Club
Certificate
2024

Boat

TRUE BLUE

FIN-5347

Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles42.5°40.2°38.4°37.5°37.4°37.3°37.6°39.4°
Beat VMG3.313.984.394.574.664.714.754.65
52°4.995.796.206.396.486.546.616.60
60°5.225.986.356.556.656.726.816.83
75°5.356.116.486.736.897.007.157.22
90°5.366.206.606.817.027.227.507.69
110°5.316.236.707.057.357.597.988.27
120°5.116.096.627.007.367.708.479.17
135°4.575.606.306.737.117.498.4310.40
150°3.834.875.756.366.767.117.879.09
Run VMG3.324.225.005.686.246.657.338.08
Gybe Angles144.7°150.3°154.1°163.1°177.2°179.0°179.2°177.7°
APH ToD:609.4CDL: 7.393APH ToT: 0.9845CertNo:
BOAT
ClassFINNFLYER 31 LFDesignerEIVIND STILLBuilderPOLAR YACHTAge date06/1986Series date06/1986Offset fileFIN5347.offData fileFIN5347
HULL
Length Overall9.380 mMaximum Beam3.240 mDraft1.719 mDisplacement2,582 kgDLR6.7298IMS DivisionPerformanceDynamic Allowance0.080%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.405m
CREW
Maximum weight425 kg(declared)Minimum weight295 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail29.2429.91Headsail Luffed16.0916.09Headsail FlyingSymmetric49.6149.61Asymmetric
STORM SAIL AREAS (m²)
Trysail8.59Storm Jib5.28Heavy Weather Jib14.25
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
Modded hull 2021
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.

Club
Certificate
2024

Boat

TRUE BLUE

FIN-5347

Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1088.6905.1820.1787.3772.6763.9758.0774.3
52°722.1621.3580.7563.6555.8550.6544.8545.1
60°689.7602.0566.9550.0541.4535.7528.7527.2
75°672.8589.5555.2535.3522.2513.9503.3498.7
90°672.0581.1545.7528.3512.8498.6480.0468.4
110°678.0577.6537.0510.4490.0474.2450.9435.4
120°703.9591.6543.9514.0489.4467.4425.0392.6
135°787.8642.8571.3534.8506.5480.8426.8346.3
150°940.2739.0626.3566.2532.8506.3457.7396.2
Run VMG1085.6853.1719.6633.7576.7541.5491.3445.3
Selected Courses
Windward / Leeward1087.1879.1769.8710.5674.6652.7624.7609.8
All purpose837.2694.9626.6590.9568.8552.9528.6509.0
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward740.80.8099
All purpose609.40.9845
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance661.10.9075
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1087.0829.0699.6628.6589.7558.3505.1485.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7124
Downwind "popa"0.8569
70% up, 30% down "Ilhabela"0.7504
30% up, 70% down "Ilhabela-inverso"0.8077
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Predominantly Upwind657.70.9122
Predominantly Downwind617.40.9719
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low766.10.7832
Triple Number AP Medium606.00.9901
Triple Number AP High547.81.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Single Number Predominant Upwind656.10.9145
Single Number Predominant Reaching585.31.0251
Single Number Predominant Downwind618.40.9702
Predominant Upwind - Low836.10.7176
Predominant Upwind - Low/Med710.90.8440
Predominant Upwind - Medium639.70.9379
Predominant Upwind - Med/High604.40.9927
Predominant Upwind - High587.41.0215
Predominant Downwind Low845.50.7096
Predominant Downwind Low/Med694.70.8637
Predominant Downwind Medium597.51.0043
Predominant Downwind Med/High535.41.1207
Predominant Downwind High494.21.2141
Predominant Reaching Low751.10.7988
Predominant Reaching Low/Med638.40.9398
Predominant Reaching Medium571.11.0506
Predominant Reaching Med/High529.01.1341
Predominant Reaching High499.71.2008
SA/DSPL Upwind24.01SA/DSPL Downwind41.76
Scoring OptionTODTOT
5-Band Windward/Leeward Low1039.90.5770
5-Band Windward/Leeward Low/Med846.30.7089
5-Band Windward/Leeward Medium723.50.8293
5-Band Windward/Leeward Med/High656.50.9139
5-Band Windward/Leeward High626.90.9570
Windward/Leeward 60-40 Low1041.30.5762
Windward/Leeward 60-40 Low/Med854.00.7026
Windward/Leeward 60-40 Medium738.40.8125
Windward/Leeward 60-40 Med/High678.50.8843
Windward/Leeward 60-40 High653.90.9175
5-Band AP Low804.90.7454
5-Band AP Low/Med676.50.8870
5-Band AP Medium598.61.0024
5-Band AP Med/High554.71.0817
5-Band AP High529.41.1333
5-Band SF Bay Tour - Low986.20.6084
5-Band SF Bay Tour - Low/Med809.90.7408
5-Band SF Bay Tour - Medium701.50.8553
5-Band SF Bay Tour - Med/High643.60.9322
5-Band SF Bay Tour - High615.10.9754
Chicago-Mac Upwind0.8976
Chicago-Mac All Purpose0.9237
Chicago-Mac Downwind0.9556
Bayview-Mac Cove Island0.8656
Bayview-Mac Shore0.8725
Harvest Moon Regatta533.11.1254
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance661.10.9075
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1087.0829.0699.6628.6589.7558.3505.1485.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance661.10.9075
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1087.0829.0699.6628.6589.7558.3505.1485.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance661.1
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1087.0829.0699.6628.6589.7558.3505.1485.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)661.10.9075
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1087.0829.0699.6628.6589.7558.3505.1485.2
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7832
Triple Number Coastal/Long Distance Medium0.9902
Triple Number Coastal/Long Distance High1.0954
Triple Number Windward/Leeward Low0.6103
Triple Number Windward/Leeward Medium0.8159
Triple Number Windward/Leeward High0.9264
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1087.0829.0699.6628.6589.7558.3505.1485.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance661.10.9075
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1087.0829.0699.6628.6589.7558.3505.1485.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance661.10.9075
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1087.0829.0699.6628.6589.7558.3505.1485.2
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance661.10.9075
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1087.0829.0699.6628.6589.7558.3505.1485.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low766.1
Triple Number Coastal/Long Distance Medium605.9
Triple Number Coastal/Long Distance High547.7
Triple Number Windward/Leeward Low983.1
Triple Number Windward/Leeward Medium735.4
Triple Number Windward/Leeward High647.7
Predominantly Upwind657.7
Predominantly Downwind617.4
Predominantly Reaching594.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance661.10.9075
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1087.0829.0699.6628.6589.7558.3505.1485.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7832
Triple Number Coastal/Long Distance Medium0.9902
Triple Number Coastal/Long Distance High1.0954
Triple Number Windward/Leeward Low0.6103
Triple Number Windward/Leeward Medium0.8159
Triple Number Windward/Leeward High0.9264
Coastal/Long Distance0.9075
Predominantly Upwind0.9122
Predominantly Downwind0.9719
For information
General Purpose Handicap (GPH)680.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7832
Tretall Distanseseilas Mellomvind0.9902
Tretall Distanseseilas Mye vind1.0954
Tretall Pølsebane Lite vind0.6103
Tretall Pølsebane Mellomvind0.8159
Tretall Pølsebane Mye vind0.9264
Distanseseilas ett tall0.9845
Enkeltall Motvind0.9122
Enkeltall Medvind0.9719
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Coastal/Long Distance661.10.9075
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind657.70.9122
Predominantly Downwind617.40.9719
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore614.30.9768
Cape Doctor Coastal514.91.1652
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7832
Triple Number Coastal/Long Distance Medium0.9902
Triple Number Coastal/Long Distance High1.0954
Triple Number Windward/Leeward Low0.6103
Triple Number Windward/Leeward Medium0.8159
Triple Number Windward/Leeward High0.9264
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7832
Triple Number Coastal/Long Distance Medium0.9902
Triple Number Coastal/Long Distance High1.0954
Triple Number Windward/Leeward Low0.6103
Triple Number Windward/Leeward Medium0.8159
Triple Number Windward/Leeward High0.9264
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance661.10.9075
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Predominantly Upwind657.70.9122
Predominantly Downwind617.40.9719
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1087.0829.0699.6628.6589.7558.3505.1485.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance661.10.9075
Triple Number Coastal/Long Distance Low766.10.7832
Triple Number Coastal/Long Distance Medium605.90.9902
Triple Number Coastal/Long Distance High547.71.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1087.0829.0699.6628.6589.7558.3505.1485.2
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low766.10.7832
Triple Number AP Medium606.00.9901
Triple Number AP High547.81.0954
Triple Number Windward/Leeward Low983.10.6103
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High647.70.9264
Single Number Predominant Upwind656.10.9145
Single Number Predominant Reaching585.31.0251
Single Number Predominant Downwind618.40.9702
Predominant Upwind - Low836.10.7176
Predominant Upwind - Low/Med710.90.8440
Predominant Upwind - Medium639.70.9379
Predominant Upwind - Med/High604.40.9927
Predominant Upwind - High587.41.0215
Predominant Downwind Low845.50.7096
Predominant Downwind Low/Med694.70.8637
Predominant Downwind Medium597.51.0043
Predominant Downwind Med/High535.41.1207
Predominant Downwind High494.21.2141
Predominant Reaching Low751.10.7988
Predominant Reaching Low/Med638.40.9398
Predominant Reaching Medium571.11.0506
Predominant Reaching Med/High529.01.1341
Predominant Reaching High499.71.2008
SA/DSPL Upwind24.01SA/DSPL Downwind41.76
Scoring OptionTODTOT
5-Band Windward/Leeward Low1039.90.5770
5-Band Windward/Leeward Low/Med846.30.7089
5-Band Windward/Leeward Medium723.50.8293
5-Band Windward/Leeward Med/High656.50.9139
5-Band Windward/Leeward High626.90.9570
Windward/Leeward 60-40 Low1041.30.5762
Windward/Leeward 60-40 Low/Med854.00.7026
Windward/Leeward 60-40 Medium738.40.8125
Windward/Leeward 60-40 Med/High678.50.8843
Windward/Leeward 60-40 High653.90.9175
5-Band AP Low804.90.7454
5-Band AP Low/Med676.50.8870
5-Band AP Medium598.61.0024
5-Band AP Med/High554.71.0817
5-Band AP High529.41.1333
5-Band SF Bay Tour - Low986.20.6084
5-Band SF Bay Tour - Low/Med809.90.7408
5-Band SF Bay Tour - Medium701.50.8553
5-Band SF Bay Tour - Med/High643.60.9322
5-Band SF Bay Tour - High615.10.9754
Chicago-Mac Upwind0.8976
Chicago-Mac All Purpose0.9237
Chicago-Mac Downwind0.9556
Bayview-Mac Cove Island0.8656
Bayview-Mac Shore0.8725
Harvest Moon Regatta533.11.1254

Club
Certificate
2024

Boat

TRUE BLUE

FIN-5347

Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFINNFLYER 31 LFMeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.380Max. Beam3.240Draft1.719Displacement2,582Wetted area15.54IMS L7.590LSM07.266Acc. length9.380Sink (kg/mm) 11.42
VCGD-0.004VCGM0.017RM Rated (kg·m) 47.2Limit of positive stability(°) N/AStability IndexN/ADefault crew weight436Declared crew weight425
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.405PBW0.100PIPA0.0044
PSD0.025PHD0.067PHL0.120
PSA18.0°ESL0.930
ST10.022ST20.095ST30.095
ST40.043ST50.300
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunners/Checkstays2Spreaders2Rotating mastNo
P11.519IG10.209ISP10.410MDT10.085MDL10.135MDT20.054MDL20.092TL2.270MW0.135GO0.155
E4.257J3.210BAS1.309FSD0.026SFJSPL3.200WPLTPSBD0.137MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered49.5Flotation Date14/05/1993
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

Club
Certificate
2024

Boat

TRUE BLUE

FIN-5347

Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.150.881.612.763.5829.24North 2014
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC0.080.470.811.612.312.9910.30NoNo 16.09North G1 Light 2020ORC20.080.460.841.552.252.9610.30NoNo 15.80North New G1 med+heavy 2020
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentORC10.3010.3010.305.795.7449.61North S2.5 2012ORC210.3010.3010.305.765.7649.44North S3 2016