Club Certificate2025
SlipfreeFIN11819
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 Angles44.3°44.3°42.3°41.0°39.0°37.6°37.4°37.5°38.3°
Beat VMG2.333.233.944.484.905.145.255.315.26
52°3.654.975.946.566.937.157.277.367.37
60°3.895.256.216.777.097.307.457.577.62
75°4.065.436.376.917.237.477.687.958.07
90°3.965.326.296.967.347.597.768.198.50
110°3.785.236.357.047.447.798.118.648.96
120°3.635.046.166.917.367.728.088.799.49
135°3.214.535.656.537.097.477.838.589.50
150°2.653.864.965.896.647.137.498.178.92
Run VMG2.303.344.305.125.856.456.937.618.24
Gybe Angles146.2°146.2°150.5°153.4°158.4°165.1°172.3°178.1°177.7°
APH ToD:579.6CDL: 8.900APH ToT: 1.0353CertNo:
BOAT
ClassDufour 34DesignerUmberto FelciBuilderDufour YachtAge dateSeries date07/2002Offset fileDUF34PERF.offData fileFIN11819
HULL
Length Overall10.280 mMaximum Beam3.482 mDraft1.941 mDisplacement5,500 kgDLR6.7398IMS DivisionCruiser/RacerDynamic Allowance0.340%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.400m
CREW
Maximum weight915 kg(declared)Minimum weight778 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail31.6132.37Headsail Luffed32.7732.77Headsail FlyingSymmetric71.1271.12Asymmetric
STORM SAIL AREAS (m²)
Trysail9.31Storm Jib8.76Heavy Weather Jib23.63
SAIL LIMITS
Headsails5Spinnakers4
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
SlipfreeFIN11819
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 VMG1544.21116.0913.9803.1735.4699.9686.2678.2684.1
52°986.3725.0606.3548.4519.6503.6495.1489.4488.3
60°926.0686.0579.8531.8508.0493.0483.1475.4472.3
75°887.8663.1565.3520.7498.1482.0469.0452.9446.0
90°908.1676.6572.4517.0490.5474.3464.1439.4423.7
110°952.6688.2566.6511.7483.8462.3443.8416.6401.8
120°990.7713.8584.3520.8489.3466.1445.4409.6379.3
135°1120.6794.8637.3551.3507.6481.6459.7419.6379.1
150°1358.6933.5725.4610.8542.2504.8480.8440.8403.7
Run VMG1568.61078.0837.4702.7615.6557.8519.8473.2437.1
Selected Courses
Windward / Leeward1554.81097.0875.7752.9675.5628.9603.0575.7560.6
All purpose1175.0843.7686.8603.9556.4528.0510.4487.1471.8
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward710.50.8445
All purpose579.61.0353
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance631.50.9501
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1652.41095.1823.6679.4592.9547.5516.7468.4450.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7456
Downwind "popa"0.8778
70% up, 30% down "Ilhabela"0.7809
30% up, 70% down "Ilhabela-inverso"0.8335
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Predominantly Upwind624.80.9604
Predominantly Downwind594.41.0094
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low765.30.7840
Triple Number AP Medium576.11.0415
Triple Number AP High506.11.1856
Triple Number Windward/Leeward Low1031.10.5819
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Single Number Predominant Upwind650.80.9219
Single Number Predominant Reaching580.81.0330
Single Number Predominant Downwind622.00.9647
Predominant Upwind - Low923.40.6498
Predominant Upwind - Low/Med695.90.8622
Predominant Upwind - Medium601.50.9975
Predominant Upwind - Med/High552.71.0855
Predominant Upwind - High534.71.1220
Predominant Downwind Low933.20.6429
Predominant Downwind Low/Med680.00.8823
Predominant Downwind Medium570.41.0519
Predominant Downwind Med/High504.71.1888
Predominant Downwind High469.21.2789
Predominant Reaching Low825.50.7269
Predominant Reaching Low/Med622.40.9640
Predominant Reaching Medium539.01.1131
Predominant Reaching Med/High492.21.2190
Predominant Reaching High465.71.2884
SA/DSPL Upwind20.55SA/DSPL Downwind32.78
Scoring OptionTODTOT
5-Band Windward/Leeward Low1156.50.5188
5-Band Windward/Leeward Low/Med835.40.7182
5-Band Windward/Leeward Medium691.20.8680
5-Band Windward/Leeward Med/High608.80.9855
5-Band Windward/Leeward High577.81.0384
Windward/Leeward 60-40 Low1159.70.5174
Windward/Leeward 60-40 Low/Med844.00.7109
Windward/Leeward 60-40 Medium703.30.8531
Windward/Leeward 60-40 Med/High625.30.9595
Windward/Leeward 60-40 High598.41.0028
5-Band AP Low849.60.7063
5-Band AP Low/Med661.50.9071
5-Band AP Medium566.61.0590
5-Band AP Med/High513.31.1689
5-Band AP High488.51.2283
5-Band SF Bay Tour - Low994.80.6031
5-Band SF Bay Tour - Low/Med799.20.7508
5-Band SF Bay Tour - Medium668.00.8982
5-Band SF Bay Tour - Med/High595.21.0080
5-Band SF Bay Tour - High567.01.0582
Chicago-Mac Upwind0.8893
Chicago-Mac All Purpose0.9115
Chicago-Mac Downwind0.9272
Bayview-Mac Cove Island0.6562
Bayview-Mac Shore0.6614
Harvest Moon Regatta504.71.1888
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance631.50.9501
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1652.41095.1823.6679.4592.9547.5516.7468.4450.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance631.50.9501
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1652.41095.1823.6679.4592.9547.5516.7468.4450.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance631.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1652.41095.1823.6679.4592.9547.5516.7468.4450.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating631.50.9501
FinRating, kevyt tuuli1136.80.8797
FinRating, kova tuuli491.81.0167
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9501
Triple Number Coastal/Long Distance Low0.7840
Triple Number Coastal/Long Distance Medium1.0417
Triple Number Coastal/Long Distance High1.1856
Triple Number Windward/Leeward Low0.6083
Triple Number Windward/Leeward Medium0.8495
Triple Number Windward/Leeward High1.0013
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1652.41095.1823.6679.4592.9547.5516.7468.4450.2
For information
General Purpose Handicap (GPH)654.8
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance631.50.9501
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1652.41095.1823.6679.4592.9547.5516.7468.4450.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance631.50.9501
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1652.41095.1823.6679.4592.9547.5516.7468.4450.2
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance631.50.9501
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1652.41095.1823.6679.4592.9547.5516.7468.4450.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low765.3
Triple Number Coastal/Long Distance Medium576.0
Triple Number Coastal/Long Distance High506.1
Triple Number Windward/Leeward Low986.4
Triple Number Windward/Leeward Medium706.3
Triple Number Windward/Leeward High599.2
Predominantly Upwind624.8
Predominantly Downwind594.4
Predominantly Reaching569.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance631.50.9501
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1652.41095.1823.6679.4592.9547.5516.7468.4450.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7840
Triple Number Coastal/Long Distance Medium1.0417
Triple Number Coastal/Long Distance High1.1856
Triple Number Windward/Leeward Low0.6083
Triple Number Windward/Leeward Medium0.8495
Triple Number Windward/Leeward High1.0013
Coastal/Long Distance0.9501
Predominantly Upwind0.9604
Predominantly Downwind1.0094
For information
General Purpose Handicap (GPH)654.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0353
Distanseseilas Trippeltall svak vind0.7840
Distanseseilas Trippeltall mellomvind1.0417
Distanseseilas Trippeltall sterk vind1.1856
Pølsebane Trippeltall svak vind0.6083
Pølsebane Trippeltall mellomvind0.8495
Pølsebane Trippeltall sterk vind1.0013
Motvind Singeltall0.9604
Medvind Singeltall1.0094
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Coastal/Long Distance631.50.9501
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind624.80.9604
Predominantly Downwind594.41.0094
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore565.11.0617
Cape Doctor Coastal476.41.2595
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7840
Triple Number Coastal/Long Distance Medium1.0417
Triple Number Coastal/Long Distance High1.1856
Triple Number Windward/Leeward Low0.6083
Triple Number Windward/Leeward Medium0.8495
Triple Number Windward/Leeward High1.0013
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7840
Triple Number Coastal/Long Distance Medium1.0417
Triple Number Coastal/Long Distance High1.1856
Triple Number Windward/Leeward Low0.6083
Triple Number Windward/Leeward Medium0.8495
Triple Number Windward/Leeward High1.0013
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance631.50.9501
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Predominantly Upwind624.80.9604
Predominantly Downwind594.41.0094
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1652.41095.1823.6679.4592.9547.5516.7468.4450.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance631.50.9501
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium576.01.0417
Triple Number Coastal/Long Distance High506.11.1856
Triple Number Windward/Leeward Low986.40.6083
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1652.41095.1823.6679.4592.9547.5516.7468.4450.2
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low765.30.7840
Triple Number AP Medium576.11.0415
Triple Number AP High506.11.1856
Triple Number Windward/Leeward Low1031.10.5819
Triple Number Windward/Leeward Medium706.30.8495
Triple Number Windward/Leeward High599.21.0013
Single Number Predominant Upwind650.80.9219
Single Number Predominant Reaching580.81.0330
Single Number Predominant Downwind622.00.9647
Predominant Upwind - Low923.40.6498
Predominant Upwind - Low/Med695.90.8622
Predominant Upwind - Medium601.50.9975
Predominant Upwind - Med/High552.71.0855
Predominant Upwind - High534.71.1220
Predominant Downwind Low933.20.6429
Predominant Downwind Low/Med680.00.8823
Predominant Downwind Medium570.41.0519
Predominant Downwind Med/High504.71.1888
Predominant Downwind High469.21.2789
Predominant Reaching Low825.50.7269
Predominant Reaching Low/Med622.40.9640
Predominant Reaching Medium539.01.1131
Predominant Reaching Med/High492.21.2190
Predominant Reaching High465.71.2884
SA/DSPL Upwind20.55SA/DSPL Downwind32.78
Scoring OptionTODTOT
5-Band Windward/Leeward Low1156.50.5188
5-Band Windward/Leeward Low/Med835.40.7182
5-Band Windward/Leeward Medium691.20.8680
5-Band Windward/Leeward Med/High608.80.9855
5-Band Windward/Leeward High577.81.0384
Windward/Leeward 60-40 Low1159.70.5174
Windward/Leeward 60-40 Low/Med844.00.7109
Windward/Leeward 60-40 Medium703.30.8531
Windward/Leeward 60-40 Med/High625.30.9595
Windward/Leeward 60-40 High598.41.0028
5-Band AP Low849.60.7063
5-Band AP Low/Med661.50.9071
5-Band AP Medium566.61.0590
5-Band AP Med/High513.31.1689
5-Band AP High488.51.2283
5-Band SF Bay Tour - Low994.80.6031
5-Band SF Bay Tour - Low/Med799.20.7508
5-Band SF Bay Tour - Medium668.00.8982
5-Band SF Bay Tour - Med/High595.21.0080
5-Band SF Bay Tour - High567.01.0582
Chicago-Mac Upwind0.8893
Chicago-Mac All Purpose0.9115
Chicago-Mac Downwind0.9272
Bayview-Mac Cove Island0.6562
Bayview-Mac Shore0.6614
Harvest Moon Regatta504.71.1888
Club Certificate2025
SlipfreeFIN11819
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDufour 34MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.280Max. Beam3.482Draft1.941Displacement5,500Wetted area24.07IMS L9.555LSM09.344Acc. length10.300Sink (kg/mm) 18.56
VCGD0.028VCGM0.044RM Rated (kg·m) 121.9Limit of positive stability(°) N/AStability IndexN/ADefault crew weight625Declared crew weight915
PROPELLER
Propeller TypeFolding 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.400PBWPIPA0.0041
EDL2.000ST10.065ST20.180
ST30.180ST40.110ST50.350
RIG
Forestay tensionFixedInner stayFixedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P11.820IG13.230ISP13.180MDT10.125MDL10.198MDT2MDL2TLMWGO
E4.500J3.740BAS1.430FSDSFJSPL3.750WPLTPS3.740BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date26/02/2020
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
SlipfreeFIN11819
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20.200.981.732.863.7531.6115/06/2022
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20.081.272.585.2612.47NoNo 32.7730.070.611.182.433.795.2312.58NoNo 31.7115/06/2022
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment112.9512.9512.956.5571.12
CRUISER/RACER REQUIREMENTS*
Accommodation length10.3 mTable area0.44 m²Headroom1.72 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity86 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity56 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.