International
One Design
Certificate
2024

Boat

H-boat

MNA-1234

Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles43.6°42.0°40.2°38.7°38.4°38.2°38.6°39.9°
Beat VMG2.773.383.824.094.204.264.294.22
52°4.225.065.535.795.935.996.056.05
60°4.455.265.705.956.106.176.256.27
75°4.595.395.846.116.306.446.586.65
90°4.745.606.046.266.396.606.907.12
110°4.755.646.136.486.767.007.397.78
120°4.585.516.046.426.777.107.928.76
135°4.085.025.766.176.536.897.7910.02
150°3.454.415.235.836.216.547.248.39
Run VMG2.993.824.555.205.726.106.747.43
Gybe Angles146.6°151.2°154.1°162.8°176.3°178.6°179.0°177.3°
APH ToD:675.7CDL: 6.106APH ToT: 0.8880CertNo:HBOAT
BOAT
ClassH-boatDesignerHans GroopBuilderAge date01/1983Series date01/1967Offset fileHBoat.od.offData fileHBOAT
HULL
Length Overall8.310 mMaximum Beam2.188 mDraft1.269 mDisplacement1,454 kgDLR6.6209IMS DivisionSportboatDynamic Allowance0.290%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight300 kg(declared)Minimum weight170 kg * when appliedNon Manual PowerNoCrew Arm ExtensionLoose or no lifelines
SAIL AREAS (m²)
MeasuredRatedMainsail15.5515.85Headsail Luffed10.4810.48Headsail FlyingSymmetric32.1232.12Asymmetric
STORM SAIL AREAS (m²)
Trysail4.57Storm Jib3.16Heavy Weather Jib8.52
SAIL LIMITS
Headsails5 * Woven polyester sails  Spinnakers4
STABILITY
Righting Moment18.6 kg·mStability Index117.7
COMMENTS
According to class rules
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.

International
One Design
Certificate
2024

Boat

H-boat

MNA-1234

Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1300.01064.9942.5880.6857.0845.0840.0853.9
52°852.2711.9650.5621.3607.3600.7594.9595.1
60°809.2684.7631.4605.1590.6583.2575.9574.1
75°785.1668.5616.4589.5571.2558.8546.7541.0
90°760.2642.4596.3574.7563.2545.9521.4506.0
110°757.5638.0587.1555.7532.2514.3486.8462.9
120°785.4653.9595.9560.5531.6506.9454.7411.1
135°882.9716.7625.5583.1551.1522.4462.1359.3
150°1044.4816.5688.7617.8580.2550.5497.5429.2
Run VMG1206.0942.0791.8692.0629.0589.9534.4484.8
Selected Courses
Windward / Leeward1253.01003.4867.2786.3743.0717.5687.2669.3
All purpose962.1787.1698.8650.3623.6604.7577.4552.5
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward827.00.7255
All purpose675.70.8880
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance734.70.8166
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1248.3942.6784.0693.0646.7610.5549.1524.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6241
Downwind "popa"0.7799
70% up, 30% down "Ilhabela"0.6639
30% up, 70% down "Ilhabela-inverso"0.7256
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Predominantly Upwind735.00.8163
Predominantly Downwind681.30.8806
Custom scoring options for Canada
Scoring OptionTODTOT
Predominant Upwind733.50.8180
Predominant Reaching655.70.9151
Predominant Downwind655.70.9151
Predominant Upwind - Low972.50.6170
Predominant Upwind - Low/Med808.60.7420
Predominant Upwind - Medium710.60.8443
Predominant Upwind - Med/High663.80.9039
Predominant Upwind - High643.80.9320
Predominant Reaching Low854.40.7022
Predominant Reaching Low/Med712.90.8416
Predominant Reaching Medium627.80.9558
Predominant Reaching Med/High578.21.0377
Predominant Reaching High543.61.1037
Predominant Downwind Low854.40.7022
Predominant Downwind Low/Med773.60.7756
Predominant Downwind Medium656.30.9142
Predominant Downwind Med/High584.41.0266
Predominant Downwind High537.41.1165
Harvest Moon Regatta584.61.0263
Chicago-Mac Upwind0.8009
Chicago-Mac All Purpose0.8299
Chicago-Mac Downwind0.8653
Bayview-Mac Cove Island0.7690
Bayview-Mac Shore0.7738
Scoring OptionTODTOT
5-Band Windward/Leeward Low1196.30.5015
5-Band Windward/Leeward Low/Med960.10.6249
5-Band Windward/Leeward Medium804.90.7454
5-Band Windward/Leeward Med/High722.40.8305
5-Band Windward/Leeward High689.30.8704
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Windward/Leeward 60-40 Low1206.40.4973
Windward/Leeward 60-40 Low/Med973.90.6161
Windward/Leeward 60-40 Medium823.80.7283
Windward/Leeward 60-40 Med/High747.80.8024
Windward/Leeward 60-40 High720.10.8332
5-Band AP Low922.30.6505
5-Band AP Low/Med761.50.7879
5-Band AP Medium661.50.9070
5-Band AP Med/High607.10.9883
5-Band AP High577.81.0384
Triple Number AP Low874.60.6861
Triple Number AP Medium671.30.8938
Triple Number AP High599.21.0014
5-Band SF Bay Tour - Low1137.70.5274
5-Band SF Bay Tour - Low/Med920.10.6521
5-Band SF Bay Tour - Medium780.60.7687
5-Band SF Bay Tour - Med/High708.00.8475
5-Band SF Bay Tour - High675.70.8879
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance734.70.8166
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1248.3942.6784.0693.0646.7610.5549.1524.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance734.70.8166
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1248.3942.6784.0693.0646.7610.5549.1524.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance734.7
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1248.3942.6784.0693.0646.7610.5549.1524.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)734.70.8166
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1248.3942.6784.0693.0646.7610.5549.1524.3
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6861
Triple Number Coastal/Long Distance Medium0.8939
Triple Number Coastal/Long Distance High1.0014
Triple Number Windward/Leeward Low0.5318
Triple Number Windward/Leeward Medium0.7312
Triple Number Windward/Leeward High0.8421
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1248.3942.6784.0693.0646.7610.5549.1524.3
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance734.70.8166
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1248.3942.6784.0693.0646.7610.5549.1524.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance734.70.8166
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1248.3942.6784.0693.0646.7610.5549.1524.3
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance734.70.8166
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1248.3942.6784.0693.0646.7610.5549.1524.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low874.5
Triple Number Coastal/Long Distance Medium671.2
Triple Number Coastal/Long Distance High599.2
Triple Number Windward/Leeward Low1128.2
Triple Number Windward/Leeward Medium820.6
Triple Number Windward/Leeward High712.5
Predominantly Upwind735.0
Predominantly Downwind681.3
Predominantly Reaching655.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance734.70.8166
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1248.3942.6784.0693.0646.7610.5549.1524.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6861
Triple Number Coastal/Long Distance Medium0.8939
Triple Number Coastal/Long Distance High1.0014
Triple Number Windward/Leeward Low0.5318
Triple Number Windward/Leeward Medium0.7312
Triple Number Windward/Leeward High0.8421
Coastal/Long Distance0.8166
Predominantly Upwind0.8163
Predominantly Downwind0.8806
For information
General Purpose Handicap (GPH)759.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.6861
Tretall Distanseseilas Mellomvind0.8939
Tretall Distanseseilas Mye vind1.0014
Tretall Pølsebane Lite vind0.5318
Tretall Pølsebane Mellomvind0.7312
Tretall Pølsebane Mye vind0.8421
Distanseseilas ett tall (OSN 8-16kn)0.8166
Distanseseilas ett tall (APH 6-20kn)0.8880
Enkeltall Motvind0.8163
Enkeltall Medvind0.8806
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Coastal/Long Distance734.70.8166
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind735.00.8163
Predominantly Downwind681.30.8806
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore674.70.8893
Cape Doctor Coastal559.91.0715
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6861
Triple Number Coastal/Long Distance Medium0.8939
Triple Number Coastal/Long Distance High1.0014
Triple Number Windward/Leeward Low0.5318
Triple Number Windward/Leeward Medium0.7312
Triple Number Windward/Leeward High0.8421
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6861
Triple Number Coastal/Long Distance Medium0.8939
Triple Number Coastal/Long Distance High1.0014
Triple Number Windward/Leeward Low0.5318
Triple Number Windward/Leeward Medium0.7312
Triple Number Windward/Leeward High0.8421
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance734.70.8166
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Predominantly Upwind735.00.8163
Predominantly Downwind681.30.8806
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1248.3942.6784.0693.0646.7610.5549.1524.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance734.70.8166
Triple Number Coastal/Long Distance Low874.50.6861
Triple Number Coastal/Long Distance Medium671.20.8939
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1248.3942.6784.0693.0646.7610.5549.1524.3
Custom scoring options for United States of America
Scoring OptionTODTOT
Predominant Upwind733.50.8180
Predominant Reaching655.70.9151
Predominant Downwind655.70.9151
Predominant Upwind - Low972.50.6170
Predominant Upwind - Low/Med808.60.7420
Predominant Upwind - Medium710.60.8443
Predominant Upwind - Med/High663.80.9039
Predominant Upwind - High643.80.9320
Predominant Reaching Low854.40.7022
Predominant Reaching Low/Med712.90.8416
Predominant Reaching Medium627.80.9558
Predominant Reaching Med/High578.21.0377
Predominant Reaching High543.61.1037
Predominant Downwind Low854.40.7022
Predominant Downwind Low/Med773.60.7756
Predominant Downwind Medium656.30.9142
Predominant Downwind Med/High584.41.0266
Predominant Downwind High537.41.1165
Harvest Moon Regatta584.61.0263
Chicago-Mac Upwind0.8009
Chicago-Mac All Purpose0.8299
Chicago-Mac Downwind0.8653
Bayview-Mac Cove Island0.7690
Bayview-Mac Shore0.7738
Scoring OptionTODTOT
5-Band Windward/Leeward Low1196.30.5015
5-Band Windward/Leeward Low/Med960.10.6249
5-Band Windward/Leeward Medium804.90.7454
5-Band Windward/Leeward Med/High722.40.8305
5-Band Windward/Leeward High689.30.8704
Triple Number Windward/Leeward Low1128.20.5318
Triple Number Windward/Leeward Medium820.60.7312
Triple Number Windward/Leeward High712.50.8421
Windward/Leeward 60-40 Low1206.40.4973
Windward/Leeward 60-40 Low/Med973.90.6161
Windward/Leeward 60-40 Medium823.80.7283
Windward/Leeward 60-40 Med/High747.80.8024
Windward/Leeward 60-40 High720.10.8332
5-Band AP Low922.30.6505
5-Band AP Low/Med761.50.7879
5-Band AP Medium661.50.9070
5-Band AP Med/High607.10.9883
5-Band AP High577.81.0384
Triple Number AP Low874.60.6861
Triple Number AP Medium671.30.8938
Triple Number AP High599.21.0014
5-Band SF Bay Tour - Low1137.70.5274
5-Band SF Bay Tour - Low/Med920.10.6521
5-Band SF Bay Tour - Medium780.60.7687
5-Band SF Bay Tour - Med/High708.00.8475
5-Band SF Bay Tour - High675.70.8879

International
One Design
Certificate
2024

Boat

H-boat

MNA-1234

Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassH-boatMeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA8.310Max. Beam2.188Draft1.269Displacement1,454Wetted area10.83IMS L6.461LSM06.033Acc. length7.111Sink (kg/mm) 7.27
VCGD-0.149VCGM-0.116RM Rated (kg·m) 18.6Limit of positive stability(°) 119.6Stability Index117.7Default crew weight335Declared crew weight300
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunners/Checkstays0Spreaders1Rotating mastNo
P8.700IG7.940ISP8.040MDT10.080MDL10.116MDT20.050MDL20.070TL1.550MW0.116GO0.116
E3.000J2.470BAS0.900FSD0.000SFJ0.720SPL2.495WPLTPS0.000BD0.090MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date05/02/2021
SFFP0.419FFM0.850FF0.857LCFcl4.405SG1.0000
SAFP8.053FAM0.640FA0.644LCFsh4.545HBI0.690
W118.0W218.0W318.0W418.0
PD1535.1PD2534.0PD3536.0PD4537.0
WD7.050PLM9000.00GSA1.0RSA1.0RM18.7
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

International
One Design
Certificate
2024

Boat

H-boat

MNA-1234

MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.120.651.111.9115.55Class Rules
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.052.727.58NoNo 10.48Class rules
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment17.307.307.305.404.8032.12Class rules
CRUISER/RACER REQUIREMENTS*
Accommodation length7.1 mTable area0.22 m²Headroom1.40 mMinimum number of berths2Personal gear stowage0.08 m³Fresh water capacity11 lMinimum number of seats in cockpit 4 Food stowage0.12 m³Fuel capacity20 l
*This list refers to the calculated requirements. See IMS Appendix 1 for the complete list of requirements.