Club Certificate2025
NonamiFIN-790
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 Angles44.0°44.0°41.8°39.3°37.8°37.7°37.8°38.3°39.7°
Beat VMG2.443.364.084.574.774.844.884.914.83
52°3.855.166.056.526.806.957.067.187.18
60°4.155.456.266.747.147.337.487.667.72
75°4.375.646.396.967.577.968.238.618.83
90°4.305.696.587.097.638.429.009.7510.27
110°4.415.816.787.708.429.009.5610.7512.56
120°4.285.676.667.598.699.5910.3111.7913.36
135°3.695.116.217.017.929.0810.4213.5715.27
150°3.004.305.436.276.997.788.7812.1615.36
Run VMG2.603.724.705.446.056.747.6010.5313.31
Gybe Angles143.0°143.0°147.6°151.9°150.3°146.8°145.6°140.7°145.9°
APH ToD:553.5CDL: 7.543APH ToT: 1.0840CertNo:
BOAT
ClassMelges 24 ODDesignerREICHEL/PUGHBuilderRowen CompositesAge date01/2009Series date12/1992Offset fileMELG24.OD.offData fileFIN790
HULL
Length Overall7.509 mMaximum Beam2.490 mDraft1.525 mDisplacement821 kgDLR2.7391IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight450 kg(declared)Minimum weight320 kg ✱ when appliedNon Manual PowerCrew Arm ExtensionLoose or no lifelines
SAIL AREAS (m²)
MeasuredRatedMainsail21.3822.33Headsail Luffed12.1312.13Headsail FlyingSymmetricAsymmetric52.6752.67 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail5.87Storm Jib3.72Heavy Weather Jib10.04
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
LIFELINE TENSION ACC CLASSRULE
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
NonamiFIN-790
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 VMG1476.01071.0881.9788.3755.3743.8738.3733.3745.4
52°935.1697.4595.0552.3529.3517.9510.2501.2501.7
60°866.6660.1575.0533.8504.3491.3481.5470.1466.5
75°823.7637.8563.5516.9475.7452.4437.7418.1407.9
90°838.0633.2547.3507.6471.7427.5399.9369.1350.5
110°816.2620.0531.3467.5427.8400.1376.6334.8286.7
120°841.9634.4540.8474.3414.1375.3349.3305.4269.5
135°975.0704.7579.6513.9454.4396.6345.4265.3235.8
150°1199.3837.1663.4574.3515.1462.6410.2296.0234.3
Run VMG1383.1966.7766.1661.4594.6534.2473.7341.8270.6
Selected Courses
Windward / Leeward1428.61018.8824.0724.8675.0639.0606.0537.5508.0
All purpose1070.7783.6651.2581.8539.0506.8480.6434.4411.3
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward696.10.8620
All purpose553.51.0840
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9941
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1506.31013.6775.5654.1578.0527.2482.7404.8379.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7353
Downwind "popa"0.9681
70% up, 30% down "Ilhabela"0.7925
30% up, 70% down "Ilhabela-inverso"0.8841
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Predominantly Upwind614.70.9761
Predominantly Downwind553.11.0849
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low717.40.8364
Triple Number AP Medium554.61.0818
Triple Number AP High469.81.2770
Triple Number Windward/Leeward Low962.30.6235
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Single Number Predominant Upwind635.60.9441
Single Number Predominant Reaching540.31.1104
Single Number Predominant Downwind570.41.0519
Predominant Upwind - Low871.20.6887
Predominant Upwind - Low/Med673.70.8906
Predominant Upwind - Medium596.41.0061
Predominant Upwind - Med/High547.71.0955
Predominant Upwind - High520.61.1526
Predominant Downwind Low848.40.7072
Predominant Downwind Low/Med637.10.9417
Predominant Downwind Medium537.81.1157
Predominant Downwind Med/High446.21.3448
Predominant Downwind High375.81.5966
Predominant Reaching Low762.70.7867
Predominant Reaching Low/Med591.71.0140
Predominant Reaching Medium512.21.1715
Predominant Reaching Med/High441.01.3605
Predominant Reaching High395.41.5175
SA/DSPL Upwind38.26SA/DSPL Downwind84.51
Scoring OptionTODTOT
5-Band Windward/Leeward Low1072.80.5593
5-Band Windward/Leeward Low/Med795.70.7540
5-Band Windward/Leeward Medium683.80.8774
5-Band Windward/Leeward Med/High605.80.9904
5-Band Windward/Leeward High544.31.1024
Windward/Leeward 60-40 Low1083.20.5539
Windward/Leeward 60-40 Low/Med808.20.7424
Windward/Leeward 60-40 Medium700.60.8564
Windward/Leeward 60-40 Med/High632.60.9485
Windward/Leeward 60-40 High582.71.0298
5-Band AP Low783.10.7662
5-Band AP Low/Med629.70.9529
5-Band AP Medium545.21.1006
5-Band AP Med/High482.21.2444
5-Band AP High438.41.3686
5-Band SF Bay Tour - Low927.60.6468
5-Band SF Bay Tour - Low/Med761.30.7881
5-Band SF Bay Tour - Medium656.60.9139
5-Band SF Bay Tour - Med/High585.21.0254
5-Band SF Bay Tour - High532.51.1268
Chicago-Mac Upwind0.9132
Chicago-Mac All Purpose0.9592
Chicago-Mac Downwind1.0018
Bayview-Mac Cove Island0.7012
Bayview-Mac Shore0.7059
Harvest Moon Regatta450.11.3329
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9941
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1506.31013.6775.5654.1578.0527.2482.7404.8379.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9941
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1506.31013.6775.5654.1578.0527.2482.7404.8379.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance603.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1506.31013.6775.5654.1578.0527.2482.7404.8379.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating603.50.9941
FinRating, kevyt tuuli1050.40.9520
FinRating, kova tuuli438.21.1410
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9941
Triple Number Coastal/Long Distance Low0.8364
Triple Number Coastal/Long Distance Medium1.0820
Triple Number Coastal/Long Distance High1.2770
Triple Number Windward/Leeward Low0.6512
Triple Number Windward/Leeward Medium0.8633
Triple Number Windward/Leeward High1.0194
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1506.31013.6775.5654.1578.0527.2482.7404.8379.1
For information
General Purpose Handicap (GPH)622.7
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9941
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1506.31013.6775.5654.1578.0527.2482.7404.8379.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9941
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1506.31013.6775.5654.1578.0527.2482.7404.8379.1
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9941
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1506.31013.6775.5654.1578.0527.2482.7404.8379.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low717.4
Triple Number Coastal/Long Distance Medium554.5
Triple Number Coastal/Long Distance High469.9
Triple Number Windward/Leeward Low921.4
Triple Number Windward/Leeward Medium695.0
Triple Number Windward/Leeward High588.6
Predominantly Upwind614.7
Predominantly Downwind553.1
Predominantly Reaching530.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9941
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1506.31013.6775.5654.1578.0527.2482.7404.8379.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8364
Triple Number Coastal/Long Distance Medium1.0820
Triple Number Coastal/Long Distance High1.2770
Triple Number Windward/Leeward Low0.6512
Triple Number Windward/Leeward Medium0.8633
Triple Number Windward/Leeward High1.0194
Coastal/Long Distance0.9941
Predominantly Upwind0.9761
Predominantly Downwind1.0849
For information
General Purpose Handicap (GPH)622.7
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0840
Distanseseilas Trippeltall svak vind0.8364
Distanseseilas Trippeltall mellomvind1.0820
Distanseseilas Trippeltall sterk vind1.2770
Pølsebane Trippeltall svak vind0.6512
Pølsebane Trippeltall mellomvind0.8633
Pølsebane Trippeltall sterk vind1.0194
Motvind Singeltall0.9761
Medvind Singeltall1.0849
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Coastal/Long Distance603.50.9941
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind614.70.9761
Predominantly Downwind553.11.0849
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore516.81.1609
Cape Doctor Coastal418.21.4346
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8364
Triple Number Coastal/Long Distance Medium1.0820
Triple Number Coastal/Long Distance High1.2770
Triple Number Windward/Leeward Low0.6512
Triple Number Windward/Leeward Medium0.8633
Triple Number Windward/Leeward High1.0194
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8364
Triple Number Coastal/Long Distance Medium1.0820
Triple Number Coastal/Long Distance High1.2770
Triple Number Windward/Leeward Low0.6512
Triple Number Windward/Leeward Medium0.8633
Triple Number Windward/Leeward High1.0194
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9941
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Predominantly Upwind614.70.9761
Predominantly Downwind553.11.0849
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1506.31013.6775.5654.1578.0527.2482.7404.8379.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9941
Triple Number Coastal/Long Distance Low717.40.8364
Triple Number Coastal/Long Distance Medium554.51.0820
Triple Number Coastal/Long Distance High469.91.2770
Triple Number Windward/Leeward Low921.40.6512
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1506.31013.6775.5654.1578.0527.2482.7404.8379.1
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low717.40.8364
Triple Number AP Medium554.61.0818
Triple Number AP High469.81.2770
Triple Number Windward/Leeward Low962.30.6235
Triple Number Windward/Leeward Medium695.00.8633
Triple Number Windward/Leeward High588.61.0194
Single Number Predominant Upwind635.60.9441
Single Number Predominant Reaching540.31.1104
Single Number Predominant Downwind570.41.0519
Predominant Upwind - Low871.20.6887
Predominant Upwind - Low/Med673.70.8906
Predominant Upwind - Medium596.41.0061
Predominant Upwind - Med/High547.71.0955
Predominant Upwind - High520.61.1526
Predominant Downwind Low848.40.7072
Predominant Downwind Low/Med637.10.9417
Predominant Downwind Medium537.81.1157
Predominant Downwind Med/High446.21.3448
Predominant Downwind High375.81.5966
Predominant Reaching Low762.70.7867
Predominant Reaching Low/Med591.71.0140
Predominant Reaching Medium512.21.1715
Predominant Reaching Med/High441.01.3605
Predominant Reaching High395.41.5175
SA/DSPL Upwind38.26SA/DSPL Downwind84.51
Scoring OptionTODTOT
5-Band Windward/Leeward Low1072.80.5593
5-Band Windward/Leeward Low/Med795.70.7540
5-Band Windward/Leeward Medium683.80.8774
5-Band Windward/Leeward Med/High605.80.9904
5-Band Windward/Leeward High544.31.1024
Windward/Leeward 60-40 Low1083.20.5539
Windward/Leeward 60-40 Low/Med808.20.7424
Windward/Leeward 60-40 Medium700.60.8564
Windward/Leeward 60-40 Med/High632.60.9485
Windward/Leeward 60-40 High582.71.0298
5-Band AP Low783.10.7662
5-Band AP Low/Med629.70.9529
5-Band AP Medium545.21.1006
5-Band AP Med/High482.21.2444
5-Band AP High438.41.3686
5-Band SF Bay Tour - Low927.60.6468
5-Band SF Bay Tour - Low/Med761.30.7881
5-Band SF Bay Tour - Medium656.60.9139
5-Band SF Bay Tour - Med/High585.21.0254
5-Band SF Bay Tour - High532.51.1268
Chicago-Mac Upwind0.9132
Chicago-Mac All Purpose0.9592
Chicago-Mac Downwind1.0018
Bayview-Mac Cove Island0.7012
Bayview-Mac Shore0.7059
Harvest Moon Regatta450.11.3329
Club Certificate2025
NonamiFIN-790
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMelges 24 ODMeasurementHINGB-RCLM0529K001Plan reviewHull constructionCoredCarbon rudderYesLight stanchionsNoTrim tabNo
LOA7.509Max. Beam2.490Draft1.525Displacement821Wetted area10.31IMS L7.268LSM06.692Acc. length7.509Sink (kg/mm) 8.78
VCGD0.040VCGM0.020RM Rated (kg·m) 25.1Limit of positive stability(°) N/AStability IndexN/ADefault crew weight388Declared crew weight450
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P8.818IG8.620ISP9.777MDT10.076MDL10.120MDT20.062MDL20.075TL1.578MW0.114GO0.114
E3.800J2.506BAS1.000FSDSFJ0.200SPLWPLTPS4.106BD0.103MWT28.00MCG3.150
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date16/03/2017
W118.5W218.5W318.5W418.5
PD1427.9PD2432.4PD3428.3PD4436.5
WD7.400PLM9000.00GSA1.0RSA1.0RM25.0
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
NonamiFIN-790
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.180.931.682.703.3321.38class rules
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.050.400.761.422.092.788.56NoNo 12.13class rules
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment111.4510.0710.765.786.2592%52.6717/04/2025not od