Non Spin/HSFClub 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 Angles43.9°43.9°41.9°40.8°40.1°40.1°39.7°40.0°41.2°
Beat VMG2.062.833.433.874.164.304.374.394.32
52°3.234.345.135.676.006.166.236.286.27
60°3.424.565.355.866.166.336.406.466.47
75°3.514.695.506.026.316.506.636.746.80
90°3.424.595.436.006.336.556.736.977.11
110°3.004.165.095.816.276.566.807.197.50
120°2.833.964.915.656.166.486.747.187.59
135°2.453.534.485.245.856.266.547.017.46
150°2.063.043.964.735.395.926.296.787.21
Run VMG1.782.633.444.174.825.405.896.516.94
Gybe Angles149.3°149.3°154.1°162.7°170.3°174.5°177.7°179.5°179.5°
APH ToD:688.9CDL: 6.826APH ToT: 0.8709CertNo: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 Allowance0.670%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.380m
CREW
Maximum weight471 kg(default)Minimum weight341 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail21.5421.82Headsail Luffed30.6430.64Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail6.62Storm Jib7.54Heavy Weather Jib20.36
SAIL LIMITS
Headsails5
✱ Zero set flying
Spinnakers0
✱ 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.
ORC Ref  03440003L29Issued on 18/03/2025Valid until 31/03/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org
Non Spin/HSFClub 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 VMG1751.51272.51049.1931.3865.5837.3824.2819.9833.2
52°1115.9830.2702.0634.7600.3584.1577.7573.7574.4
60°1051.8788.6673.1614.1584.5569.1562.2557.2556.1
75°1026.5768.1654.6598.5570.5553.8543.2534.1529.2
90°1052.1783.8663.5600.0568.6549.3534.9516.2506.2
110°1198.3865.6707.2619.3574.2548.7529.7500.7479.8
120°1271.1908.3733.9637.2584.3555.2534.5501.1474.6
135°1468.11020.6803.9687.6615.5575.0550.2513.5482.8
150°1750.71185.6909.4760.8668.5608.1572.5531.0499.1
Run VMG2023.41369.01046.1863.8747.5667.1611.5553.4518.9
Selected Courses
Windward / Leeward1883.81320.71047.6897.6806.5752.2717.9686.6676.0
All purpose1418.71014.8822.1718.4659.0625.2604.6582.4570.9
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward848.80.7069
All purpose688.90.8709
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance751.70.7982
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2023.41325.6987.1809.7704.2649.4611.4558.2544.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6364
Downwind "popa"0.7169
70% up, 30% down "Ilhabela"0.6586
30% up, 70% down "Ilhabela-inverso"0.6907
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Predominantly Upwind735.00.8163
Predominantly Downwind714.80.8394
Custom scoring options for Canada
Scoring OptionTODTOT
TriNum AP Low918.50.6533
TriNum AP Med684.00.8772
TriNum AP High601.40.9976
TriNum W/L Low1239.50.4841
TriNum W/L Med843.40.7114
TriNum W/L Hig714.70.8395
Predom. Upwind765.80.7835
Predom. Reaching690.50.8689
Predom. Downwind752.40.7974
Predom. Up Low1081.20.5550
Predom. Up L/M816.10.7352
Predom. Up Med707.30.8484
Predom. Up M/H653.80.9177
Predom. Up High637.50.9411
Predom. Dn Low1156.90.5186
Predom. Dn L/M828.90.7239
Predom. Dn Med684.10.8771
Predom. Dn M/H598.21.0031
Predom. Dn High560.01.0714
Predom. Rc Low993.40.6040
Predom. Rc L/M742.50.8081
Predom. Rc Med637.30.9415
Predom. Rc M/H579.61.0351
Predom. Rc High554.71.0817
SA/DSPL Upwind17.71SA/DSPL Downwind17.71
Scoring OptionTODTOT
5B W/L Low1394.10.4304
5B W/L L/M999.30.6004
5B W/L Med825.30.7270
5B W/L M/H725.90.8266
5B W/L High690.20.8693
W/L 60-40 Low1382.60.4340
W/L 60-40 L/M1002.10.5987
W/L 60-40 Med837.00.7169
W/L 60-40 M/H746.50.8037
W/L 60-40 High716.70.8371
5B AP Low1031.00.5820
5B AP L/M789.80.7596
5B AP Med672.30.8925
5B AP M/H608.90.9854
5B AP High584.31.0269
5B SF Bay Low1193.30.5028
5B SF Bay L/M954.90.6283
5B SF Bay Med797.40.7524
5B SF Bay M/H711.30.8435
5B SF Bay High681.20.8808
Chicago-Mac Upwind0.7566
Chicago-Mac All Purpose0.7647
Chicago-Mac Downwind0.7645
BayMac Cove Island1100.40.5453
BayMac Shore1088.80.5511
Harvest Moon596.21.0063
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance751.70.7982
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2023.41325.6987.1809.7704.2649.4611.4558.2544.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance751.70.7982
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2023.41325.6987.1809.7704.2649.4611.4558.2544.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance751.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2023.41325.6987.1809.7704.2649.4611.4558.2544.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating751.70.7982
FinRating, kevyt tuuli1374.10.7277
FinRating, kova tuuli589.20.8486
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7982
Triple Number Coastal/Long Distance Low0.6533
Triple Number Coastal/Long Distance Medium0.8773
Triple Number Coastal/Long Distance High0.9976
Triple Number Windward/Leeward Low0.5067
Triple Number Windward/Leeward Medium0.7114
Triple Number Windward/Leeward High0.8395
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2023.41325.6987.1809.7704.2649.4611.4558.2544.0
For information
General Purpose Handicap (GPH)780.0
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance751.70.7982
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2023.41325.6987.1809.7704.2649.4611.4558.2544.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance751.70.7982
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2023.41325.6987.1809.7704.2649.4611.4558.2544.0
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance751.70.7982
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2023.41325.6987.1809.7704.2649.4611.4558.2544.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low918.4
Triple Number Coastal/Long Distance Medium683.9
Triple Number Coastal/Long Distance High601.4
Triple Number Windward/Leeward Low1184.1
Triple Number Windward/Leeward Medium843.4
Triple Number Windward/Leeward High714.7
Predominantly Upwind735.0
Predominantly Downwind714.8
Predominantly Reaching678.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance751.70.7982
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2023.41325.6987.1809.7704.2649.4611.4558.2544.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6533
Triple Number Coastal/Long Distance Medium0.8773
Triple Number Coastal/Long Distance High0.9976
Triple Number Windward/Leeward Low0.5067
Triple Number Windward/Leeward Medium0.7114
Triple Number Windward/Leeward High0.8395
Coastal/Long Distance0.7982
Predominantly Upwind0.8163
Predominantly Downwind0.8394
For information
General Purpose Handicap (GPH)780.0
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8709
Distanseseilas Trippeltall svak vind0.6533
Distanseseilas Trippeltall mellomvind0.8773
Distanseseilas Trippeltall sterk vind0.9976
Pølsebane Trippeltall svak vind0.5067
Pølsebane Trippeltall mellomvind0.7114
Pølsebane Trippeltall sterk vind0.8395
Motvind Singeltall0.8163
Medvind Singeltall0.8394
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Coastal/Long Distance751.70.7982
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind735.00.8163
Predominantly Downwind714.80.8394
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore679.20.8834
Cape Doctor Coastal574.41.0446
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6533
Triple Number Coastal/Long Distance Medium0.8773
Triple Number Coastal/Long Distance High0.9976
Triple Number Windward/Leeward Low0.5067
Triple Number Windward/Leeward Medium0.7114
Triple Number Windward/Leeward High0.8395
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6533
Triple Number Coastal/Long Distance Medium0.8773
Triple Number Coastal/Long Distance High0.9976
Triple Number Windward/Leeward Low0.5067
Triple Number Windward/Leeward Medium0.7114
Triple Number Windward/Leeward High0.8395
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance751.70.7982
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Predominantly Upwind735.00.8163
Predominantly Downwind714.80.8394
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2023.41325.6987.1809.7704.2649.4611.4558.2544.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance751.70.7982
Triple Number Coastal/Long Distance Low918.40.6533
Triple Number Coastal/Long Distance Medium683.90.8773
Triple Number Coastal/Long Distance High601.40.9976
Triple Number Windward/Leeward Low1184.10.5067
Triple Number Windward/Leeward Medium843.40.7114
Triple Number Windward/Leeward High714.70.8395
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2023.41325.6987.1809.7704.2649.4611.4558.2544.0
Custom scoring options for United States of America
Scoring OptionTODTOT
TriNum AP Low918.50.6533
TriNum AP Med684.00.8772
TriNum AP High601.40.9976
TriNum W/L Low1239.50.4841
TriNum W/L Med843.40.7114
TriNum W/L Hig714.70.8395
Predom. Upwind765.80.7835
Predom. Reaching690.50.8689
Predom. Downwind752.40.7974
Predom. Up Low1081.20.5550
Predom. Up L/M816.10.7352
Predom. Up Med707.30.8484
Predom. Up M/H653.80.9177
Predom. Up High637.50.9411
Predom. Dn Low1156.90.5186
Predom. Dn L/M828.90.7239
Predom. Dn Med684.10.8771
Predom. Dn M/H598.21.0031
Predom. Dn High560.01.0714
Predom. Rc Low993.40.6040
Predom. Rc L/M742.50.8081
Predom. Rc Med637.30.9415
Predom. Rc M/H579.61.0351
Predom. Rc High554.71.0817
SA/DSPL Upwind17.71SA/DSPL Downwind17.71
Scoring OptionTODTOT
5B W/L Low1394.10.4304
5B W/L L/M999.30.6004
5B W/L Med825.30.7270
5B W/L M/H725.90.8266
5B W/L High690.20.8693
W/L 60-40 Low1382.60.4340
W/L 60-40 L/M1002.10.5987
W/L 60-40 Med837.00.7169
W/L 60-40 M/H746.50.8037
W/L 60-40 High716.70.8371
5B AP Low1031.00.5820
5B AP L/M789.80.7596
5B AP Med672.30.8925
5B AP M/H608.90.9854
5B AP High584.31.0269
5B SF Bay Low1193.30.5028
5B SF Bay L/M954.90.6283
5B SF Bay Med797.40.7524
5B SF Bay M/H711.30.8435
5B SF Bay High681.20.8808
Chicago-Mac Upwind0.7566
Chicago-Mac All Purpose0.7647
Chicago-Mac Downwind0.7645
BayMac Cove Island1100.40.5453
BayMac Shore1088.80.5511
Harvest Moon596.21.0063
ORC Ref  03440003L29Issued on 18/03/2025Valid until 31/03/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org
Non Spin/HSFClub 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 L7.697LSM07.663Acc. length9.245Sink (kg/mm) 14.02
VCGD-0.071VCGM-0.049RM Rated (kg·m) 70.8Limit of positive stability(°) N/AStability IndexN/ADefault crew weight471Declared 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  03440003L29Issued on 18/03/2025Valid until 31/03/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org
Non Spin/HSFClub 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
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  03440003L29Issued on 18/03/2025Valid until 31/03/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org