Club Certificate2025
LIBLEEST 991
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 Angles44.7°44.7°43.0°41.7°40.7°39.8°39.4°40.1°42.0°
Beat VMG1.912.663.263.694.024.224.314.324.20
52°3.014.114.955.505.856.056.156.206.17
60°3.224.365.195.716.036.226.336.406.41
75°3.354.525.365.896.196.406.556.736.79
90°3.354.605.556.106.416.606.716.977.16
110°3.344.595.546.126.486.777.027.477.79
120°3.184.405.366.016.406.727.027.608.35
135°2.713.854.855.676.176.516.827.458.26
150°2.283.334.295.135.816.236.547.137.78
Run VMG1.972.883.734.485.175.716.126.717.25
Gybe Angles149.2°149.2°153.2°156.4°162.8°170.0°177.7°178.6°178.6°
APH ToD:680.2CDL: 6.303APH ToT: 0.8821CertNo:
BOAT
ClassFinn Express 83DesignerEivind StillBuilderNykraAge date01/1981Series date01/1981Offset fileL5280.BOFData fileEST991
HULL
Length Overall8.319 mMaximum Beam2.794 mDraft1.430 mDisplacement2,403 kgDLR7.8272IMS DivisionCruiser/RacerDynamic Allowance0.380%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight330 kg(declared)Minimum weight200 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail18.8619.19Headsail Luffed14.0214.02Headsail FlyingSymmetric33.0933.09Asymmetric
STORM SAIL AREAS (m²)
Trysail5.82Storm Jib3.26Heavy Weather Jib8.80
SAIL LIMITS
Headsails5
✱ One set on the forestay
✱ Woven polyester sails
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.
ORC Ref  04340003VC2Issued on 07/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
LIBLEEST 991
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 VMG1882.91352.21102.9974.7896.2852.2835.6834.2857.4
52°1197.3875.2727.7654.9615.7595.0585.4580.8583.4
60°1119.1825.5693.4630.2597.4578.9568.9562.3561.9
75°1074.7796.2671.7611.7581.4562.3549.2535.2530.0
90°1074.9782.2649.1589.9561.5545.6536.4516.7502.6
110°1076.8783.8650.0588.1555.6531.6512.5481.8462.3
120°1133.1818.5671.8599.3562.8536.0513.1473.9431.1
135°1328.6934.8741.9634.4583.7553.0527.8483.2435.9
150°1576.31081.9838.5701.5620.1578.0550.2504.8462.7
Run VMG1828.31249.2965.1804.2695.7630.3588.2536.7496.2
Selected Courses
Windward / Leeward1853.81300.71034.0889.4796.0741.2711.9685.5676.8
All purpose1396.2996.8807.2708.6651.6618.4599.1576.0562.6
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward838.80.7153
All purpose680.20.8821
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance742.00.8086
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1967.41295.6969.8799.6696.4641.8605.3550.0530.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6133
Downwind "popa"0.7679
70% up, 30% down "Ilhabela"0.6527
30% up, 70% down "Ilhabela-inverso"0.7139
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Predominantly Upwind740.90.8098
Predominantly Downwind688.00.8721
Custom scoring options for Canada
Scoring OptionTODTOT
TriNum AP Low902.00.6652
TriNum AP Med675.40.8884
TriNum AP High595.31.0079
TriNum W/L Low1221.70.4911
TriNum W/L Med833.30.7200
TriNum W/L Hig709.30.8459
Predom. Upwind774.50.7747
Predom. Reaching678.00.8849
Predom. Downwind722.40.8305
Predom. Up Low1105.10.5429
Predom. Up L/M827.00.7255
Predom. Up Med713.30.8412
Predom. Up M/H656.40.9141
Predom. Up High640.00.9374
Predom. Dn Low1096.50.5472
Predom. Dn L/M790.60.7590
Predom. Dn Med658.90.9106
Predom. Dn M/H583.31.0287
Predom. Dn High545.21.1004
Predom. Rc Low973.20.6165
Predom. Rc L/M725.00.8275
Predom. Rc Med625.90.9587
Predom. Rc M/H573.21.0467
Predom. Rc High546.81.0973
SA/DSPL Upwind18.28SA/DSPL Downwind28.87
Scoring OptionTODTOT
5B W/L Low1372.70.4371
5B W/L L/M987.20.6078
5B W/L Med815.30.7360
5B W/L M/H719.40.8340
5B W/L High688.60.8714
W/L 60-40 Low1382.70.4339
W/L 60-40 L/M1002.50.5985
W/L 60-40 Med835.00.7185
W/L 60-40 M/H744.20.8063
W/L 60-40 High718.50.8350
5B AP Low1000.30.5998
5B AP L/M777.40.7718
5B AP Med664.10.9034
5B AP M/H602.90.9952
5B AP High577.71.0386
5B SF Bay Low1180.90.5081
5B SF Bay L/M946.50.6339
5B SF Bay Med790.40.7591
5B SF Bay M/H705.70.8503
5B SF Bay High677.70.8854
Chicago-Mac Upwind0.7470
Chicago-Mac All Purpose0.7756
Chicago-Mac Downwind0.7981
BayMac Cove Island1084.50.5533
BayMac Shore1076.20.5575
Harvest Moon584.31.0269
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance742.00.8086
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1967.41295.6969.8799.6696.4641.8605.3550.0530.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance742.00.8086
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1967.41295.6969.8799.6696.4641.8605.3550.0530.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance742.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1967.41295.6969.8799.6696.4641.8605.3550.0530.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating742.00.8086
FinRating, kevyt tuuli1347.20.7423
FinRating, kova tuuli580.90.8608
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8086
Triple Number Coastal/Long Distance Low0.6652
Triple Number Coastal/Long Distance Medium0.8885
Triple Number Coastal/Long Distance High1.0079
Triple Number Windward/Leeward Low0.5140
Triple Number Windward/Leeward Medium0.7200
Triple Number Windward/Leeward High0.8459
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1967.41295.6969.8799.6696.4641.8605.3550.0530.4
For information
General Purpose Handicap (GPH)769.3
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance742.00.8086
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1967.41295.6969.8799.6696.4641.8605.3550.0530.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance742.00.8086
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1967.41295.6969.8799.6696.4641.8605.3550.0530.4
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance742.00.8086
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1967.41295.6969.8799.6696.4641.8605.3550.0530.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low902.0
Triple Number Coastal/Long Distance Medium675.3
Triple Number Coastal/Long Distance High595.3
Triple Number Windward/Leeward Low1167.3
Triple Number Windward/Leeward Medium833.3
Triple Number Windward/Leeward High709.3
Predominantly Upwind740.9
Predominantly Downwind688.0
Predominantly Reaching659.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance742.00.8086
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1967.41295.6969.8799.6696.4641.8605.3550.0530.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6652
Triple Number Coastal/Long Distance Medium0.8885
Triple Number Coastal/Long Distance High1.0079
Triple Number Windward/Leeward Low0.5140
Triple Number Windward/Leeward Medium0.7200
Triple Number Windward/Leeward High0.8459
Coastal/Long Distance0.8086
Predominantly Upwind0.8098
Predominantly Downwind0.8721
For information
General Purpose Handicap (GPH)769.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8821
Distanseseilas Trippeltall svak vind0.6652
Distanseseilas Trippeltall mellomvind0.8885
Distanseseilas Trippeltall sterk vind1.0079
Pølsebane Trippeltall svak vind0.5140
Pølsebane Trippeltall mellomvind0.7200
Pølsebane Trippeltall sterk vind0.8459
Motvind Singeltall0.8098
Medvind Singeltall0.8721
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Coastal/Long Distance742.00.8086
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind740.90.8098
Predominantly Downwind688.00.8721
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore679.40.8831
Cape Doctor Coastal566.71.0588
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6652
Triple Number Coastal/Long Distance Medium0.8885
Triple Number Coastal/Long Distance High1.0079
Triple Number Windward/Leeward Low0.5140
Triple Number Windward/Leeward Medium0.7200
Triple Number Windward/Leeward High0.8459
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6652
Triple Number Coastal/Long Distance Medium0.8885
Triple Number Coastal/Long Distance High1.0079
Triple Number Windward/Leeward Low0.5140
Triple Number Windward/Leeward Medium0.7200
Triple Number Windward/Leeward High0.8459
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance742.00.8086
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Predominantly Upwind740.90.8098
Predominantly Downwind688.00.8721
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1967.41295.6969.8799.6696.4641.8605.3550.0530.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance742.00.8086
Triple Number Coastal/Long Distance Low902.00.6652
Triple Number Coastal/Long Distance Medium675.30.8885
Triple Number Coastal/Long Distance High595.31.0079
Triple Number Windward/Leeward Low1167.30.5140
Triple Number Windward/Leeward Medium833.30.7200
Triple Number Windward/Leeward High709.30.8459
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1967.41295.6969.8799.6696.4641.8605.3550.0530.4
Custom scoring options for United States of America
Scoring OptionTODTOT
TriNum AP Low902.00.6652
TriNum AP Med675.40.8884
TriNum AP High595.31.0079
TriNum W/L Low1221.70.4911
TriNum W/L Med833.30.7200
TriNum W/L Hig709.30.8459
Predom. Upwind774.50.7747
Predom. Reaching678.00.8849
Predom. Downwind722.40.8305
Predom. Up Low1105.10.5429
Predom. Up L/M827.00.7255
Predom. Up Med713.30.8412
Predom. Up M/H656.40.9141
Predom. Up High640.00.9374
Predom. Dn Low1096.50.5472
Predom. Dn L/M790.60.7590
Predom. Dn Med658.90.9106
Predom. Dn M/H583.31.0287
Predom. Dn High545.21.1004
Predom. Rc Low973.20.6165
Predom. Rc L/M725.00.8275
Predom. Rc Med625.90.9587
Predom. Rc M/H573.21.0467
Predom. Rc High546.81.0973
SA/DSPL Upwind18.28SA/DSPL Downwind28.87
Scoring OptionTODTOT
5B W/L Low1372.70.4371
5B W/L L/M987.20.6078
5B W/L Med815.30.7360
5B W/L M/H719.40.8340
5B W/L High688.60.8714
W/L 60-40 Low1382.70.4339
W/L 60-40 L/M1002.50.5985
W/L 60-40 Med835.00.7185
W/L 60-40 M/H744.20.8063
W/L 60-40 High718.50.8350
5B AP Low1000.30.5998
5B AP L/M777.40.7718
5B AP Med664.10.9034
5B AP M/H602.90.9952
5B AP High577.71.0386
5B SF Bay Low1180.90.5081
5B SF Bay L/M946.50.6339
5B SF Bay Med790.40.7591
5B SF Bay M/H705.70.8503
5B SF Bay High677.70.8854
Chicago-Mac Upwind0.7470
Chicago-Mac All Purpose0.7756
Chicago-Mac Downwind0.7981
BayMac Cove Island1084.50.5533
BayMac Shore1076.20.5575
Harvest Moon584.31.0269
ORC Ref  04340003VC2Issued on 07/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
LIBLEEST 991
Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFinn Express 83Measurement03/07/2023HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.319Max. Beam2.794Draft1.430Displacement2,403Wetted area14.35IMS L7.054LSM06.745Acc. length8.319Sink (kg/mm) 10.27
VCGD-0.041VCGM0.050RM Rated (kg·m) 36.2Limit of positive stability(°) N/AStability IndexN/ADefault crew weight393Declared crew weight330
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0014
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders1Rotating mastNo
P9.230IG8.070ISP8.160MDT10.093MDL10.129MDT2MDL2TLNo TaperMWGO
E3.600J2.690BAS1.180FSDSFJ0.085SPL2.680WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date15/04/2023
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04340003VC2Issued on 07/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
LIBLEEST 991
Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.160.681.232.142.9318.8603/07/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20.060.440.851.752.723.757.74NoNo 14.0208/07/2024
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment28.108.108.104.904.9133.0928/06/2025
CRUISER/RACER REQUIREMENTS*
Accommodation length8.3 mTable area0.33 m²Headroom1.40 mMinimum number of berths3Personal gear stowage0.12 m³Fresh water capacity35 lMinimum number of seats in cockpit3Food stowage0.18 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04340003VC2Issued on 07/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org