Non Spin/HSFClub 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 Angles43.5°43.5°41.0°39.8°39.8°40.1°40.3°41.0°42.4°
Beat VMG1.932.683.263.613.753.813.843.863.78
52°3.024.084.845.295.505.585.635.685.66
60°3.204.295.065.505.725.805.865.935.93
75°3.264.425.255.705.956.086.166.276.32
90°3.164.325.195.746.046.256.396.596.70
110°2.833.974.915.606.026.316.587.027.30
120°2.633.734.685.415.896.216.507.057.53
135°2.243.264.204.975.585.986.276.857.46
150°1.902.833.724.505.165.686.046.597.17
Run VMG1.642.463.264.004.665.255.716.326.87
Gybe Angles154.1°154.1°160.4°171.2°172.6°173.9°179.7°177.2°176.8°
APH ToD:734.5CDL: 5.784APH ToT: 0.8169CertNo:ZAN011
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 FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail4.63Storm Jib2.44Heavy Weather Jib6.59
SAIL LIMITS
Headsails5
✱ Zero set flying
Spinnakers0
✱ Spinnaker pole aboard
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.
Non Spin/HSFClub 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 VMG1865.51345.01104.0996.3959.2944.9937.4933.3952.5
52°1191.3881.9743.9679.9655.1645.5639.5633.3635.7
60°1126.5838.3711.6654.0629.9620.5614.4607.3606.6
75°1103.1814.2686.3631.4605.3591.8584.6574.4570.0
90°1140.9833.4693.2627.6595.8576.2563.1546.5537.1
110°1270.2906.2732.6642.4597.6570.2547.5512.7493.1
120°1368.5964.9769.6664.9610.8579.3553.8510.5478.1
135°1608.41103.3856.8723.9645.4602.1573.8525.5482.3
150°1893.71271.9966.9800.3697.4633.7596.4546.2501.9
Run VMG2190.41463.21103.6899.7771.8685.7630.2569.7524.4
Selected Courses
Windward / Leeward2023.71404.11103.8948.0865.5815.3783.8751.5738.5
All purpose1525.81079.0865.8758.5703.7672.6652.6627.0613.4
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward908.80.6602
All purpose734.50.8169
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance801.50.7486
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2179.41410.01040.1855.1753.8699.0658.1593.7576.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.5817
Downwind "popa"0.6858
70% up, 30% down "Ilhabela"0.6095
30% up, 70% down "Ilhabela-inverso"0.6509
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Predominantly Upwind791.70.7579
Predominantly Downwind753.80.7960
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low972.40.6170
Triple Number AP Medium727.80.8244
Triple Number AP High648.00.9259
Triple Number Windward/Leeward Low1315.80.4560
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Single Number Predominant Upwind826.10.7263
Single Number Predominant Reaching734.40.8170
Single Number Predominant Downwind796.80.7530
Predominant Upwind - Low1151.30.5211
Predominant Upwind - Low/Med867.30.6918
Predominant Upwind - Medium764.00.7854
Predominant Upwind - Med/High718.10.8355
Predominant Upwind - High701.60.8552
Predominant Downwind Low1240.90.4835
Predominant Downwind Low/Med876.60.6845
Predominant Downwind Medium721.00.8322
Predominant Downwind Med/High631.60.9499
Predominant Downwind High589.11.0185
Predominant Reaching Low1063.70.5641
Predominant Reaching Low/Med785.60.7637
Predominant Reaching Medium675.70.8880
Predominant Reaching Med/High618.00.9708
Predominant Reaching High590.61.0160
SA/DSPL Upwind16.70SA/DSPL Downwind16.70
Scoring OptionTODTOT
5-Band Windward/Leeward Low1485.00.4040
5-Band Windward/Leeward Low/Med1057.90.5672
5-Band Windward/Leeward Medium883.80.6789
5-Band Windward/Leeward Med/High790.50.7590
5-Band Windward/Leeward High754.80.7949
Windward/Leeward 60-40 Low1471.00.4079
Windward/Leeward 60-40 Low/Med1062.40.5648
Windward/Leeward 60-40 Medium901.60.6655
Windward/Leeward 60-40 Med/High820.40.7314
Windward/Leeward 60-40 High791.30.7582
5-Band AP Low1099.30.5458
5-Band AP Low/Med835.40.7182
5-Band AP Medium716.80.8370
5-Band AP Med/High656.00.9147
5-Band AP High629.10.9537
5-Band SF Bay Tour - Low1267.20.4735
5-Band SF Bay Tour - Low/Med1012.60.5926
5-Band SF Bay Tour - Medium856.60.7004
5-Band SF Bay Tour - Med/High776.80.7724
5-Band SF Bay Tour - High745.50.8048
Chicago-Mac Upwind0.7047
Chicago-Mac All Purpose0.7176
Chicago-Mac Downwind0.7223
Bayview-Mac Cove Island0.5090
Bayview-Mac Shore0.5145
Harvest Moon Regatta625.80.9587
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance801.50.7486
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2179.41410.01040.1855.1753.8699.0658.1593.7576.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance801.50.7486
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2179.41410.01040.1855.1753.8699.0658.1593.7576.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance801.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2179.41410.01040.1855.1753.8699.0658.1593.7576.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)801.50.7486
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2179.41410.01040.1855.1753.8699.0658.1593.7576.5
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7486
Triple Number Coastal/Long Distance Low0.6170
Triple Number Coastal/Long Distance Medium0.8245
Triple Number Coastal/Long Distance High0.9259
Triple Number Windward/Leeward Low0.4785
Triple Number Windward/Leeward Medium0.6664
Triple Number Windward/Leeward High0.7697
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2179.41410.01040.1855.1753.8699.0658.1593.7576.5
For information
General Purpose Handicap (GPH)830.3
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance801.50.7486
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2179.41410.01040.1855.1753.8699.0658.1593.7576.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance801.50.7486
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2179.41410.01040.1855.1753.8699.0658.1593.7576.5
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance801.50.7486
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2179.41410.01040.1855.1753.8699.0658.1593.7576.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low972.4
Triple Number Coastal/Long Distance Medium727.7
Triple Number Coastal/Long Distance High648.0
Triple Number Windward/Leeward Low1253.9
Triple Number Windward/Leeward Medium900.4
Triple Number Windward/Leeward High779.5
Predominantly Upwind791.7
Predominantly Downwind753.8
Predominantly Reaching716.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance801.50.7486
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2179.41410.01040.1855.1753.8699.0658.1593.7576.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6170
Triple Number Coastal/Long Distance Medium0.8245
Triple Number Coastal/Long Distance High0.9259
Triple Number Windward/Leeward Low0.4785
Triple Number Windward/Leeward Medium0.6664
Triple Number Windward/Leeward High0.7697
Coastal/Long Distance0.7486
Predominantly Upwind0.7579
Predominantly Downwind0.7960
For information
General Purpose Handicap (GPH)830.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8169
Distanseseilas Trippeltall svak vind0.6170
Distanseseilas Trippeltall mellomvind0.8245
Distanseseilas Trippeltall sterk vind0.9259
Pølsebane Trippeltall svak vind0.4785
Pølsebane Trippeltall mellomvind0.6664
Pølsebane Trippeltall sterk vind0.7697
Motvind Singeltall0.7579
Medvind Singeltall0.7960
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Coastal/Long Distance801.50.7486
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind791.70.7579
Predominantly Downwind753.80.7960
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore742.40.8082
Cape Doctor Coastal617.50.9717
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6170
Triple Number Coastal/Long Distance Medium0.8245
Triple Number Coastal/Long Distance High0.9259
Triple Number Windward/Leeward Low0.4785
Triple Number Windward/Leeward Medium0.6664
Triple Number Windward/Leeward High0.7697
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6170
Triple Number Coastal/Long Distance Medium0.8245
Triple Number Coastal/Long Distance High0.9259
Triple Number Windward/Leeward Low0.4785
Triple Number Windward/Leeward Medium0.6664
Triple Number Windward/Leeward High0.7697
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance801.50.7486
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Predominantly Upwind791.70.7579
Predominantly Downwind753.80.7960
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2179.41410.01040.1855.1753.8699.0658.1593.7576.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance801.50.7486
Triple Number Coastal/Long Distance Low972.40.6170
Triple Number Coastal/Long Distance Medium727.70.8245
Triple Number Coastal/Long Distance High648.00.9259
Triple Number Windward/Leeward Low1253.90.4785
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2179.41410.01040.1855.1753.8699.0658.1593.7576.5
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low972.40.6170
Triple Number AP Medium727.80.8244
Triple Number AP High648.00.9259
Triple Number Windward/Leeward Low1315.80.4560
Triple Number Windward/Leeward Medium900.40.6664
Triple Number Windward/Leeward High779.50.7697
Single Number Predominant Upwind826.10.7263
Single Number Predominant Reaching734.40.8170
Single Number Predominant Downwind796.80.7530
Predominant Upwind - Low1151.30.5211
Predominant Upwind - Low/Med867.30.6918
Predominant Upwind - Medium764.00.7854
Predominant Upwind - Med/High718.10.8355
Predominant Upwind - High701.60.8552
Predominant Downwind Low1240.90.4835
Predominant Downwind Low/Med876.60.6845
Predominant Downwind Medium721.00.8322
Predominant Downwind Med/High631.60.9499
Predominant Downwind High589.11.0185
Predominant Reaching Low1063.70.5641
Predominant Reaching Low/Med785.60.7637
Predominant Reaching Medium675.70.8880
Predominant Reaching Med/High618.00.9708
Predominant Reaching High590.61.0160
SA/DSPL Upwind16.70SA/DSPL Downwind16.70
Scoring OptionTODTOT
5-Band Windward/Leeward Low1485.00.4040
5-Band Windward/Leeward Low/Med1057.90.5672
5-Band Windward/Leeward Medium883.80.6789
5-Band Windward/Leeward Med/High790.50.7590
5-Band Windward/Leeward High754.80.7949
Windward/Leeward 60-40 Low1471.00.4079
Windward/Leeward 60-40 Low/Med1062.40.5648
Windward/Leeward 60-40 Medium901.60.6655
Windward/Leeward 60-40 Med/High820.40.7314
Windward/Leeward 60-40 High791.30.7582
5-Band AP Low1099.30.5458
5-Band AP Low/Med835.40.7182
5-Band AP Medium716.80.8370
5-Band AP Med/High656.00.9147
5-Band AP High629.10.9537
5-Band SF Bay Tour - Low1267.20.4735
5-Band SF Bay Tour - Low/Med1012.60.5926
5-Band SF Bay Tour - Medium856.60.7004
5-Band SF Bay Tour - Med/High776.80.7724
5-Band SF Bay Tour - High745.50.8048
Chicago-Mac Upwind0.7047
Chicago-Mac All Purpose0.7176
Chicago-Mac Downwind0.7223
Bayview-Mac Cove Island0.5090
Bayview-Mac Shore0.5145
Harvest Moon Regatta625.80.9587
Non Spin/HSFClub 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 L6.720LSM06.633Acc. 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
Non Spin/HSFClub 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