Double HandedClub Certificate2026
TRUE BLUEFIN-5347
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
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 Angles45.7°42.2°40.2°39.2°38.9°38.9°39.0°39.7°42.3°
Beat VMG2.353.303.924.234.354.404.434.414.20
52°3.684.965.726.056.216.296.346.376.29
60°3.945.205.926.236.406.486.546.606.57
75°4.125.386.086.406.616.776.877.027.05
90°4.015.356.126.486.726.957.177.477.61
110°3.935.386.236.646.987.317.527.838.06
120°3.755.196.126.606.987.387.788.268.63
135°3.244.645.696.356.777.197.668.679.99
150°2.673.904.975.856.426.827.238.259.73
Run VMG2.313.384.315.115.796.296.697.468.48
Gybe Angles138.4°145.3°150.7°155.2°164.2°172.7°178.1°175.4°158.6°
APH ToD:618.1CDL: 7.019APH ToT: 0.9707CertNo:
BOAT
ClassFINNFLYER 31 LFDesignerEIVIND STILLBuilderPOLAR YACHTAge date06/1986Series date06/1986Offset fileFIN5347mod.offData fileFIN5347
HULL
Length Overall9.380 mMaximum Beam3.240 mDraft1.718 mDisplacement2,568 kgDLR6.6218IMS DivisionPerformanceDynamic Allowance0.080%Age Allowance0.650%RS Assessment-0.381%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.405m
CREW
Maximum weight200 kg(declared)Minimum weight120 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail29.2429.91Headsail Luffed16.0916.09Headsail FlyingSymmetric49.6149.61Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail8.59Storm Jib5.28Heavy Weather Jib14.25
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 47.2 kg·m Stability Index 110.8
COMMENTS
Modded hull 2021
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  04140004Q2J Issued on 15/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
TRUE BLUEFIN-5347
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
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 VMG1529.31090.8919.4851.5828.2818.0812.8816.5856.9
52°979.1725.9629.2594.7580.0572.8568.3565.1572.8
60°914.7692.4608.3577.9562.6555.2550.1545.4548.2
75°872.9669.4592.4562.2544.8532.0523.8513.1510.5
90°897.5672.4588.0555.5535.8518.2502.1481.7472.9
110°916.4669.3578.0541.8515.8492.4478.5459.7446.8
120°958.9693.1588.5545.1515.6487.6462.8436.1417.2
135°1112.5776.7633.2566.9531.5500.7469.9415.1360.3
150°1348.3923.0724.0615.3560.3527.6497.6436.2369.9
Run VMG1556.91065.7835.6704.9622.3572.0538.5482.6424.5
Selected Courses
Windward / Leeward1543.11078.2877.5778.2725.2695.0675.6649.6640.7
All purpose1162.2831.6695.6634.0601.6580.6564.7541.8530.7
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward753.90.7958
All purpose618.10.9707
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance669.70.8959
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1544.51077.0827.5707.4641.2602.4569.0515.3501.1
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6843
Downwind "popa"0.8711
70% up, 30% down "Ilhabela"0.7314
30% up, 70% down "Ilhabela-inverso"0.8052
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Predominantly Upwind672.70.8919
Predominantly Downwind616.30.9736
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP641.70.9350 Predom. Rc High506.51.1846 5B SF Bay L/M811.90.7390 TriNum AP Low763.60.7858 Predom. Dn Low925.20.6485 5B SF Bay Med716.80.8371 TriNum AP Med615.00.9756 Predom. Dn L/M691.20.8680 5B SF Bay M/H665.20.9019 TriNum AP High560.11.0713 Predom. Dn Med598.21.0030 5B SF Bay High640.90.9362 TriNum W/L Low1024.50.5857 Predom. Dn M/H537.01.1172 5B AP Low843.50.7113 TriNum W/L Med748.00.8021 Predom. Dn High496.21.2092 5B AP L/M680.00.8823 TriNum W/L Hig670.70.8946 ChiMac Up Low820.00.7317 5B AP Med608.20.9865 Predom. Upwind698.60.8589 ChiMac Up Med752.20.7976 5B AP M/H566.61.0589 Predom. Reaching611.60.9811 ChiMac Up High673.00.8915 5B AP High543.91.1032 Predom. Downwind643.20.9329 ChiMac Off Low800.80.7492 5B W/L Low1144.30.5243 Predom. Up Low917.90.6537 ChiMac Off Med711.60.8432 5B W/L L/M849.60.7062 Predom. Up L/M720.80.8324 ChiMac Off High604.40.9926 5B W/L Med737.50.8135 Predom. Up Med657.00.9133 ChiMac AP Low806.60.7438 5B W/L M/H678.70.8841 Predom. Up M/H625.40.9594 ChiMac AP Med729.30.8228 5B W/L High652.50.9195 Predom. Up High612.90.9790 ChiMac AP High637.10.9418 W/L 60-40 Low1146.90.5231 Predom. Rc Low820.60.7312 BayMac Cove Island924.50.6490 W/L 60-40 L/M861.10.6968 Predom. Rc L/M641.60.9352 BayMac Shore916.80.6544 W/L 60-40 Med757.30.7923 Predom. Rc Med577.41.0391 Harvest Moon541.21.1086 W/L 60-40 M/H706.10.8498 Predom. Rc M/H534.61.1223 5B SF Bay Low964.90.6218 W/L 60-40 High686.60.8739      SA/DSPL Up24.09SA/DSPL Dn41.91
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance669.70.8959
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1544.51077.0827.5707.4641.2602.4569.0515.3501.1
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance669.70.8959
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1544.51077.0827.5707.4641.2602.4569.0515.3501.1
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance669.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1544.51077.0827.5707.4641.2602.4569.0515.3501.1
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating669.70.8959
FinRating, kevyt tuuli1126.40.8878
FinRating, kova tuuli546.80.9144
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8959
Triple Number Coastal/Long Distance Low0.7858
Triple Number Coastal/Long Distance Medium0.9756
Triple Number Coastal/Long Distance High1.0713
Triple Number Windward/Leeward Low0.6136
Triple Number Windward/Leeward Medium0.8021
Triple Number Windward/Leeward High0.8946
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1544.51077.0827.5707.4641.2602.4569.0515.3501.1
For information
General Purpose Handicap (GPH)686.9
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance669.70.8959
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Saronikos S All Purpose693.30.8654
Saronikos S Upwind784.20.7651
Saronikos S Downwind579.11.0362
Saronikos N All Purpose733.00.8185
Saronikos N Upwind816.90.7345
Saronikos N Downwind635.20.9447
Saronikos SW All Purpose692.50.8664
Saronikos SW Upwind794.40.7553
Saronikos SW Downwind589.71.0175
Saronikos NE All Purpose753.60.7962
Saronikos NE Upwind765.40.7839
Saronikos NE Downwind709.80.8453
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1544.51077.0827.5707.4641.2602.4569.0515.3501.1
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose641.70.9350
5-Band All Purpose Low917.20.6542
5-Band All Purpose L/M704.10.8522
5-Band All Purpose Med626.50.9577
5-Band All Purpose M/H580.41.0337
5-Band All Purpose High554.21.0827
Single Number Predominant Upwind671.00.8941
Single Number Predominant Reaching590.11.0167
Single Number Predominant Downwind617.60.9716
5-Band 50-50 Windward/Leeward Low1144.30.5243
5-Band 50-50 Windward/Leeward L/M849.60.7062
5-Band 50-50 Windward/Leeward Med737.50.8135
5-Band 50-50 Windward/Leeward M/H678.70.8841
5-Band 50-50 Windward/Leeward High652.50.9195
5-Band 60-40 Windward/Leeward Low1146.90.5231
5-Band 60-40 Windward/Leeward L/M861.10.6968
5-Band 60-40 Windward/Leeward Med757.30.7923
5-Band 60-40 Windward/Leeward M/H706.10.8498
5-Band 60-40 Windward/Leeward High686.60.8739
Triple Number 50-50 Windward/Leeward Low1024.50.5857
Triple Number 50-50 Windward/Leeward Med748.10.8020
Triple Number 50-50 Windward/Leeward High670.70.8946
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward773.30.7759
Triple Number 60-40 Windward/Leeward Low1029.70.5827
Triple Number 60-40 Windward/Leeward Med766.70.7826
Triple Number 60-40 Windward/Leeward High699.70.8576
Triple Number All-Purpose Low829.20.7236
Triple Number All-Purpose Med634.00.9464
Triple Number All-Purpose High573.01.0471
Triple Number Predominant Upwind Low843.00.7118
Triple Number Predominant Upwind Med664.90.9024
Triple Number Predominant Upwind High629.90.9525
Triple Number Predominant Reaching Low750.80.7992
Triple Number Predominant Reaching Med593.61.0108
Triple Number Predominant Reaching High517.31.1599
Triple Number Predominant Downwind Low829.00.7238
Triple Number Predominant Downwind Med607.00.9885
Triple Number Predominant Downwind High513.01.1697
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance669.70.8959
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1544.51077.0827.5707.4641.2602.4569.0515.3501.1
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance669.70.8959
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1544.51077.0827.5707.4641.2602.4569.0515.3501.1
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low763.6
Triple Number Coastal/Long Distance Medium615.0
Triple Number Coastal/Long Distance High560.1
Triple Number Windward/Leeward Low977.8
Triple Number Windward/Leeward Medium748.0
Triple Number Windward/Leeward High670.7
Predominantly Upwind672.7
Predominantly Downwind616.3
Predominantly Reaching596.2
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance669.70.8959
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1544.51077.0827.5707.4641.2602.4569.0515.3501.1
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7858
Triple Number Coastal/Long Distance Medium0.9756
Triple Number Coastal/Long Distance High1.0713
Triple Number Windward/Leeward Low0.6136
Triple Number Windward/Leeward Medium0.8021
Triple Number Windward/Leeward High0.8946
Coastal/Long Distance0.8959
Predominantly Upwind0.8919
Predominantly Downwind0.9736
For information
General Purpose Handicap (GPH)686.9
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9707
Distanseseilas Trippeltall svak vind0.7858
Distanseseilas Trippeltall mellomvind0.9756
Distanseseilas Trippeltall sterk vind1.0713
Pølsebane Trippeltall svak vind0.6136
Pølsebane Trippeltall mellomvind0.8021
Pølsebane Trippeltall sterk vind0.8946
Motvind Singeltall0.8919
Medvind Singeltall0.9736
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Coastal/Long Distance669.70.8959
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind672.70.8919
Predominantly Downwind616.30.9736
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore643.30.9326
Cape Doctor Coastal534.01.1235
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7858
Triple Number Coastal/Long Distance Medium0.9756
Triple Number Coastal/Long Distance High1.0713
Triple Number Windward/Leeward Low0.6136
Triple Number Windward/Leeward Medium0.8021
Triple Number Windward/Leeward High0.8946
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7858
Triple Number Coastal/Long Distance Medium0.9756
Triple Number Coastal/Long Distance High1.0713
Triple Number Windward/Leeward Low0.6136
Triple Number Windward/Leeward Medium0.8021
Triple Number Windward/Leeward High0.8946
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance669.70.8959
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Predominantly Upwind672.70.8919
Predominantly Downwind616.30.9736
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1544.51077.0827.5707.4641.2602.4569.0515.3501.1
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance669.70.8959
Triple Number Coastal/Long Distance Low763.60.7858
Triple Number Coastal/Long Distance Medium615.00.9756
Triple Number Coastal/Long Distance High560.11.0713
Triple Number Windward/Leeward Low977.80.6136
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High670.70.8946
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1544.51077.0827.5707.4641.2602.4569.0515.3501.1
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP641.70.9350 Predom. Dn High496.21.2092 5B AP M/H566.61.0589 TriNum AP Low763.60.7858 Predom. Rc Low820.60.7312 5B AP High543.91.1032 TriNum AP Med615.00.9756 Predom. Rc L/M641.60.9352 5B SF Bay Low964.90.6218 TriNum AP High560.11.0713 Predom. Rc Med577.41.0391 5B SF Bay L/M811.90.7390 TriNum W/L Low1024.50.5857 Predom. Rc M/H534.61.1223 5B SF Bay Med716.80.8371 TriNum W/L Med748.00.8021 Predom. Rc High506.51.1846 5B SF Bay M/H665.20.9019 TriNum W/L Hig670.70.8946 5B W/L Low1144.30.5243 5B SF Bay High640.90.9362 Predom. Upwind698.60.8589 5B W/L L/M849.60.7062 ChiMac Up Low820.00.7317 Predom. Reaching611.60.9811 5B W/L Med737.50.8135 ChiMac Up Med752.20.7976 Predom. Downwind643.20.9329 5B W/L M/H678.70.8841 ChiMac Up High673.00.8915 Predom. Up Low917.90.6537 5B W/L High652.50.9195 ChiMac Off Low800.80.7492 Predom. Up L/M720.80.8324 W/L 60-40 Low1146.90.5231 ChiMac Off Med711.60.8432 Predom. Up Med657.00.9133 W/L 60-40 L/M861.10.6968 ChiMac Off High604.40.9926 Predom. Up M/H625.40.9594 W/L 60-40 Med757.30.7923 ChiMac AP Low806.60.7438 Predom. Up High612.90.9790 W/L 60-40 M/H706.10.8498 ChiMac AP Med729.30.8228 Predom. Dn Low925.20.6485 W/L 60-40 High686.60.8739 ChiMac AP High637.10.9418 Predom. Dn L/M691.20.8680 5B AP Low843.50.7113 BayMac Cove Island924.50.6490 Predom. Dn Med598.21.0030 5B AP L/M680.00.8823 BayMac Shore916.80.6544 Predom. Dn M/H537.01.1172 5B AP Med608.20.9865 Harvest Moon541.21.1086      SA/DSPL Up24.09SA/DSPL Dn41.91
ORC Ref  04140004Q2J Issued on 15/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
TRUE BLUEFIN-5347
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFINNFLYER 31 LFMeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9.380Maximum beam3.240Draft1.718Displacement2,568Wetted area15.49IMS L7.536LSM07.292Accomod. length9.380Sink (kg/mm) 11.43
VCGD-0.011VCGM0.012 RM Rated (kg·m) 47.2Limit of positive stability(°) 117.2 Stability Index 110.8 BLR index 0.0000Default crew weight170 Declared crew weight 200
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.405PBW0.100PIPA0.0044
PSD0.025PHD0.067PHL0.120
PSA18.0°ESL0.930
ST10.022ST20.095ST30.095
ST40.043ST50.300
RIG
BackstayAdjustableForestayAdjustable (turnbuckle)Inner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysYesCheckstaysYesSpreaders2Rotating mastNo
P11.519IG10.209ISP10.410MDT10.085MDL10.135MDT20.054MDL20.092TL2.270MW0.135GO0.155
E4.257J3.210BAS1.309FSD0.026SFJSPL3.200WPLTPSBD0.137MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered49.5Flotation Date14/05/1993
SFFP0.616FFM1.041FF1.056LCFcl4.933SG1.0050
SAFP8.279FAM0.907FA0.916LCFsh5.184HBI0.959
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04140004Q2J Issued on 15/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
TRUE BLUEFIN-5347
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.150.881.612.763.5829.24North 2014
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC0.080.470.811.612.312.9910.30NoNo 16.09North G1 Light 2020ORC20.080.460.841.552.252.9610.30NoNo 15.80North New G1 med+heavy 2020
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentORC10.3010.3010.305.795.7449.61North S2.5 2012ORC210.3010.3010.305.765.7649.44North S3 2016
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
ORC Ref  04140004Q2J Issued on 15/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org