136.196.236.22
75°3.965.095.726.076.306.456.546.656.69
90°3.915.105.806.186.416.656.847.107.29
110°3.875.105.876.346.717.007.267.728.01
120°3.684.915.756.276.707.097.518.599.78
135°3.214.415.325.976.446.907.388.9712.05
150°2.613.744.735.516.066.516.948.0611.01
Run VMG2.263.244.114.845.475.956.367.189.53
Gybe Angles147.4°147.4°152.3°158.3°165.5°171.8°175.9°169.4°146.6°
APH ToD:651.0CDL: 5.884APH ToT: 0.9217CertNo:ZAD241
BOAT
ClassQUARTER TONDesignerANGELO LAVRANOSBuilderTON CUP YACHTSAge date01/1982Series date01/1982Offset fileQUARTERTON-RSA668.offData fileRSA668
HULL
Length Overall7.850 mMaximum Beam2.950 mDraft1.681 mDisplacement1,190 kgDLR7.2114IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail19.8320.07Headsail Luffed12.6112.61Headsail FlyingSymmetric35.6435.64Asymmetric
STORM SAIL AREAS (m²)
Trysail6.25Storm Jib3.71Heavy Weather Jib10.01
SAIL LIMITS
Headsails5Spinnakers4
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.
Double HandedClub Certificate2025
ROYAL FLUSHRSA-668
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 VMG1480.91109.3952.0894.4878.2874.8875.8878.5906.8
52°978.5752.2663.3628.3614.3608.2604.8601.6606.6
60°934.2724.2644.1610.5594.3586.9582.0577.6579.1
75°909.1706.7629.7593.5571.7558.1550.2541.1537.9
90°920.8706.2620.4582.9561.8541.0526.5506.7493.6
110°930.1706.4613.1568.3536.9514.0495.8466.5449.6
120°978.2732.8626.4574.4537.3507.9479.6419.3368.3
135°1121.3817.1676.3603.4558.8521.9488.1401.2298.8
150°1377.0962.3760.9653.3593.8553.3518.4446.6327.0
Run VMG1591.31111.1876.6743.7658.7605.0565.6501.1377.6
Selected Courses
Windward / Leeward1533.31110.2914.3819.1768.5739.9720.7689.8642.2
All purpose1163.9863.9731.0668.3634.7613.0596.7566.5533.2
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward795.80.7539
All purpose651.00.9217
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.80.8513
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1624.51110.3864.0745.1677.3636.5600.8533.2496.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6499
Downwind "popa"0.8297
70% up, 30% down "Ilhabela"0.6951
30% up, 70% down "Ilhabela-inverso"0.7661
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Predominantly Upwind710.30.8447
Predominantly Downwind649.40.9240
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low797.40.7524
Triple Number AP Medium648.60.9251
Triple Number AP High589.41.0179
Triple Number Windward/Leeward Low1055.10.5687
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Single Number Predominant Upwind732.40.8192
Single Number Predominant Reaching639.80.9377
Single Number Predominant Downwind672.20.8926
Predominant Upwind - Low938.50.6393
Predominant Upwind - Low/Med755.60.7941
Predominant Upwind - Medium694.50.8639
Predominant Upwind - Med/High664.50.9029
Predominant Upwind - High646.90.9276
Predominant Downwind Low957.20.6268
Predominant Downwind Low/Med728.10.8241
Predominant Downwind Medium631.00.9508
Predominant Downwind Med/High563.11.0656
Predominant Downwind High505.71.1864
Predominant Reaching Low849.20.7065
Predominant Reaching Low/Med675.70.8880
Predominant Reaching Medium608.30.9863
Predominant Reaching Med/High561.31.0689
Predominant Reaching High523.01.1471
SA/DSPL Upwind28.87SA/DSPL Downwind49.37
Scoring OptionTODTOT
5-Band Windward/Leeward Low1167.70.5138
5-Band Windward/Leeward Low/Med888.10.6756
5-Band Windward/Leeward Medium780.30.7690
5-Band Windward/Leeward Med/High722.70.8302
5-Band Windward/Leeward High686.90.8735
Windward/Leeward 60-40 Low1166.70.5143
Windward/Leeward 60-40 Low/Med899.20.6672
Windward/Leeward 60-40 Medium801.40.7487
Windward/Leeward 60-40 Med/High753.40.7963
Windward/Leeward 60-40 High726.10.8263
5-Band AP Low873.60.6868
5-Band AP Low/Med714.20.8400
5-Band AP Medium641.50.9353
5-Band AP Med/High597.51.0041
5-Band AP High565.91.0602
5-Band SF Bay Tour - Low1012.50.5926
5-Band SF Bay Tour - Low/Med852.50.7038
5-Band SF Bay Tour - Medium758.00.7915
5-Band SF Bay Tour - Med/High707.00.8486
5-Band SF Bay Tour - High672.10.8927
Chicago-Mac Upwind0.7999
Chicago-Mac All Purpose0.8322
Chicago-Mac Downwind0.8607
Bayview-Mac Cove Island0.6310
Bayview-Mac Shore0.6361
Harvest Moon Regatta558.71.0739
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.80.8513
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1624.51110.3864.0745.1677.3636.5600.8533.2496.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.80.8513
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1624.51110.3864.0745.1677.3636.5600.8533.2496.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance704.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1624.51110.3864.0745.1677.3636.5600.8533.2496.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)704.80.8513
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1624.51110.3864.0745.1677.3636.5600.8533.2496.7
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8513
Triple Number Coastal/Long Distance Low0.7524
Triple Number Coastal/Long Distance Medium0.9252
Triple Number Coastal/Long Distance High1.0179
Triple Number Windward/Leeward Low0.5927
Triple Number Windward/Leeward Medium0.7592
Triple Number Windward/Leeward High0.8404
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1624.51110.3864.0745.1677.3636.5600.8533.2496.7
For information
General Purpose Handicap (GPH)721.7
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.80.8513
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1624.51110.3864.0745.1677.3636.5600.8533.2496.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.80.8513
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1624.51110.3864.0745.1677.3636.5600.8533.2496.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.80.8513
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1624.51110.3864.0745.1677.3636.5600.8533.2496.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low797.4
Triple Number Coastal/Long Distance Medium648.5
Triple Number Coastal/Long Distance High589.4
Triple Number Windward/Leeward Low1012.3
Triple Number Windward/Leeward Medium790.3
Triple Number Windward/Leeward High713.9
Predominantly Upwind710.3
Predominantly Downwind649.4
Predominantly Reaching628.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.80.8513
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1624.51110.3864.0745.1677.3636.5600.8533.2496.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7524
Triple Number Coastal/Long Distance Medium0.9252
Triple Number Coastal/Long Distance High1.0179
Triple Number Windward/Leeward Low0.5927
Triple Number Windward/Leeward Medium0.7592
Triple Number Windward/Leeward High0.8404
Coastal/Long Distance0.8513
Predominantly Upwind0.8447
Predominantly Downwind0.9240
For information
General Purpose Handicap (GPH)721.7
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9217
Distanseseilas Trippeltall svak vind0.7524
Distanseseilas Trippeltall mellomvind0.9252
Distanseseilas Trippeltall sterk vind1.0179
Pølsebane Trippeltall svak vind0.5927
Pølsebane Trippeltall mellomvind0.7592
Pølsebane Trippeltall sterk vind0.8404
Motvind Singeltall0.8447
Medvind Singeltall0.9240
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Coastal/Long Distance704.80.8513
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind710.30.8447
Predominantly Downwind649.40.9240
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore656.50.9140
Cape Doctor Coastal543.21.1046
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7524
Triple Number Coastal/Long Distance Medium0.9252
Triple Number Coastal/Long Distance High1.0179
Triple Number Windward/Leeward Low0.5927
Triple Number Windward/Leeward Medium0.7592
Triple Number Windward/Leeward High0.8404
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7524
Triple Number Coastal/Long Distance Medium0.9252
Triple Number Coastal/Long Distance High1.0179
Triple Number Windward/Leeward Low0.5927
Triple Number Windward/Leeward Medium0.7592
Triple Number Windward/Leeward High0.8404
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.80.8513
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Predominantly Upwind710.30.8447
Predominantly Downwind649.40.9240
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1624.51110.3864.0745.1677.3636.5600.8533.2496.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.80.8513
Triple Number Coastal/Long Distance Low797.40.7524
Triple Number Coastal/Long Distance Medium648.50.9252
Triple Number Coastal/Long Distance High589.41.0179
Triple Number Windward/Leeward Low1012.30.5927
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1624.51110.3864.0745.1677.3636.5600.8533.2496.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low797.40.7524
Triple Number AP Medium648.60.9251
Triple Number AP High589.41.0179
Triple Number Windward/Leeward Low1055.10.5687
Triple Number Windward/Leeward Medium790.30.7592
Triple Number Windward/Leeward High713.90.8404
Single Number Predominant Upwind732.40.8192
Single Number Predominant Reaching639.80.9377
Single Number Predominant Downwind672.20.8926
Predominant Upwind - Low938.50.6393
Predominant Upwind - Low/Med755.60.7941
Predominant Upwind - Medium694.50.8639
Predominant Upwind - Med/High664.50.9029
Predominant Upwind - High646.90.9276
Predominant Downwind Low957.20.6268
Predominant Downwind Low/Med728.10.8241
Predominant Downwind Medium631.00.9508
Predominant Downwind Med/High563.11.0656
Predominant Downwind High505.71.1864
Predominant Reaching Low849.20.7065
Predominant Reaching Low/Med675.70.8880
Predominant Reaching Medium608.30.9863
Predominant Reaching Med/High561.31.0689
Predominant Reaching High523.01.1471
SA/DSPL Upwind28.87SA/DSPL Downwind49.37
Scoring OptionTODTOT
5-Band Windward/Leeward Low1167.70.5138
5-Band Windward/Leeward Low/Med888.10.6756
5-Band Windward/Leeward Medium780.30.7690
5-Band Windward/Leeward Med/High722.70.8302
5-Band Windward/Leeward High686.90.8735
Windward/Leeward 60-40 Low1166.70.5143
Windward/Leeward 60-40 Low/Med899.20.6672
Windward/Leeward 60-40 Medium801.40.7487
Windward/Leeward 60-40 Med/High753.40.7963
Windward/Leeward 60-40 High726.10.8263
5-Band AP Low873.60.6868
5-Band AP Low/Med714.20.8400
5-Band AP Medium641.50.9353
5-Band AP Med/High597.51.0041
5-Band AP High565.91.0602
5-Band SF Bay Tour - Low1012.50.5926
5-Band SF Bay Tour - Low/Med852.50.7038
5-Band SF Bay Tour - Medium758.00.7915
5-Band SF Bay Tour - Med/High707.00.8486
5-Band SF Bay Tour - High672.10.8927
Chicago-Mac Upwind0.7999
Chicago-Mac All Purpose0.8322
Chicago-Mac Downwind0.8607
Bayview-Mac Cove Island0.6310
Bayview-Mac Shore0.6361
Harvest Moon Regatta558.71.0739
Double HandedClub Certificate2025
ROYAL FLUSHRSA-668
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassQUARTER TONMeasurementHINPlan reviewHull constructionCoredCarbon rudderYesLight stanchionsNoTrim tabNo
LOA7.850Max. Beam2.950Draft1.681Displacement1,190Wetted area10.53IMS L5.986LSM05.485Acc. length7.850Sink (kg/mm) 7.84
VCGD-0.137VCGM-0.056RM Rated (kg·m) 25.3Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1Checkstays0Spreaders2Rotating mastNo
P10.065IG8.545ISP8.660MDT10.070MDL10.105MDT2MDL2TLTaperMW0.105GO0.125
E3.548J2.720BAS1.110FSDNo FoilSFJ-0.200SPL2.950WPLTPS2.660BD0.110MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date14/03/2024
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
ROYAL FLUSHRSA-668
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM10.140.641.162.062.8219.8327/02/2024
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ20.080.410.771.452.162.858.66YesNo 12.6117/05/20242024/05AP0.090.410.711.311.932.578.56NoNo 11.2827/02/2024
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS28.638.638.634.964.9435.6417/05/20242024/05