Double HandedClub Certificate2025
Red KingNED 8950
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 Angles43.3°43.3°41.1°40.8°41.3°42.0°42.4°43.7°45.8°
Beat VMG2.052.803.373.713.893.963.993.943.76
52°3.184.254.985.475.755.895.945.975.84
60°3.364.455.195.695.966.126.196.246.19
75°3.444.615.425.906.176.356.466.586.62
90°3.624.855.706.176.426.586.696.806.91
110°3.594.875.786.306.596.827.007.277.52
120°3.424.725.706.266.586.847.067.477.69
135°3.094.315.326.076.486.787.047.558.08
150°2.623.734.725.586.186.546.827.357.93
Run VMG2.263.234.104.865.526.006.366.907.38
Gybe Angles148.3°148.3°152.3°153.7°161.9°168.0°176.3°178.1°177.7°
APH ToD:671.0CDL: 6.316APH ToT: 0.8943CertNo:
BOAT
ClassContest 31 HTDesignerD. ZaalBuilderConyplexAge date01/1974Series date01/1974Offset fileH020.bofData fileNED8950
HULL
Length Overall9.383 mMaximum Beam3.022 mDraft1.735 mDisplacement4,760 kgDLR12.1949IMS DivisionDynamic Allowance0.650%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.405m
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail17.5018.07Headsail Luffed26.3726.37Headsail FlyingSymmetric74.9674.96Asymmetric50.7859.97 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail4.99Storm Jib6.73Heavy Weather Jib18.17
SAIL LIMITS
Headsails5Spinnakers4
✱ Asymmetric may be tacked on the pole
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
Red KingNED 8950
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 VMG1760.41285.51069.8971.4925.2908.6902.5912.8958.4
52°1130.8847.8723.0658.1626.2611.0605.7602.9616.9
60°1071.5808.2693.6633.1603.7588.5581.9576.5581.4
75°1047.3781.3664.7610.5583.0567.2557.1547.3544.2
90°994.3741.9632.1583.6560.7547.1538.5529.7520.8
110°1003.3739.6622.5571.6546.0528.2514.6495.1478.4
120°1051.2762.9631.9575.2546.9526.6509.6482.0467.9
135°1165.6835.0676.7592.8555.5531.1511.0476.7445.7
150°1373.2964.0762.3644.8582.2550.7527.8489.6454.2
Run VMG1592.71113.2878.2741.4651.8599.7565.7522.0487.7
Selected Courses
Windward / Leeward1675.41199.3974.0856.4788.5754.1734.1717.4723.1
All purpose1279.0930.8769.6688.7646.4624.5610.9596.2594.4
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward825.30.7270
All purpose671.00.8943
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance728.30.8239
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1758.51190.7915.2772.9691.3648.2615.3563.0556.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6021
Downwind "popa"0.8281
70% up, 30% down "Ilhabela"0.6558
30% up, 70% down "Ilhabela-inverso"0.7443
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Predominantly Upwind739.80.8110
Predominantly Downwind659.70.9096
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low850.20.7057
Triple Number AP Medium665.40.9018
Triple Number AP High608.80.9856
Triple Number Windward/Leeward Low1133.90.5292
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Single Number Predominant Upwind770.70.7785
Single Number Predominant Reaching660.60.9083
Single Number Predominant Downwind689.50.8702
Predominant Upwind - Low1041.00.5764
Predominant Upwind - Low/Med805.40.7450
Predominant Upwind - Medium717.40.8363
Predominant Upwind - Med/High680.10.8823
Predominant Upwind - High673.90.8904
Predominant Downwind Low996.60.6021
Predominant Downwind Low/Med742.00.8086
Predominant Downwind Medium636.10.9432
Predominant Downwind Med/High577.51.0389
Predominant Downwind High549.41.0920
Predominant Reaching Low903.00.6644
Predominant Reaching Low/Med695.40.8628
Predominant Reaching Medium616.20.9737
Predominant Reaching Med/High576.51.0408
Predominant Reaching High559.41.0727
SA/DSPL Upwind15.43SA/DSPL Downwind32.51
Scoring OptionTODTOT
5-Band Windward/Leeward Low1262.30.4753
5-Band Windward/Leeward Low/Med938.30.6394
5-Band Windward/Leeward Medium805.00.7453
5-Band Windward/Leeward Med/High739.30.8116
5-Band Windward/Leeward High721.30.8319
Windward/Leeward 60-40 Low1279.90.4688
Windward/Leeward 60-40 Low/Med959.80.6252
Windward/Leeward 60-40 Medium832.10.7211
Windward/Leeward 60-40 Med/High772.90.7763
Windward/Leeward 60-40 High760.80.7887
5-Band AP Low932.80.6433
5-Band AP Low/Med746.60.8036
5-Band AP Medium657.10.9132
5-Band AP Med/High613.70.9777
5-Band AP High598.41.0026
5-Band SF Bay Tour - Low1097.20.5468
5-Band SF Bay Tour - Low/Med903.00.6644
5-Band SF Bay Tour - Medium783.50.7658
5-Band SF Bay Tour - Med/High727.20.8251
5-Band SF Bay Tour - High712.20.8425
Chicago-Mac Upwind0.7564
Chicago-Mac All Purpose0.8001
Chicago-Mac Downwind0.8415
Bayview-Mac Cove Island0.5912
Bayview-Mac Shore0.5948
Harvest Moon Regatta575.81.0421
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance728.30.8239
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1758.51190.7915.2772.9691.3648.2615.3563.0556.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance728.30.8239
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1758.51190.7915.2772.9691.3648.2615.3563.0556.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance728.3
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1758.51190.7915.2772.9691.3648.2615.3563.0556.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)728.30.8239
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1758.51190.7915.2772.9691.3648.2615.3563.0556.5
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8239
Triple Number Coastal/Long Distance Low0.7057
Triple Number Coastal/Long Distance Medium0.9019
Triple Number Coastal/Long Distance High0.9856
Triple Number Windward/Leeward Low0.5522
Triple Number Windward/Leeward Medium0.7335
Triple Number Windward/Leeward High0.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1758.51190.7915.2772.9691.3648.2615.3563.0556.5
For information
General Purpose Handicap (GPH)750.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance728.30.8239
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1758.51190.7915.2772.9691.3648.2615.3563.0556.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance728.30.8239
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1758.51190.7915.2772.9691.3648.2615.3563.0556.5
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance728.30.8239
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1758.51190.7915.2772.9691.3648.2615.3563.0556.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low850.2
Triple Number Coastal/Long Distance Medium665.3
Triple Number Coastal/Long Distance High608.8
Triple Number Windward/Leeward Low1086.6
Triple Number Windward/Leeward Medium818.0
Triple Number Windward/Leeward High732.9
Predominantly Upwind739.8
Predominantly Downwind659.7
Predominantly Reaching639.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance728.30.8239
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1758.51190.7915.2772.9691.3648.2615.3563.0556.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7057
Triple Number Coastal/Long Distance Medium0.9019
Triple Number Coastal/Long Distance High0.9856
Triple Number Windward/Leeward Low0.5522
Triple Number Windward/Leeward Medium0.7335
Triple Number Windward/Leeward High0.8187
Coastal/Long Distance0.8239
Predominantly Upwind0.8110
Predominantly Downwind0.9096
For information
General Purpose Handicap (GPH)750.2
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8943
Distanseseilas Trippeltall svak vind0.7057
Distanseseilas Trippeltall mellomvind0.9019
Distanseseilas Trippeltall sterk vind0.9856
Pølsebane Trippeltall svak vind0.5522
Pølsebane Trippeltall mellomvind0.7335
Pølsebane Trippeltall sterk vind0.8187
Motvind Singeltall0.8110
Medvind Singeltall0.9096
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Coastal/Long Distance728.30.8239
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind739.80.8110
Predominantly Downwind659.70.9096
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore721.40.8318
Cape Doctor Coastal594.91.0085
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7057
Triple Number Coastal/Long Distance Medium0.9019
Triple Number Coastal/Long Distance High0.9856
Triple Number Windward/Leeward Low0.5522
Triple Number Windward/Leeward Medium0.7335
Triple Number Windward/Leeward High0.8187
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7057
Triple Number Coastal/Long Distance Medium0.9019
Triple Number Coastal/Long Distance High0.9856
Triple Number Windward/Leeward Low0.5522
Triple Number Windward/Leeward Medium0.7335
Triple Number Windward/Leeward High0.8187
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance728.30.8239
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Predominantly Upwind739.80.8110
Predominantly Downwind659.70.9096
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1758.51190.7915.2772.9691.3648.2615.3563.0556.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance728.30.8239
Triple Number Coastal/Long Distance Low850.20.7057
Triple Number Coastal/Long Distance Medium665.30.9019
Triple Number Coastal/Long Distance High608.80.9856
Triple Number Windward/Leeward Low1086.60.5522
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1758.51190.7915.2772.9691.3648.2615.3563.0556.5
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low850.20.7057
Triple Number AP Medium665.40.9018
Triple Number AP High608.80.9856
Triple Number Windward/Leeward Low1133.90.5292
Triple Number Windward/Leeward Medium818.00.7335
Triple Number Windward/Leeward High732.90.8187
Single Number Predominant Upwind770.70.7785
Single Number Predominant Reaching660.60.9083
Single Number Predominant Downwind689.50.8702
Predominant Upwind - Low1041.00.5764
Predominant Upwind - Low/Med805.40.7450
Predominant Upwind - Medium717.40.8363
Predominant Upwind - Med/High680.10.8823
Predominant Upwind - High673.90.8904
Predominant Downwind Low996.60.6021
Predominant Downwind Low/Med742.00.8086
Predominant Downwind Medium636.10.9432
Predominant Downwind Med/High577.51.0389
Predominant Downwind High549.41.0920
Predominant Reaching Low903.00.6644
Predominant Reaching Low/Med695.40.8628
Predominant Reaching Medium616.20.9737
Predominant Reaching Med/High576.51.0408
Predominant Reaching High559.41.0727
SA/DSPL Upwind15.43SA/DSPL Downwind32.51
Scoring OptionTODTOT
5-Band Windward/Leeward Low1262.30.4753
5-Band Windward/Leeward Low/Med938.30.6394
5-Band Windward/Leeward Medium805.00.7453
5-Band Windward/Leeward Med/High739.30.8116
5-Band Windward/Leeward High721.30.8319
Windward/Leeward 60-40 Low1279.90.4688
Windward/Leeward 60-40 Low/Med959.80.6252
Windward/Leeward 60-40 Medium832.10.7211
Windward/Leeward 60-40 Med/High772.90.7763
Windward/Leeward 60-40 High760.80.7887
5-Band AP Low932.80.6433
5-Band AP Low/Med746.60.8036
5-Band AP Medium657.10.9132
5-Band AP Med/High613.70.9777
5-Band AP High598.41.0026
5-Band SF Bay Tour - Low1097.20.5468
5-Band SF Bay Tour - Low/Med903.00.6644
5-Band SF Bay Tour - Medium783.50.7658
5-Band SF Bay Tour - Med/High727.20.8251
5-Band SF Bay Tour - High712.20.8425
Chicago-Mac Upwind0.7564
Chicago-Mac All Purpose0.8001
Chicago-Mac Downwind0.8415
Bayview-Mac Cove Island0.5912
Bayview-Mac Shore0.5948
Harvest Moon Regatta575.81.0421
Double HandedClub Certificate2025
Red KingNED 8950
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassContest 31 HTMeasurementHINPlan reviewHull constructionLightCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.383Max. Beam3.022Draft1.735Displacement4,760Wetted area19.31IMS L7.422LSM07.307Acc. length9.383Sink (kg/mm) 13.02
VCGD-0.177VCGM-0.054RM Rated (kg·m) 60.8Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.405PBWPIPA0.0016
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P9.900IG11.600ISP11.800MDT10.180MDL10.210MDT2MDL2TLMWGO
E2.880J4.200BAS1.460FSD0.000SFJ0.000SPL4.090WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date09/04/2018
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
Red KingNED 8950
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment117.50
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC4.200.00NoNo 26.37* Copied from legacy *
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment10.0074.96
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment112.0010.0011.005.206.9075%50.78