Non Spin/HSFClub Certificate2025
AFRICAN SKIMMERRSA-4177
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 Angles43.9°43.9°41.5°39.9°38.7°37.9°37.6°37.4°37.8°
Beat VMG2.393.384.224.865.275.455.555.645.63
52°3.765.176.287.057.507.697.797.907.93
60°3.995.456.557.277.697.918.028.168.21
75°4.105.606.727.427.848.148.368.618.77
90°3.935.446.617.387.848.188.519.039.35
110°3.324.745.996.977.628.068.469.2810.10
120°3.064.435.666.677.417.908.309.1410.11
135°2.593.835.006.016.867.507.938.729.61
150°2.173.264.325.306.166.927.508.309.08
Run VMG1.882.823.754.625.436.196.887.878.60
Gybe Angles148.4°148.4°151.4°156.1°172.6°173.9°175.0°177.7°177.1°
APH ToD:571.3CDL: 10.400APH ToT: 1.0502CertNo:ZAN287
BOAT
ClassDIDI 40DesignerDUDLEY DIXBuilderB SWARTAge date01/2009Series date01/2009Offset filedidi40DV.offData fileRSA-4177
HULL
Length Overall12.070 mMaximum Beam3.398 mDraft2.367 mDisplacement6,190 kgDLR4.5644IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.417m
CREW
Maximum weight796 kg(default)Minimum weight666 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail39.6340.25Headsail Luffed33.3033.30Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail11.90Storm Jib10.12Heavy Weather Jib27.30
SAIL LIMITS
Headsails6
✱ Zero set flying
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
AFRICAN SKIMMERRSA-4177
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 VMG1504.91064.0852.2740.7683.6660.7648.7637.9639.7
52°958.5695.7573.0510.3480.2468.0462.1455.7453.9
60°901.5660.2549.8495.2468.1455.3449.1441.4438.5
75°877.5642.3535.4485.2459.4442.3430.6417.9410.6
90°914.9661.8544.3487.7459.4440.0422.9398.5385.0
110°1085.2759.6601.5516.8472.3446.8425.7387.8356.4
120°1175.2812.7635.8540.0485.7455.9433.8393.9356.1
135°1387.7939.6719.7598.9524.8480.3453.7412.8374.8
150°1655.51104.7832.7679.5584.1520.4479.8434.0396.6
Run VMG1912.31275.6960.4779.9663.0581.3523.2457.6418.5
Selected Courses
Windward / Leeward1706.41169.8906.3760.3673.3621.0585.9547.7529.1
All purpose1274.6888.4700.9600.2543.1510.0488.1460.5442.3
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward713.40.8411
All purpose571.31.0502
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.40.9564
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1861.41180.4853.2681.8581.1530.4494.0441.4421.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7943
Downwind "popa"0.8014
70% up, 30% down "Ilhabela"0.7964
30% up, 70% down "Ilhabela-inverso"0.7992
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Predominantly Upwind600.80.9987
Predominantly Downwind611.30.9816
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low794.70.7550
Triple Number AP Medium567.11.0581
Triple Number AP High483.21.2416
Triple Number Windward/Leeward Low1090.50.5502
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Single Number Predominant Upwind629.10.9538
Single Number Predominant Reaching577.11.0397
Single Number Predominant Downwind647.30.9269
Predominant Upwind - Low929.70.6454
Predominant Upwind - Low/Med677.10.8861
Predominant Upwind - Medium574.21.0449
Predominant Upwind - Med/High522.91.1475
Predominant Upwind - High502.51.1940
Predominant Downwind Low1047.20.5730
Predominant Downwind Low/Med725.20.8274
Predominant Downwind Medium581.41.0320
Predominant Downwind Med/High493.11.2168
Predominant Downwind High449.91.3337
Predominant Reaching Low873.10.6872
Predominant Reaching Low/Med629.10.9537
Predominant Reaching Medium526.51.1395
Predominant Reaching Med/High467.71.2828
Predominant Reaching High438.21.3692
SA/DSPL Upwind21.50SA/DSPL Downwind21.50
Scoring OptionTODTOT
5-Band Windward/Leeward Low1238.60.4844
5-Band Windward/Leeward Low/Med859.30.6983
5-Band Windward/Leeward Medium691.20.8681
5-Band Windward/Leeward Med/High592.81.0122
5-Band Windward/Leeward High551.11.0887
Windward/Leeward 60-40 Low1215.20.4938
Windward/Leeward 60-40 Low/Med851.20.7048
Windward/Leeward 60-40 Medium693.00.8658
Windward/Leeward 60-40 Med/High604.60.9924
Windward/Leeward 60-40 High568.91.0547
5-Band AP Low910.30.6591
5-Band AP Low/Med669.70.8959
5-Band AP Medium555.61.0799
5-Band AP Med/High491.81.2201
5-Band AP High462.11.2983
5-Band SF Bay Tour - Low1046.10.5735
5-Band SF Bay Tour - Low/Med814.80.7363
5-Band SF Bay Tour - Medium662.30.9059
5-Band SF Bay Tour - Med/High576.91.0400
5-Band SF Bay Tour - High541.01.1090
Chicago-Mac Upwind0.9181
Chicago-Mac All Purpose0.9061
Chicago-Mac Downwind0.8826
Bayview-Mac Cove Island0.6225
Bayview-Mac Shore0.6307
Harvest Moon Regatta489.31.2262
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.40.9564
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1861.41180.4853.2681.8581.1530.4494.0441.4421.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.40.9564
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1861.41180.4853.2681.8581.1530.4494.0441.4421.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance627.4
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1861.41180.4853.2681.8581.1530.4494.0441.4421.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating627.40.9564
FinRating, kevyt tuuli1224.70.8165
FinRating, kova tuuli465.21.0748
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9564
Triple Number Coastal/Long Distance Low0.7550
Triple Number Coastal/Long Distance Medium1.0582
Triple Number Coastal/Long Distance High1.2416
Triple Number Windward/Leeward Low0.5780
Triple Number Windward/Leeward Medium0.8467
Triple Number Windward/Leeward High1.0338
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1861.41180.4853.2681.8581.1530.4494.0441.4421.1
For information
General Purpose Handicap (GPH)653.1
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.40.9564
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1861.41180.4853.2681.8581.1530.4494.0441.4421.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.40.9564
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1861.41180.4853.2681.8581.1530.4494.0441.4421.1
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.40.9564
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1861.41180.4853.2681.8581.1530.4494.0441.4421.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low794.7
Triple Number Coastal/Long Distance Medium567.0
Triple Number Coastal/Long Distance High483.2
Triple Number Windward/Leeward Low1038.1
Triple Number Windward/Leeward Medium708.6
Triple Number Windward/Leeward High580.4
Predominantly Upwind600.8
Predominantly Downwind611.3
Predominantly Reaching569.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.40.9564
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1861.41180.4853.2681.8581.1530.4494.0441.4421.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7550
Triple Number Coastal/Long Distance Medium1.0582
Triple Number Coastal/Long Distance High1.2416
Triple Number Windward/Leeward Low0.5780
Triple Number Windward/Leeward Medium0.8467
Triple Number Windward/Leeward High1.0338
Coastal/Long Distance0.9564
Predominantly Upwind0.9987
Predominantly Downwind0.9816
For information
General Purpose Handicap (GPH)653.1
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0502
Distanseseilas Trippeltall svak vind0.7550
Distanseseilas Trippeltall mellomvind1.0582
Distanseseilas Trippeltall sterk vind1.2416
Pølsebane Trippeltall svak vind0.5780
Pølsebane Trippeltall mellomvind0.8467
Pølsebane Trippeltall sterk vind1.0338
Motvind Singeltall0.9987
Medvind Singeltall0.9816
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Coastal/Long Distance627.40.9564
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind600.80.9987
Predominantly Downwind611.30.9816
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore534.71.1222
Cape Doctor Coastal447.81.3400
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7550
Triple Number Coastal/Long Distance Medium1.0582
Triple Number Coastal/Long Distance High1.2416
Triple Number Windward/Leeward Low0.5780
Triple Number Windward/Leeward Medium0.8467
Triple Number Windward/Leeward High1.0338
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7550
Triple Number Coastal/Long Distance Medium1.0582
Triple Number Coastal/Long Distance High1.2416
Triple Number Windward/Leeward Low0.5780
Triple Number Windward/Leeward Medium0.8467
Triple Number Windward/Leeward High1.0338
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.40.9564
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Predominantly Upwind600.80.9987
Predominantly Downwind611.30.9816
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1861.41180.4853.2681.8581.1530.4494.0441.4421.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.40.9564
Triple Number Coastal/Long Distance Low794.70.7550
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High483.21.2416
Triple Number Windward/Leeward Low1038.10.5780
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1861.41180.4853.2681.8581.1530.4494.0441.4421.1
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low794.70.7550
Triple Number AP Medium567.11.0581
Triple Number AP High483.21.2416
Triple Number Windward/Leeward Low1090.50.5502
Triple Number Windward/Leeward Medium708.60.8467
Triple Number Windward/Leeward High580.41.0338
Single Number Predominant Upwind629.10.9538
Single Number Predominant Reaching577.11.0397
Single Number Predominant Downwind647.30.9269
Predominant Upwind - Low929.70.6454
Predominant Upwind - Low/Med677.10.8861
Predominant Upwind - Medium574.21.0449
Predominant Upwind - Med/High522.91.1475
Predominant Upwind - High502.51.1940
Predominant Downwind Low1047.20.5730
Predominant Downwind Low/Med725.20.8274
Predominant Downwind Medium581.41.0320
Predominant Downwind Med/High493.11.2168
Predominant Downwind High449.91.3337
Predominant Reaching Low873.10.6872
Predominant Reaching Low/Med629.10.9537
Predominant Reaching Medium526.51.1395
Predominant Reaching Med/High467.71.2828
Predominant Reaching High438.21.3692
SA/DSPL Upwind21.50SA/DSPL Downwind21.50
Scoring OptionTODTOT
5-Band Windward/Leeward Low1238.60.4844
5-Band Windward/Leeward Low/Med859.30.6983
5-Band Windward/Leeward Medium691.20.8681
5-Band Windward/Leeward Med/High592.81.0122
5-Band Windward/Leeward High551.11.0887
Windward/Leeward 60-40 Low1215.20.4938
Windward/Leeward 60-40 Low/Med851.20.7048
Windward/Leeward 60-40 Medium693.00.8658
Windward/Leeward 60-40 Med/High604.60.9924
Windward/Leeward 60-40 High568.91.0547
5-Band AP Low910.30.6591
5-Band AP Low/Med669.70.8959
5-Band AP Medium555.61.0799
5-Band AP Med/High491.81.2201
5-Band AP High462.11.2983
5-Band SF Bay Tour - Low1046.10.5735
5-Band SF Bay Tour - Low/Med814.80.7363
5-Band SF Bay Tour - Medium662.30.9059
5-Band SF Bay Tour - Med/High576.91.0400
5-Band SF Bay Tour - High541.01.1090
Chicago-Mac Upwind0.9181
Chicago-Mac All Purpose0.9061
Chicago-Mac Downwind0.8826
Bayview-Mac Cove Island0.6225
Bayview-Mac Shore0.6307
Harvest Moon Regatta489.31.2262
Non Spin/HSFClub Certificate2025
AFRICAN SKIMMERRSA-4177
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDIDI 40Measurement26/06/2025HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA12.070Max. Beam3.398Draft2.367Displacement6,190Wetted area32.77IMS L11.255LSM011.068Acc. length11.043Sink (kg/mm) 21.98
VCGD-0.071VCGM-0.139RM Rated (kg·m) 154.4Limit of positive stability(°) N/AStability IndexN/ADefault crew weight796Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.417PBW0.133PIPA0.0040
PSD0.025PHD0.070PHL0.101
PSAESL1.020
ST10.017ST20.110ST30.105
ST40.060ST50.165
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P14.220IG14.220ISP15.760MDT10.115MDL10.198MDT2MDL2TLTaperMW0.198GO0.198
E4.780J4.080BAS1.660FSDNo FoilSFJ0.000SPL4.274WPLTPS4.680BD0.198MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date03/07/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Non Spin/HSFClub Certificate2025
AFRICAN SKIMMERRSA-4177
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM10.351.031.742.933.9239.63
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ10.060.671.292.423.454.3814.30YesNo 33.30J20.060.531.022.063.164.2414.00YesNo 29.38