Double HandedClub Certificate2025
SheebaNOR 3950
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 Angles43.6°43.6°41.4°40.8°41.3°41.5°41.7°42.6°44.2°
Beat VMG2.092.863.443.803.984.064.094.063.94
52°3.264.355.105.595.865.986.046.055.96
60°3.454.575.315.806.066.196.256.296.27
75°3.554.715.485.976.256.416.516.616.65
90°3.464.715.616.156.406.526.666.856.99
110°3.554.845.776.306.616.857.037.267.39
120°3.434.705.656.246.596.867.117.547.81
135°3.054.245.225.956.406.716.997.538.11
150°2.533.634.585.355.946.336.617.097.58
Run VMG2.203.143.974.635.165.585.926.506.93
Gybe Angles145.7°145.7°147.8°148.6°151.7°157.6°161.9°177.1°177.1°
APH ToD:671.7CDL: 6.547APH ToT: 0.8933CertNo:676176
BOAT
ClassHR 312DesignerEnderleinBuilderHallberg RassyAge date01/1982Series date01/1979Offset fileCLHR312.offData file676176
HULL
Length Overall9.420 mMaximum Beam3.090 mDraft1.600 mDisplacement5,018 kgDLR11.1468IMS DivisionCruiser/RacerDynamic Allowance0.680%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.380m
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail21.5421.82Headsail Luffed30.6430.64Headsail FlyingSymmetricAsymmetric59.0760.11 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail6.62Storm Jib7.54Heavy Weather Jib20.36
SAIL LIMITS
Headsails5Spinnakers4
✱ Asymmetric SHALL NOT be tacked on the pole
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.
ORC Ref  03440003KWMIssued on 18/03/2025Valid until 31/03/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org
Double HandedClub Certificate2025
SheebaNOR 3950
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 VMG1722.81257.31045.1947.2903.8886.6879.2885.7913.4
52°1104.1827.0705.2643.7614.2602.0596.5595.0604.0
60°1044.2788.3677.6620.9594.2581.7575.9572.1574.6
75°1013.2764.6657.3602.8576.2561.7553.2544.4541.5
90°1039.4765.0641.7585.6562.2551.7540.8525.6514.9
110°1014.0744.6624.0571.1544.3525.8512.2496.1486.9
120°1049.6766.7637.7577.1546.7524.7506.5477.3460.8
135°1181.4848.2689.4604.7562.8536.7515.1477.9444.1
150°1420.4992.7785.3672.9605.8568.7545.0507.7474.7
Run VMG1639.81146.2906.8777.0698.3645.7608.1554.2519.3
Selected Courses
Windward / Leeward1680.11201.7975.9862.1801.0766.2743.7719.9716.4
All purpose1281.6931.4769.3689.0648.3625.7610.7594.1588.1
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward834.00.7194
All purpose671.70.8933
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance730.50.8213
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1771.51196.2917.9776.2694.1650.3616.0562.2552.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6172
Downwind "popa"0.7871
70% up, 30% down "Ilhabela"0.6599
30% up, 70% down "Ilhabela-inverso"0.7270
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Predominantly Upwind732.90.8187
Predominantly Downwind672.50.8922
Custom scoring options for Canada
Scoring OptionTODTOT
TriNum AP Low850.30.7056
TriNum AP Med666.40.9004
TriNum AP High608.20.9865
TriNum W/L Low1136.70.5278
TriNum W/L Med827.20.7253
TriNum W/L Hig740.40.8104
Predom. Upwind763.20.7862
Predom. Reaching664.00.9036
Predom. Downwind702.50.8541
Predom. Up Low1032.30.5812
Predom. Up L/M797.20.7526
Predom. Up Med710.90.8441
Predom. Up M/H673.50.8909
Predom. Up High663.70.9040
Predom. Dn Low1011.60.5931
Predom. Dn L/M754.40.7953
Predom. Dn Med649.80.9234
Predom. Dn M/H589.61.0177
Predom. Dn High556.81.0775
Predom. Rc Low913.00.6572
Predom. Rc L/M699.50.8578
Predom. Rc Med619.00.9693
Predom. Rc M/H578.01.0380
Predom. Rc High557.21.0768
SA/DSPL Upwind17.71SA/DSPL Downwind27.36
Scoring OptionTODTOT
5B W/L Low1265.20.4742
5B W/L L/M943.20.6361
5B W/L Med815.10.7361
5B W/L M/H748.30.8018
5B W/L High723.40.8294
W/L 60-40 Low1276.30.4701
W/L 60-40 L/M958.80.6258
W/L 60-40 Med835.70.7180
W/L 60-40 M/H775.40.7738
W/L 60-40 High756.60.7930
5B AP Low935.00.6417
5B AP L/M747.00.8032
5B AP Med658.20.9116
5B AP M/H613.60.9778
5B AP High595.91.0069
5B SF Bay Low1096.00.5474
5B SF Bay L/M903.70.6639
5B SF Bay Med787.00.7624
5B SF Bay M/H729.00.8230
5B SF Bay High708.60.8467
Chicago-Mac Upwind0.7641
Chicago-Mac All Purpose0.7967
Chicago-Mac Downwind0.8258
BayMac Cove Island1018.30.5892
BayMac Shore1012.00.5929
Harvest Moon579.61.0352
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance730.50.8213
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1771.51196.2917.9776.2694.1650.3616.0562.2552.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance730.50.8213
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1771.51196.2917.9776.2694.1650.3616.0562.2552.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance730.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1771.51196.2917.9776.2694.1650.3616.0562.2552.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating730.50.8213
FinRating, kevyt tuuli1241.90.8052
FinRating, kova tuuli599.30.8342
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8213
Triple Number Coastal/Long Distance Low0.7056
Triple Number Coastal/Long Distance Medium0.9005
Triple Number Coastal/Long Distance High0.9865
Triple Number Windward/Leeward Low0.5510
Triple Number Windward/Leeward Medium0.7253
Triple Number Windward/Leeward High0.8104
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1771.51196.2917.9776.2694.1650.3616.0562.2552.6
For information
General Purpose Handicap (GPH)750.8
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance730.50.8213
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1771.51196.2917.9776.2694.1650.3616.0562.2552.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance730.50.8213
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1771.51196.2917.9776.2694.1650.3616.0562.2552.6
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance730.50.8213
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1771.51196.2917.9776.2694.1650.3616.0562.2552.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low850.3
Triple Number Coastal/Long Distance Medium666.3
Triple Number Coastal/Long Distance High608.2
Triple Number Windward/Leeward Low1088.9
Triple Number Windward/Leeward Medium827.2
Triple Number Windward/Leeward High740.4
Predominantly Upwind732.9
Predominantly Downwind672.5
Predominantly Reaching646.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance730.50.8213
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1771.51196.2917.9776.2694.1650.3616.0562.2552.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7056
Triple Number Coastal/Long Distance Medium0.9005
Triple Number Coastal/Long Distance High0.9865
Triple Number Windward/Leeward Low0.5510
Triple Number Windward/Leeward Medium0.7253
Triple Number Windward/Leeward High0.8104
Coastal/Long Distance0.8213
Predominantly Upwind0.8187
Predominantly Downwind0.8922
For information
General Purpose Handicap (GPH)750.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8933
Distanseseilas Trippeltall svak vind0.7056
Distanseseilas Trippeltall mellomvind0.9005
Distanseseilas Trippeltall sterk vind0.9865
Pølsebane Trippeltall svak vind0.5510
Pølsebane Trippeltall mellomvind0.7253
Pølsebane Trippeltall sterk vind0.8104
Motvind Singeltall0.8187
Medvind Singeltall0.8922
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Coastal/Long Distance730.50.8213
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind732.90.8187
Predominantly Downwind672.50.8922
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore717.40.8363
Cape Doctor Coastal589.91.0171
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7056
Triple Number Coastal/Long Distance Medium0.9005
Triple Number Coastal/Long Distance High0.9865
Triple Number Windward/Leeward Low0.5510
Triple Number Windward/Leeward Medium0.7253
Triple Number Windward/Leeward High0.8104
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7056
Triple Number Coastal/Long Distance Medium0.9005
Triple Number Coastal/Long Distance High0.9865
Triple Number Windward/Leeward Low0.5510
Triple Number Windward/Leeward Medium0.7253
Triple Number Windward/Leeward High0.8104
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance730.50.8213
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Predominantly Upwind732.90.8187
Predominantly Downwind672.50.8922
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1771.51196.2917.9776.2694.1650.3616.0562.2552.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance730.50.8213
Triple Number Coastal/Long Distance Low850.30.7056
Triple Number Coastal/Long Distance Medium666.30.9005
Triple Number Coastal/Long Distance High608.20.9865
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium827.20.7253
Triple Number Windward/Leeward High740.40.8104
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1771.51196.2917.9776.2694.1650.3616.0562.2552.6
Custom scoring options for United States of America
Scoring OptionTODTOT
TriNum AP Low850.30.7056
TriNum AP Med666.40.9004
TriNum AP High608.20.9865
TriNum W/L Low1136.70.5278
TriNum W/L Med827.20.7253
TriNum W/L Hig740.40.8104
Predom. Upwind763.20.7862
Predom. Reaching664.00.9036
Predom. Downwind702.50.8541
Predom. Up Low1032.30.5812
Predom. Up L/M797.20.7526
Predom. Up Med710.90.8441
Predom. Up M/H673.50.8909
Predom. Up High663.70.9040
Predom. Dn Low1011.60.5931
Predom. Dn L/M754.40.7953
Predom. Dn Med649.80.9234
Predom. Dn M/H589.61.0177
Predom. Dn High556.81.0775
Predom. Rc Low913.00.6572
Predom. Rc L/M699.50.8578
Predom. Rc Med619.00.9693
Predom. Rc M/H578.01.0380
Predom. Rc High557.21.0768
SA/DSPL Upwind17.71SA/DSPL Downwind27.36
Scoring OptionTODTOT
5B W/L Low1265.20.4742
5B W/L L/M943.20.6361
5B W/L Med815.10.7361
5B W/L M/H748.30.8018
5B W/L High723.40.8294
W/L 60-40 Low1276.30.4701
W/L 60-40 L/M958.80.6258
W/L 60-40 Med835.70.7180
W/L 60-40 M/H775.40.7738
W/L 60-40 High756.60.7930
5B AP Low935.00.6417
5B AP L/M747.00.8032
5B AP Med658.20.9116
5B AP M/H613.60.9778
5B AP High595.91.0069
5B SF Bay Low1096.00.5474
5B SF Bay L/M903.70.6639
5B SF Bay Med787.00.7624
5B SF Bay M/H729.00.8230
5B SF Bay High708.60.8467
Chicago-Mac Upwind0.7641
Chicago-Mac All Purpose0.7967
Chicago-Mac Downwind0.8258
BayMac Cove Island1018.30.5892
BayMac Shore1012.00.5929
Harvest Moon579.61.0352
ORC Ref  03440003KWMIssued on 18/03/2025Valid until 31/03/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org
Double HandedClub Certificate2025
SheebaNOR 3950
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassHR 312MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.420Max. Beam3.090Draft1.600Displacement5,018Wetted area22.78IMS L7.635LSM07.663Acc. length9.245Sink (kg/mm) 14.02
VCGD-0.071VCGM-0.049RM Rated (kg·m) 70.8Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeFolding 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0034
EDL0.700ST10.050ST20.170
ST30.170ST40.100ST50.300
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders1Rotating mastNo
P10.800IG12.280ISP12.380MDT10.130MDL10.160MDT20.000MDL20.000TLNo TaperMW0.000GO0.000
E3.500J4.030BAS1.380FSDFoilSFJ0.000SPL4.050WPLTPS4.500BD0.000MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.071Flotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440003KWMIssued on 18/03/2025Valid until 31/03/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org
Double HandedClub Certificate2025
SheebaNOR 3950
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment372-2022090520160.130.691.242.122.8021.5405/09/2022
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment372-2022090520180.040.581.162.493.905.5111.80NoNo 30.6402/09/2022
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment372-20230521142412.2511.1511.706.046.1399%59.0721/05/2023Målt av måler 625
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.
ORC Ref  03440003KWMIssued on 18/03/2025Valid until 31/03/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org