Non Spin/HSFClub Certificate2025
ConcordiaFIN 12229
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
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 Angles44.2°44.2°42.3°41.0°40.8°40.5°40.4°40.8°41.9°
Beat VMG2.002.773.393.814.054.164.224.224.15
52°3.154.265.075.605.886.026.086.126.12
60°3.354.495.295.796.056.196.266.336.36
75°3.424.615.455.946.226.396.516.636.72
90°3.314.505.375.936.256.466.636.867.00
110°2.854.014.975.726.176.476.717.117.46
120°2.703.824.795.566.076.406.667.127.55
135°2.343.404.365.145.776.176.466.947.41
150°1.972.923.834.615.285.826.196.697.14
Run VMG1.712.533.324.044.685.275.776.396.84
Gybe Angles148.4°148.4°152.3°158.6°167.2°172.1°177.2°179.0°179.2°
APH ToD:703.6CDL: 6.408APH ToT: 0.8528CertNo:58
BOAT
ClassB-31DesignerBROSTRÖM & GRANDINBuilderAge date01/1971Series date01/1972Offset fileG1013.bofData fileFIN12229
HULL
Length Overall9.330 mMaximum Beam2.942 mDraft1.568 mDisplacement3,500 kgDLR10.5290IMS DivisionCruiser/RacerDynamic Allowance0.620%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeSolid 3 bladesDiameter0.415m
CREW
Maximum weight400 kg(declared)Minimum weight270 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail16.6216.89Headsail Luffed29.8529.85Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail4.76Storm Jib6.07Heavy Weather Jib16.37
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
ConcordiaFIN 12229
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
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 VMG1801.41298.51063.0945.1888.0865.6853.9853.7868.3
52°1142.6844.3709.6642.9611.8598.3592.2587.9588.1
60°1075.1801.0679.9622.1594.7581.3574.9568.5565.9
75°1052.2781.0661.0605.7578.7563.1553.3542.8535.9
90°1088.1800.8670.6607.2576.4557.0542.8525.1513.9
110°1261.6898.7724.1629.7583.2556.5536.4506.3482.9
120°1335.6942.5751.8647.5593.0562.8540.8505.7476.9
135°1536.31058.6825.8700.1624.4583.2557.5518.8486.0
150°1828.31232.0939.7780.2681.3618.2581.7538.0504.5
Run VMG2111.01422.61083.0891.5768.4683.0624.4563.1526.6
Selected Courses
Windward / Leeward1952.81360.51073.0918.3828.2774.3739.1708.4697.5
All purpose1471.51043.7838.9731.4672.4639.2618.4596.2583.7
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward871.60.6884
All purpose703.60.8528
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance768.70.7805
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2104.01366.71010.5826.5719.6664.3625.0569.1553.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6206
Downwind "popa"0.6958
70% up, 30% down "Ilhabela"0.6414
30% up, 70% down "Ilhabela-inverso"0.6714
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Predominantly Upwind750.30.7996
Predominantly Downwind730.60.8212
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low941.30.6374
Triple Number AP Medium697.70.8599
Triple Number AP High615.30.9752
Triple Number Windward/Leeward Low1275.20.4705
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Single Number Predominant Upwind783.30.7660
Single Number Predominant Reaching704.90.8511
Single Number Predominant Downwind771.10.7782
Predominant Upwind - Low1107.90.5416
Predominant Upwind - Low/Med830.80.7222
Predominant Upwind - Medium722.10.8309
Predominant Upwind - Med/High671.20.8940
Predominant Upwind - High655.70.9151
Predominant Downwind Low1196.50.5015
Predominant Downwind Low/Med849.90.7060
Predominant Downwind Medium698.70.8587
Predominant Downwind Med/High610.10.9835
Predominant Downwind High570.51.0517
Predominant Reaching Low1022.10.5870
Predominant Reaching Low/Med756.80.7928
Predominant Reaching Medium648.60.9251
Predominant Reaching Med/High590.71.0157
Predominant Reaching High565.41.0612
SA/DSPL Upwind20.08SA/DSPL Downwind20.08
Scoring OptionTODTOT
5-Band Windward/Leeward Low1437.60.4174
5-Band Windward/Leeward Low/Med1024.70.5855
5-Band Windward/Leeward Medium847.10.7083
5-Band Windward/Leeward Med/High747.40.8028
5-Band Windward/Leeward High711.90.8429
Windward/Leeward 60-40 Low1423.10.4216
Windward/Leeward 60-40 Low/Med1025.80.5849
Windward/Leeward 60-40 Medium858.80.6986
Windward/Leeward 60-40 Med/High769.70.7795
Windward/Leeward 60-40 High740.70.8100
5-Band AP Low1062.50.5647
5-Band AP Low/Med806.60.7439
5-Band AP Medium686.00.8746
5-Band AP Med/High622.70.9635
5-Band AP High597.91.0036
5-Band SF Bay Tour - Low1226.80.4891
5-Band SF Bay Tour - Low/Med977.50.6138
5-Band SF Bay Tour - Medium817.00.7344
5-Band SF Bay Tour - Med/High731.60.8201
5-Band SF Bay Tour - High701.90.8548
Chicago-Mac Upwind0.7407
Chicago-Mac All Purpose0.7474
Chicago-Mac Downwind0.7457
Bayview-Mac Cove Island0.5294
Bayview-Mac Shore0.5353
Harvest Moon Regatta605.90.9903
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance768.70.7805
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2104.01366.71010.5826.5719.6664.3625.0569.1553.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance768.70.7805
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2104.01366.71010.5826.5719.6664.3625.0569.1553.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance768.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2104.01366.71010.5826.5719.6664.3625.0569.1553.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating768.70.7805
FinRating, kevyt tuuli1418.30.7051
FinRating, kova tuuli602.10.8304
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7805
Triple Number Coastal/Long Distance Low0.6374
Triple Number Coastal/Long Distance Medium0.8600
Triple Number Coastal/Long Distance High0.9752
Triple Number Windward/Leeward Low0.4931
Triple Number Windward/Leeward Medium0.6935
Triple Number Windward/Leeward High0.8148
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2104.01366.71010.5826.5719.6664.3625.0569.1553.4
For information
General Purpose Handicap (GPH)797.3
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance768.70.7805
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2104.01366.71010.5826.5719.6664.3625.0569.1553.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance768.70.7805
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2104.01366.71010.5826.5719.6664.3625.0569.1553.4
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance768.70.7805
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2104.01366.71010.5826.5719.6664.3625.0569.1553.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low941.3
Triple Number Coastal/Long Distance Medium697.7
Triple Number Coastal/Long Distance High615.3
Triple Number Windward/Leeward Low1216.8
Triple Number Windward/Leeward Medium865.2
Triple Number Windward/Leeward High736.4
Predominantly Upwind750.3
Predominantly Downwind730.6
Predominantly Reaching691.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance768.70.7805
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2104.01366.71010.5826.5719.6664.3625.0569.1553.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6374
Triple Number Coastal/Long Distance Medium0.8600
Triple Number Coastal/Long Distance High0.9752
Triple Number Windward/Leeward Low0.4931
Triple Number Windward/Leeward Medium0.6935
Triple Number Windward/Leeward High0.8148
Coastal/Long Distance0.7805
Predominantly Upwind0.7996
Predominantly Downwind0.8212
For information
General Purpose Handicap (GPH)797.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8528
Distanseseilas Trippeltall svak vind0.6374
Distanseseilas Trippeltall mellomvind0.8600
Distanseseilas Trippeltall sterk vind0.9752
Pølsebane Trippeltall svak vind0.4931
Pølsebane Trippeltall mellomvind0.6935
Pølsebane Trippeltall sterk vind0.8148
Motvind Singeltall0.7996
Medvind Singeltall0.8212
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Coastal/Long Distance768.70.7805
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind750.30.7996
Predominantly Downwind730.60.8212
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore700.80.8562
Cape Doctor Coastal587.41.0214
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6374
Triple Number Coastal/Long Distance Medium0.8600
Triple Number Coastal/Long Distance High0.9752
Triple Number Windward/Leeward Low0.4931
Triple Number Windward/Leeward Medium0.6935
Triple Number Windward/Leeward High0.8148
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6374
Triple Number Coastal/Long Distance Medium0.8600
Triple Number Coastal/Long Distance High0.9752
Triple Number Windward/Leeward Low0.4931
Triple Number Windward/Leeward Medium0.6935
Triple Number Windward/Leeward High0.8148
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance768.70.7805
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Predominantly Upwind750.30.7996
Predominantly Downwind730.60.8212
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2104.01366.71010.5826.5719.6664.3625.0569.1553.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance768.70.7805
Triple Number Coastal/Long Distance Low941.30.6374
Triple Number Coastal/Long Distance Medium697.70.8600
Triple Number Coastal/Long Distance High615.30.9752
Triple Number Windward/Leeward Low1216.80.4931
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2104.01366.71010.5826.5719.6664.3625.0569.1553.4
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low941.30.6374
Triple Number AP Medium697.70.8599
Triple Number AP High615.30.9752
Triple Number Windward/Leeward Low1275.20.4705
Triple Number Windward/Leeward Medium865.20.6935
Triple Number Windward/Leeward High736.40.8148
Single Number Predominant Upwind783.30.7660
Single Number Predominant Reaching704.90.8511
Single Number Predominant Downwind771.10.7782
Predominant Upwind - Low1107.90.5416
Predominant Upwind - Low/Med830.80.7222
Predominant Upwind - Medium722.10.8309
Predominant Upwind - Med/High671.20.8940
Predominant Upwind - High655.70.9151
Predominant Downwind Low1196.50.5015
Predominant Downwind Low/Med849.90.7060
Predominant Downwind Medium698.70.8587
Predominant Downwind Med/High610.10.9835
Predominant Downwind High570.51.0517
Predominant Reaching Low1022.10.5870
Predominant Reaching Low/Med756.80.7928
Predominant Reaching Medium648.60.9251
Predominant Reaching Med/High590.71.0157
Predominant Reaching High565.41.0612
SA/DSPL Upwind20.08SA/DSPL Downwind20.08
Scoring OptionTODTOT
5-Band Windward/Leeward Low1437.60.4174
5-Band Windward/Leeward Low/Med1024.70.5855
5-Band Windward/Leeward Medium847.10.7083
5-Band Windward/Leeward Med/High747.40.8028
5-Band Windward/Leeward High711.90.8429
Windward/Leeward 60-40 Low1423.10.4216
Windward/Leeward 60-40 Low/Med1025.80.5849
Windward/Leeward 60-40 Medium858.80.6986
Windward/Leeward 60-40 Med/High769.70.7795
Windward/Leeward 60-40 High740.70.8100
5-Band AP Low1062.50.5647
5-Band AP Low/Med806.60.7439
5-Band AP Medium686.00.8746
5-Band AP Med/High622.70.9635
5-Band AP High597.91.0036
5-Band SF Bay Tour - Low1226.80.4891
5-Band SF Bay Tour - Low/Med977.50.6138
5-Band SF Bay Tour - Medium817.00.7344
5-Band SF Bay Tour - Med/High731.60.8201
5-Band SF Bay Tour - High701.90.8548
Chicago-Mac Upwind0.7407
Chicago-Mac All Purpose0.7474
Chicago-Mac Downwind0.7457
Bayview-Mac Cove Island0.5294
Bayview-Mac Shore0.5353
Harvest Moon Regatta605.90.9903
Non Spin/HSFClub Certificate2025
ConcordiaFIN 12229
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassB-31Measurement01/07/2014HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.330Max. Beam2.942Draft1.568Displacement3,500Wetted area17.26IMS L7.161LSM06.927Acc. length9.079Sink (kg/mm) 11.74
VCGD-0.101VCGM-0.015RM Rated (kg·m) 53.9Limit of positive stability(°) N/AStability IndexN/ADefault crew weight408Declared crew weight400
PROPELLER
Propeller TypeSolid 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.415PBWPIPA0.0215
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionAftInner stayMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P9.700IG11.010ISP11.010MDT10.115MDL10.170MDT2MDL2TLNo TaperMWGO
E2.800J2.460BAS1.090FSDFoilSFJ0.360SPL3.460WPLTPSBD0.111MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date17/07/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Non Spin/HSFClub Certificate2025
ConcordiaFIN 12229
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.641.121.8816.62
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment11.302.605.1911.40NoNo 29.85
CRUISER/RACER REQUIREMENTS*
Accommodation length9.1 mTable area0.44 m²Headroom1.63 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity62 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity32 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.