Club Certificate2025
MerimörköFIN 9631
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 Angles43.8°43.8°41.9°40.5°39.7°39.2°38.9°39.0°40.2°
Beat VMG2.733.764.555.045.265.385.455.505.40
52°4.315.786.797.347.597.717.777.857.84
60°4.616.107.057.567.817.938.018.108.12
75°4.836.327.237.728.028.228.358.538.63
90°4.716.217.187.748.098.348.588.949.16
110°4.396.027.227.898.338.719.069.519.87
120°4.245.857.077.788.248.679.099.9510.59
135°3.725.226.467.367.928.358.789.7411.09
150°3.054.375.546.547.337.848.228.979.85
Run VMG2.643.784.805.676.366.877.308.028.67
Gybe Angles142.1°142.1°146.5°149.4°151.6°155.8°161.5°176.4°176.2°
APH ToD:525.1CDL: 10.428APH ToT: 1.1426CertNo:
BOAT
ClassFinngulf 41DesignerStrahlmanBuilderFinngulfAge date01/2003Series date02/2002Offset fileFINNGULF41-CRUISER.offData fileFIN9631
HULL
Length Overall12.495 mMaximum Beam3.844 mDraft1.826 mDisplacement8,500 kgDLR5.9943IMS DivisionCruiser/RacerDynamic Allowance0.180%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.454m
CREW
Maximum weight470 kg(declared)Minimum weight340 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail50.9851.91Headsail Luffed48.3048.30Headsail FlyingSymmetricAsymmetric100.79100.79 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail15.12Storm Jib13.89Heavy Weather Jib37.49
SAIL LIMITS
Headsails6Spinnakers5
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.
Club Certificate2025
MerimörköFIN 9631
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 VMG1316.9957.0791.6715.0683.8668.7660.6654.9666.1
52°836.0623.1530.4490.5474.4467.2463.1458.8459.0
60°780.9590.4510.4476.2460.8453.8449.6444.4443.3
75°744.7569.2498.0466.2449.1438.0431.0422.1417.2
90°763.8579.3501.7464.9445.0431.6419.5402.9393.1
110°819.2597.8498.5456.4432.4413.1397.5378.6364.9
120°848.1615.2509.2462.6436.8415.2395.9361.8339.8
135°966.8689.7557.5488.9454.6431.1409.8369.7324.5
150°1178.9823.9649.8550.1491.3459.4438.2401.5365.7
Run VMG1361.2951.4750.3635.2566.3524.3492.8449.0415.0
Selected Courses
Windward / Leeward1338.4954.2770.9675.1625.0596.5576.7552.0540.5
All purpose1005.7730.5603.1540.2508.0488.5474.3454.6442.0
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward651.90.9204
All purpose525.11.1426
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance572.61.0479
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1425.6953.9725.3608.7542.9507.6479.2432.7419.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8185
Downwind "popa"0.9612
70% up, 30% down "Ilhabela"0.8566
30% up, 70% down "Ilhabela-inverso"0.9134
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Predominantly Upwind566.01.0601
Predominantly Downwind536.01.1193
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low666.80.8998
Triple Number AP Medium521.81.1498
Triple Number AP High470.51.2754
Triple Number Windward/Leeward Low900.60.6662
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Single Number Predominant Upwind587.91.0207
Single Number Predominant Reaching520.11.1535
Single Number Predominant Downwind559.21.0729
Predominant Upwind - Low794.90.7548
Predominant Upwind - Low/Med614.60.9762
Predominant Upwind - Medium549.41.0922
Predominant Upwind - Med/High518.01.1584
Predominant Upwind - High504.01.1904
Predominant Downwind Low811.20.7397
Predominant Downwind Low/Med603.70.9939
Predominant Downwind Medium517.91.1585
Predominant Downwind Med/High465.81.2881
Predominant Downwind High433.41.3843
Predominant Reaching Low711.90.8429
Predominant Reaching Low/Med550.11.0906
Predominant Reaching Medium487.81.2300
Predominant Reaching Med/High451.21.3298
Predominant Reaching High428.21.4011
SA/DSPL Upwind23.67SA/DSPL Downwind36.18
Scoring OptionTODTOT
5-Band Windward/Leeward Low1004.60.5972
5-Band Windward/Leeward Low/Med742.60.8080
5-Band Windward/Leeward Medium636.70.9424
5-Band Windward/Leeward Med/High580.01.0346
5-Band Windward/Leeward High554.31.0825
Windward/Leeward 60-40 Low1004.80.5971
Windward/Leeward 60-40 Low/Med748.70.8014
Windward/Leeward 60-40 Medium648.00.9259
Windward/Leeward 60-40 Med/High596.61.0058
Windward/Leeward 60-40 High575.01.0435
5-Band AP Low735.20.8161
5-Band AP Low/Med585.61.0245
5-Band AP Medium515.21.1647
5-Band AP Med/High476.21.2599
5-Band AP High455.81.3163
5-Band SF Bay Tour - Low865.10.6936
5-Band SF Bay Tour - Low/Med708.50.8469
5-Band SF Bay Tour - Medium612.80.9791
5-Band SF Bay Tour - Med/High562.71.0663
5-Band SF Bay Tour - High539.11.1129
Chicago-Mac Upwind0.9919
Chicago-Mac All Purpose1.0171
Chicago-Mac Downwind1.0352
Bayview-Mac Cove Island0.7497
Bayview-Mac Shore0.7559
Harvest Moon Regatta455.81.3164
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance572.61.0479
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1425.6953.9725.3608.7542.9507.6479.2432.7419.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance572.61.0479
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1425.6953.9725.3608.7542.9507.6479.2432.7419.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance572.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1425.6953.9725.3608.7542.9507.6479.2432.7419.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating572.61.0479
FinRating, kevyt tuuli985.21.0150
FinRating, kova tuuli458.41.0908
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0479
Triple Number Coastal/Long Distance Low0.8998
Triple Number Coastal/Long Distance Medium1.1499
Triple Number Coastal/Long Distance High1.2754
Triple Number Windward/Leeward Low0.6956
Triple Number Windward/Leeward Medium0.9277
Triple Number Windward/Leeward High1.0482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1425.6953.9725.3608.7542.9507.6479.2432.7419.1
For information
General Purpose Handicap (GPH)587.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance572.61.0479
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1425.6953.9725.3608.7542.9507.6479.2432.7419.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance572.61.0479
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1425.6953.9725.3608.7542.9507.6479.2432.7419.1
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance572.61.0479
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1425.6953.9725.3608.7542.9507.6479.2432.7419.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low666.8
Triple Number Coastal/Long Distance Medium521.8
Triple Number Coastal/Long Distance High470.4
Triple Number Windward/Leeward Low862.6
Triple Number Windward/Leeward Medium646.8
Triple Number Windward/Leeward High572.4
Predominantly Upwind566.0
Predominantly Downwind536.0
Predominantly Reaching511.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance572.61.0479
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1425.6953.9725.3608.7542.9507.6479.2432.7419.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8998
Triple Number Coastal/Long Distance Medium1.1499
Triple Number Coastal/Long Distance High1.2754
Triple Number Windward/Leeward Low0.6956
Triple Number Windward/Leeward Medium0.9277
Triple Number Windward/Leeward High1.0482
Coastal/Long Distance1.0479
Predominantly Upwind1.0601
Predominantly Downwind1.1193
For information
General Purpose Handicap (GPH)587.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1426
Distanseseilas Trippeltall svak vind0.8998
Distanseseilas Trippeltall mellomvind1.1499
Distanseseilas Trippeltall sterk vind1.2754
Pølsebane Trippeltall svak vind0.6956
Pølsebane Trippeltall mellomvind0.9277
Pølsebane Trippeltall sterk vind1.0482
Motvind Singeltall1.0601
Medvind Singeltall1.1193
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Coastal/Long Distance572.61.0479
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind566.01.0601
Predominantly Downwind536.01.1193
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore544.01.1030
Cape Doctor Coastal445.81.3460
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8998
Triple Number Coastal/Long Distance Medium1.1499
Triple Number Coastal/Long Distance High1.2754
Triple Number Windward/Leeward Low0.6956
Triple Number Windward/Leeward Medium0.9277
Triple Number Windward/Leeward High1.0482
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8998
Triple Number Coastal/Long Distance Medium1.1499
Triple Number Coastal/Long Distance High1.2754
Triple Number Windward/Leeward Low0.6956
Triple Number Windward/Leeward Medium0.9277
Triple Number Windward/Leeward High1.0482
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance572.61.0479
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Predominantly Upwind566.01.0601
Predominantly Downwind536.01.1193
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1425.6953.9725.3608.7542.9507.6479.2432.7419.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance572.61.0479
Triple Number Coastal/Long Distance Low666.80.8998
Triple Number Coastal/Long Distance Medium521.81.1499
Triple Number Coastal/Long Distance High470.41.2754
Triple Number Windward/Leeward Low862.60.6956
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1425.6953.9725.3608.7542.9507.6479.2432.7419.1
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low666.80.8998
Triple Number AP Medium521.81.1498
Triple Number AP High470.51.2754
Triple Number Windward/Leeward Low900.60.6662
Triple Number Windward/Leeward Medium646.80.9277
Triple Number Windward/Leeward High572.41.0482
Single Number Predominant Upwind587.91.0207
Single Number Predominant Reaching520.11.1535
Single Number Predominant Downwind559.21.0729
Predominant Upwind - Low794.90.7548
Predominant Upwind - Low/Med614.60.9762
Predominant Upwind - Medium549.41.0922
Predominant Upwind - Med/High518.01.1584
Predominant Upwind - High504.01.1904
Predominant Downwind Low811.20.7397
Predominant Downwind Low/Med603.70.9939
Predominant Downwind Medium517.91.1585
Predominant Downwind Med/High465.81.2881
Predominant Downwind High433.41.3843
Predominant Reaching Low711.90.8429
Predominant Reaching Low/Med550.11.0906
Predominant Reaching Medium487.81.2300
Predominant Reaching Med/High451.21.3298
Predominant Reaching High428.21.4011
SA/DSPL Upwind23.67SA/DSPL Downwind36.18
Scoring OptionTODTOT
5-Band Windward/Leeward Low1004.60.5972
5-Band Windward/Leeward Low/Med742.60.8080
5-Band Windward/Leeward Medium636.70.9424
5-Band Windward/Leeward Med/High580.01.0346
5-Band Windward/Leeward High554.31.0825
Windward/Leeward 60-40 Low1004.80.5971
Windward/Leeward 60-40 Low/Med748.70.8014
Windward/Leeward 60-40 Medium648.00.9259
Windward/Leeward 60-40 Med/High596.61.0058
Windward/Leeward 60-40 High575.01.0435
5-Band AP Low735.20.8161
5-Band AP Low/Med585.61.0245
5-Band AP Medium515.21.1647
5-Band AP Med/High476.21.2599
5-Band AP High455.81.3163
5-Band SF Bay Tour - Low865.10.6936
5-Band SF Bay Tour - Low/Med708.50.8469
5-Band SF Bay Tour - Medium612.80.9791
5-Band SF Bay Tour - Med/High562.71.0663
5-Band SF Bay Tour - High539.11.1129
Chicago-Mac Upwind0.9919
Chicago-Mac All Purpose1.0171
Chicago-Mac Downwind1.0352
Bayview-Mac Cove Island0.7497
Bayview-Mac Shore0.7559
Harvest Moon Regatta455.81.3164
Club Certificate2025
MerimörköFIN 9631
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFinngulf 41Measurement11/05/2022HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA12.495Max. Beam3.844Draft1.826Displacement8,500Wetted area33.15IMS L11.318LSM011.234Acc. length12.493Sink (kg/mm) 25.04
VCGD0.009VCGM0.006RM Rated (kg·m) 217.5Limit of positive stability(°) N/AStability IndexN/ADefault crew weight813Declared crew weight470
PROPELLER
Propeller TypeFolding 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.454PBWPIPA0.0008
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1CheckstaysSpreaders2Rotating mastNo
P16.000IG16.664ISP16.674MDT10.140MDL10.205MDT2MDL2TLTaperMWGO
E5.400J4.350BAS1.560FSDSFJSPLWPLTPS5.180BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date11/05/2022
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
MerimörköFIN 9631
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.181.152.023.454.4650.98
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.070.721.442.974.616.3115.79NoNo 48.30
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment117.0715.6816.387.297.7794%100.79
CRUISER/RACER REQUIREMENTS*
Accommodation length12.5 mTable area0.55 m²Headroom1.83 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity162 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity100 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.