Club Certificate2025
TshaikaEST F66
Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
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 Angles43.9°43.9°41.5°40.7°41.0°41.3°41.6°42.5°43.8°
Beat VMG1.852.533.053.383.543.613.653.663.58
52°2.903.874.554.995.235.345.405.465.44
60°3.084.084.755.195.435.555.625.695.70
75°3.174.224.935.375.635.795.896.006.05
90°3.284.405.185.615.855.976.066.266.40
110°3.204.345.165.635.936.186.386.656.83
120°3.024.145.005.545.876.146.406.857.15
135°2.623.664.545.275.685.986.256.807.39
150°2.223.194.074.825.405.756.036.567.14
Run VMG1.902.763.564.254.895.375.716.236.73
Gybe Angles151.1°151.1°157.7°162.7°167.4°177.2°179.0°179.2°179.1°
APH ToD:746.2CDL: 5.130APH ToT: 0.8041CertNo:002/21
BOAT
ClassFOLKBOATDesignerBuilderSETAge date01/1972Series date01/1941Offset fileG1746.OFFData fileESTF66
HULL
Length Overall7.680 mMaximum Beam2.210 mDraft1.149 mDisplacement2,030 kgDLR10.7451IMS DivisionPerformanceDynamic Allowance0.600%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight200 kg(declared)Minimum weight130 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension0.25 m
SAIL AREAS (m²)
MeasuredRatedMainsail18.7919.60Headsail Luffed7.907.90Headsail FlyingSymmetric23.9423.94Asymmetric
STORM SAIL AREAS (m²)
Trysail5.18Storm Jib2.12Heavy Weather Jib5.71
SAIL LIMITS
Headsails5
✱ Woven polyester sails
Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
Outboard engine should be carried on transom while racing.
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.
ORC Ref  04340003TOIIssued on 08/06/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
TshaikaEST F66
Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
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 VMG1947.91421.51179.91064.71016.2997.2986.6982.91004.3
52°1240.2929.2792.0721.2688.7674.5666.3659.2661.5
60°1170.7882.6757.6693.3662.9648.2640.5632.4631.1
75°1137.1853.6730.4669.9639.2622.0611.3599.9594.6
90°1098.2817.6695.2641.4615.9603.2594.1574.8562.9
110°1123.8829.3698.2639.2606.9582.8564.0541.4527.3
120°1193.7869.2720.4650.0613.2585.9562.7525.8503.4
135°1375.5983.8793.0683.8633.7602.3575.8529.6486.8
150°1625.31128.7885.0747.3667.0625.9597.2549.1504.1
Run VMG1897.41302.51011.5847.6736.2670.4630.1578.2535.0
Selected Courses
Windward / Leeward1919.61362.01095.7956.2876.2833.8808.3780.5769.7
All purpose1448.21049.0862.7767.7718.4692.0674.5651.3639.2
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward918.40.6533
All purpose746.20.8041
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance811.50.7394
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2030.01356.01029.5862.9768.4718.4679.7615.5600.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.5491
Downwind "popa"0.7271
70% up, 30% down "Ilhabela"0.5926
30% up, 70% down "Ilhabela-inverso"0.6627
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Predominantly Upwind818.70.7329
Predominantly Downwind742.90.8076
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low955.90.6277
Triple Number AP Medium740.30.8104
Triple Number AP High670.20.8953
Triple Number Windward/Leeward Low1284.30.4672
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Single Number Predominant Upwind851.70.7045
Single Number Predominant Reaching736.70.8145
Single Number Predominant Downwind777.90.7713
Predominant Upwind - Low1161.00.5168
Predominant Upwind - Low/Med893.10.6718
Predominant Upwind - Medium792.80.7568
Predominant Upwind - Med/High747.70.8024
Predominant Upwind - High731.70.8200
Predominant Downwind Low1147.70.5228
Predominant Downwind Low/Med843.30.7115
Predominant Downwind Medium714.70.8395
Predominant Downwind Med/High642.00.9345
Predominant Downwind High603.90.9936
Predominant Reaching Low1020.00.5882
Predominant Reaching Low/Med779.40.7698
Predominant Reaching Medium686.20.8743
Predominant Reaching Med/High638.00.9405
Predominant Reaching High611.70.9809
SA/DSPL Upwind16.61SA/DSPL Downwind26.59
Scoring OptionTODTOT
5-Band Windward/Leeward Low1435.60.4180
5-Band Windward/Leeward Low/Med1053.30.5696
5-Band Windward/Leeward Medium895.10.6703
5-Band Windward/Leeward Med/High813.70.7374
5-Band Windward/Leeward High783.50.7658
Windward/Leeward 60-40 Low1447.00.4147
Windward/Leeward 60-40 Low/Med1072.80.5593
Windward/Leeward 60-40 Medium922.50.6504
Windward/Leeward 60-40 Med/High849.00.7067
Windward/Leeward 60-40 High824.20.7280
5-Band AP Low1052.70.5699
5-Band AP Low/Med835.30.7183
5-Band AP Medium730.50.8213
5-Band AP Med/High677.20.8860
5-Band AP High653.20.9185
5-Band SF Bay Tour - Low1241.60.4833
5-Band SF Bay Tour - Low/Med1013.30.5921
5-Band SF Bay Tour - Medium871.80.6883
5-Band SF Bay Tour - Med/High801.30.7488
5-Band SF Bay Tour - High773.90.7753
Chicago-Mac Upwind0.6839
Chicago-Mac All Purpose0.7164
Chicago-Mac Downwind0.7442
Bayview-Mac Cove Island0.5231
Bayview-Mac Shore0.5272
Harvest Moon Regatta638.90.9391
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance811.50.7394
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2030.01356.01029.5862.9768.4718.4679.7615.5600.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance811.50.7394
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2030.01356.01029.5862.9768.4718.4679.7615.5600.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance811.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2030.01356.01029.5862.9768.4718.4679.7615.5600.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating811.50.7394
FinRating, kevyt tuuli1407.50.7105
FinRating, kova tuuli655.90.7623
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7394
Triple Number Coastal/Long Distance Low0.6277
Triple Number Coastal/Long Distance Medium0.8105
Triple Number Coastal/Long Distance High0.8953
Triple Number Windward/Leeward Low0.4883
Triple Number Windward/Leeward Medium0.6589
Triple Number Windward/Leeward High0.7460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2030.01356.01029.5862.9768.4718.4679.7615.5600.6
For information
General Purpose Handicap (GPH)836.7
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance811.50.7394
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2030.01356.01029.5862.9768.4718.4679.7615.5600.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance811.50.7394
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2030.01356.01029.5862.9768.4718.4679.7615.5600.6
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance811.50.7394
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2030.01356.01029.5862.9768.4718.4679.7615.5600.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low955.9
Triple Number Coastal/Long Distance Medium740.3
Triple Number Coastal/Long Distance High670.2
Triple Number Windward/Leeward Low1228.8
Triple Number Windward/Leeward Medium910.6
Triple Number Windward/Leeward High804.3
Predominantly Upwind818.7
Predominantly Downwind742.9
Predominantly Reaching716.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance811.50.7394
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2030.01356.01029.5862.9768.4718.4679.7615.5600.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6277
Triple Number Coastal/Long Distance Medium0.8105
Triple Number Coastal/Long Distance High0.8953
Triple Number Windward/Leeward Low0.4883
Triple Number Windward/Leeward Medium0.6589
Triple Number Windward/Leeward High0.7460
Coastal/Long Distance0.7394
Predominantly Upwind0.7329
Predominantly Downwind0.8076
For information
General Purpose Handicap (GPH)836.7
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8041
Distanseseilas Trippeltall svak vind0.6277
Distanseseilas Trippeltall mellomvind0.8105
Distanseseilas Trippeltall sterk vind0.8953
Pølsebane Trippeltall svak vind0.4883
Pølsebane Trippeltall mellomvind0.6589
Pølsebane Trippeltall sterk vind0.7460
Motvind Singeltall0.7329
Medvind Singeltall0.8076
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Coastal/Long Distance811.50.7394
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind818.70.7329
Predominantly Downwind742.90.8076
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore772.90.7763
Cape Doctor Coastal642.80.9334
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6277
Triple Number Coastal/Long Distance Medium0.8105
Triple Number Coastal/Long Distance High0.8953
Triple Number Windward/Leeward Low0.4883
Triple Number Windward/Leeward Medium0.6589
Triple Number Windward/Leeward High0.7460
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6277
Triple Number Coastal/Long Distance Medium0.8105
Triple Number Coastal/Long Distance High0.8953
Triple Number Windward/Leeward Low0.4883
Triple Number Windward/Leeward Medium0.6589
Triple Number Windward/Leeward High0.7460
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance811.50.7394
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Predominantly Upwind818.70.7329
Predominantly Downwind742.90.8076
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2030.01356.01029.5862.9768.4718.4679.7615.5600.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance811.50.7394
Triple Number Coastal/Long Distance Low955.90.6277
Triple Number Coastal/Long Distance Medium740.30.8105
Triple Number Coastal/Long Distance High670.20.8953
Triple Number Windward/Leeward Low1228.80.4883
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2030.01356.01029.5862.9768.4718.4679.7615.5600.6
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low955.90.6277
Triple Number AP Medium740.30.8104
Triple Number AP High670.20.8953
Triple Number Windward/Leeward Low1284.30.4672
Triple Number Windward/Leeward Medium910.60.6589
Triple Number Windward/Leeward High804.30.7460
Single Number Predominant Upwind851.70.7045
Single Number Predominant Reaching736.70.8145
Single Number Predominant Downwind777.90.7713
Predominant Upwind - Low1161.00.5168
Predominant Upwind - Low/Med893.10.6718
Predominant Upwind - Medium792.80.7568
Predominant Upwind - Med/High747.70.8024
Predominant Upwind - High731.70.8200
Predominant Downwind Low1147.70.5228
Predominant Downwind Low/Med843.30.7115
Predominant Downwind Medium714.70.8395
Predominant Downwind Med/High642.00.9345
Predominant Downwind High603.90.9936
Predominant Reaching Low1020.00.5882
Predominant Reaching Low/Med779.40.7698
Predominant Reaching Medium686.20.8743
Predominant Reaching Med/High638.00.9405
Predominant Reaching High611.70.9809
SA/DSPL Upwind16.61SA/DSPL Downwind26.59
Scoring OptionTODTOT
5-Band Windward/Leeward Low1435.60.4180
5-Band Windward/Leeward Low/Med1053.30.5696
5-Band Windward/Leeward Medium895.10.6703
5-Band Windward/Leeward Med/High813.70.7374
5-Band Windward/Leeward High783.50.7658
Windward/Leeward 60-40 Low1447.00.4147
Windward/Leeward 60-40 Low/Med1072.80.5593
Windward/Leeward 60-40 Medium922.50.6504
Windward/Leeward 60-40 Med/High849.00.7067
Windward/Leeward 60-40 High824.20.7280
5-Band AP Low1052.70.5699
5-Band AP Low/Med835.30.7183
5-Band AP Medium730.50.8213
5-Band AP Med/High677.20.8860
5-Band AP High653.20.9185
5-Band SF Bay Tour - Low1241.60.4833
5-Band SF Bay Tour - Low/Med1013.30.5921
5-Band SF Bay Tour - Medium871.80.6883
5-Band SF Bay Tour - Med/High801.30.7488
5-Band SF Bay Tour - High773.90.7753
Chicago-Mac Upwind0.6839
Chicago-Mac All Purpose0.7164
Chicago-Mac Downwind0.7442
Bayview-Mac Cove Island0.5231
Bayview-Mac Shore0.5272
Harvest Moon Regatta638.90.9391
ORC Ref  04340003TOIIssued on 08/06/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
TshaikaEST F66
Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFOLKBOATMeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA7.680Max. Beam2.210Draft1.149Displacement2,030Wetted area13.88IMS L5.942LSM05.737Acc. length7.183Sink (kg/mm) 7.42
VCGD-0.194VCGM-0.188RM Rated (kg·m) 20.5Limit of positive stability(°) N/AStability IndexN/ADefault crew weight312Declared crew weight200
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P8.750IG6.500ISP6.510MDT10.110MDL10.133MDT20.000MDL20.000TLTaperMW0.000GO0.000
E3.380J2.000BAS1.000FSDNo FoilSFJ0.830SPL2.050WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date23/05/2020
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04340003TOIIssued on 08/06/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
TshaikaEST F66
Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.150.881.552.362.9018.79
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.040.350.751.381.992.336.05NoNo 7.90
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment16.806.806.804.244.1623.94* Copied from legacy *
ORC Ref  04340003TOIIssued on 08/06/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org