Club Certificate2025
ZeepaardNED 962
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 Angles46.0°46.0°44.3°43.4°43.0°43.5°43.5°44.1°45.6°
Beat VMG1.782.473.023.403.663.803.873.903.83
52°2.883.904.655.165.525.735.825.895.89
60°3.114.174.915.425.765.966.056.146.17
75°3.224.325.105.645.986.186.316.446.51
90°3.154.295.165.776.146.366.526.726.83
110°2.994.115.015.706.126.386.596.977.29
120°2.833.934.845.556.026.326.546.967.36
135°2.463.514.435.175.756.136.386.787.17
150°2.063.013.864.505.105.615.986.436.79
Run VMG1.792.613.343.984.615.175.656.266.64
Gybe Angles144.2°144.2°144.9°170.8°172.1°173.0°174.5°177.1°177.4°
APH ToD:737.6CDL: 5.922APH ToT: 0.8135CertNo:
BOAT
ClassTrewes 1ADesignerS.M. van der MeerBuilderJachtwerf Dekker, DiemerzeedijkAge date01/1962Series date01/1962Offset fileTrewes1A-NED962.offData fileNED962
HULL
Length Overall8.826 mMaximum Beam2.516 mDraft1.210 mDisplacement4,492 kgDLR13.0285IMS DivisionCruiser/RacerDynamic Allowance0.720%Age Allowance0.487%
PROPELLER
InstallationIn ApertureTypeSolid 2 bladesDiameter0.450m
CREW
Maximum weight350 kg(declared)Minimum weight220 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail20.3520.85Headsail Luffed20.7420.74Headsail Flying22.2322.23SymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail6.14Storm Jib4.39Heavy Weather Jib11.83
SAIL LIMITS
Headsails5Spinnakers0
✱ No 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.
Club Certificate2025
ZeepaardNED 962
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 VMG2020.21456.91193.71059.8982.8947.8930.7924.0939.7
52°1250.3922.2773.6697.6651.9628.5618.5610.8611.4
60°1156.8864.1733.8664.5625.4604.3594.6586.3583.7
75°1118.6833.2705.4638.1602.3582.4570.2558.6552.6
90°1144.1838.7697.6623.6586.8566.1552.4535.6527.3
110°1204.7875.0718.8631.9588.6564.1545.9516.6493.7
120°1270.7914.9744.6648.9597.9569.9550.2517.4488.9
135°1463.51024.5811.9696.2625.7587.2564.1530.9502.0
150°1749.11196.7932.5800.3706.3642.2602.5559.6530.5
Run VMG2006.11381.91076.7903.8780.6696.3637.5575.4542.1
Selected Courses
Windward / Leeward2011.41419.41135.2981.8881.7822.1784.1749.7740.9
All purpose1511.21081.9878.5771.1706.1668.9646.4623.0612.4
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward925.70.6482
All purpose737.60.8135
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance808.90.7417
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2141.11415.61063.6877.6760.1696.6652.1588.9574.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.5603
Downwind "popa"0.6940
70% up, 30% down "Ilhabela"0.5947
30% up, 70% down "Ilhabela-inverso"0.6476
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Predominantly Upwind800.20.7498
Predominantly Downwind748.10.8021
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low980.20.6121
Triple Number AP Medium732.90.8186
Triple Number AP High643.20.9328
Triple Number Windward/Leeward Low1335.60.4492
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Single Number Predominant Upwind835.30.7183
Single Number Predominant Reaching727.00.8254
Single Number Predominant Downwind785.70.7637
Predominant Upwind - Low1186.90.5055
Predominant Upwind - Low/Med892.60.6722
Predominant Upwind - Medium770.30.7789
Predominant Upwind - Med/High708.70.8466
Predominant Upwind - High690.50.8689
Predominant Downwind Low1196.20.5016
Predominant Downwind Low/Med865.20.6935
Predominant Downwind Medium716.60.8373
Predominant Downwind Med/High627.20.9566
Predominant Downwind High588.61.0194
Predominant Reaching Low1050.60.5711
Predominant Reaching Low/Med782.70.7666
Predominant Reaching Medium669.60.8961
Predominant Reaching Med/High608.50.9861
Predominant Reaching High583.81.0278
SA/DSPL Upwind15.02SA/DSPL Downwind15.57
Scoring OptionTODTOT
5-Band Windward/Leeward Low1496.80.4009
5-Band Windward/Leeward Low/Med1085.60.5527
5-Band Windward/Leeward Medium901.50.6656
5-Band Windward/Leeward Med/High793.00.7567
5-Band Windward/Leeward High754.10.7956
Windward/Leeward 60-40 Low1503.80.3990
Windward/Leeward 60-40 Low/Med1099.30.5458
Windward/Leeward 60-40 Medium921.80.6509
Windward/Leeward 60-40 Med/High821.70.7302
Windward/Leeward 60-40 High788.90.7606
5-Band AP Low1084.40.5533
5-Band AP Low/Med845.10.7099
5-Band AP Medium720.10.8332
5-Band AP Med/High651.30.9213
5-Band AP High625.20.9597
5-Band SF Bay Tour - Low1288.10.4658
5-Band SF Bay Tour - Low/Med1038.20.5779
5-Band SF Bay Tour - Medium871.10.6888
5-Band SF Bay Tour - Med/High777.10.7721
5-Band SF Bay Tour - High744.70.8057
Chicago-Mac Upwind0.6921
Chicago-Mac All Purpose0.7155
Chicago-Mac Downwind0.7319
Bayview-Mac Cove Island0.5096
Bayview-Mac Shore0.5139
Harvest Moon Regatta624.90.9601
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance808.90.7417
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2141.11415.61063.6877.6760.1696.6652.1588.9574.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance808.90.7417
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2141.11415.61063.6877.6760.1696.6652.1588.9574.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance808.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2141.11415.61063.6877.6760.1696.6652.1588.9574.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating808.90.7417
FinRating, kevyt tuuli1466.70.6818
FinRating, kova tuuli629.00.7949
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7417
Triple Number Coastal/Long Distance Low0.6121
Triple Number Coastal/Long Distance Medium0.8187
Triple Number Coastal/Long Distance High0.9328
Triple Number Windward/Leeward Low0.4697
Triple Number Windward/Leeward Medium0.6513
Triple Number Windward/Leeward High0.7686
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2141.11415.61063.6877.6760.1696.6652.1588.9574.8
For information
General Purpose Handicap (GPH)834.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance808.90.7417
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2141.11415.61063.6877.6760.1696.6652.1588.9574.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance808.90.7417
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2141.11415.61063.6877.6760.1696.6652.1588.9574.8
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance808.90.7417
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2141.11415.61063.6877.6760.1696.6652.1588.9574.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low980.2
Triple Number Coastal/Long Distance Medium732.9
Triple Number Coastal/Long Distance High643.2
Triple Number Windward/Leeward Low1277.4
Triple Number Windward/Leeward Medium921.2
Triple Number Windward/Leeward High780.6
Predominantly Upwind800.2
Predominantly Downwind748.1
Predominantly Reaching710.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance808.90.7417
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2141.11415.61063.6877.6760.1696.6652.1588.9574.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6121
Triple Number Coastal/Long Distance Medium0.8187
Triple Number Coastal/Long Distance High0.9328
Triple Number Windward/Leeward Low0.4697
Triple Number Windward/Leeward Medium0.6513
Triple Number Windward/Leeward High0.7686
Coastal/Long Distance0.7417
Predominantly Upwind0.7498
Predominantly Downwind0.8021
For information
General Purpose Handicap (GPH)834.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8135
Distanseseilas Trippeltall svak vind0.6121
Distanseseilas Trippeltall mellomvind0.8187
Distanseseilas Trippeltall sterk vind0.9328
Pølsebane Trippeltall svak vind0.4697
Pølsebane Trippeltall mellomvind0.6513
Pølsebane Trippeltall sterk vind0.7686
Motvind Singeltall0.7498
Medvind Singeltall0.8021
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Coastal/Long Distance808.90.7417
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind800.20.7498
Predominantly Downwind748.10.8021
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore743.50.8070
Cape Doctor Coastal615.60.9747
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6121
Triple Number Coastal/Long Distance Medium0.8187
Triple Number Coastal/Long Distance High0.9328
Triple Number Windward/Leeward Low0.4697
Triple Number Windward/Leeward Medium0.6513
Triple Number Windward/Leeward High0.7686
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6121
Triple Number Coastal/Long Distance Medium0.8187
Triple Number Coastal/Long Distance High0.9328
Triple Number Windward/Leeward Low0.4697
Triple Number Windward/Leeward Medium0.6513
Triple Number Windward/Leeward High0.7686
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance808.90.7417
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Predominantly Upwind800.20.7498
Predominantly Downwind748.10.8021
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2141.11415.61063.6877.6760.1696.6652.1588.9574.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance808.90.7417
Triple Number Coastal/Long Distance Low980.20.6121
Triple Number Coastal/Long Distance Medium732.90.8187
Triple Number Coastal/Long Distance High643.20.9328
Triple Number Windward/Leeward Low1277.40.4697
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2141.11415.61063.6877.6760.1696.6652.1588.9574.8
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low980.20.6121
Triple Number AP Medium732.90.8186
Triple Number AP High643.20.9328
Triple Number Windward/Leeward Low1335.60.4492
Triple Number Windward/Leeward Medium921.20.6513
Triple Number Windward/Leeward High780.60.7686
Single Number Predominant Upwind835.30.7183
Single Number Predominant Reaching727.00.8254
Single Number Predominant Downwind785.70.7637
Predominant Upwind - Low1186.90.5055
Predominant Upwind - Low/Med892.60.6722
Predominant Upwind - Medium770.30.7789
Predominant Upwind - Med/High708.70.8466
Predominant Upwind - High690.50.8689
Predominant Downwind Low1196.20.5016
Predominant Downwind Low/Med865.20.6935
Predominant Downwind Medium716.60.8373
Predominant Downwind Med/High627.20.9566
Predominant Downwind High588.61.0194
Predominant Reaching Low1050.60.5711
Predominant Reaching Low/Med782.70.7666
Predominant Reaching Medium669.60.8961
Predominant Reaching Med/High608.50.9861
Predominant Reaching High583.81.0278
SA/DSPL Upwind15.02SA/DSPL Downwind15.57
Scoring OptionTODTOT
5-Band Windward/Leeward Low1496.80.4009
5-Band Windward/Leeward Low/Med1085.60.5527
5-Band Windward/Leeward Medium901.50.6656
5-Band Windward/Leeward Med/High793.00.7567
5-Band Windward/Leeward High754.10.7956
Windward/Leeward 60-40 Low1503.80.3990
Windward/Leeward 60-40 Low/Med1099.30.5458
Windward/Leeward 60-40 Medium921.80.6509
Windward/Leeward 60-40 Med/High821.70.7302
Windward/Leeward 60-40 High788.90.7606
5-Band AP Low1084.40.5533
5-Band AP Low/Med845.10.7099
5-Band AP Medium720.10.8332
5-Band AP Med/High651.30.9213
5-Band AP High625.20.9597
5-Band SF Bay Tour - Low1288.10.4658
5-Band SF Bay Tour - Low/Med1038.20.5779
5-Band SF Bay Tour - Medium871.10.6888
5-Band SF Bay Tour - Med/High777.10.7721
5-Band SF Bay Tour - High744.70.8057
Chicago-Mac Upwind0.6921
Chicago-Mac All Purpose0.7155
Chicago-Mac Downwind0.7319
Bayview-Mac Cove Island0.5096
Bayview-Mac Shore0.5139
Harvest Moon Regatta624.90.9601
Club Certificate2025
ZeepaardNED 962
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassTrewes 1AMeasurement16/01/2025HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.826Max. Beam2.516Draft1.210Displacement4,492Wetted area18.40IMS L7.228LSM07.011Acc. length8.177Sink (kg/mm) 11.92
VCGD-0.089VCGM-0.027RM Rated (kg·m) 47.2Limit of positive stability(°) N/AStability IndexN/ADefault crew weight415Declared crew weight350
PROPELLER
Propeller TypeSolid 2 blades
InstallationIn ApertureTwin screwNoHydro generatorNo
PRD0.450PBWPIPA0.0098
APHAPTAPB
RIG
Forestay tensionAftInner stayNone FittedMast materialWoodSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingYesAdjustable mast footNoRunning backstays0Checkstays0Spreaders1Rotating mastNo
P9.100IG9.360ISP9.360MDT10.115MDL10.146MDT2MDL2TLTaperMWGO
E3.850J3.220BAS1.210FSDSFJ0.120SPLWPLTPS3.340BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date16/01/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
ZeepaardNED 962
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.120.711.302.423.2420.35
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC0.220.971.733.243.814.388.20NoYes022.23*Legacy Code 0: SLU=8,20 SLE=7,40 AMG=3,40 ASF=4,6014.858.40NoNo 20.7423.718.40NoNo 15.8632.638.40YesNo 11.24
CRUISER/RACER REQUIREMENTS*
Accommodation length8.2 mTable area0.33 m²Headroom1.40 mMinimum number of berths3Personal gear stowage0.12 m³Fresh water capacity33 lMinimum number of seats in cockpit3Food stowage0.18 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.