Club Certificate2025
ALESTA YELKENTUR 4666
Turkiye
Sailing
Federation
www.tyf.org.tr/
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 Angles42.7°42.7°40.9°38.3°36.3°35.7°35.6°36.0°37.5°
Beat VMG2.333.213.904.374.644.754.804.814.72
52°3.594.845.706.136.356.516.596.676.66
60°3.835.075.876.266.516.716.836.956.98
75°3.985.215.956.356.686.977.207.477.62
90°3.995.306.146.556.817.067.428.058.50
110°4.055.366.206.737.217.648.018.699.36
120°3.895.216.096.617.167.758.369.5310.69
135°3.374.695.726.306.797.338.0010.1412.99
150°2.743.945.015.856.386.847.348.7311.78
Run VMG2.383.424.345.125.746.206.627.5910.20
Gybe Angles145.6°145.6°150.3°155.7°164.2°170.0°169.6°158.6°144.2°
APH ToD:603.7CDL: 7.250APH ToT: 0.9939CertNo:
BOAT
ClassPLATU 25 ODDesignerFARRBuilderBENETEAUAge date01/2013Series date01/1997Offset fileplatu25-TUR4666.offData fileTUR1666
HULL
Length Overall7.530 mMaximum Beam2.580 mDraft1.597 mDisplacement1,285 kgDLR4.3679IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight440 kg(declared)Minimum weight310 kg ✱ when appliedNon Manual PowerNoCrew Arm ExtensionLoose or no lifelines
SAIL AREAS (m²)
MeasuredRatedMainsail18.6319.07Headsail Luffed11.9111.91Headsail FlyingSymmetric44.0744.07Asymmetric
STORM SAIL AREAS (m²)
Trysail5.52Storm Jib4.24Heavy Weather Jib11.45
SAIL LIMITS
Headsails5
✱ Woven polyester sails
Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
OUTBOARD ENGINE MERCURY 6
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
ALESTA YELKENTUR 4666
Turkiye
Sailing
Federation
www.tyf.org.tr/
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 VMG1547.81121.9923.3823.1775.5757.9749.7748.3762.1
52°1002.3743.4631.3587.8566.5553.4546.4539.9540.7
60°940.0709.6613.8575.5553.3536.8527.5518.1515.9
75°904.7690.9604.6566.9538.6516.3499.9481.7472.4
90°902.1679.4586.3549.7528.5509.9485.3447.4423.6
110°888.3671.8580.4535.3499.5471.5449.4414.4384.8
120°925.0691.5591.1544.5502.4464.5430.5377.7336.6
135°1067.7766.8629.6571.2530.3491.2449.8355.0277.2
150°1312.7912.8718.0615.4564.3526.5490.5412.6305.5
Run VMG1514.71054.0828.9703.4627.4580.2544.1474.0352.8
Selected Courses
Windward / Leeward1530.21087.9876.1763.3701.4669.0646.9611.1557.4
All purpose1153.8840.3696.5626.6586.2559.8538.2501.7465.9
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward734.10.8173
All purpose603.70.9939
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance653.50.9182
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1618.51084.5826.3696.3622.6579.9542.3476.9439.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7119
Downwind "popa"0.8728
70% up, 30% down "Ilhabela"0.7536
30% up, 70% down "Ilhabela-inverso"0.8174
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Predominantly Upwind655.40.9155
Predominantly Downwind609.70.9841
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low768.40.7808
Triple Number AP Medium602.30.9962
Triple Number AP High529.91.1322
Triple Number Windward/Leeward Low1025.70.5850
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Single Number Predominant Upwind680.10.8823
Single Number Predominant Reaching599.11.0015
Single Number Predominant Downwind631.80.9497
Predominant Upwind - Low927.10.6472
Predominant Upwind - Low/Med715.70.8383
Predominant Upwind - Medium636.70.9423
Predominant Upwind - Med/High593.21.0114
Predominant Upwind - High568.41.0557
Predominant Downwind Low917.60.6539
Predominant Downwind Low/Med688.10.8720
Predominant Downwind Medium592.01.0135
Predominant Downwind Med/High520.21.1534
Predominant Downwind High457.61.3111
Predominant Reaching Low820.40.7313
Predominant Reaching Low/Med638.70.9393
Predominant Reaching Medium567.91.0565
Predominant Reaching Med/High512.81.1700
Predominant Reaching High465.91.2879
SA/DSPL Upwind25.81SA/DSPL Downwind52.99
Scoring OptionTODTOT
5-Band Windward/Leeward Low1145.80.5236
5-Band Windward/Leeward Low/Med841.70.7128
5-Band Windward/Leeward Medium716.30.8376
5-Band Windward/Leeward Med/High649.20.9243
5-Band Windward/Leeward High608.00.9868
Windward/Leeward 60-40 Low1152.40.5207
Windward/Leeward 60-40 Low/Med852.50.7038
Windward/Leeward 60-40 Medium731.20.8206
Windward/Leeward 60-40 Med/High669.90.8956
Windward/Leeward 60-40 High636.60.9425
5-Band AP Low844.90.7101
5-Band AP Low/Med676.70.8866
5-Band AP Medium593.71.0107
5-Band AP Med/High539.71.1117
5-Band AP High501.81.1956
5-Band SF Bay Tour - Low988.60.6069
5-Band SF Bay Tour - Low/Med807.50.7430
5-Band SF Bay Tour - Medium694.20.8643
5-Band SF Bay Tour - Med/High631.10.9507
5-Band SF Bay Tour - High591.01.0153
Chicago-Mac Upwind0.8562
Chicago-Mac All Purpose0.8872
Chicago-Mac Downwind0.9137
Bayview-Mac Cove Island0.6545
Bayview-Mac Shore0.6591
Harvest Moon Regatta520.21.1534
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance653.50.9182
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1618.51084.5826.3696.3622.6579.9542.3476.9439.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance653.50.9182
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1618.51084.5826.3696.3622.6579.9542.3476.9439.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance653.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1618.51084.5826.3696.3622.6579.9542.3476.9439.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating653.50.9182
FinRating, kevyt tuuli1124.90.8889
FinRating, kova tuuli500.40.9993
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9182
Triple Number Coastal/Long Distance Low0.7808
Triple Number Coastal/Long Distance Medium0.9963
Triple Number Coastal/Long Distance High1.1322
Triple Number Windward/Leeward Low0.6110
Triple Number Windward/Leeward Medium0.8236
Triple Number Windward/Leeward High0.9389
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1618.51084.5826.3696.3622.6579.9542.3476.9439.9
For information
General Purpose Handicap (GPH)676.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance653.50.9182
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1618.51084.5826.3696.3622.6579.9542.3476.9439.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance653.50.9182
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1618.51084.5826.3696.3622.6579.9542.3476.9439.9
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance653.50.9182
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1618.51084.5826.3696.3622.6579.9542.3476.9439.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low768.4
Triple Number Coastal/Long Distance Medium602.2
Triple Number Coastal/Long Distance High529.9
Triple Number Windward/Leeward Low982.0
Triple Number Windward/Leeward Medium728.5
Triple Number Windward/Leeward High639.0
Predominantly Upwind655.4
Predominantly Downwind609.7
Predominantly Reaching588.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance653.50.9182
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1618.51084.5826.3696.3622.6579.9542.3476.9439.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7808
Triple Number Coastal/Long Distance Medium0.9963
Triple Number Coastal/Long Distance High1.1322
Triple Number Windward/Leeward Low0.6110
Triple Number Windward/Leeward Medium0.8236
Triple Number Windward/Leeward High0.9389
Coastal/Long Distance0.9182
Predominantly Upwind0.9155
Predominantly Downwind0.9841
For information
General Purpose Handicap (GPH)676.2
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9939
Distanseseilas Trippeltall svak vind0.7808
Distanseseilas Trippeltall mellomvind0.9963
Distanseseilas Trippeltall sterk vind1.1322
Pølsebane Trippeltall svak vind0.6110
Pølsebane Trippeltall mellomvind0.8236
Pølsebane Trippeltall sterk vind0.9389
Motvind Singeltall0.9155
Medvind Singeltall0.9841
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Coastal/Long Distance653.50.9182
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind655.40.9155
Predominantly Downwind609.70.9841
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore573.51.0461
Cape Doctor Coastal476.61.2588
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7808
Triple Number Coastal/Long Distance Medium0.9963
Triple Number Coastal/Long Distance High1.1322
Triple Number Windward/Leeward Low0.6110
Triple Number Windward/Leeward Medium0.8236
Triple Number Windward/Leeward High0.9389
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7808
Triple Number Coastal/Long Distance Medium0.9963
Triple Number Coastal/Long Distance High1.1322
Triple Number Windward/Leeward Low0.6110
Triple Number Windward/Leeward Medium0.8236
Triple Number Windward/Leeward High0.9389
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance653.50.9182
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Predominantly Upwind655.40.9155
Predominantly Downwind609.70.9841
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1618.51084.5826.3696.3622.6579.9542.3476.9439.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance653.50.9182
Triple Number Coastal/Long Distance Low768.40.7808
Triple Number Coastal/Long Distance Medium602.20.9963
Triple Number Coastal/Long Distance High529.91.1322
Triple Number Windward/Leeward Low982.00.6110
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1618.51084.5826.3696.3622.6579.9542.3476.9439.9
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low768.40.7808
Triple Number AP Medium602.30.9962
Triple Number AP High529.91.1322
Triple Number Windward/Leeward Low1025.70.5850
Triple Number Windward/Leeward Medium728.50.8236
Triple Number Windward/Leeward High639.00.9389
Single Number Predominant Upwind680.10.8823
Single Number Predominant Reaching599.11.0015
Single Number Predominant Downwind631.80.9497
Predominant Upwind - Low927.10.6472
Predominant Upwind - Low/Med715.70.8383
Predominant Upwind - Medium636.70.9423
Predominant Upwind - Med/High593.21.0114
Predominant Upwind - High568.41.0557
Predominant Downwind Low917.60.6539
Predominant Downwind Low/Med688.10.8720
Predominant Downwind Medium592.01.0135
Predominant Downwind Med/High520.21.1534
Predominant Downwind High457.61.3111
Predominant Reaching Low820.40.7313
Predominant Reaching Low/Med638.70.9393
Predominant Reaching Medium567.91.0565
Predominant Reaching Med/High512.81.1700
Predominant Reaching High465.91.2879
SA/DSPL Upwind25.81SA/DSPL Downwind52.99
Scoring OptionTODTOT
5-Band Windward/Leeward Low1145.80.5236
5-Band Windward/Leeward Low/Med841.70.7128
5-Band Windward/Leeward Medium716.30.8376
5-Band Windward/Leeward Med/High649.20.9243
5-Band Windward/Leeward High608.00.9868
Windward/Leeward 60-40 Low1152.40.5207
Windward/Leeward 60-40 Low/Med852.50.7038
Windward/Leeward 60-40 Medium731.20.8206
Windward/Leeward 60-40 Med/High669.90.8956
Windward/Leeward 60-40 High636.60.9425
5-Band AP Low844.90.7101
5-Band AP Low/Med676.70.8866
5-Band AP Medium593.71.0107
5-Band AP Med/High539.71.1117
5-Band AP High501.81.1956
5-Band SF Bay Tour - Low988.60.6069
5-Band SF Bay Tour - Low/Med807.50.7430
5-Band SF Bay Tour - Medium694.20.8643
5-Band SF Bay Tour - Med/High631.10.9507
5-Band SF Bay Tour - High591.01.0153
Chicago-Mac Upwind0.8562
Chicago-Mac All Purpose0.8872
Chicago-Mac Downwind0.9137
Bayview-Mac Cove Island0.6545
Bayview-Mac Shore0.6591
Harvest Moon Regatta520.21.1534
Club Certificate2025
ALESTA YELKENTUR 4666
Turkiye
Sailing
Federation
www.tyf.org.tr/
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassPLATU 25 ODMeasurement17/06/2025HINPlan reviewHull constructionCoredCarbon rudderYesLight stanchionsNoTrim tabNo
LOA7.530Max. Beam2.580Draft1.597Displacement1,285Wetted area10.69IMS L7.085LSM06.651Acc. length7.530Sink (kg/mm) 7.81
VCGD-0.246VCGM-0.251RM Rated (kg·m) 23.2Limit of positive stability(°) N/AStability IndexN/ADefault crew weight385Declared crew weight440
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P9.000IG9.171ISP9.530MDT10.079MDL10.120MDT20.062MDL20.078TL2.340MW0.121GO0.131
E3.500J2.580BAS1.210FSD0.000SFJ0.000SPL3.430WPLTPSBD0.120MWT35.50MCG4.200
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date20/06/2025MeasurerTUR01 BECommentPerfect conditions
SFFP0.120FFM0.922FF0.924LCFcl4.253SG1.0170
SAFP7.315FAM0.663FA0.664LCFsh4.432HBI0.835
BALLAST
TANKS
INVENTORY
IdDescriptionWeight SailingLCGVCGGAIdDescriptionWeight SailingLCGVCGGAEngMercury 6 Hp TCG: 0,30 prt7.500.25   
INVENTORY
Fixed Ballast Total0
Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGEngEngineMercury 6 Hp TCG: 0,30 prt257.500.25Total deductible0
Club Certificate2025
ALESTA YELKENTUR 4666
Turkiye
Sailing
Federation
www.tyf.org.tr/
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM-10.140.721.302.222.9418.6317/06/2025
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ-20.070.400.761.422.062.648.57YesNo 11.9117/06/2025J-30.080.380.731.382.002.608.17NoNo 11.0617/06/2025
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS-29.579.579.575.615.1944.0710/03/2019WHITE