Double HandedClub Certificate2026
PimuFIN-10358
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 Angles45.5°42.5°40.6°39.6°39.0°38.8°38.8°39.2°40.9°
Beat VMG2.353.324.014.434.634.724.774.794.65
52°3.675.025.926.426.646.746.806.866.82
60°3.935.286.156.616.846.957.027.107.09
75°4.125.476.326.777.047.237.367.527.59
90°4.165.646.556.997.267.447.607.928.12
110°4.075.626.627.147.567.928.158.689.02
120°3.925.476.517.067.517.958.399.1110.01
135°3.434.916.046.767.227.678.139.3211.32
150°2.844.135.236.146.757.167.548.399.62
Run VMG2.463.584.535.325.926.506.947.698.54
Gybe Angles139.5°143.2°147.6°150.3°160.6°168.2°178.1°178.1°176.6°
APH ToD:583.8CDL: 8.040APH ToT: 1.0277CertNo:
BOAT
ClassRidas 31DesignerDieter BlankBuilderRidas YachtAge date01/2006Series date01/1999Offset filecross-31.offData fileFIN10358
HULL
Length Overall9.350 mMaximum Beam3.098 mDraft1.984 mDisplacement3,700 kgDLR5.6521IMS DivisionCruiser/RacerDynamic Allowance0.220%Age Allowance0.650%RS Assessment-0.178%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameterm
CREW
Maximum weight200 kg(declared)Minimum weight120 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail31.4932.31Headsail Luffed20.1420.14Headsail FlyingSymmetric59.4259.42Asymmetric55.1060.69 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS Maximum (m²)
Trysail8.94Storm Jib6.62Heavy Weather Jib17.86
SAIL LIMITS
Headsails5Spinnakers4
✱ Asymmetric may be tacked on the pole
STABILITY
Righting Moment 75.7 kg·m Stability Index 126.9
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  04140004P6S Issued on 08/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
PimuFIN-10358
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 VMG1532.71083.2897.6812.0777.5762.4754.6752.3774.8
52°981.5716.9608.2561.1542.2534.1529.1524.9527.6
60°916.0682.1585.3544.4526.5518.0512.7507.2507.8
75°872.8658.2569.5531.6511.4498.1489.3478.7474.6
90°865.4638.2549.6515.0496.0484.0473.7454.3443.1
110°883.7640.7543.6504.2476.2454.7441.7414.8399.0
120°918.1658.1552.8509.6479.2453.0428.9395.2359.6
135°1049.5733.7596.4532.7498.5469.6442.6386.1318.0
150°1269.8871.1688.7586.2533.1502.9477.5428.9374.2
Run VMG1466.21005.8795.2676.8607.7554.2518.6467.9421.7
Selected Courses
Windward / Leeward1499.41044.5846.4744.4692.6658.3636.6610.1598.3
All purpose1131.7804.3665.7600.1566.2544.6529.3505.7489.6
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward719.40.8341
All purpose583.81.0277
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance634.80.9451
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1496.11040.6795.9673.0604.8565.8533.8481.4462.6
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7192
Downwind "popa"0.9079
70% up, 30% down "Ilhabela"0.7670
30% up, 70% down "Ilhabela-inverso"0.8416
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Predominantly Upwind636.40.9429
Predominantly Downwind585.21.0253
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP607.00.9884 Predom. Rc High473.41.2673 5B SF Bay L/M779.50.7697 TriNum AP Low735.00.8163 Predom. Dn Low882.50.6799 5B SF Bay Med680.40.8818 TriNum AP Med580.51.0336 Predom. Dn L/M656.60.9138 5B SF Bay M/H625.30.9595 TriNum AP High524.31.1444 Predom. Dn Med567.21.0579 5B SF Bay High598.91.0018 TriNum W/L Low990.60.6057 Predom. Dn M/H508.01.1812 5B AP Low813.00.7380 TriNum W/L Med714.10.8402 Predom. Dn High467.31.2839 5B AP L/M648.30.9255 TriNum W/L Hig632.10.9492 ChiMac Up Low792.00.7576 5B AP Med573.41.0464 Predom. Upwind662.50.9056 ChiMac Up Med719.40.8340 5B AP M/H531.01.1299 Predom. Reaching576.91.0401 ChiMac Up High635.20.9445 5B AP High507.01.1834 Predom. Downwind610.10.9834 ChiMac Off Low762.50.7869 5B W/L Low1108.70.5412 Predom. Up Low896.70.6691 ChiMac Off Med676.50.8870 5B W/L L/M816.90.7345 Predom. Up L/M689.60.8701 ChiMac Off High573.11.0470 5B W/L Med703.50.8529 Predom. Up Med618.50.9700 ChiMac AP Low773.20.7760 5B W/L M/H640.50.9368 Predom. Up M/H584.41.0268 ChiMac AP Med695.10.8632 5B W/L High612.60.9794 Predom. Up High569.11.0543 ChiMac AP High602.50.9959 W/L 60-40 Low1116.80.5373 Predom. Rc Low787.10.7623 BayMac Cove Island889.30.6747 W/L 60-40 L/M828.90.7238 Predom. Rc L/M606.80.9888 BayMac Shore882.10.6802 W/L 60-40 Med720.50.8327 Predom. Rc Med541.91.1072 Harvest Moon509.91.1766 W/L 60-40 M/H663.90.9038 Predom. Rc M/H501.91.1954 5B SF Bay Low935.90.6411 W/L 60-40 High641.40.9354      SA/DSPL Up21.49SA/DSPL Dn37.84
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance634.80.9451
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1496.11040.6795.9673.0604.8565.8533.8481.4462.6
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance634.80.9451
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1496.11040.6795.9673.0604.8565.8533.8481.4462.6
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance634.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1496.11040.6795.9673.0604.8565.8533.8481.4462.6
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating634.80.9451
FinRating, kevyt tuuli1090.00.9174
FinRating, kova tuuli509.70.9809
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9451
Triple Number Coastal/Long Distance Low0.8163
Triple Number Coastal/Long Distance Medium1.0337
Triple Number Coastal/Long Distance High1.1444
Triple Number Windward/Leeward Low0.6346
Triple Number Windward/Leeward Medium0.8402
Triple Number Windward/Leeward High0.9492
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1496.11040.6795.9673.0604.8565.8533.8481.4462.6
For information
General Purpose Handicap (GPH)652.0
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance634.80.9451
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Saronikos S All Purpose665.00.9022
Saronikos S Upwind753.20.7966
Saronikos S Downwind552.61.0857
Saronikos N All Purpose698.10.8594
Saronikos N Upwind785.80.7636
Saronikos N Downwind601.70.9971
Saronikos SW All Purpose665.00.9022
Saronikos SW Upwind768.80.7805
Saronikos SW Downwind557.51.0763
Saronikos NE All Purpose718.00.8356
Saronikos NE Upwind735.30.8160
Saronikos NE Downwind671.10.8940
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1496.11040.6795.9673.0604.8565.8533.8481.4462.6
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose607.00.9884
5-Band All Purpose Low884.90.6780
5-Band All Purpose L/M670.80.8945
5-Band All Purpose Med591.61.0143
5-Band All Purpose M/H545.51.0998
5-Band All Purpose High518.21.1578
Single Number Predominant Upwind635.00.9448
Single Number Predominant Reaching555.61.0799
Single Number Predominant Downwind586.11.0237
5-Band 50-50 Windward/Leeward Low1108.70.5412
5-Band 50-50 Windward/Leeward L/M816.90.7345
5-Band 50-50 Windward/Leeward Med703.50.8529
5-Band 50-50 Windward/Leeward M/H640.50.9368
5-Band 50-50 Windward/Leeward High612.60.9794
5-Band 60-40 Windward/Leeward Low1116.80.5373
5-Band 60-40 Windward/Leeward L/M828.90.7238
5-Band 60-40 Windward/Leeward Med720.50.8327
5-Band 60-40 Windward/Leeward M/H663.90.9038
5-Band 60-40 Windward/Leeward High641.40.9354
Triple Number 50-50 Windward/Leeward Low990.60.6057
Triple Number 50-50 Windward/Leeward Med714.20.8401
Triple Number 50-50 Windward/Leeward High632.10.9492
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward736.50.8147
Triple Number 60-40 Windward/Leeward Low999.70.6002
Triple Number 60-40 Windward/Leeward Med730.40.8214
Triple Number 60-40 Windward/Leeward High656.80.9135
Triple Number All-Purpose Low797.20.7527
Triple Number All-Purpose Med599.01.0016
Triple Number All-Purpose High538.01.1152
Triple Number Predominant Upwind Low817.70.7337
Triple Number Predominant Upwind Med627.20.9566
Triple Number Predominant Upwind High587.11.0220
Triple Number Predominant Reaching Low717.70.8360
Triple Number Predominant Reaching Med557.81.0756
Triple Number Predominant Reaching High485.01.2370
Triple Number Predominant Downwind Low790.10.7594
Triple Number Predominant Downwind Med575.81.0421
Triple Number Predominant Downwind High485.61.2357
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance634.80.9451
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1496.11040.6795.9673.0604.8565.8533.8481.4462.6
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance634.80.9451
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1496.11040.6795.9673.0604.8565.8533.8481.4462.6
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low735.0
Triple Number Coastal/Long Distance Medium580.4
Triple Number Coastal/Long Distance High524.3
Triple Number Windward/Leeward Low945.5
Triple Number Windward/Leeward Medium714.1
Triple Number Windward/Leeward High632.1
Predominantly Upwind636.4
Predominantly Downwind585.2
Predominantly Reaching562.8
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance634.80.9451
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1496.11040.6795.9673.0604.8565.8533.8481.4462.6
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8163
Triple Number Coastal/Long Distance Medium1.0337
Triple Number Coastal/Long Distance High1.1444
Triple Number Windward/Leeward Low0.6346
Triple Number Windward/Leeward Medium0.8402
Triple Number Windward/Leeward High0.9492
Coastal/Long Distance0.9451
Predominantly Upwind0.9429
Predominantly Downwind1.0253
For information
General Purpose Handicap (GPH)652.0
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0277
Distanseseilas Trippeltall svak vind0.8163
Distanseseilas Trippeltall mellomvind1.0337
Distanseseilas Trippeltall sterk vind1.1444
Pølsebane Trippeltall svak vind0.6346
Pølsebane Trippeltall mellomvind0.8402
Pølsebane Trippeltall sterk vind0.9492
Motvind Singeltall0.9429
Medvind Singeltall1.0253
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Coastal/Long Distance634.80.9451
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind636.40.9429
Predominantly Downwind585.21.0253
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore601.80.9970
Cape Doctor Coastal494.41.2135
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8163
Triple Number Coastal/Long Distance Medium1.0337
Triple Number Coastal/Long Distance High1.1444
Triple Number Windward/Leeward Low0.6346
Triple Number Windward/Leeward Medium0.8402
Triple Number Windward/Leeward High0.9492
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8163
Triple Number Coastal/Long Distance Medium1.0337
Triple Number Coastal/Long Distance High1.1444
Triple Number Windward/Leeward Low0.6346
Triple Number Windward/Leeward Medium0.8402
Triple Number Windward/Leeward High0.9492
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance634.80.9451
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Predominantly Upwind636.40.9429
Predominantly Downwind585.21.0253
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1496.11040.6795.9673.0604.8565.8533.8481.4462.6
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance634.80.9451
Triple Number Coastal/Long Distance Low735.00.8163
Triple Number Coastal/Long Distance Medium580.41.0337
Triple Number Coastal/Long Distance High524.31.1444
Triple Number Windward/Leeward Low945.50.6346
Triple Number Windward/Leeward Medium714.10.8402
Triple Number Windward/Leeward High632.10.9492
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1496.11040.6795.9673.0604.8565.8533.8481.4462.6
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP607.00.9884 Predom. Dn High467.31.2839 5B AP M/H531.01.1299 TriNum AP Low735.00.8163 Predom. Rc Low787.10.7623 5B AP High507.01.1834 TriNum AP Med580.51.0336 Predom. Rc L/M606.80.9888 5B SF Bay Low935.90.6411 TriNum AP High524.31.1444 Predom. Rc Med541.91.1072 5B SF Bay L/M779.50.7697 TriNum W/L Low990.60.6057 Predom. Rc M/H501.91.1954 5B SF Bay Med680.40.8818 TriNum W/L Med714.10.8402 Predom. Rc High473.41.2673 5B SF Bay M/H625.30.9595 TriNum W/L Hig632.10.9492 5B W/L Low1108.70.5412 5B SF Bay High598.91.0018 Predom. Upwind662.50.9056 5B W/L L/M816.90.7345 ChiMac Up Low792.00.7576 Predom. Reaching576.91.0401 5B W/L Med703.50.8529 ChiMac Up Med719.40.8340 Predom. Downwind610.10.9834 5B W/L M/H640.50.9368 ChiMac Up High635.20.9445 Predom. Up Low896.70.6691 5B W/L High612.60.9794 ChiMac Off Low762.50.7869 Predom. Up L/M689.60.8701 W/L 60-40 Low1116.80.5373 ChiMac Off Med676.50.8870 Predom. Up Med618.50.9700 W/L 60-40 L/M828.90.7238 ChiMac Off High573.11.0470 Predom. Up M/H584.41.0268 W/L 60-40 Med720.50.8327 ChiMac AP Low773.20.7760 Predom. Up High569.11.0543 W/L 60-40 M/H663.90.9038 ChiMac AP Med695.10.8632 Predom. Dn Low882.50.6799 W/L 60-40 High641.40.9354 ChiMac AP High602.50.9959 Predom. Dn L/M656.60.9138 5B AP Low813.00.7380 BayMac Cove Island889.30.6747 Predom. Dn Med567.21.0579 5B AP L/M648.30.9255 BayMac Shore882.10.6802 Predom. Dn M/H508.01.1812 5B AP Med573.41.0464 Harvest Moon509.91.1766      SA/DSPL Up21.49SA/DSPL Dn37.84
ORC Ref  04140004P6S Issued on 08/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
PimuFIN-10358
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassRidas 31MeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9.350Maximum beam3.098Draft1.984Displacement3,700Wetted area19.33IMS L8.702LSM08.682Accomod. length9.350Sink (kg/mm) 14.52
VCGD-0.015VCGM-0.101 RM Rated (kg·m) 75.7Limit of positive stability(°) 127.5 Stability Index 126.9 BLR index 0.0000Default crew weight170 Declared crew weight 200
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRDPBWPIPA0.0032
EDL1.000ST10.042ST20.180
ST30.180ST40.112ST50.250
RIG
BackstayAdjustableForestayAdjustable (turnbuckle)Inner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P11.850IG11.500ISP11.640MDT10.104MDL10.150MDT2MDL2TLTaperMWGO
E4.310J3.300BAS1.530FSDFoilSFJ0.000SPL3.320WPLTPS4.950BDMWT94.00MCG4.200
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/01/2015
SFFP0.275FFMFF1.115LCFcl5.289SG
SAFP8.975FAMFA0.846LCFsh5.497HBI1.019
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04140004P6S Issued on 08/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
PimuFIN-10358
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.991.742.873.7531.4910.250.991.722.883.6631.23
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.070.480.921.752.573.4311.56YesNo 20.1426/05/2015
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment111.2011.2011.206.465.9959.42111.4011.4011.405.9956.88
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment112.6110.5411.585.446.8080%55.1002/05/2022
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length9.3 mTable area0.44 m²Headroom1.65 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity66 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity36 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04140004P6S Issued on 08/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org