Double HandedClub Certificate2025
WindsprintNED 904
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 Angles43.4°43.4°41.6°40.6°40.1°39.9°39.9°40.2°42.0°
Beat VMG2.603.604.374.855.095.215.275.295.11
52°4.065.506.537.147.447.587.667.737.65
60°4.335.816.837.417.717.857.948.027.99
75°4.546.047.047.627.958.188.338.508.56
90°4.466.037.117.618.018.318.588.989.21
110°4.636.287.458.078.408.678.919.329.67
120°4.526.197.408.078.578.979.279.8310.35
135°3.935.576.927.778.328.859.4110.7511.89
150°3.294.685.906.967.748.248.709.7311.59
Run VMG2.854.055.116.036.747.197.608.4310.04
Gybe Angles142.4°142.4°146.0°148.6°152.5°155.2°157.7°150.1°142.6°
APH ToD:523.1CDL: 10.017APH ToT: 1.1471CertNo:
BOAT
ClassElan 400DesignerRob HumphreysBuilderElanAge date01/2013Series date01/2013Offset fileELAN-400_IK2200.offData fileNED904
HULL
Length Overall11.940 mMaximum Beam3.886 mDraft2.171 mDisplacement7,355 kgDLR5.4126IMS DivisionCruiser/RacerDynamic Allowance0.190%Age Allowance0.390%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.460m
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail49.9850.83Headsail Luffed35.9635.96Headsail FlyingSymmetricAsymmetric150.44150.44 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail15.16Storm Jib12.12Heavy Weather Jib32.70
SAIL LIMITS
Headsails6Spinnakers5
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
WindsprintNED 904
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 VMG1383.31000.3823.4742.0707.9691.6683.4680.3704.7
52°886.4654.4550.9504.0483.8474.9470.0465.9470.4
60°830.8619.7527.5485.6466.7458.3453.6449.0450.6
75°792.5596.0511.7472.6452.6440.2432.2423.3420.5
90°807.3596.6506.0472.9449.6433.1419.6400.7390.7
110°776.9573.4483.5446.2428.7415.4404.1386.2372.3
120°795.6581.6486.3446.1419.9401.3388.3366.2347.8
135°917.0646.8520.1463.5432.9406.6382.4334.9302.7
150°1092.7769.4610.5517.4464.9437.1413.6369.9310.7
Run VMG1262.2888.4704.9597.4534.5500.5473.9427.0358.7
Selected Courses
Windward / Leeward1322.5944.4764.2669.7621.2596.0578.7553.7531.7
All purpose1005.2727.8599.4537.6505.9487.2473.7453.3439.4
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward648.70.9249
All purpose523.11.1471
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.91.0546
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1394.1938.8717.9604.4540.2505.6477.4431.7415.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7881
Downwind "popa"1.0178
70% up, 30% down "Ilhabela"0.8454
30% up, 70% down "Ilhabela-inverso"0.9360
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Predominantly Upwind573.11.0470
Predominantly Downwind520.01.1538
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low663.60.9042
Triple Number AP Medium519.61.1547
Triple Number AP High469.41.2782
Triple Number Windward/Leeward Low891.70.6729
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Single Number Predominant Upwind596.81.0053
Single Number Predominant Reaching516.41.1620
Single Number Predominant Downwind542.31.1065
Predominant Upwind - Low814.00.7371
Predominant Upwind - Low/Med624.80.9604
Predominant Upwind - Medium556.31.0785
Predominant Upwind - Med/High523.21.1468
Predominant Upwind - High509.51.1777
Predominant Downwind Low785.30.7640
Predominant Downwind Low/Med584.61.0263
Predominant Downwind Medium503.31.1922
Predominant Downwind Med/High452.21.3267
Predominant Downwind High416.81.4396
Predominant Reaching Low711.90.8428
Predominant Reaching Low/Med546.41.0982
Predominant Reaching Medium483.91.2399
Predominant Reaching Med/High445.01.3482
Predominant Reaching High420.21.4280
SA/DSPL Upwind22.57SA/DSPL Downwind52.64
Scoring OptionTODTOT
5-Band Windward/Leeward Low993.90.6037
5-Band Windward/Leeward Low/Med736.30.8149
5-Band Windward/Leeward Medium633.40.9473
5-Band Windward/Leeward Med/High580.91.0328
5-Band Windward/Leeward High554.21.0827
Windward/Leeward 60-40 Low1005.50.5967
Windward/Leeward 60-40 Low/Med749.80.8002
Windward/Leeward 60-40 Medium650.40.9225
Windward/Leeward 60-40 Med/High602.00.9966
Windward/Leeward 60-40 High580.41.0338
5-Band AP Low728.10.8241
5-Band AP Low/Med582.71.0297
5-Band AP Medium513.11.1694
5-Band AP Med/High475.21.2625
5-Band AP High454.41.3204
5-Band SF Bay Tour - Low860.00.6977
5-Band SF Bay Tour - Low/Med705.10.8509
5-Band SF Bay Tour - Medium611.50.9812
5-Band SF Bay Tour - Med/High563.71.0645
5-Band SF Bay Tour - High539.61.1120
Chicago-Mac Upwind0.9760
Chicago-Mac All Purpose1.0227
Chicago-Mac Downwind1.0676
Bayview-Mac Cove Island0.7530
Bayview-Mac Shore0.7570
Harvest Moon Regatta449.51.3349
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.91.0546
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1394.1938.8717.9604.4540.2505.6477.4431.7415.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.91.0546
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1394.1938.8717.9604.4540.2505.6477.4431.7415.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance568.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1394.1938.8717.9604.4540.2505.6477.4431.7415.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)568.91.0546
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1394.1938.8717.9604.4540.2505.6477.4431.7415.1
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0546
Triple Number Coastal/Long Distance Low0.9042
Triple Number Coastal/Long Distance Medium1.1548
Triple Number Coastal/Long Distance High1.2782
Triple Number Windward/Leeward Low0.7023
Triple Number Windward/Leeward Medium0.9331
Triple Number Windward/Leeward High1.0460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1394.1938.8717.9604.4540.2505.6477.4431.7415.1
For information
General Purpose Handicap (GPH)585.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.91.0546
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1394.1938.8717.9604.4540.2505.6477.4431.7415.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.91.0546
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1394.1938.8717.9604.4540.2505.6477.4431.7415.1
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.91.0546
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1394.1938.8717.9604.4540.2505.6477.4431.7415.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low663.6
Triple Number Coastal/Long Distance Medium519.6
Triple Number Coastal/Long Distance High469.4
Triple Number Windward/Leeward Low854.3
Triple Number Windward/Leeward Medium643.0
Triple Number Windward/Leeward High573.6
Predominantly Upwind573.1
Predominantly Downwind520.0
Predominantly Reaching501.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.91.0546
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1394.1938.8717.9604.4540.2505.6477.4431.7415.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9042
Triple Number Coastal/Long Distance Medium1.1548
Triple Number Coastal/Long Distance High1.2782
Triple Number Windward/Leeward Low0.7023
Triple Number Windward/Leeward Medium0.9331
Triple Number Windward/Leeward High1.0460
Coastal/Long Distance1.0546
Predominantly Upwind1.0470
Predominantly Downwind1.1538
For information
General Purpose Handicap (GPH)585.2
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1471
Distanseseilas Trippeltall svak vind0.9042
Distanseseilas Trippeltall mellomvind1.1548
Distanseseilas Trippeltall sterk vind1.2782
Pølsebane Trippeltall svak vind0.7023
Pølsebane Trippeltall mellomvind0.9331
Pølsebane Trippeltall sterk vind1.0460
Motvind Singeltall1.0470
Medvind Singeltall1.1538
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Coastal/Long Distance568.91.0546
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind573.11.0470
Predominantly Downwind520.01.1538
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore538.31.1146
Cape Doctor Coastal443.51.3527
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9042
Triple Number Coastal/Long Distance Medium1.1548
Triple Number Coastal/Long Distance High1.2782
Triple Number Windward/Leeward Low0.7023
Triple Number Windward/Leeward Medium0.9331
Triple Number Windward/Leeward High1.0460
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9042
Triple Number Coastal/Long Distance Medium1.1548
Triple Number Coastal/Long Distance High1.2782
Triple Number Windward/Leeward Low0.7023
Triple Number Windward/Leeward Medium0.9331
Triple Number Windward/Leeward High1.0460
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.91.0546
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Predominantly Upwind573.11.0470
Predominantly Downwind520.01.1538
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1394.1938.8717.9604.4540.2505.6477.4431.7415.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.91.0546
Triple Number Coastal/Long Distance Low663.60.9042
Triple Number Coastal/Long Distance Medium519.61.1548
Triple Number Coastal/Long Distance High469.41.2782
Triple Number Windward/Leeward Low854.30.7023
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1394.1938.8717.9604.4540.2505.6477.4431.7415.1
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low663.60.9042
Triple Number AP Medium519.61.1547
Triple Number AP High469.41.2782
Triple Number Windward/Leeward Low891.70.6729
Triple Number Windward/Leeward Medium643.00.9331
Triple Number Windward/Leeward High573.61.0460
Single Number Predominant Upwind596.81.0053
Single Number Predominant Reaching516.41.1620
Single Number Predominant Downwind542.31.1065
Predominant Upwind - Low814.00.7371
Predominant Upwind - Low/Med624.80.9604
Predominant Upwind - Medium556.31.0785
Predominant Upwind - Med/High523.21.1468
Predominant Upwind - High509.51.1777
Predominant Downwind Low785.30.7640
Predominant Downwind Low/Med584.61.0263
Predominant Downwind Medium503.31.1922
Predominant Downwind Med/High452.21.3267
Predominant Downwind High416.81.4396
Predominant Reaching Low711.90.8428
Predominant Reaching Low/Med546.41.0982
Predominant Reaching Medium483.91.2399
Predominant Reaching Med/High445.01.3482
Predominant Reaching High420.21.4280
SA/DSPL Upwind22.57SA/DSPL Downwind52.64
Scoring OptionTODTOT
5-Band Windward/Leeward Low993.90.6037
5-Band Windward/Leeward Low/Med736.30.8149
5-Band Windward/Leeward Medium633.40.9473
5-Band Windward/Leeward Med/High580.91.0328
5-Band Windward/Leeward High554.21.0827
Windward/Leeward 60-40 Low1005.50.5967
Windward/Leeward 60-40 Low/Med749.80.8002
Windward/Leeward 60-40 Medium650.40.9225
Windward/Leeward 60-40 Med/High602.00.9966
Windward/Leeward 60-40 High580.41.0338
5-Band AP Low728.10.8241
5-Band AP Low/Med582.71.0297
5-Band AP Medium513.11.1694
5-Band AP Med/High475.21.2625
5-Band AP High454.41.3204
5-Band SF Bay Tour - Low860.00.6977
5-Band SF Bay Tour - Low/Med705.10.8509
5-Band SF Bay Tour - Medium611.50.9812
5-Band SF Bay Tour - Med/High563.71.0645
5-Band SF Bay Tour - High539.61.1120
Chicago-Mac Upwind0.9760
Chicago-Mac All Purpose1.0227
Chicago-Mac Downwind1.0676
Bayview-Mac Cove Island0.7530
Bayview-Mac Shore0.7570
Harvest Moon Regatta449.51.3349
Double HandedClub Certificate2025
WindsprintNED 904
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassElan 400Measurement10/04/2014HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA11.940Max. Beam3.886Draft2.171Displacement7,355Wetted area31.74IMS L11.134LSM011.075Acc. length11.940Sink (kg/mm) 23.13
VCGD-0.102VCGM-0.076RM Rated (kg·m) 167.5Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.460PBWPIPA0.0008
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P15.690IG15.563ISP16.653MDT10.120MDL10.228MDT2MDL2TLNo TaperMWGO
E5.520J4.535BAS1.283FSDFoilSFJ0.350SPLWPLTPS5.805BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date18/04/2014
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
WindsprintNED 904
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20220.161.091.973.414.5149.98
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20230.100.641.202.343.524.7115.21YesNo 35.96
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment202318.6216.0117.3210.3610.6997%150.44
CRUISER/RACER REQUIREMENTS*
Accommodation length11.9 mTable area0.55 m²Headroom1.81 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity148 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity88 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.