Double HandedClub Certificate2025
Sea LaughterRSA-2544
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 Angles44.3°44.3°42.2°41.2°40.4°39.9°39.8°41.0°43.5°
Beat VMG1.922.633.183.563.833.963.993.913.72
52°3.014.044.775.255.545.695.745.745.64
60°3.214.274.985.435.705.855.935.965.92
75°3.324.415.155.595.856.026.156.286.32
90°3.234.345.125.605.896.096.256.526.69
110°2.853.954.835.465.846.106.326.747.16
120°2.683.764.655.325.756.036.276.717.23
135°2.323.344.244.955.495.846.106.557.05
150°1.952.883.764.495.115.575.886.336.78
Run VMG1.692.503.283.984.605.145.566.096.51
Gybe Angles150.5°150.5°155.9°165.4°172.1°176.3°178.8°179.5°179.5°
APH ToD:738.6CDL: 5.699APH ToT: 0.8123CertNo:ZAD244
BOAT
ClassFlamencaDesignerBerckemeyerBuilderNebeAge date01/1971Series date01/1971Offset fileFlamenca25_DV.OFFData fileRSA2544
HULL
Length Overall7.500 mMaximum Beam2.302 mDraft1.249 mDisplacement1,900 kgDLR8.0773IMS DivisionCruiser/RacerDynamic Allowance0.420%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)
MeasuredRatedMainsail12.4512.58Headsail Luffed13.6113.61Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail4.06Storm Jib3.76Heavy Weather Jib10.14
SAIL LIMITS
Headsails5
✱ One set on the forestay
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.
Double HandedClub Certificate2025
Sea LaughterRSA-2544
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 VMG1875.61366.91132.01010.8940.0909.5902.8920.4968.8
52°1194.4890.3755.0685.8649.9632.7626.6626.8638.5
60°1123.0843.7722.4662.7631.9615.5607.5604.4608.5
75°1085.7815.8699.3644.1615.6597.7585.5573.5569.7
90°1114.3829.6703.8643.0611.7591.5575.7552.1538.4
110°1264.2911.5745.2659.0616.1590.1569.6534.4502.9
120°1342.5958.4774.5676.4625.7596.6574.6536.3498.0
135°1550.71078.8849.7726.8655.6616.2590.6549.9510.6
150°1844.41248.7957.7801.1704.9646.6612.4568.4530.9
Run VMG2135.41441.51098.9905.4783.1700.5647.4591.1553.0
Selected Courses
Windward / Leeward2001.11404.21115.4958.1861.5805.0775.1755.7760.9
All purpose1505.81078.0875.1768.3706.9672.4653.1634.2628.1
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward908.10.6607
All purpose738.60.8123
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance805.00.7453
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.91408.01050.3865.0755.0698.0659.9603.6589.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.5848
Downwind "popa"0.6809
70% up, 30% down "Ilhabela"0.6106
30% up, 70% down "Ilhabela-inverso"0.6489
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Predominantly Upwind791.40.7582
Predominantly Downwind760.20.7893
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low976.50.6144
Triple Number AP Medium732.80.8187
Triple Number AP High650.80.9219
Triple Number Windward/Leeward Low1318.70.4550
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Single Number Predominant Upwind825.60.7268
Single Number Predominant Reaching738.80.8121
Single Number Predominant Downwind800.60.7494
Predominant Upwind - Low1154.50.5197
Predominant Upwind - Low/Med875.60.6853
Predominant Upwind - Medium762.40.7870
Predominant Upwind - Med/High709.80.8453
Predominant Upwind - High701.20.8557
Predominant Downwind Low1224.60.4899
Predominant Downwind Low/Med878.50.6830
Predominant Downwind Medium727.90.8243
Predominant Downwind Med/High641.10.9359
Predominant Downwind High603.50.9942
Predominant Reaching Low1054.40.5690
Predominant Reaching Low/Med791.10.7585
Predominant Reaching Medium682.80.8787
Predominant Reaching Med/High624.40.9609
Predominant Reaching High599.31.0012
SA/DSPL Upwind16.95SA/DSPL Downwind16.95
Scoring OptionTODTOT
5-Band Windward/Leeward Low1482.40.4048
5-Band Windward/Leeward Low/Med1065.00.5634
5-Band Windward/Leeward Medium882.10.6802
5-Band Windward/Leeward Med/High784.20.7652
5-Band Windward/Leeward High760.00.7895
Windward/Leeward 60-40 Low1473.00.4073
Windward/Leeward 60-40 Low/Med1071.10.5602
Windward/Leeward 60-40 Medium897.60.6684
Windward/Leeward 60-40 Med/High809.30.7414
Windward/Leeward 60-40 High793.10.7565
5-Band AP Low1093.50.5487
5-Band AP Low/Med842.50.7122
5-Band AP Medium720.90.8323
5-Band AP Med/High657.60.9123
5-Band AP High636.40.9428
5-Band SF Bay Tour - Low1270.40.4723
5-Band SF Bay Tour - Low/Med1019.50.5885
5-Band SF Bay Tour - Medium854.60.7020
5-Band SF Bay Tour - Med/High770.30.7789
5-Band SF Bay Tour - High750.60.7993
Chicago-Mac Upwind0.7027
Chicago-Mac All Purpose0.7149
Chicago-Mac Downwind0.7196
Bayview-Mac Cove Island0.5120
Bayview-Mac Shore0.5173
Harvest Moon Regatta638.80.9392
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance805.00.7453
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.91408.01050.3865.0755.0698.0659.9603.6589.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance805.00.7453
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.91408.01050.3865.0755.0698.0659.9603.6589.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance805.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.91408.01050.3865.0755.0698.0659.9603.6589.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating805.00.7453
FinRating, kevyt tuuli1459.90.6850
FinRating, kova tuuli641.30.7797
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7453
Triple Number Coastal/Long Distance Low0.6144
Triple Number Coastal/Long Distance Medium0.8189
Triple Number Coastal/Long Distance High0.9219
Triple Number Windward/Leeward Low0.4763
Triple Number Windward/Leeward Medium0.6661
Triple Number Windward/Leeward High0.7739
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.91408.01050.3865.0755.0698.0659.9603.6589.6
For information
General Purpose Handicap (GPH)834.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance805.00.7453
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.91408.01050.3865.0755.0698.0659.9603.6589.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance805.00.7453
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.91408.01050.3865.0755.0698.0659.9603.6589.6
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance805.00.7453
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.91408.01050.3865.0755.0698.0659.9603.6589.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low976.6
Triple Number Coastal/Long Distance Medium732.7
Triple Number Coastal/Long Distance High650.8
Triple Number Windward/Leeward Low1259.7
Triple Number Windward/Leeward Medium900.8
Triple Number Windward/Leeward High775.3
Predominantly Upwind791.4
Predominantly Downwind760.2
Predominantly Reaching723.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance805.00.7453
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.91408.01050.3865.0755.0698.0659.9603.6589.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6144
Triple Number Coastal/Long Distance Medium0.8189
Triple Number Coastal/Long Distance High0.9219
Triple Number Windward/Leeward Low0.4763
Triple Number Windward/Leeward Medium0.6661
Triple Number Windward/Leeward High0.7739
Coastal/Long Distance0.7453
Predominantly Upwind0.7582
Predominantly Downwind0.7893
For information
General Purpose Handicap (GPH)834.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8123
Distanseseilas Trippeltall svak vind0.6144
Distanseseilas Trippeltall mellomvind0.8189
Distanseseilas Trippeltall sterk vind0.9219
Pølsebane Trippeltall svak vind0.4763
Pølsebane Trippeltall mellomvind0.6661
Pølsebane Trippeltall sterk vind0.7739
Motvind Singeltall0.7582
Medvind Singeltall0.7893
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Coastal/Long Distance805.00.7453
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind791.40.7582
Predominantly Downwind760.20.7893
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore759.40.7901
Cape Doctor Coastal629.90.9525
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6144
Triple Number Coastal/Long Distance Medium0.8189
Triple Number Coastal/Long Distance High0.9219
Triple Number Windward/Leeward Low0.4763
Triple Number Windward/Leeward Medium0.6661
Triple Number Windward/Leeward High0.7739
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6144
Triple Number Coastal/Long Distance Medium0.8189
Triple Number Coastal/Long Distance High0.9219
Triple Number Windward/Leeward Low0.4763
Triple Number Windward/Leeward Medium0.6661
Triple Number Windward/Leeward High0.7739
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance805.00.7453
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Predominantly Upwind791.40.7582
Predominantly Downwind760.20.7893
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.91408.01050.3865.0755.0698.0659.9603.6589.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance805.00.7453
Triple Number Coastal/Long Distance Low976.60.6144
Triple Number Coastal/Long Distance Medium732.70.8189
Triple Number Coastal/Long Distance High650.80.9219
Triple Number Windward/Leeward Low1259.70.4763
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.91408.01050.3865.0755.0698.0659.9603.6589.6
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low976.50.6144
Triple Number AP Medium732.80.8187
Triple Number AP High650.80.9219
Triple Number Windward/Leeward Low1318.70.4550
Triple Number Windward/Leeward Medium900.80.6661
Triple Number Windward/Leeward High775.30.7739
Single Number Predominant Upwind825.60.7268
Single Number Predominant Reaching738.80.8121
Single Number Predominant Downwind800.60.7494
Predominant Upwind - Low1154.50.5197
Predominant Upwind - Low/Med875.60.6853
Predominant Upwind - Medium762.40.7870
Predominant Upwind - Med/High709.80.8453
Predominant Upwind - High701.20.8557
Predominant Downwind Low1224.60.4899
Predominant Downwind Low/Med878.50.6830
Predominant Downwind Medium727.90.8243
Predominant Downwind Med/High641.10.9359
Predominant Downwind High603.50.9942
Predominant Reaching Low1054.40.5690
Predominant Reaching Low/Med791.10.7585
Predominant Reaching Medium682.80.8787
Predominant Reaching Med/High624.40.9609
Predominant Reaching High599.31.0012
SA/DSPL Upwind16.95SA/DSPL Downwind16.95
Scoring OptionTODTOT
5-Band Windward/Leeward Low1482.40.4048
5-Band Windward/Leeward Low/Med1065.00.5634
5-Band Windward/Leeward Medium882.10.6802
5-Band Windward/Leeward Med/High784.20.7652
5-Band Windward/Leeward High760.00.7895
Windward/Leeward 60-40 Low1473.00.4073
Windward/Leeward 60-40 Low/Med1071.10.5602
Windward/Leeward 60-40 Medium897.60.6684
Windward/Leeward 60-40 Med/High809.30.7414
Windward/Leeward 60-40 High793.10.7565
5-Band AP Low1093.50.5487
5-Band AP Low/Med842.50.7122
5-Band AP Medium720.90.8323
5-Band AP Med/High657.60.9123
5-Band AP High636.40.9428
5-Band SF Bay Tour - Low1270.40.4723
5-Band SF Bay Tour - Low/Med1019.50.5885
5-Band SF Bay Tour - Medium854.60.7020
5-Band SF Bay Tour - Med/High770.30.7789
5-Band SF Bay Tour - High750.60.7993
Chicago-Mac Upwind0.7027
Chicago-Mac All Purpose0.7149
Chicago-Mac Downwind0.7196
Bayview-Mac Cove Island0.5120
Bayview-Mac Shore0.5173
Harvest Moon Regatta638.80.9392
Double HandedClub Certificate2025
Sea LaughterRSA-2544
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFlamencaMeasurement23/03/2024HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA7.500Max. Beam2.302Draft1.249Displacement1,900Wetted area11.97IMS L6.351LSM06.172Acc. length7.481Sink (kg/mm) 9.04
VCGD0.091VCGM0.046RM Rated (kg·m) 29.1Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialSingle headsail furlerYesMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P7.685IG8.665ISP8.670MDT10.075MDL10.115MDT2MDL2TLNo TaperMWGO
E3.015J2.350BAS0.950FSD0.031SFJ0.150SPL2.498WPLTPSBD0.105MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date25/03/2024
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
Sea LaughterRSA-2544
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment00.080.520.951.702.2812.4523/03/2024
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.050.430.831.672.573.467.97NoNo 13.6123/03/2024
CRUISER/RACER REQUIREMENTS*
Accommodation length7.5 mTable area0.22 m²Headroom1.40 mMinimum number of berths2Personal gear stowage0.08 m³Fresh water capacity15 lMinimum number of seats in cockpit2Food stowage0.12 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.