Club
Certificate
2024

Boat

Slipfree

FIN11819

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 Angles44.2°42.0°40.5°39.0°38.3°37.9°38.1°39.1°
Beat VMG3.243.964.484.855.025.105.135.05
52°4.995.926.546.897.087.167.237.22
60°5.286.196.747.067.257.367.457.47
75°5.466.376.897.217.447.627.827.93
90°5.356.326.927.297.507.748.138.37
110°5.256.377.047.457.788.098.508.77
120°5.086.216.957.387.748.098.759.26
135°4.575.696.567.107.497.858.599.49
150°3.864.965.886.637.127.488.168.91
Run VMG3.344.295.115.826.426.947.638.27
Gybe Angles144.9°149.2°152.5°157.1°167.8°177.2°178.8°178.6°
APH ToD:582.1CDL: 8.799APH ToT: 1.0307CertNo:
BOAT
ClassDufour 34DesignerUmberto FelciBuilderDufour YachtAge dateSeries date07/2002Offset fileDUF34PERF.offData fileFIN11819
HULL
Length Overall10.280 mMaximum Beam3.482 mDraft1.941 mDisplacement5,500 kgDLR6.7665IMS DivisionCruiser/RacerDynamic Allowance0.340%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.400m
CREW
Maximum weight560 kg(declared)Minimum weight430 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
Headsails5  Spinnakers4
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
Certificate
2024

Boat

Slipfree

FIN11819

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 VMG1110.2909.7802.7742.1716.5705.7701.9713.0
52°721.3607.8550.6522.2508.4502.5498.1498.6
60°682.4582.0534.2509.9496.4489.1483.3482.0
75°659.6565.3522.3499.5483.9472.5460.1454.1
90°673.0570.0519.9494.0480.0465.3443.0430.2
110°685.8564.9511.1483.5462.5445.2423.8410.3
120°708.5579.7518.3487.7464.9445.0411.4388.7
135°787.7632.8549.2506.7480.9458.8418.9379.4
150°932.5726.5611.8543.3505.7481.6441.4404.2
Run VMG1076.8838.9705.0619.0560.4519.1471.9435.2
Selected Courses
Windward / Leeward1093.5874.3753.9680.5638.4612.4586.9574.1
All purpose839.9685.2604.6558.9533.1516.2495.1482.0
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward715.30.8388
All purpose582.11.0307
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance634.10.9463
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1091.8822.3680.2596.0553.2521.9473.8458.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7383
Downwind "popa"0.8767
70% up, 30% down "Ilhabela"0.7750
30% up, 70% down "Ilhabela-inverso"0.8300
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Predominantly Upwind628.00.9554
Predominantly Downwind595.21.0081
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low762.60.7868
Triple Number AP Medium578.31.0375
Triple Number AP High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Single Number Predominant Upwind626.70.9575
Single Number Predominant Reaching559.31.0727
Single Number Predominant Downwind595.81.0071
Predominant Upwind - Low839.20.7150
Predominant Upwind - Low/Med695.60.8626
Predominant Upwind - Medium605.50.9909
Predominant Upwind - Med/High561.31.0689
Predominant Upwind - High545.81.0994
Predominant Downwind Low842.30.7124
Predominant Downwind Low/Med679.40.8832
Predominant Downwind Medium572.11.0487
Predominant Downwind Med/High507.11.1832
Predominant Downwind High472.01.2712
Predominant Reaching Low749.70.8003
Predominant Reaching Low/Med621.70.9651
Predominant Reaching Medium541.21.1086
Predominant Reaching Med/High495.71.2103
Predominant Reaching High470.31.2757
SA/DSPL Upwind20.55SA/DSPL Downwind32.78
Scoring OptionTODTOT
5-Band Windward/Leeward Low1043.70.5749
5-Band Windward/Leeward Low/Med835.50.7181
5-Band Windward/Leeward Medium696.20.8618
5-Band Windward/Leeward Med/High618.20.9705
5-Band Windward/Leeward High589.11.0185
Windward/Leeward 60-40 Low1047.90.5726
Windward/Leeward 60-40 Low/Med843.80.7111
Windward/Leeward 60-40 Medium708.70.8466
Windward/Leeward 60-40 Med/High636.60.9426
Windward/Leeward 60-40 High612.20.9801
5-Band AP Low804.80.7455
5-Band AP Low/Med660.90.9078
5-Band AP Medium569.21.0542
5-Band AP Med/High519.11.1559
5-Band AP High496.51.2085
5-Band SF Bay Tour - Low991.20.6054
5-Band SF Bay Tour - Low/Med798.60.7513
5-Band SF Bay Tour - Medium672.40.8924
5-Band SF Bay Tour - Med/High604.60.9923
5-Band SF Bay Tour - High578.81.0367
Chicago-Mac Upwind0.9365
Chicago-Mac All Purpose0.9597
Chicago-Mac Downwind0.9893
Bayview-Mac Cove Island0.8877
Bayview-Mac Shore0.8980
Harvest Moon Regatta506.11.1855
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance634.10.9463
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1091.8822.3680.2596.0553.2521.9473.8458.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance634.10.9463
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1091.8822.3680.2596.0553.2521.9473.8458.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance634.1
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1091.8822.3680.2596.0553.2521.9473.8458.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)634.10.9463
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1091.8822.3680.2596.0553.2521.9473.8458.9
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7868
Triple Number Coastal/Long Distance Medium1.0377
Triple Number Coastal/Long Distance High1.1707
Triple Number Windward/Leeward Low0.6098
Triple Number Windward/Leeward Medium0.8444
Triple Number Windward/Leeward High0.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1091.8822.3680.2596.0553.2521.9473.8458.9
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance634.10.9463
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1091.8822.3680.2596.0553.2521.9473.8458.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance634.10.9463
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1091.8822.3680.2596.0553.2521.9473.8458.9
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance634.10.9463
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1091.8822.3680.2596.0553.2521.9473.8458.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low762.6
Triple Number Coastal/Long Distance Medium578.2
Triple Number Coastal/Long Distance High512.5
Triple Number Windward/Leeward Low983.9
Triple Number Windward/Leeward Medium710.6
Triple Number Windward/Leeward High609.3
Predominantly Upwind628.0
Predominantly Downwind595.2
Predominantly Reaching569.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance634.10.9463
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1091.8822.3680.2596.0553.2521.9473.8458.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7868
Triple Number Coastal/Long Distance Medium1.0377
Triple Number Coastal/Long Distance High1.1707
Triple Number Windward/Leeward Low0.6098
Triple Number Windward/Leeward Medium0.8444
Triple Number Windward/Leeward High0.9847
Coastal/Long Distance0.9463
Predominantly Upwind0.9554
Predominantly Downwind1.0081
For information
General Purpose Handicap (GPH)656.4
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7868
Tretall Distanseseilas Mellomvind1.0377
Tretall Distanseseilas Mye vind1.1707
Tretall Pølsebane Lite vind0.6098
Tretall Pølsebane Mellomvind0.8444
Tretall Pølsebane Mye vind0.9847
Distanseseilas ett tall1.0307
Enkeltall Motvind0.9554
Enkeltall Medvind1.0081
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Coastal/Long Distance634.10.9463
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind628.00.9554
Predominantly Downwind595.21.0081
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore577.91.0382
Cape Doctor Coastal485.91.2347
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7868
Triple Number Coastal/Long Distance Medium1.0377
Triple Number Coastal/Long Distance High1.1707
Triple Number Windward/Leeward Low0.6098
Triple Number Windward/Leeward Medium0.8444
Triple Number Windward/Leeward High0.9847
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7868
Triple Number Coastal/Long Distance Medium1.0377
Triple Number Coastal/Long Distance High1.1707
Triple Number Windward/Leeward Low0.6098
Triple Number Windward/Leeward Medium0.8444
Triple Number Windward/Leeward High0.9847
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance634.10.9463
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Predominantly Upwind628.00.9554
Predominantly Downwind595.21.0081
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1091.8822.3680.2596.0553.2521.9473.8458.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance634.10.9463
Triple Number Coastal/Long Distance Low762.60.7868
Triple Number Coastal/Long Distance Medium578.21.0377
Triple Number Coastal/Long Distance High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1091.8822.3680.2596.0553.2521.9473.8458.9
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low762.60.7868
Triple Number AP Medium578.31.0375
Triple Number AP High512.51.1707
Triple Number Windward/Leeward Low983.90.6098
Triple Number Windward/Leeward Medium710.60.8444
Triple Number Windward/Leeward High609.30.9847
Single Number Predominant Upwind626.70.9575
Single Number Predominant Reaching559.31.0727
Single Number Predominant Downwind595.81.0071
Predominant Upwind - Low839.20.7150
Predominant Upwind - Low/Med695.60.8626
Predominant Upwind - Medium605.50.9909
Predominant Upwind - Med/High561.31.0689
Predominant Upwind - High545.81.0994
Predominant Downwind Low842.30.7124
Predominant Downwind Low/Med679.40.8832
Predominant Downwind Medium572.11.0487
Predominant Downwind Med/High507.11.1832
Predominant Downwind High472.01.2712
Predominant Reaching Low749.70.8003
Predominant Reaching Low/Med621.70.9651
Predominant Reaching Medium541.21.1086
Predominant Reaching Med/High495.71.2103
Predominant Reaching High470.31.2757
SA/DSPL Upwind20.55SA/DSPL Downwind32.78
Scoring OptionTODTOT
5-Band Windward/Leeward Low1043.70.5749
5-Band Windward/Leeward Low/Med835.50.7181
5-Band Windward/Leeward Medium696.20.8618
5-Band Windward/Leeward Med/High618.20.9705
5-Band Windward/Leeward High589.11.0185
Windward/Leeward 60-40 Low1047.90.5726
Windward/Leeward 60-40 Low/Med843.80.7111
Windward/Leeward 60-40 Medium708.70.8466
Windward/Leeward 60-40 Med/High636.60.9426
Windward/Leeward 60-40 High612.20.9801
5-Band AP Low804.80.7455
5-Band AP Low/Med660.90.9078
5-Band AP Medium569.21.0542
5-Band AP Med/High519.11.1559
5-Band AP High496.51.2085
5-Band SF Bay Tour - Low991.20.6054
5-Band SF Bay Tour - Low/Med798.60.7513
5-Band SF Bay Tour - Medium672.40.8924
5-Band SF Bay Tour - Med/High604.60.9923
5-Band SF Bay Tour - High578.81.0367
Chicago-Mac Upwind0.9365
Chicago-Mac All Purpose0.9597
Chicago-Mac Downwind0.9893
Bayview-Mac Cove Island0.8877
Bayview-Mac Shore0.8980
Harvest Moon Regatta506.11.1855

Club
Certificate
2024

Boat

Slipfree

FIN11819

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 area24.09IMS L9.500LSM09.332Acc. length10.300Sink (kg/mm) 18.60
VCGD0.030VCGM0.046RM Rated (kg·m) 122.3Limit of positive stability(°) N/AStability IndexN/ADefault crew weight624Declared crew weight560
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 footNoRunners/Checkstays0Spreaders1Rotating 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
Certificate
2024

Boat

Slipfree

FIN11819

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 l
*This list refers to the calculated requirements. See IMS Appendix 1 for the complete list of requirements.