One DesignInternational Certificate2025
H-boatMNA-1234
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 Angles43.5°43.5°41.9°40.0°38.6°38.2°38.0°38.3°39.7°
Beat VMG2.002.773.393.834.104.214.274.304.23
52°3.094.235.065.545.805.936.006.066.06
60°3.304.455.265.705.956.106.186.266.28
75°3.424.595.395.846.116.306.446.596.66
90°3.494.745.616.046.276.396.606.907.12
110°3.514.755.636.126.466.756.987.387.76
120°3.334.565.486.026.416.767.097.918.76
135°2.914.065.015.756.186.546.907.8210.09
150°2.403.464.435.255.856.236.577.298.62
Run VMG2.073.003.854.585.245.736.106.737.47
Gybe Angles147.8°147.8°152.3°155.2°163.0°170.9°177.2°177.7°142.1°
APH ToD:674.5CDL: 6.121APH ToT: 0.8895CertNo: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.
ORC Ref  02920003FN5Issued on 09/01/2025Valid until 31/12/2025
VPP ver: 2025 1.00 | © ORC | www.orc.org
One DesignInternational Certificate2025
H-boatMNA-1234
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 VMG1799.01298.71063.3940.5878.3854.6842.4837.0850.3
52°1163.8851.7711.3649.9620.8606.8600.2594.4594.4
60°1092.1808.8684.3631.1604.8590.2582.9575.5573.7
75°1052.7785.0668.3616.2589.3571.1558.6546.6540.8
90°1030.1760.2642.2596.2574.6563.4545.9521.4506.0
110°1027.0757.7639.0588.4557.1533.4515.5487.7463.7
120°1081.3788.6656.4597.5561.7532.5507.5454.9410.8
135°1238.1886.9717.9625.7582.7550.4521.4460.1356.7
150°1503.11039.9812.3685.4615.4577.9547.9494.0417.6
Run VMG1741.61200.8936.1786.4686.6628.4590.1534.6482.3
Selected Courses
Windward / Leeward1768.71249.7999.7863.5782.5741.5716.3685.8666.3
All purpose1335.4961.3785.9697.4649.0622.6603.7576.1549.9
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward824.10.7281
All purpose674.50.8895
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance732.90.8187
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1873.81244.8939.5781.6691.2645.8609.6548.4522.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6255
Downwind "popa"0.7831
70% up, 30% down "Ilhabela"0.6657
30% up, 70% down "Ilhabela-inverso"0.7281
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Predominantly Upwind733.70.8177
Predominantly Downwind679.70.8828
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low873.60.6868
Triple Number AP Medium670.00.8955
Triple Number AP High598.11.0032
Triple Number Windward/Leeward Low1175.60.5104
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Single Number Predominant Upwind765.00.7843
Single Number Predominant Reaching671.40.8936
Single Number Predominant Downwind709.90.8452
Predominant Upwind - Low1064.80.5635
Predominant Upwind - Low/Med807.50.7430
Predominant Upwind - Medium709.40.8458
Predominant Upwind - Med/High662.60.9055
Predominant Upwind - High642.40.9340
Predominant Downwind Low1050.70.5710
Predominant Downwind Low/Med771.90.7773
Predominant Downwind Medium654.70.9164
Predominant Downwind Med/High583.71.0279
Predominant Downwind High536.41.1187
Predominant Reaching Low936.20.6409
Predominant Reaching Low/Med712.50.8422
Predominant Reaching Medium627.10.9568
Predominant Reaching Med/High577.61.0389
Predominant Reaching High542.71.1055
SA/DSPL Upwind20.25SA/DSPL Downwind37.09
Scoring OptionTODTOT
5-Band Windward/Leeward Low1317.30.4555
5-Band Windward/Leeward Low/Med956.40.6273
5-Band Windward/Leeward Medium801.80.7483
5-Band Windward/Leeward Med/High720.90.8323
5-Band Windward/Leeward High687.70.8725
Windward/Leeward 60-40 Low1326.90.4522
Windward/Leeward 60-40 Low/Med970.60.6182
Windward/Leeward 60-40 Medium820.90.7309
Windward/Leeward 60-40 Med/High746.10.8042
Windward/Leeward 60-40 High718.20.8354
5-Band AP Low965.50.6214
5-Band AP Low/Med760.30.7891
5-Band AP Medium660.30.9087
5-Band AP Med/High606.00.9900
5-Band AP High576.31.0411
5-Band SF Bay Tour - Low1135.50.5284
5-Band SF Bay Tour - Low/Med917.40.6540
5-Band SF Bay Tour - Medium778.10.7711
5-Band SF Bay Tour - Med/High706.30.8495
5-Band SF Bay Tour - High673.60.8908
Chicago-Mac Upwind0.7600
Chicago-Mac All Purpose0.7895
Chicago-Mac Downwind0.8141
Bayview-Mac Cove Island0.5730
Bayview-Mac Shore0.5773
Harvest Moon Regatta584.11.0272
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance732.90.8187
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1873.81244.8939.5781.6691.2645.8609.6548.4522.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance732.90.8187
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1873.81244.8939.5781.6691.2645.8609.6548.4522.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance732.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1873.81244.8939.5781.6691.2645.8609.6548.4522.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating732.90.8187
FinRating, kevyt tuuli1292.90.7734
FinRating, kova tuuli577.30.8661
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8187
Triple Number Coastal/Long Distance Low0.6868
Triple Number Coastal/Long Distance Medium0.8956
Triple Number Coastal/Long Distance High1.0032
Triple Number Windward/Leeward Low0.5335
Triple Number Windward/Leeward Medium0.7341
Triple Number Windward/Leeward High0.8437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1873.81244.8939.5781.6691.2645.8609.6548.4522.3
For information
General Purpose Handicap (GPH)758.6
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance732.90.8187
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1873.81244.8939.5781.6691.2645.8609.6548.4522.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance732.90.8187
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1873.81244.8939.5781.6691.2645.8609.6548.4522.3
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance732.90.8187
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1873.81244.8939.5781.6691.2645.8609.6548.4522.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low873.6
Triple Number Coastal/Long Distance Medium669.9
Triple Number Coastal/Long Distance High598.1
Triple Number Windward/Leeward Low1124.6
Triple Number Windward/Leeward Medium817.3
Triple Number Windward/Leeward High711.2
Predominantly Upwind733.7
Predominantly Downwind679.7
Predominantly Reaching654.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance732.90.8187
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1873.81244.8939.5781.6691.2645.8609.6548.4522.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6868
Triple Number Coastal/Long Distance Medium0.8956
Triple Number Coastal/Long Distance High1.0032
Triple Number Windward/Leeward Low0.5335
Triple Number Windward/Leeward Medium0.7341
Triple Number Windward/Leeward High0.8437
Coastal/Long Distance0.8187
Predominantly Upwind0.8177
Predominantly Downwind0.8828
For information
General Purpose Handicap (GPH)758.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8895
Distanseseilas Trippeltall svak vind0.6868
Distanseseilas Trippeltall mellomvind0.8956
Distanseseilas Trippeltall sterk vind1.0032
Pølsebane Trippeltall svak vind0.5335
Pølsebane Trippeltall mellomvind0.7341
Pølsebane Trippeltall sterk vind0.8437
Motvind Singeltall0.8177
Medvind Singeltall0.8828
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Coastal/Long Distance732.90.8187
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind733.70.8177
Predominantly Downwind679.70.8828
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore672.10.8927
Cape Doctor Coastal557.81.0757
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6868
Triple Number Coastal/Long Distance Medium0.8956
Triple Number Coastal/Long Distance High1.0032
Triple Number Windward/Leeward Low0.5335
Triple Number Windward/Leeward Medium0.7341
Triple Number Windward/Leeward High0.8437
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6868
Triple Number Coastal/Long Distance Medium0.8956
Triple Number Coastal/Long Distance High1.0032
Triple Number Windward/Leeward Low0.5335
Triple Number Windward/Leeward Medium0.7341
Triple Number Windward/Leeward High0.8437
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance732.90.8187
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Predominantly Upwind733.70.8177
Predominantly Downwind679.70.8828
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1873.81244.8939.5781.6691.2645.8609.6548.4522.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance732.90.8187
Triple Number Coastal/Long Distance Low873.60.6868
Triple Number Coastal/Long Distance Medium669.90.8956
Triple Number Coastal/Long Distance High598.11.0032
Triple Number Windward/Leeward Low1124.60.5335
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1873.81244.8939.5781.6691.2645.8609.6548.4522.3
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low873.60.6868
Triple Number AP Medium670.00.8955
Triple Number AP High598.11.0032
Triple Number Windward/Leeward Low1175.60.5104
Triple Number Windward/Leeward Medium817.30.7341
Triple Number Windward/Leeward High711.20.8437
Single Number Predominant Upwind765.00.7843
Single Number Predominant Reaching671.40.8936
Single Number Predominant Downwind709.90.8452
Predominant Upwind - Low1064.80.5635
Predominant Upwind - Low/Med807.50.7430
Predominant Upwind - Medium709.40.8458
Predominant Upwind - Med/High662.60.9055
Predominant Upwind - High642.40.9340
Predominant Downwind Low1050.70.5710
Predominant Downwind Low/Med771.90.7773
Predominant Downwind Medium654.70.9164
Predominant Downwind Med/High583.71.0279
Predominant Downwind High536.41.1187
Predominant Reaching Low936.20.6409
Predominant Reaching Low/Med712.50.8422
Predominant Reaching Medium627.10.9568
Predominant Reaching Med/High577.61.0389
Predominant Reaching High542.71.1055
SA/DSPL Upwind20.25SA/DSPL Downwind37.09
Scoring OptionTODTOT
5-Band Windward/Leeward Low1317.30.4555
5-Band Windward/Leeward Low/Med956.40.6273
5-Band Windward/Leeward Medium801.80.7483
5-Band Windward/Leeward Med/High720.90.8323
5-Band Windward/Leeward High687.70.8725
Windward/Leeward 60-40 Low1326.90.4522
Windward/Leeward 60-40 Low/Med970.60.6182
Windward/Leeward 60-40 Medium820.90.7309
Windward/Leeward 60-40 Med/High746.10.8042
Windward/Leeward 60-40 High718.20.8354
5-Band AP Low965.50.6214
5-Band AP Low/Med760.30.7891
5-Band AP Medium660.30.9087
5-Band AP Med/High606.00.9900
5-Band AP High576.31.0411
5-Band SF Bay Tour - Low1135.50.5284
5-Band SF Bay Tour - Low/Med917.40.6540
5-Band SF Bay Tour - Medium778.10.7711
5-Band SF Bay Tour - Med/High706.30.8495
5-Band SF Bay Tour - High673.60.8908
Chicago-Mac Upwind0.7600
Chicago-Mac All Purpose0.7895
Chicago-Mac Downwind0.8141
Bayview-Mac Cove Island0.5730
Bayview-Mac Shore0.5773
Harvest Moon Regatta584.11.0272
ORC Ref  02920003FN5Issued on 09/01/2025Valid until 31/12/2025
VPP ver: 2025 1.00 | © ORC | www.orc.org
One DesignInternational Certificate2025
H-boatMNA-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 footNoRunning backstays0Checkstays0Spreaders1Rotating 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
ORC Ref  02920003FN5Issued on 09/01/2025Valid until 31/12/2025
VPP ver: 2025 1.00 | © ORC | www.orc.org
One DesignInternational Certificate2025
H-boatMNA-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
ORC Ref  02920003FN5Issued on 09/01/2025Valid until 31/12/2025
VPP ver: 2025 1.00 | © ORC | www.orc.org