Non Spin/HSFClub Certificate2026
Ilona TuulikkiFIN-6313
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 Angles45.8°42.7°40.8°39.7°38.9°38.7°38.9°39.3°40.2°
Beat VMG2.183.043.624.024.244.334.384.384.34
52°3.414.585.335.796.046.156.216.246.24
60°3.654.805.535.966.206.326.386.436.45
75°3.804.935.676.106.346.506.626.766.84
90°3.684.835.626.106.386.596.767.067.27
110°3.094.335.245.916.316.596.837.297.58
120°2.894.135.055.766.226.526.777.297.70
135°2.503.694.625.365.936.316.577.097.58
150°2.103.154.084.835.485.986.326.817.32
Run VMG1.822.733.544.244.885.455.926.516.97
Gybe Angles143.1°147.4°152.8°160.9°169.0°174.5°177.7°179.2°179.0°
APH ToD:676.4CDL: 6.704APH ToT: 0.8871CertNo:
BOAT
ClassIW 31DesignerSparkman&StephensBuilderIW VarvetAge date01/1975Series date01/1975Offset fileIW31.OFFData fileL-6313
HULL
Length Overall9.300Maximum Beam2.684Draft1.685Displacement3,745DLR11.5040IMS DivisionCruiser/RacerDynamic Allowance0.610%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationShaft exposedTypeFolding 3 bladesDiameter0.350m
CREW
Maximum weight350(declared)Minimum weight220 ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail17.4617.83Headsail Luffed28.8728.87Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS Maximum (m²)
Trysail5.01Storm Jib6.76Heavy Weather Jib18.25
SAIL LIMITS
Headsails5
✱ Zero set flying
Spinnakers0
✱ Spinnaker pole aboard
STABILITY
Righting Moment 53.5 Stability Index 126.0
COMMENTS
HULL #243
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  04140004IL7 Issued on 22/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
Ilona TuulikkiFIN-6313
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 VMG1653.11185.6994.5896.0848.7830.7821.3821.4830.3
52°1055.7785.6675.5621.8596.0584.9579.9576.9576.8
60°987.2750.3651.2604.2581.1569.6564.3559.9557.9
75°948.4730.5635.5590.5567.5553.4543.8532.2526.2
90°979.1745.7641.1590.4564.1546.6532.6510.0495.3
110°1163.9832.1687.1609.5570.2546.6527.3493.6474.6
120°1245.6871.3712.7625.2578.5552.3531.6493.7467.5
135°1438.9976.5779.9671.1606.9570.8547.7507.8474.7
150°1716.61142.0883.3744.8657.1602.3569.7528.7492.0
Run VMG1982.11318.71017.5848.3737.5660.2608.1552.8516.2
Selected Courses
Windward / Leeward1817.61252.11006.0872.1793.1745.5714.7687.1673.3
All purpose1363.1964.1792.2701.2650.3621.5602.8580.6566.6
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward830.50.7225
All purpose676.40.8871
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance736.80.8144
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1834.11258.8949.2788.6694.2645.2609.6555.7539.3
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6564
Downwind "popa"0.7313
70% up, 30% down "Ilhabela"0.6772
30% up, 70% down "Ilhabela-inverso"0.7071
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Predominantly Upwind719.50.8339
Predominantly Downwind701.20.8557
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP703.80.8525 Predom. Rc High551.11.0888 5B SF Bay L/M916.30.6548 TriNum AP Low878.20.6832 Predom. Dn Low1113.40.5389 5B SF Bay Med782.00.7673 TriNum AP Med672.00.8929 Predom. Dn L/M804.90.7454 5B SF Bay M/H707.50.8481 TriNum AP High599.21.0014 Predom. Dn Med673.80.8905 5B SF Bay High679.80.8826 TriNum W/L Low1184.50.5065 Predom. Dn M/H594.91.0086 5B AP Low988.10.6072 TriNum W/L Med825.30.7270 Predom. Dn High557.01.0771 5B AP L/M764.50.7848 TriNum W/L Hig712.10.8426 ChiMac Up Low903.10.6644 5B AP Med661.80.9066 Predom. Upwind748.00.8021 ChiMac Up Med816.20.7351 5B AP M/H606.20.9897 Predom. Reaching676.10.8875 ChiMac Up High716.80.8371 5B AP High582.01.0308 Predom. Downwind737.30.8138 ChiMac Off Low946.60.6339 5B W/L Low1332.00.4505 Predom. Up Low1026.40.5846 ChiMac Off Med827.40.7252 5B W/L L/M963.60.6227 Predom. Up L/M786.90.7625 ChiMac Off High688.20.8718 5B W/L Med809.50.7412 Predom. Up Med695.70.8624 ChiMac AP Low918.50.6532 5B W/L M/H721.90.8312 Predom. Up M/H651.80.9205 ChiMac AP Med817.20.7342 5B W/L High689.50.8702 Predom. Up High636.80.9422 ChiMac AP High699.60.8577 W/L 60-40 Low1316.50.4557 Predom. Rc Low949.40.6320 BayMac Cove Island1061.10.5654 W/L 60-40 L/M964.20.6223 Predom. Rc L/M720.10.8332 BayMac Shore1049.10.5719 W/L 60-40 Med820.30.7315 Predom. Rc Med628.40.9548 Harvest Moon597.61.0040 W/L 60-40 M/H742.60.8080 Predom. Rc M/H577.01.0399 5B SF Bay Low1113.20.5390 W/L 60-40 High716.20.8378      SA/DSPL Up19.13SA/DSPL Dn19.13
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance736.80.8144
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1834.11258.8949.2788.6694.2645.2609.6555.7539.3
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance736.80.8144
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1834.11258.8949.2788.6694.2645.2609.6555.7539.3
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance736.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1834.11258.8949.2788.6694.2645.2609.6555.7539.3
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating736.80.8144
FinRating, kevyt tuuli1316.40.7596
FinRating, kova tuuli586.30.8529
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8144
Triple Number Coastal/Long Distance Low0.6832
Triple Number Coastal/Long Distance Medium0.8930
Triple Number Coastal/Long Distance High1.0014
Triple Number Windward/Leeward Low0.5314
Triple Number Windward/Leeward Medium0.7270
Triple Number Windward/Leeward High0.8426
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1834.11258.8949.2788.6694.2645.2609.6555.7539.3
For information
General Purpose Handicap (GPH)760.9
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance736.80.8144
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Saronikos S All Purpose760.30.7892
Saronikos S Upwind831.50.7216
Saronikos S Downwind688.70.8713
Saronikos N All Purpose806.10.7444
Saronikos N Upwind866.40.6925
Saronikos N Downwind761.80.7876
Saronikos SW All Purpose770.90.7783
Saronikos SW Upwind851.70.7045
Saronikos SW Downwind706.50.8492
Saronikos NE All Purpose845.90.7093
Saronikos NE Upwind814.00.7371
Saronikos NE Downwind868.80.6906
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1834.11258.8949.2788.6694.2645.2609.6555.7539.3
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose703.80.8525
5-Band All Purpose Low1062.10.5649
5-Band All Purpose L/M792.10.7575
5-Band All Purpose Med682.60.8790
5-Band All Purpose M/H621.80.9650
5-Band All Purpose High595.31.0078
Single Number Predominant Upwind717.20.8365
Single Number Predominant Reaching649.10.9243
Single Number Predominant Downwind702.70.8539
5-Band 50-50 Windward/Leeward Low1332.00.4505
5-Band 50-50 Windward/Leeward L/M963.60.6227
5-Band 50-50 Windward/Leeward Med809.50.7412
5-Band 50-50 Windward/Leeward M/H721.90.8312
5-Band 50-50 Windward/Leeward High689.50.8702
5-Band 60-40 Windward/Leeward Low1316.50.4557
5-Band 60-40 Windward/Leeward L/M964.20.6223
5-Band 60-40 Windward/Leeward Med820.30.7315
5-Band 60-40 Windward/Leeward M/H742.60.8080
5-Band 60-40 Windward/Leeward High716.20.8378
Triple Number 50-50 Windward/Leeward Low1184.50.5065
Triple Number 50-50 Windward/Leeward Med825.40.7269
Triple Number 50-50 Windward/Leeward High712.00.8426
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward840.80.7136
Triple Number 60-40 Windward/Leeward Low1174.90.5107
Triple Number 60-40 Windward/Leeward Med834.70.7188
Triple Number 60-40 Windward/Leeward High734.40.8170
Triple Number All-Purpose Low953.40.6293
Triple Number All-Purpose Med693.60.8651
Triple Number All-Purpose High614.00.9771
Triple Number Predominant Upwind Low940.60.6379
Triple Number Predominant Upwind Med707.90.8476
Triple Number Predominant Upwind High651.90.9203
Triple Number Predominant Reaching Low861.20.6967
Triple Number Predominant Reaching Med647.10.9273
Triple Number Predominant Reaching High559.71.0719
Triple Number Predominant Downwind Low986.70.6081
Triple Number Predominant Downwind Med690.10.8695
Triple Number Predominant Downwind High574.71.0440
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance736.80.8144
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1834.11258.8949.2788.6694.2645.2609.6555.7539.3
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance736.80.8144
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1834.11258.8949.2788.6694.2645.2609.6555.7539.3
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low878.2
Triple Number Coastal/Long Distance Medium671.9
Triple Number Coastal/Long Distance High599.2
Triple Number Windward/Leeward Low1129.1
Triple Number Windward/Leeward Medium825.3
Triple Number Windward/Leeward High712.1
Predominantly Upwind719.5
Predominantly Downwind701.2
Predominantly Reaching665.2
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance736.80.8144
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1834.11258.8949.2788.6694.2645.2609.6555.7539.3
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6832
Triple Number Coastal/Long Distance Medium0.8930
Triple Number Coastal/Long Distance High1.0014
Triple Number Windward/Leeward Low0.5314
Triple Number Windward/Leeward Medium0.7270
Triple Number Windward/Leeward High0.8426
Coastal/Long Distance0.8144
Predominantly Upwind0.8339
Predominantly Downwind0.8557
For information
General Purpose Handicap (GPH)760.9
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.8871
Distanseseilas Trippeltall svak vind0.6832
Distanseseilas Trippeltall mellomvind0.8930
Distanseseilas Trippeltall sterk vind1.0014
Pølsebane Trippeltall svak vind0.5314
Pølsebane Trippeltall mellomvind0.7270
Pølsebane Trippeltall sterk vind0.8426
Motvind Singeltall0.8339
Medvind Singeltall0.8557
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Coastal/Long Distance736.80.8144
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind719.50.8339
Predominantly Downwind701.20.8557
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore677.40.8857
Cape Doctor Coastal570.81.0511
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6832
Triple Number Coastal/Long Distance Medium0.8930
Triple Number Coastal/Long Distance High1.0014
Triple Number Windward/Leeward Low0.5314
Triple Number Windward/Leeward Medium0.7270
Triple Number Windward/Leeward High0.8426
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6832
Triple Number Coastal/Long Distance Medium0.8930
Triple Number Coastal/Long Distance High1.0014
Triple Number Windward/Leeward Low0.5314
Triple Number Windward/Leeward Medium0.7270
Triple Number Windward/Leeward High0.8426
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance736.80.8144
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Predominantly Upwind719.50.8339
Predominantly Downwind701.20.8557
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1834.11258.8949.2788.6694.2645.2609.6555.7539.3
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance736.80.8144
Triple Number Coastal/Long Distance Low878.20.6832
Triple Number Coastal/Long Distance Medium671.90.8930
Triple Number Coastal/Long Distance High599.21.0014
Triple Number Windward/Leeward Low1129.10.5314
Triple Number Windward/Leeward Medium825.30.7270
Triple Number Windward/Leeward High712.10.8426
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1834.11258.8949.2788.6694.2645.2609.6555.7539.3
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP703.80.8525 Predom. Dn High557.01.0771 5B AP M/H606.20.9897 TriNum AP Low878.20.6832 Predom. Rc Low949.40.6320 5B AP High582.01.0308 TriNum AP Med672.00.8929 Predom. Rc L/M720.10.8332 5B SF Bay Low1113.20.5390 TriNum AP High599.21.0014 Predom. Rc Med628.40.9548 5B SF Bay L/M916.30.6548 TriNum W/L Low1184.50.5065 Predom. Rc M/H577.01.0399 5B SF Bay Med782.00.7673 TriNum W/L Med825.30.7270 Predom. Rc High551.11.0888 5B SF Bay M/H707.50.8481 TriNum W/L Hig712.10.8426 5B W/L Low1332.00.4505 5B SF Bay High679.80.8826 Predom. Upwind748.00.8021 5B W/L L/M963.60.6227 ChiMac Up Low903.10.6644 Predom. Reaching676.10.8875 5B W/L Med809.50.7412 ChiMac Up Med816.20.7351 Predom. Downwind737.30.8138 5B W/L M/H721.90.8312 ChiMac Up High716.80.8371 Predom. Up Low1026.40.5846 5B W/L High689.50.8702 ChiMac Off Low946.60.6339 Predom. Up L/M786.90.7625 W/L 60-40 Low1316.50.4557 ChiMac Off Med827.40.7252 Predom. Up Med695.70.8624 W/L 60-40 L/M964.20.6223 ChiMac Off High688.20.8718 Predom. Up M/H651.80.9205 W/L 60-40 Med820.30.7315 ChiMac AP Low918.50.6532 Predom. Up High636.80.9422 W/L 60-40 M/H742.60.8080 ChiMac AP Med817.20.7342 Predom. Dn Low1113.40.5389 W/L 60-40 High716.20.8378 ChiMac AP High699.60.8577 Predom. Dn L/M804.90.7454 5B AP Low988.10.6072 BayMac Cove Island1061.10.5654 Predom. Dn Med673.80.8905 5B AP L/M764.50.7848 BayMac Shore1049.10.5719 Predom. Dn M/H594.91.0086 5B AP Med661.80.9066 Harvest Moon597.61.0040      SA/DSPL Up19.13SA/DSPL Dn19.13
ORC Ref  04140004IL7 Issued on 22/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
Ilona TuulikkiFIN-6313
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassIW 31MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9.300Maximum beam2.684Draft1.685Displacement3,745Wetted area16.97IMS L7.215LSM06.879Accomod. length8.723Sink (kg/mm) 11.53
VCGD-0.226VCGM-0.123 RM Rated (kg·m) 53.5Limit of positive stability(°) 121.8 Stability Index 126.0 BLR index 0.0000Default crew weight404 Declared crew weight 350
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.350PBW0.087PIPA0.0023
PSD0.025PHD0.043PHL0.135
PSA18.0°ESL0.405
ST10.049ST20.064ST30.064
ST40.049ST50.155
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders1Rotating mastNo
P9.865IG11.548ISP11.564MDT10.115MDL10.183MDT20.115MDL20.183TL0.000MW0.183GO0.206
E2.900J3.495BAS1.288FSD0.000SFJ0.300SPL3.485WPLTPSBD0.112MWT110.00MCG3.360
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date06/06/2006
SFFP0.320FFM0.999FF1.016LCFcl5.181SG1.0050
SAFP9.150FAM0.614FA0.627LCFsh5.344HBI0.786
W140.0W240.0W340.0W440.0
PD1499.6PD2499.4PD3500.7PD4499.5
WD8.815PLM9000.00GSA1.0RSA1.0RM55.6
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04140004IL7 Issued on 22/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
Ilona TuulikkiFIN-6313
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20.130.651.151.932.4817.4619/01/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentG1 20200.080.561.232.573.905.2111.20NoNo 28.8705/05/2019G24.8811.21NoNo 27.8405/06/2006G600.070.571.132.323.564.8510.76NoNo 25.5002/01/2022G30.050.390.751.532.353.2311.00NoNo 17.2808/04/2015
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length8.7 mTable area0.33 m²Headroom1.57 mMinimum number of berths3Personal gear stowage0.12 m³Fresh water capacity40 lMinimum number of seats in cockpit3Food stowage0.18 m³Fuel capacity24 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04140004IL7 Issued on 22/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org