Club Certificate2025
AstraRSA-4763
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 Angles43.4°43.4°41.0°39.8°39.9°40.1°40.3°41.0°42.3°
Beat VMG1.932.683.263.613.763.813.843.863.79
52°3.024.084.845.305.505.585.635.695.67
60°3.194.295.065.515.725.815.865.935.94
75°3.264.425.245.705.956.096.166.276.32
90°3.464.655.465.836.046.246.406.596.71
110°3.454.715.616.066.336.526.686.937.14
120°3.124.435.506.046.386.686.927.267.54
135°2.793.964.985.786.216.586.957.698.45
150°2.343.404.385.235.886.266.617.378.41
Run VMG2.022.943.804.545.245.736.116.767.48
Gybe Angles147.6°147.6°151.6°153.2°161.1°169.4°177.1°176.8°169.4°
APH ToD:700.3CDL: 5.789APH ToT: 0.8568CertNo:ZAC011
BOAT
ClassTumlarenDesignerKnud H. ReimersBuilderUnknownAge date01/1934Series date01/1934Offset fileastra.offData fileRSA4763
HULL
Length Overall8.281 mMaximum Beam1.878 mDraft1.280 mDisplacement1,814 kgDLR6.2142IMS DivisionSportboatDynamic Allowance0.410%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight250 kg(declared)Minimum weight130 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail15.3715.68Headsail Luffed9.509.50Headsail FlyingSymmetric35.0935.09Asymmetric
STORM SAIL AREAS (m²)
Trysail4.63Storm Jib2.44Heavy Weather Jib6.59
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
079 045 1318
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.
Club Certificate2025
AstraRSA-4763
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 VMG1866.61345.61104.3996.0958.4943.9936.4932.1950.9
52°1191.7882.3744.0679.7654.7645.0639.0632.7635.1
60°1127.2838.7711.7653.8629.6620.1614.1606.9606.1
75°1103.8814.6686.5631.4605.2591.6584.3574.1569.6
90°1041.3774.0659.6618.0596.2576.5562.9546.3536.8
110°1044.4764.8641.4593.8568.6551.8539.3519.4504.4
120°1155.4812.0654.9596.5564.0539.0520.2496.0477.6
135°1290.5909.5723.3622.5579.6547.0517.8468.3425.9
150°1539.31059.0822.3688.8612.7575.4544.8488.4428.2
Run VMG1783.41222.8948.4793.1687.6627.8589.2532.5481.4
Selected Courses
Windward / Leeward1823.01284.21026.3894.5823.0785.9762.8732.3716.2
All purpose1377.6987.6805.2718.0674.8651.3635.0611.4596.6
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward862.70.6955
All purpose700.30.8568
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance761.30.7881
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1930.01278.1963.5807.0721.2675.7639.2580.3564.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.5820
Downwind "popa"0.7776
70% up, 30% down "Ilhabela"0.6295
30% up, 70% down "Ilhabela-inverso"0.7064
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Predominantly Upwind771.60.7776
Predominantly Downwind692.80.8661
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low896.40.6693
Triple Number AP Medium694.30.8642
Triple Number AP High630.20.9520
Triple Number Windward/Leeward Low1209.10.4963
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Single Number Predominant Upwind804.10.7462
Single Number Predominant Reaching692.60.8663
Single Number Predominant Downwind726.20.8263
Predominant Upwind - Low1098.30.5463
Predominant Upwind - Low/Med839.20.7150
Predominant Upwind - Medium747.90.8022
Predominant Upwind - Med/High707.60.8479
Predominant Upwind - High691.60.8675
Predominant Downwind Low1076.80.5572
Predominant Downwind Low/Med786.90.7625
Predominant Downwind Medium667.30.8991
Predominant Downwind Med/High597.21.0047
Predominant Downwind High557.11.0770
Predominant Reaching Low960.20.6248
Predominant Reaching Low/Med731.40.8203
Predominant Reaching Medium646.10.9287
Predominant Reaching Med/High598.21.0031
Predominant Reaching High571.21.0503
SA/DSPL Upwind16.70SA/DSPL Downwind33.86
Scoring OptionTODTOT
5-Band Windward/Leeward Low1354.90.4428
5-Band Windward/Leeward Low/Med987.80.6074
5-Band Windward/Leeward Medium840.60.7137
5-Band Windward/Leeward Med/High766.60.7827
5-Band Windward/Leeward High734.80.8166
Windward/Leeward 60-40 Low1367.00.4389
Windward/Leeward 60-40 Low/Med1006.30.5963
Windward/Leeward 60-40 Medium867.00.6921
Windward/Leeward 60-40 Med/High801.00.7490
Windward/Leeward 60-40 High775.00.7742
5-Band AP Low992.30.6047
5-Band AP Low/Med782.10.7672
5-Band AP Medium685.60.8752
5-Band AP Med/High637.10.9417
5-Band AP High612.90.9789
5-Band SF Bay Tour - Low1167.60.5139
5-Band SF Bay Tour - Low/Med947.90.6330
5-Band SF Bay Tour - Medium816.50.7349
5-Band SF Bay Tour - Med/High752.50.7974
5-Band SF Bay Tour - High723.70.8291
Chicago-Mac Upwind0.7253
Chicago-Mac All Purpose0.7624
Chicago-Mac Downwind0.7966
Bayview-Mac Cove Island0.5549
Bayview-Mac Shore0.5589
Harvest Moon Regatta598.81.0019
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance761.30.7881
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1930.01278.1963.5807.0721.2675.7639.2580.3564.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance761.30.7881
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1930.01278.1963.5807.0721.2675.7639.2580.3564.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance761.3
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1930.01278.1963.5807.0721.2675.7639.2580.3564.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)761.30.7881
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1930.01278.1963.5807.0721.2675.7639.2580.3564.3
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7881
Triple Number Coastal/Long Distance Low0.6693
Triple Number Coastal/Long Distance Medium0.8643
Triple Number Coastal/Long Distance High0.9520
Triple Number Windward/Leeward Low0.5194
Triple Number Windward/Leeward Medium0.7022
Triple Number Windward/Leeward High0.7925
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1930.01278.1963.5807.0721.2675.7639.2580.3564.3
For information
General Purpose Handicap (GPH)785.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance761.30.7881
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1930.01278.1963.5807.0721.2675.7639.2580.3564.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance761.30.7881
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1930.01278.1963.5807.0721.2675.7639.2580.3564.3
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance761.30.7881
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1930.01278.1963.5807.0721.2675.7639.2580.3564.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low896.5
Triple Number Coastal/Long Distance Medium694.2
Triple Number Coastal/Long Distance High630.3
Triple Number Windward/Leeward Low1155.2
Triple Number Windward/Leeward Medium854.5
Triple Number Windward/Leeward High757.1
Predominantly Upwind771.6
Predominantly Downwind692.8
Predominantly Reaching670.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance761.30.7881
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1930.01278.1963.5807.0721.2675.7639.2580.3564.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6693
Triple Number Coastal/Long Distance Medium0.8643
Triple Number Coastal/Long Distance High0.9520
Triple Number Windward/Leeward Low0.5194
Triple Number Windward/Leeward Medium0.7022
Triple Number Windward/Leeward High0.7925
Coastal/Long Distance0.7881
Predominantly Upwind0.7776
Predominantly Downwind0.8661
For information
General Purpose Handicap (GPH)785.2
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8568
Distanseseilas Trippeltall svak vind0.6693
Distanseseilas Trippeltall mellomvind0.8643
Distanseseilas Trippeltall sterk vind0.9520
Pølsebane Trippeltall svak vind0.5194
Pølsebane Trippeltall mellomvind0.7022
Pølsebane Trippeltall sterk vind0.7925
Motvind Singeltall0.7776
Medvind Singeltall0.8661
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Coastal/Long Distance761.30.7881
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind771.60.7776
Predominantly Downwind692.80.8661
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore721.00.8322
Cape Doctor Coastal601.10.9982
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6693
Triple Number Coastal/Long Distance Medium0.8643
Triple Number Coastal/Long Distance High0.9520
Triple Number Windward/Leeward Low0.5194
Triple Number Windward/Leeward Medium0.7022
Triple Number Windward/Leeward High0.7925
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6693
Triple Number Coastal/Long Distance Medium0.8643
Triple Number Coastal/Long Distance High0.9520
Triple Number Windward/Leeward Low0.5194
Triple Number Windward/Leeward Medium0.7022
Triple Number Windward/Leeward High0.7925
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance761.30.7881
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Predominantly Upwind771.60.7776
Predominantly Downwind692.80.8661
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1930.01278.1963.5807.0721.2675.7639.2580.3564.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance761.30.7881
Triple Number Coastal/Long Distance Low896.50.6693
Triple Number Coastal/Long Distance Medium694.20.8643
Triple Number Coastal/Long Distance High630.30.9520
Triple Number Windward/Leeward Low1155.20.5194
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1930.01278.1963.5807.0721.2675.7639.2580.3564.3
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low896.40.6693
Triple Number AP Medium694.30.8642
Triple Number AP High630.20.9520
Triple Number Windward/Leeward Low1209.10.4963
Triple Number Windward/Leeward Medium854.50.7022
Triple Number Windward/Leeward High757.10.7925
Single Number Predominant Upwind804.10.7462
Single Number Predominant Reaching692.60.8663
Single Number Predominant Downwind726.20.8263
Predominant Upwind - Low1098.30.5463
Predominant Upwind - Low/Med839.20.7150
Predominant Upwind - Medium747.90.8022
Predominant Upwind - Med/High707.60.8479
Predominant Upwind - High691.60.8675
Predominant Downwind Low1076.80.5572
Predominant Downwind Low/Med786.90.7625
Predominant Downwind Medium667.30.8991
Predominant Downwind Med/High597.21.0047
Predominant Downwind High557.11.0770
Predominant Reaching Low960.20.6248
Predominant Reaching Low/Med731.40.8203
Predominant Reaching Medium646.10.9287
Predominant Reaching Med/High598.21.0031
Predominant Reaching High571.21.0503
SA/DSPL Upwind16.70SA/DSPL Downwind33.86
Scoring OptionTODTOT
5-Band Windward/Leeward Low1354.90.4428
5-Band Windward/Leeward Low/Med987.80.6074
5-Band Windward/Leeward Medium840.60.7137
5-Band Windward/Leeward Med/High766.60.7827
5-Band Windward/Leeward High734.80.8166
Windward/Leeward 60-40 Low1367.00.4389
Windward/Leeward 60-40 Low/Med1006.30.5963
Windward/Leeward 60-40 Medium867.00.6921
Windward/Leeward 60-40 Med/High801.00.7490
Windward/Leeward 60-40 High775.00.7742
5-Band AP Low992.30.6047
5-Band AP Low/Med782.10.7672
5-Band AP Medium685.60.8752
5-Band AP Med/High637.10.9417
5-Band AP High612.90.9789
5-Band SF Bay Tour - Low1167.60.5139
5-Band SF Bay Tour - Low/Med947.90.6330
5-Band SF Bay Tour - Medium816.50.7349
5-Band SF Bay Tour - Med/High752.50.7974
5-Band SF Bay Tour - High723.70.8291
Chicago-Mac Upwind0.7253
Chicago-Mac All Purpose0.7624
Chicago-Mac Downwind0.7966
Bayview-Mac Cove Island0.5549
Bayview-Mac Shore0.5589
Harvest Moon Regatta598.81.0019
Club Certificate2025
AstraRSA-4763
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassTumlarenMeasurement11/09/2022HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.281Max. Beam1.878Draft1.280Displacement1,814Wetted area13.33IMS L6.723LSM06.633Acc. length6.104Sink (kg/mm) 7.08
VCGD-0.215VCGM-0.206RM Rated (kg·m) 13.5Limit of positive stability(°) N/AStability IndexN/ADefault crew weight383Declared crew weight250
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionFixedInner stayNone FittedMast materialSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders1Rotating mastNo
P8.610IG6.985ISP7.302MDT10.084MDL10.115MDT2MDL2TLTaperMWGO
E3.070J1.890BAS0.855FSDNo FoilSFJ1.745SPL2.035WPLTPSBD0.101MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date15/09/2022
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
AstraRSA-4763
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment00.160.621.101.882.5515.3711/09/2022
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.050.370.711.402.142.836.69NoNo 9.5011/09/2022
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment08.238.238.235.174.9035.0911/09/2022