Club
Certificate
2023

Boat

Blåtann

NOR 3567

Norges Seilforbund
Sognsveien 73
0854 OSLO
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles41.7°40.0°38.7°38.2°38.2°38.1°38.5°
Beat VMG3.554.214.574.724.794.844.84
52°5.316.106.496.646.726.776.82
60°5.546.286.646.816.906.967.02
75°5.686.396.777.007.147.237.34
90°5.576.346.787.067.277.447.67
110°5.346.326.857.217.507.748.10
120°5.146.156.747.147.487.808.48
135°4.605.646.396.867.227.588.38
150°3.884.935.816.466.897.237.92
Run VMG3.364.275.065.756.356.797.44
Gybe Angles145.1°151.1°154.6°162.8°175.4°179.0°179.0°

APH: 592.6

CDL: 7.897

GPH: 660.1

CertNo: 4362

BOAT
ClassX-102 Mk IDesignerNiels JeppesenBuilderNordsø VærftAge date01/1981Series date01/1981Offset fileH099.BOFData file4362
HULL
Length Overall9.990 mMaximum Beam3.346 mDraft1.888 mDisplacement3,846 kgDLR8.2260IMS DivisionCruiser/RacerDynamic Allowance0.010%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight480 kgMinimum weight360 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail34.3335.12Headsail Luffed29.5629.56Headsail FlyingSymmetric60.0060.00Asymmetric
STORM SAIL AREAS (m²)
Trysail9.79Storm Jib6.91Heavy Weather Jib18.64
SAIL LIMITS
Headsails5  Spinnakers4
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  03440002JBVIssued on 26/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Blåtann

NOR 3567

Norges Seilforbund
Sognsveien 73
0854 OSLO
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1015.3855.7786.9763.0751.0744.0743.3
52°678.3590.1555.1542.2535.5531.5527.8
60°650.1573.7542.1528.6521.9517.4512.5
75°634.1563.5531.8514.6504.3498.0490.2
90°646.9567.5531.3510.2494.9483.6469.5
110°674.1569.9525.6499.5480.1464.8444.2
120°700.0585.0533.9504.5481.5461.4424.6
135°782.7638.3563.0524.6498.4475.2429.6
150°928.4730.8619.7557.0522.4497.7454.6
Run VMG1072.0843.3711.7625.6566.7530.0483.6
Selected Courses
Windward / Leeward1043.7849.5749.3694.3658.8637.0613.4
All purpose806.2673.3608.8574.9553.9539.4519.4
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward721.40.8317
All purpose592.61.0126
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance642.90.9332
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1046.5802.5680.6612.3574.4544.7496.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7422
Downwind "popa"0.8690
70% up, 30% down "Ilhabela"0.7761
30% up, 70% down "Ilhabela-inverso"0.8266
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Predominantly Upwind635.70.9438
Predominantly Downwind604.10.9932
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low739.70.8111
Triple Number All Purpose Medium589.21.0184
Triple Number All Purpose High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Predominantly Upwind635.70.9438
Predominantly Downwind604.10.9932
Predominantly Upwind Low805.30.7451
Predominantly Upwind Medium654.40.9169
Predominantly Upwind High624.90.9602
Predominantly Downwind Low824.20.7280
Predominantly Downwind Medium601.50.9975
Predominantly Downwind High504.51.1893
Chicago-Mac Upwind0.9290
Chicago-Mac All Purpose0.9504
Chicago-Mac Downwind0.9761
Bayview-Mac Cove Island0.8952
Bayview-Mac Shore0.9048
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching565.71.0606
Predominantly Reaching Low677.10.8861
Predominantly Reaching Medium561.21.0692
Predominantly Reaching High503.01.1927
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1028.70.5832
5-Band Low / Medium870.60.6892
5-Band Medium705.60.8504
5-Band Medium / High641.50.9353
5-Band High617.50.9717
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance642.90.9332
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1046.5802.5680.6612.3574.4544.7496.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance642.90.9332
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1046.5802.5680.6612.3574.4544.7496.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance642.9
Triple Number Coastal/Long Distance Low739.7
Triple Number Coastal/Long Distance Medium589.2
Triple Number Coastal/Long Distance High535.6
Triple Number Windward/Leeward Low946.7
Triple Number Windward/Leeward Medium716.7
Triple Number Windward/Leeward High633.6
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1046.5802.5680.6612.3574.4544.7496.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance642.90.9332
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1046.5802.5680.6612.3574.4544.7496.3
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)642.90.9332
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1046.5802.5680.6612.3574.4544.7496.3
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8111
Triple Number Coastal/Long Distance Medium1.0184
Triple Number Coastal/Long Distance High1.1203
Triple Number Windward/Leeward Low0.6338
Triple Number Windward/Leeward Medium0.8372
Triple Number Windward/Leeward High0.9469
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1046.5802.5680.6612.3574.4544.7496.3
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance642.90.9332
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1046.5802.5680.6612.3574.4544.7496.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance642.90.9332
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1046.5802.5680.6612.3574.4544.7496.3
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1046.5802.5680.6612.3574.4544.7496.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low739.7
Triple Number Coastal/Long Distance Medium589.2
Triple Number Coastal/Long Distance High535.6
Triple Number Windward/Leeward Low946.7
Triple Number Windward/Leeward Medium716.7
Triple Number Windward/Leeward High633.6
Predominantly Upwind635.7
Predominantly Downwind604.1
Predominantly Reaching579.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance642.90.9332
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1046.5802.5680.6612.3574.4544.7496.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8111
Triple Number Coastal/Long Distance Medium1.0184
Triple Number Coastal/Long Distance High1.1203
Triple Number Windward/Leeward Low0.6338
Triple Number Windward/Leeward Medium0.8372
Triple Number Windward/Leeward High0.9469
Coastal/Long Distance0.9332
Predominantly Upwind0.9438
Predominantly Downwind0.9932
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8111
Tretall Distanseseilas Mellomvind1.0184
Tretall Distanseseilas Mye vind1.1203
Tretall Pølsebane Lite vind0.6338
Tretall Pølsebane Mellomvind0.8372
Tretall Pølsebane Mye vind0.9469
Distanseseilas ett tall (OSN 8-16kn)0.9332
Distanseseilas ett tall (APH 6-20kn)1.0126
Enkeltall Motvind0.9438
Enkeltall Medvind0.9932
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Coastal/Long Distance642.90.9332
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind635.70.9438
Predominantly Downwind604.10.9932
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore620.50.9670
Cape Doctor Coastal525.41.1419
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8111
Triple Number Coastal/Long Distance Medium1.0184
Triple Number Coastal/Long Distance High1.1203
Triple Number Windward/Leeward Low0.6338
Triple Number Windward/Leeward Medium0.8372
Triple Number Windward/Leeward High0.9469
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8111
Triple Number Coastal/Long Distance Medium1.0184
Triple Number Coastal/Long Distance High1.1203
Triple Number Windward/Leeward Low0.6338
Triple Number Windward/Leeward Medium0.8372
Triple Number Windward/Leeward High0.9469
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance642.90.9332
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Predominantly Upwind635.70.9438
Predominantly Downwind604.10.9932
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1046.5802.5680.6612.3574.4544.7496.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance642.90.9332
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium589.21.0184
Triple Number Coastal/Long Distance High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1046.5802.5680.6612.3574.4544.7496.3
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low739.70.8111
Triple Number All Purpose Medium589.21.0184
Triple Number All Purpose High535.61.1203
Triple Number Windward/Leeward Low946.70.6338
Triple Number Windward/Leeward Medium716.70.8372
Triple Number Windward/Leeward High633.60.9469
Predominantly Upwind635.70.9438
Predominantly Downwind604.10.9932
Predominantly Upwind Low805.30.7451
Predominantly Upwind Medium654.40.9169
Predominantly Upwind High624.90.9602
Predominantly Downwind Low824.20.7280
Predominantly Downwind Medium601.50.9975
Predominantly Downwind High504.51.1893
Chicago-Mac Upwind0.9290
Chicago-Mac All Purpose0.9504
Chicago-Mac Downwind0.9761
Bayview-Mac Cove Island0.8952
Bayview-Mac Shore0.9048
Harvest Moon Regatta519.81.1544
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy624.10.9613
San Francisco Bay Medium709.40.8458
Predominantly Reaching565.71.0606
Predominantly Reaching Low677.10.8861
Predominantly Reaching Medium561.21.0692
Predominantly Reaching High503.01.1927
Windward/Leeward 60-40 Low944.40.6353
Windward/Leeward 60-40 Medium736.80.8143
Windward/Leeward 60-40 High671.70.8933
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1028.70.5832
5-Band Low / Medium870.60.6892
5-Band Medium705.60.8504
5-Band Medium / High641.50.9353
5-Band High617.50.9717
ORC Ref  03440002JBVIssued on 26/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Blåtann

NOR 3567

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassX-102 Mk IMeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.990Max. Beam3.346Draft1.888Displacement3,846Wetted area19.79IMS L8.133LSM07.761Acc. length9.990Sink (kg/mm) 14.24
VCGD0.000VCGM0.063RM Rated (kg·m) 78.0Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0057
PSD0.030PHD0.080PHL0.160
PSA16.0°ESL0.670
ST10.030ST20.100ST30.100
ST40.100ST50.100
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays2Spreaders2Rotating mastNo
P12.830IG11.750ISP11.750MDT10.110MDL10.150MDT20.080MDL20.080TL2.780MW0.150GO0.150
E4.360J3.380BAS1.650FSD0.030SFJ0.000SPL3.420WPLTPS0.000BDMWT109.00MCG4.300
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.000Flotation Date01/01/2015MeasurerComment
SFFP0.637FFMFF1.021LCFcl5.175SG1.0000
SAFP8.777FAMFA0.954LCFsh5.426HBI0.998
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440002JBVIssued on 26/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Blåtann

NOR 3567

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment1-2021042613340.000.000.000.000.0034.3326/04/2021FORENKLET
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment1-2021042613340.000.000.000.000.005.0211.57NoNo 29.5626/04/2021FORENKLET
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment1-20210426133511.6311.6311.636.200.0060.0026/04/2021FORENKLET
ORC Ref  03440002JBVIssued on 26/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org