Double HandedClub Certificate2025
GambitRSA-665
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 Angles44.5°44.5°42.6°41.6°41.5°41.5°41.4°42.0°43.7°
Beat VMG1.792.513.103.523.824.014.094.073.90
52°2.823.874.685.265.685.936.056.075.94
60°3.024.104.915.505.916.166.296.346.28
75°3.144.265.105.716.126.376.546.706.72
90°3.274.495.426.026.286.426.636.937.10
110°3.374.635.606.236.596.836.987.217.17
120°3.234.495.486.176.596.897.157.507.74
135°2.844.045.075.896.416.777.097.708.34
150°2.413.504.505.356.036.476.807.438.10
Run VMG2.093.033.904.665.335.876.286.917.48
Gybe Angles148.3°148.3°151.6°154.1°159.9°165.3°171.8°177.2°177.2°
APH ToD:687.2CDL: 6.368APH ToT: 0.8731CertNo:ZAD285
BOAT
ClassMuiraDesignerOswald BerckemeyerBuilderNebe BoatbuildersAge date01/1985Series date01/1978Offset filesa92033.offData fileRSA665
HULL
Length Overall9.330 mMaximum Beam3.148 mDraft1.724 mDisplacement4,100 kgDLR8.9873IMS DivisionCruiser/RacerDynamic Allowance0.560%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeSolid 2 bladesDiameter0.350m
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedNon Manual PowerCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail18.1018.31Headsail Luffed22.5622.56Headsail FlyingSymmetric65.4265.42Asymmetric
STORM SAIL AREAS (m²)
Trysail5.58Storm Jib6.58Heavy Weather Jib17.75
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
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
GambitRSA-665
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 VMG2015.71435.61161.31022.5941.5896.7880.1884.6922.6
52°1278.2930.5769.3684.8633.7606.9595.5593.5605.7
60°1192.0877.4733.0654.7609.0584.9572.8567.9573.1
75°1146.0844.9706.5630.5588.5564.9550.7537.2535.7
90°1102.0802.5664.2598.1573.4560.6542.9519.5506.9
110°1067.5776.9642.9578.1546.7526.9515.5499.4502.1
120°1113.0802.4656.6583.1546.5522.7503.5479.8465.3
135°1266.7892.2710.1611.2561.7531.9507.8467.6431.6
150°1491.41028.3800.6672.6597.5556.5529.1484.6444.2
Run VMG1725.31187.4923.2773.3675.6613.8573.1521.3481.6
Selected Courses
Windward / Leeward1869.71311.51042.2897.9808.6755.2726.6702.9702.1
All purpose1417.81011.0817.2715.4657.5624.3604.8585.8582.1
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward850.80.7052
All purpose687.20.8731
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance748.50.8016
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1962.21299.1976.5806.4704.1648.3609.4554.9545.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.5815
Downwind "popa"0.7973
70% up, 30% down "Ilhabela"0.6329
30% up, 70% down "Ilhabela-inverso"0.7174
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Predominantly Upwind761.30.7882
Predominantly Downwind680.00.8823
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low914.10.6564
Triple Number AP Medium681.90.8799
Triple Number AP High602.60.9958
Triple Number Windward/Leeward Low1231.80.4871
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Single Number Predominant Upwind797.80.7521
Single Number Predominant Reaching682.20.8795
Single Number Predominant Downwind713.30.8411
Predominant Upwind - Low1146.40.5234
Predominant Upwind - Low/Med853.00.7034
Predominant Upwind - Medium732.50.8191
Predominant Upwind - Med/High672.60.8920
Predominant Upwind - High659.10.9103
Predominant Downwind Low1076.40.5574
Predominant Downwind Low/Med779.10.7701
Predominant Downwind Medium651.70.9207
Predominant Downwind Med/High577.61.0387
Predominant Downwind High541.71.1076
Predominant Reaching Low980.90.6117
Predominant Reaching Low/Med729.80.8221
Predominant Reaching Medium629.50.9532
Predominant Reaching Med/High575.21.0432
Predominant Reaching High549.61.0917
SA/DSPL Upwind15.80SA/DSPL Downwind32.45
Scoring OptionTODTOT
5-Band Windward/Leeward Low1383.90.4335
5-Band Windward/Leeward Low/Med996.50.6021
5-Band Windward/Leeward Medium827.20.7254
5-Band Windward/Leeward Med/High734.30.8171
5-Band Windward/Leeward High706.90.8488
Windward/Leeward 60-40 Low1409.60.4257
Windward/Leeward 60-40 Low/Med1021.30.5875
Windward/Leeward 60-40 Medium853.90.7027
Windward/Leeward 60-40 Med/High765.20.7841
Windward/Leeward 60-40 High743.60.8069
5-Band AP Low1008.10.5952
5-Band AP Low/Med786.30.7631
5-Band AP Medium670.50.8949
5-Band AP Med/High609.30.9847
5-Band AP High588.41.0197
5-Band SF Bay Tour - Low1195.80.5018
5-Band SF Bay Tour - Low/Med958.40.6261
5-Band SF Bay Tour - Medium802.80.7474
5-Band SF Bay Tour - Med/High720.30.8330
5-Band SF Bay Tour - High696.70.8612
Chicago-Mac Upwind0.7247
Chicago-Mac All Purpose0.7678
Chicago-Mac Downwind0.8089
Bayview-Mac Cove Island0.5476
Bayview-Mac Shore0.5506
Harvest Moon Regatta583.51.0283
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance748.50.8016
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1962.21299.1976.5806.4704.1648.3609.4554.9545.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance748.50.8016
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1962.21299.1976.5806.4704.1648.3609.4554.9545.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance748.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1962.21299.1976.5806.4704.1648.3609.4554.9545.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating748.50.8016
FinRating, kevyt tuuli1356.50.7372
FinRating, kova tuuli591.90.8447
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8016
Triple Number Coastal/Long Distance Low0.6564
Triple Number Coastal/Long Distance Medium0.8800
Triple Number Coastal/Long Distance High0.9958
Triple Number Windward/Leeward Low0.5098
Triple Number Windward/Leeward Medium0.7105
Triple Number Windward/Leeward High0.8277
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1962.21299.1976.5806.4704.1648.3609.4554.9545.8
For information
General Purpose Handicap (GPH)777.7
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance748.50.8016
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1962.21299.1976.5806.4704.1648.3609.4554.9545.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance748.50.8016
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1962.21299.1976.5806.4704.1648.3609.4554.9545.8
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance748.50.8016
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1962.21299.1976.5806.4704.1648.3609.4554.9545.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low914.1
Triple Number Coastal/Long Distance Medium681.8
Triple Number Coastal/Long Distance High602.5
Triple Number Windward/Leeward Low1176.9
Triple Number Windward/Leeward Medium844.5
Triple Number Windward/Leeward High724.9
Predominantly Upwind761.3
Predominantly Downwind680.0
Predominantly Reaching658.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance748.50.8016
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1962.21299.1976.5806.4704.1648.3609.4554.9545.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6564
Triple Number Coastal/Long Distance Medium0.8800
Triple Number Coastal/Long Distance High0.9958
Triple Number Windward/Leeward Low0.5098
Triple Number Windward/Leeward Medium0.7105
Triple Number Windward/Leeward High0.8277
Coastal/Long Distance0.8016
Predominantly Upwind0.7882
Predominantly Downwind0.8823
For information
General Purpose Handicap (GPH)777.7
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8731
Distanseseilas Trippeltall svak vind0.6564
Distanseseilas Trippeltall mellomvind0.8800
Distanseseilas Trippeltall sterk vind0.9958
Pølsebane Trippeltall svak vind0.5098
Pølsebane Trippeltall mellomvind0.7105
Pølsebane Trippeltall sterk vind0.8277
Motvind Singeltall0.7882
Medvind Singeltall0.8823
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Coastal/Long Distance748.50.8016
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind761.30.7882
Predominantly Downwind680.00.8823
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore702.30.8543
Cape Doctor Coastal583.21.0288
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6564
Triple Number Coastal/Long Distance Medium0.8800
Triple Number Coastal/Long Distance High0.9958
Triple Number Windward/Leeward Low0.5098
Triple Number Windward/Leeward Medium0.7105
Triple Number Windward/Leeward High0.8277
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6564
Triple Number Coastal/Long Distance Medium0.8800
Triple Number Coastal/Long Distance High0.9958
Triple Number Windward/Leeward Low0.5098
Triple Number Windward/Leeward Medium0.7105
Triple Number Windward/Leeward High0.8277
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance748.50.8016
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Predominantly Upwind761.30.7882
Predominantly Downwind680.00.8823
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1962.21299.1976.5806.4704.1648.3609.4554.9545.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance748.50.8016
Triple Number Coastal/Long Distance Low914.10.6564
Triple Number Coastal/Long Distance Medium681.80.8800
Triple Number Coastal/Long Distance High602.50.9958
Triple Number Windward/Leeward Low1176.90.5098
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1962.21299.1976.5806.4704.1648.3609.4554.9545.8
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low914.10.6564
Triple Number AP Medium681.90.8799
Triple Number AP High602.60.9958
Triple Number Windward/Leeward Low1231.80.4871
Triple Number Windward/Leeward Medium844.50.7105
Triple Number Windward/Leeward High724.90.8277
Single Number Predominant Upwind797.80.7521
Single Number Predominant Reaching682.20.8795
Single Number Predominant Downwind713.30.8411
Predominant Upwind - Low1146.40.5234
Predominant Upwind - Low/Med853.00.7034
Predominant Upwind - Medium732.50.8191
Predominant Upwind - Med/High672.60.8920
Predominant Upwind - High659.10.9103
Predominant Downwind Low1076.40.5574
Predominant Downwind Low/Med779.10.7701
Predominant Downwind Medium651.70.9207
Predominant Downwind Med/High577.61.0387
Predominant Downwind High541.71.1076
Predominant Reaching Low980.90.6117
Predominant Reaching Low/Med729.80.8221
Predominant Reaching Medium629.50.9532
Predominant Reaching Med/High575.21.0432
Predominant Reaching High549.61.0917
SA/DSPL Upwind15.80SA/DSPL Downwind32.45
Scoring OptionTODTOT
5-Band Windward/Leeward Low1383.90.4335
5-Band Windward/Leeward Low/Med996.50.6021
5-Band Windward/Leeward Medium827.20.7254
5-Band Windward/Leeward Med/High734.30.8171
5-Band Windward/Leeward High706.90.8488
Windward/Leeward 60-40 Low1409.60.4257
Windward/Leeward 60-40 Low/Med1021.30.5875
Windward/Leeward 60-40 Medium853.90.7027
Windward/Leeward 60-40 Med/High765.20.7841
Windward/Leeward 60-40 High743.60.8069
5-Band AP Low1008.10.5952
5-Band AP Low/Med786.30.7631
5-Band AP Medium670.50.8949
5-Band AP Med/High609.30.9847
5-Band AP High588.41.0197
5-Band SF Bay Tour - Low1195.80.5018
5-Band SF Bay Tour - Low/Med958.40.6261
5-Band SF Bay Tour - Medium802.80.7474
5-Band SF Bay Tour - Med/High720.30.8330
5-Band SF Bay Tour - High696.70.8612
Chicago-Mac Upwind0.7247
Chicago-Mac All Purpose0.7678
Chicago-Mac Downwind0.8089
Bayview-Mac Cove Island0.5476
Bayview-Mac Shore0.5506
Harvest Moon Regatta583.51.0283
Double HandedClub Certificate2025
GambitRSA-665
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMuiraMeasurement31/05/2025HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.330Max. Beam3.148Draft1.724Displacement4,100Wetted area20.26IMS L7.705LSM07.697Acc. length9.330Sink (kg/mm) 14.20
VCGD0.113VCGM0.162RM Rated (kg·m) 69.6Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeSolid 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.350PBW0.140PIPA0.0128
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionFixedInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstaysCheckstaysSpreaders1Rotating mastNo
P10.090IG11.465ISP11.675MDT10.120MDL10.180MDT2MDL2TLMWGO
E3.160J3.880BAS1.455FSDSFJSPL3.550WPLTPSBD0.130MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date10/06/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
GambitRSA-665
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment00.120.611.081.892.5618.1031/05/2025
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.080.480.931.933.084.3111.04NoNo 22.5631/05/2025
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment011.3311.3611.356.946.8465.4231/05/2025
CRUISER/RACER REQUIREMENTS*
Accommodation length9.3 mTable area0.44 m²Headroom1.65 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity66 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity36 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.