Club
Certificate
Non Spinnaker
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°38.7°
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°5.576.356.777.067.287.457.67
110°4.985.956.576.967.277.568.10
120°4.695.706.406.837.167.478.11
135°4.115.145.966.526.907.217.83
150°3.494.515.366.076.576.937.52
Run VMG3.023.914.715.446.086.557.19
Gybe Angles146.6°153.8°162.2°170.0°177.2°179.0°179.3°

APH: 607.9

CDL: 7.896

GPH: 680.3

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 Allowance0.090%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 FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail9.79Storm Jib6.91Heavy Weather Jib18.64
SAIL LIMITS
Headsails5  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  03440002JD3Issued on 26/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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 VMG1014.9855.4786.9763.0751.1744.1743.7
52°678.1589.9555.1542.2535.6531.5527.9
60°649.9573.6542.1528.6521.9517.4512.6
75°633.8563.4531.7514.5504.3498.0490.3
90°646.6567.4531.6510.1494.8483.5469.5
110°723.5604.7548.0517.4495.0476.0444.3
120°767.8631.6562.6527.1502.8481.8444.0
135°875.0700.6604.4552.2521.9499.4459.5
150°1032.7799.1671.8593.2547.7519.7478.7
Run VMG1192.5919.9764.4662.0592.4549.2500.4
Selected Courses
Windward / Leeward1103.7887.6775.7712.5671.8646.7622.0
All purpose845.7699.4626.7587.8563.9548.0527.5
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward743.00.8076
All purpose607.90.9871
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance661.50.9071
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1112.6838.7703.2626.6585.2554.1505.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7422
Downwind "popa"0.8107
70% up, 30% down "Ilhabela"0.7615
30% up, 70% down "Ilhabela-inverso"0.7888
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Predominantly Upwind644.00.9317
Predominantly Downwind631.10.9507
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low772.60.7766
Triple Number All Purpose Medium604.10.9932
Triple Number All Purpose High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Predominantly Upwind644.00.9317
Predominantly Downwind631.10.9507
Predominantly Upwind Low822.60.7294
Predominantly Upwind Medium656.50.9139
Predominantly Upwind High626.40.9579
Predominantly Downwind Low887.40.6761
Predominantly Downwind Medium633.80.9466
Predominantly Downwind High522.41.1484
Chicago-Mac Upwind0.9168
Chicago-Mac All Purpose0.9237
Chicago-Mac Downwind0.9324
Bayview-Mac Cove Island0.8693
Bayview-Mac Shore0.8847
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching579.31.0358
Predominantly Reaching Low708.20.8472
Predominantly Reaching Medium577.01.0399
Predominantly Reaching High513.01.1696
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1087.10.5519
5-Band Low / Medium910.80.6588
5-Band Medium725.20.8273
5-Band Medium / High652.30.9198
5-Band High626.30.9580
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance661.50.9071
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1112.6838.7703.2626.6585.2554.1505.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance661.50.9071
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1112.6838.7703.2626.6585.2554.1505.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance661.5
Triple Number Coastal/Long Distance Low772.6
Triple Number Coastal/Long Distance Medium604.1
Triple Number Coastal/Long Distance High544.3
Triple Number Windward/Leeward Low995.7
Triple Number Windward/Leeward Medium738.0
Triple Number Windward/Leeward High643.7
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1112.6838.7703.2626.6585.2554.1505.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance661.50.9071
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1112.6838.7703.2626.6585.2554.1505.3
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)661.50.9071
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1112.6838.7703.2626.6585.2554.1505.3
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7766
Triple Number Coastal/Long Distance Medium0.9932
Triple Number Coastal/Long Distance High1.1024
Triple Number Windward/Leeward Low0.6026
Triple Number Windward/Leeward Medium0.8130
Triple Number Windward/Leeward High0.9321
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1112.6838.7703.2626.6585.2554.1505.3
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance661.50.9071
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1112.6838.7703.2626.6585.2554.1505.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance661.50.9071
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1112.6838.7703.2626.6585.2554.1505.3
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1112.6838.7703.2626.6585.2554.1505.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low772.6
Triple Number Coastal/Long Distance Medium604.1
Triple Number Coastal/Long Distance High544.3
Triple Number Windward/Leeward Low995.7
Triple Number Windward/Leeward Medium738.0
Triple Number Windward/Leeward High643.7
Predominantly Upwind644.0
Predominantly Downwind631.1
Predominantly Reaching598.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance661.50.9071
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1112.6838.7703.2626.6585.2554.1505.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7766
Triple Number Coastal/Long Distance Medium0.9932
Triple Number Coastal/Long Distance High1.1024
Triple Number Windward/Leeward Low0.6026
Triple Number Windward/Leeward Medium0.8130
Triple Number Windward/Leeward High0.9321
Coastal/Long Distance0.9071
Predominantly Upwind0.9317
Predominantly Downwind0.9507
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7766
Tretall Distanseseilas Mellomvind0.9932
Tretall Distanseseilas Mye vind1.1024
Tretall Pølsebane Lite vind0.6026
Tretall Pølsebane Mellomvind0.8130
Tretall Pølsebane Mye vind0.9321
Distanseseilas ett tall (OSN 8-16kn)0.9071
Distanseseilas ett tall (APH 6-20kn)0.9871
Enkeltall Motvind0.9317
Enkeltall Medvind0.9507
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Coastal/Long Distance661.50.9071
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind644.00.9317
Predominantly Downwind631.10.9507
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore629.40.9532
Cape Doctor Coastal533.61.1244
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7766
Triple Number Coastal/Long Distance Medium0.9932
Triple Number Coastal/Long Distance High1.1024
Triple Number Windward/Leeward Low0.6026
Triple Number Windward/Leeward Medium0.8130
Triple Number Windward/Leeward High0.9321
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7766
Triple Number Coastal/Long Distance Medium0.9932
Triple Number Coastal/Long Distance High1.1024
Triple Number Windward/Leeward Low0.6026
Triple Number Windward/Leeward Medium0.8130
Triple Number Windward/Leeward High0.9321
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance661.50.9071
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Predominantly Upwind644.00.9317
Predominantly Downwind631.10.9507
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1112.6838.7703.2626.6585.2554.1505.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance661.50.9071
Triple Number Coastal/Long Distance Low772.60.7766
Triple Number Coastal/Long Distance Medium604.10.9932
Triple Number Coastal/Long Distance High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1112.6838.7703.2626.6585.2554.1505.3
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low772.60.7766
Triple Number All Purpose Medium604.10.9932
Triple Number All Purpose High544.31.1024
Triple Number Windward/Leeward Low995.70.6026
Triple Number Windward/Leeward Medium738.00.8130
Triple Number Windward/Leeward High643.70.9321
Predominantly Upwind644.00.9317
Predominantly Downwind631.10.9507
Predominantly Upwind Low822.60.7294
Predominantly Upwind Medium656.50.9139
Predominantly Upwind High626.40.9579
Predominantly Downwind Low887.40.6761
Predominantly Downwind Medium633.80.9466
Predominantly Downwind High522.41.1484
Chicago-Mac Upwind0.9168
Chicago-Mac All Purpose0.9237
Chicago-Mac Downwind0.9324
Bayview-Mac Cove Island0.8693
Bayview-Mac Shore0.8847
Harvest Moon Regatta532.81.1260
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy635.20.9445
San Francisco Bay Medium731.00.8207
Predominantly Reaching579.31.0358
Predominantly Reaching Low708.20.8472
Predominantly Reaching Medium577.01.0399
Predominantly Reaching High513.01.1696
Windward/Leeward 60-40 Low983.60.6100
Windward/Leeward 60-40 Medium750.90.7991
Windward/Leeward 60-40 High678.40.8844
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1087.10.5519
5-Band Low / Medium910.80.6588
5-Band Medium725.20.8273
5-Band Medium / High652.30.9198
5-Band High626.30.9580
ORC Ref  03440002JD3Issued on 26/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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 L8.132LSM07.761Acc. 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  03440002JD3Issued on 26/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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
ORC Ref  03440002JD3Issued on 26/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org