Non Spin/HSFClub Certificate2025
UtlaNOR 10497
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 Angles44.0°44.0°42.0°40.4°38.9°38.3°38.0°38.9°40.2°
Beat VMG2.373.273.994.514.875.035.105.125.04
52°3.725.035.966.566.917.107.187.247.23
60°3.975.316.226.767.087.277.387.467.48
75°4.115.486.396.917.227.467.657.857.95
90°3.995.376.336.907.257.517.758.158.40
110°3.424.765.846.637.127.457.768.358.91
120°3.204.495.586.426.987.347.658.288.93
135°2.733.945.035.916.607.067.398.008.64
150°2.263.354.385.286.046.657.087.688.28
Run VMG1.962.903.804.615.356.036.597.337.89
Gybe Angles147.3°147.3°151.9°158.2°166.3°172.7°177.7°179.5°179.5°
APH ToD:602.4CDL: 8.783APH ToT: 0.9960CertNo:7826
BOAT
ClassDufour 34 StandardDesignerUmbertoFelciBuilderDufourAge dateSeries date01/2003Offset fileDUF34PERF.offData file7826
HULL
Length Overall10.300 mMaximum Beam3.482 mDraft1.927 mDisplacement5,231 kgDLR6.7353IMS DivisionCruiser/RacerDynamic Allowance0.320%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight610 kg(default)Minimum weight480 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail31.8932.69Headsail Luffed30.2930.29Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail9.32Storm Jib8.47Heavy Weather Jib22.85
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.
Non Spin/HSFClub Certificate2025
UtlaNOR 10497
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 VMG1520.71100.5903.2798.3739.6715.4705.4702.5714.8
52°966.8716.3604.1548.7520.8507.3501.6497.4498.1
60°907.4678.6579.0532.6508.7495.2487.9482.4481.4
75°875.3656.9563.1520.9498.3482.5470.9458.5452.9
90°902.4671.0569.0521.5496.8479.3464.3441.5428.7
110°1052.7756.8616.6542.9506.0483.1463.9431.0404.2
120°1126.0801.1644.8560.3516.1490.6470.5434.9403.0
135°1319.4913.8716.4609.4545.7510.0487.3450.3416.6
150°1594.21075.6821.3682.2596.0541.2508.7468.5435.0
Run VMG1840.01242.1947.0780.2672.5597.4545.9491.1456.2
Selected Courses
Windward / Leeward1677.21171.3925.1789.2706.0656.4625.7596.8585.5
All purpose1251.2891.5719.9628.8576.4546.1527.0504.4490.9
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward744.40.8060
All purpose602.40.9960
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance658.80.9107
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.41178.3870.8710.6615.6567.2533.3483.8467.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7414
Downwind "popa"0.7960
70% up, 30% down "Ilhabela"0.7570
30% up, 70% down "Ilhabela-inverso"0.7788
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Predominantly Upwind637.90.9405
Predominantly Downwind632.30.9490
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low805.70.7447
Triple Number AP Medium598.31.0028
Triple Number AP High523.31.1466
Triple Number Windward/Leeward Low1097.80.5465
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Single Number Predominant Upwind664.90.9024
Single Number Predominant Reaching604.00.9934
Single Number Predominant Downwind665.90.9010
Predominant Upwind - Low942.50.6366
Predominant Upwind - Low/Med708.80.8465
Predominant Upwind - Medium613.60.9778
Predominant Upwind - Med/High566.41.0593
Predominant Upwind - High550.71.0895
Predominant Downwind Low1030.70.5821
Predominant Downwind Low/Med735.20.8161
Predominant Downwind Medium605.00.9918
Predominant Downwind Med/High526.51.1397
Predominant Downwind High489.31.2264
Predominant Reaching Low870.80.6890
Predominant Reaching Low/Med649.60.9237
Predominant Reaching Medium558.01.0752
Predominant Reaching Med/High506.01.1858
Predominant Reaching High480.31.2491
SA/DSPL Upwind20.52SA/DSPL Downwind20.52
Scoring OptionTODTOT
5-Band Windward/Leeward Low1237.00.4850
5-Band Windward/Leeward Low/Med881.10.6809
5-Band Windward/Leeward Medium723.20.8297
5-Band Windward/Leeward Med/High632.80.9482
5-Band Windward/Leeward High599.81.0003
Windward/Leeward 60-40 Low1220.80.4915
Windward/Leeward 60-40 Low/Med879.10.6825
Windward/Leeward 60-40 Medium729.80.8222
Windward/Leeward 60-40 Med/High648.10.9258
Windward/Leeward 60-40 High620.90.9663
5-Band AP Low907.40.6613
5-Band AP Low/Med691.90.8672
5-Band AP Medium587.91.0206
5-Band AP Med/High530.51.1309
5-Band AP High506.01.1859
5-Band SF Bay Tour - Low1053.90.5693
5-Band SF Bay Tour - Low/Med838.90.7152
5-Band SF Bay Tour - Medium696.50.8614
5-Band SF Bay Tour - Med/High618.80.9697
5-Band SF Bay Tour - High590.71.0158
Chicago-Mac Upwind0.8714
Chicago-Mac All Purpose0.8723
Chicago-Mac Downwind0.8629
Bayview-Mac Cove Island0.6185
Bayview-Mac Shore0.6260
Harvest Moon Regatta522.81.1477
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance658.80.9107
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.41178.3870.8710.6615.6567.2533.3483.8467.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance658.80.9107
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.41178.3870.8710.6615.6567.2533.3483.8467.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance658.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.41178.3870.8710.6615.6567.2533.3483.8467.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating658.80.9107
FinRating, kevyt tuuli1218.60.8206
FinRating, kova tuuli510.00.9803
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9107
Triple Number Coastal/Long Distance Low0.7447
Triple Number Coastal/Long Distance Medium1.0029
Triple Number Coastal/Long Distance High1.1466
Triple Number Windward/Leeward Low0.5724
Triple Number Windward/Leeward Medium0.8112
Triple Number Windward/Leeward High0.9638
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.41178.3870.8710.6615.6567.2533.3483.8467.4
For information
General Purpose Handicap (GPH)682.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance658.80.9107
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.41178.3870.8710.6615.6567.2533.3483.8467.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance658.80.9107
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.41178.3870.8710.6615.6567.2533.3483.8467.4
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance658.80.9107
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.41178.3870.8710.6615.6567.2533.3483.8467.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low805.7
Triple Number Coastal/Long Distance Medium598.3
Triple Number Coastal/Long Distance High523.3
Triple Number Windward/Leeward Low1048.2
Triple Number Windward/Leeward Medium739.6
Triple Number Windward/Leeward High622.5
Predominantly Upwind637.9
Predominantly Downwind632.3
Predominantly Reaching595.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance658.80.9107
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.41178.3870.8710.6615.6567.2533.3483.8467.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7447
Triple Number Coastal/Long Distance Medium1.0029
Triple Number Coastal/Long Distance High1.1466
Triple Number Windward/Leeward Low0.5724
Triple Number Windward/Leeward Medium0.8112
Triple Number Windward/Leeward High0.9638
Coastal/Long Distance0.9107
Predominantly Upwind0.9405
Predominantly Downwind0.9490
For information
General Purpose Handicap (GPH)682.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9960
Distanseseilas Trippeltall svak vind0.7447
Distanseseilas Trippeltall mellomvind1.0029
Distanseseilas Trippeltall sterk vind1.1466
Pølsebane Trippeltall svak vind0.5724
Pølsebane Trippeltall mellomvind0.8112
Pølsebane Trippeltall sterk vind0.9638
Motvind Singeltall0.9405
Medvind Singeltall0.9490
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Coastal/Long Distance658.80.9107
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind637.90.9405
Predominantly Downwind632.30.9490
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore588.91.0189
Cape Doctor Coastal495.01.2122
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7447
Triple Number Coastal/Long Distance Medium1.0029
Triple Number Coastal/Long Distance High1.1466
Triple Number Windward/Leeward Low0.5724
Triple Number Windward/Leeward Medium0.8112
Triple Number Windward/Leeward High0.9638
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7447
Triple Number Coastal/Long Distance Medium1.0029
Triple Number Coastal/Long Distance High1.1466
Triple Number Windward/Leeward Low0.5724
Triple Number Windward/Leeward Medium0.8112
Triple Number Windward/Leeward High0.9638
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance658.80.9107
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Predominantly Upwind637.90.9405
Predominantly Downwind632.30.9490
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.41178.3870.8710.6615.6567.2533.3483.8467.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance658.80.9107
Triple Number Coastal/Long Distance Low805.70.7447
Triple Number Coastal/Long Distance Medium598.31.0029
Triple Number Coastal/Long Distance High523.31.1466
Triple Number Windward/Leeward Low1048.20.5724
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.41178.3870.8710.6615.6567.2533.3483.8467.4
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low805.70.7447
Triple Number AP Medium598.31.0028
Triple Number AP High523.31.1466
Triple Number Windward/Leeward Low1097.80.5465
Triple Number Windward/Leeward Medium739.60.8112
Triple Number Windward/Leeward High622.50.9638
Single Number Predominant Upwind664.90.9024
Single Number Predominant Reaching604.00.9934
Single Number Predominant Downwind665.90.9010
Predominant Upwind - Low942.50.6366
Predominant Upwind - Low/Med708.80.8465
Predominant Upwind - Medium613.60.9778
Predominant Upwind - Med/High566.41.0593
Predominant Upwind - High550.71.0895
Predominant Downwind Low1030.70.5821
Predominant Downwind Low/Med735.20.8161
Predominant Downwind Medium605.00.9918
Predominant Downwind Med/High526.51.1397
Predominant Downwind High489.31.2264
Predominant Reaching Low870.80.6890
Predominant Reaching Low/Med649.60.9237
Predominant Reaching Medium558.01.0752
Predominant Reaching Med/High506.01.1858
Predominant Reaching High480.31.2491
SA/DSPL Upwind20.52SA/DSPL Downwind20.52
Scoring OptionTODTOT
5-Band Windward/Leeward Low1237.00.4850
5-Band Windward/Leeward Low/Med881.10.6809
5-Band Windward/Leeward Medium723.20.8297
5-Band Windward/Leeward Med/High632.80.9482
5-Band Windward/Leeward High599.81.0003
Windward/Leeward 60-40 Low1220.80.4915
Windward/Leeward 60-40 Low/Med879.10.6825
Windward/Leeward 60-40 Medium729.80.8222
Windward/Leeward 60-40 Med/High648.10.9258
Windward/Leeward 60-40 High620.90.9663
5-Band AP Low907.40.6613
5-Band AP Low/Med691.90.8672
5-Band AP Medium587.91.0206
5-Band AP Med/High530.51.1309
5-Band AP High506.01.1859
5-Band SF Bay Tour - Low1053.90.5693
5-Band SF Bay Tour - Low/Med838.90.7152
5-Band SF Bay Tour - Medium696.50.8614
5-Band SF Bay Tour - Med/High618.80.9697
5-Band SF Bay Tour - High590.71.0158
Chicago-Mac Upwind0.8714
Chicago-Mac All Purpose0.8723
Chicago-Mac Downwind0.8629
Bayview-Mac Cove Island0.6185
Bayview-Mac Shore0.6260
Harvest Moon Regatta522.81.1477
Non Spin/HSFClub Certificate2025
UtlaNOR 10497
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDufour 34 StandardMeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.300Max. Beam3.482Draft1.927Displacement5,231Wetted area23.67IMS L9.413LSM09.191Acc. length10.300Sink (kg/mm) 18.35
VCGD0.030VCGM0.061RM Rated (kg·m) 118.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight610Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0031
EDL2.170ST10.048ST20.170
ST30.170ST40.098ST50.285
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P11.830IG12.940ISP13.040MDT10.120MDL10.180MDT20.120MDL20.180TL0.720MW0.180GO0.200
E4.500J3.750BAS1.680FSDFoilSFJ0.000SPL3.880WPLTPS0.000BD0.000MWT118.50MCG5.030
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.030Flotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Non Spin/HSFClub Certificate2025
UtlaNOR 10497
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment330-2017050310160.160.961.752.923.7831.8903/05/2017Aktiv
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment398-2023050513080.060.571.132.363.735.1712.27NoNo 30.2905/05/2023466-2014032615120.070.601.112.113.094.0312.14NoNo 25.3026/03/2014Genoa 3
CRUISER/RACER REQUIREMENTS*
Accommodation length10.3 mTable area0.44 m²Headroom1.72 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity86 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity56 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.