Double HandedClub Certificate2025
SkarvenNOR 15912
Norges Seilforbund
Sognsveien 73
0854 OSLO
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 Angles42.7°42.7°40.8°40.5°40.5°40.4°40.5°41.4°43.4°
Beat VMG2.293.083.633.964.144.214.224.173.99
52°3.514.635.355.786.016.116.156.166.07
60°3.704.855.565.976.196.316.366.406.36
75°3.835.005.716.126.366.526.636.756.78
90°3.754.945.696.136.406.606.766.997.14
110°3.324.525.406.016.376.636.857.237.51
120°3.134.305.215.876.286.566.807.237.64
135°2.723.824.755.506.026.366.627.067.49
150°2.293.264.124.855.475.946.266.767.19
Run VMG1.962.833.644.405.075.656.076.627.06
Gybe Angles145.0°145.0°170.3°172.1°173.2°175.0°176.6°177.5°177.3°
APH ToD:674.9CDL: 6.614APH ToT: 0.8890CertNo:674646
BOAT
ClassHR 31DesignerFrersBuilderHallberg RassyAge date01/1992Series date01/1992Offset fileHR31_CL.offData file674646
HULL
Length Overall9.231 mMaximum Beam3.308 mDraft1.696 mDisplacement4,492 kgDLR12.4583IMS DivisionCruiser/RacerDynamic Allowance0.530%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.350m
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail26.1026.45Headsail Luffed26.4826.48Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail7.95Storm Jib7.15Heavy Weather Jib19.28
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.
Double HandedClub Certificate2025
SkarvenNOR 15912
Norges Seilforbund
Sognsveien 73
0854 OSLO
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 VMG1571.01169.7992.5908.0869.0856.0852.2863.9901.7
52°1025.1777.6673.0622.4599.2589.1584.9584.5593.2
60°973.7743.0647.9603.4582.0570.9565.8562.6565.9
75°940.9720.0630.1588.4566.2552.5543.3533.7530.6
90°959.3728.9632.7587.2562.1545.1532.3515.0504.3
110°1083.4797.1666.2599.4565.3543.1525.5497.6479.5
120°1148.7837.0691.2613.2573.5549.0529.7497.9471.3
135°1324.7942.4757.8654.9597.5565.7544.0510.1480.9
150°1571.41102.9873.9742.0658.3606.3574.8532.5500.4
Run VMG1840.41273.5990.1817.3709.9637.7592.8543.7510.0
Selected Courses
Windward / Leeward1702.51221.6991.3862.7789.4746.8722.5703.8705.8
All purpose1283.7940.1781.2696.8650.5624.3608.2591.4586.8
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward826.40.7261
All purpose674.90.8890
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance735.30.8160
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1825.11226.8935.3782.5695.5648.8614.9562.1551.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6450
Downwind "popa"0.7547
70% up, 30% down "Ilhabela"0.6744
30% up, 70% down "Ilhabela-inverso"0.7181
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Predominantly Upwind721.10.8320
Predominantly Downwind689.90.8696
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low860.60.6971
Triple Number AP Medium670.30.8951
Triple Number AP High605.90.9902
Triple Number Windward/Leeward Low1153.50.5201
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Single Number Predominant Upwind747.90.8023
Single Number Predominant Reaching668.80.8971
Single Number Predominant Downwind722.50.8305
Predominant Upwind - Low999.80.6001
Predominant Upwind - Low/Med782.10.7672
Predominant Upwind - Medium699.00.8584
Predominant Upwind - Med/High661.90.9065
Predominant Upwind - High654.50.9167
Predominant Downwind Low1069.30.5611
Predominant Downwind Low/Med787.20.7621
Predominant Downwind Medium663.30.9046
Predominant Downwind Med/High591.51.0143
Predominant Downwind High559.91.0716
Predominant Reaching Low919.50.6526
Predominant Reaching Low/Med709.50.8456
Predominant Reaching Medium624.40.9609
Predominant Reaching Med/High578.21.0377
Predominant Reaching High557.91.0755
SA/DSPL Upwind19.22SA/DSPL Downwind19.22
Scoring OptionTODTOT
5-Band Windward/Leeward Low1285.10.4669
5-Band Windward/Leeward Low/Med950.10.6315
5-Band Windward/Leeward Medium805.70.7447
5-Band Windward/Leeward Med/High729.10.8230
5-Band Windward/Leeward High707.40.8482
Windward/Leeward 60-40 Low1273.20.4713
Windward/Leeward 60-40 Low/Med954.20.6288
Windward/Leeward 60-40 Medium821.00.7308
Windward/Leeward 60-40 Med/High754.50.7952
Windward/Leeward 60-40 High739.60.8113
5-Band AP Low955.00.6283
5-Band AP Low/Med755.60.7941
5-Band AP Medium661.20.9075
5-Band AP Med/High611.70.9809
5-Band AP High593.51.0109
5-Band SF Bay Tour - Low1108.00.5415
5-Band SF Bay Tour - Low/Med910.10.6593
5-Band SF Bay Tour - Medium782.80.7665
5-Band SF Bay Tour - Med/High718.20.8354
5-Band SF Bay Tour - High700.40.8567
Chicago-Mac Upwind0.7798
Chicago-Mac All Purpose0.7938
Chicago-Mac Downwind0.7998
Bayview-Mac Cove Island0.5845
Bayview-Mac Shore0.5907
Harvest Moon Regatta587.81.0208
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance735.30.8160
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1825.11226.8935.3782.5695.5648.8614.9562.1551.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance735.30.8160
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1825.11226.8935.3782.5695.5648.8614.9562.1551.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance735.3
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1825.11226.8935.3782.5695.5648.8614.9562.1551.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating735.30.8160
FinRating, kevyt tuuli1263.70.7914
FinRating, kova tuuli598.40.8355
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8160
Triple Number Coastal/Long Distance Low0.6971
Triple Number Coastal/Long Distance Medium0.8952
Triple Number Coastal/Long Distance High0.9902
Triple Number Windward/Leeward Low0.5423
Triple Number Windward/Leeward Medium0.7317
Triple Number Windward/Leeward High0.8315
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1825.11226.8935.3782.5695.5648.8614.9562.1551.4
For information
General Purpose Handicap (GPH)755.7
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance735.30.8160
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1825.11226.8935.3782.5695.5648.8614.9562.1551.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance735.30.8160
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1825.11226.8935.3782.5695.5648.8614.9562.1551.4
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance735.30.8160
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1825.11226.8935.3782.5695.5648.8614.9562.1551.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low860.7
Triple Number Coastal/Long Distance Medium670.2
Triple Number Coastal/Long Distance High605.9
Triple Number Windward/Leeward Low1106.4
Triple Number Windward/Leeward Medium820.0
Triple Number Windward/Leeward High721.6
Predominantly Upwind721.1
Predominantly Downwind689.9
Predominantly Reaching657.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance735.30.8160
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1825.11226.8935.3782.5695.5648.8614.9562.1551.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6971
Triple Number Coastal/Long Distance Medium0.8952
Triple Number Coastal/Long Distance High0.9902
Triple Number Windward/Leeward Low0.5423
Triple Number Windward/Leeward Medium0.7317
Triple Number Windward/Leeward High0.8315
Coastal/Long Distance0.8160
Predominantly Upwind0.8320
Predominantly Downwind0.8696
For information
General Purpose Handicap (GPH)755.7
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8890
Distanseseilas Trippeltall svak vind0.6971
Distanseseilas Trippeltall mellomvind0.8952
Distanseseilas Trippeltall sterk vind0.9902
Pølsebane Trippeltall svak vind0.5423
Pølsebane Trippeltall mellomvind0.7317
Pølsebane Trippeltall sterk vind0.8315
Motvind Singeltall0.8320
Medvind Singeltall0.8696
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Coastal/Long Distance735.30.8160
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind721.10.8320
Predominantly Downwind689.90.8696
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore705.20.8508
Cape Doctor Coastal588.21.0201
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6971
Triple Number Coastal/Long Distance Medium0.8952
Triple Number Coastal/Long Distance High0.9902
Triple Number Windward/Leeward Low0.5423
Triple Number Windward/Leeward Medium0.7317
Triple Number Windward/Leeward High0.8315
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6971
Triple Number Coastal/Long Distance Medium0.8952
Triple Number Coastal/Long Distance High0.9902
Triple Number Windward/Leeward Low0.5423
Triple Number Windward/Leeward Medium0.7317
Triple Number Windward/Leeward High0.8315
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance735.30.8160
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Predominantly Upwind721.10.8320
Predominantly Downwind689.90.8696
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1825.11226.8935.3782.5695.5648.8614.9562.1551.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance735.30.8160
Triple Number Coastal/Long Distance Low860.70.6971
Triple Number Coastal/Long Distance Medium670.20.8952
Triple Number Coastal/Long Distance High605.90.9902
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1825.11226.8935.3782.5695.5648.8614.9562.1551.4
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low860.60.6971
Triple Number AP Medium670.30.8951
Triple Number AP High605.90.9902
Triple Number Windward/Leeward Low1153.50.5201
Triple Number Windward/Leeward Medium820.00.7317
Triple Number Windward/Leeward High721.60.8315
Single Number Predominant Upwind747.90.8023
Single Number Predominant Reaching668.80.8971
Single Number Predominant Downwind722.50.8305
Predominant Upwind - Low999.80.6001
Predominant Upwind - Low/Med782.10.7672
Predominant Upwind - Medium699.00.8584
Predominant Upwind - Med/High661.90.9065
Predominant Upwind - High654.50.9167
Predominant Downwind Low1069.30.5611
Predominant Downwind Low/Med787.20.7621
Predominant Downwind Medium663.30.9046
Predominant Downwind Med/High591.51.0143
Predominant Downwind High559.91.0716
Predominant Reaching Low919.50.6526
Predominant Reaching Low/Med709.50.8456
Predominant Reaching Medium624.40.9609
Predominant Reaching Med/High578.21.0377
Predominant Reaching High557.91.0755
SA/DSPL Upwind19.22SA/DSPL Downwind19.22
Scoring OptionTODTOT
5-Band Windward/Leeward Low1285.10.4669
5-Band Windward/Leeward Low/Med950.10.6315
5-Band Windward/Leeward Medium805.70.7447
5-Band Windward/Leeward Med/High729.10.8230
5-Band Windward/Leeward High707.40.8482
Windward/Leeward 60-40 Low1273.20.4713
Windward/Leeward 60-40 Low/Med954.20.6288
Windward/Leeward 60-40 Medium821.00.7308
Windward/Leeward 60-40 Med/High754.50.7952
Windward/Leeward 60-40 High739.60.8113
5-Band AP Low955.00.6283
5-Band AP Low/Med755.60.7941
5-Band AP Medium661.20.9075
5-Band AP Med/High611.70.9809
5-Band AP High593.51.0109
5-Band SF Bay Tour - Low1108.00.5415
5-Band SF Bay Tour - Low/Med910.10.6593
5-Band SF Bay Tour - Medium782.80.7665
5-Band SF Bay Tour - Med/High718.20.8354
5-Band SF Bay Tour - High700.40.8567
Chicago-Mac Upwind0.7798
Chicago-Mac All Purpose0.7938
Chicago-Mac Downwind0.7998
Bayview-Mac Cove Island0.5845
Bayview-Mac Shore0.5907
Harvest Moon Regatta587.81.0208
Double HandedClub Certificate2025
SkarvenNOR 15912
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassHR 31MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.231Max. Beam3.308Draft1.696Displacement4,492Wetted area18.56IMS L7.323LSM07.117Acc. length9.231Sink (kg/mm) 13.46
VCGD-0.062VCGM0.029RM Rated (kg·m) 76.6Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.350PBWPIPA0.0012
PSD0.000PHD0.000PHL0.000
PSA0.0°ESL0.000
ST10.000ST20.000ST30.000
ST40.000ST50.000
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P11.950IG11.950ISP12.000MDT10.140MDL10.170MDT20.000MDL20.000TL0.000MW0.000GO0.000
E3.800J3.560BAS1.510FSDFoilSFJ0.000SPL0.000WPLTPS3.600BD0.000MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
SkarvenNOR 15912
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment306-2019081911550.150.721.322.333.1226.1019/08/2019
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment306-2019081911560.080.581.132.293.534.8511.23NoNo 26.4819/08/2019
CRUISER/RACER REQUIREMENTS*
Accommodation length9.2 mTable area0.44 m²Headroom1.64 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity64 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity34 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.