Double HandedClub Certificate2026
MarinettaFIN-6053
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 Angles46.5°43.1°41.3°41.0°40.8°40.8°41.0°41.8°44.5°
Beat VMG2.263.163.754.094.244.304.334.304.08
52°3.564.805.586.016.196.276.326.346.23
60°3.845.065.826.216.396.486.536.576.53
75°4.065.266.006.396.606.726.806.906.91
90°3.985.286.106.476.686.877.027.257.39
110°3.955.346.216.636.917.137.297.537.73
120°3.805.186.106.596.917.217.527.928.14
135°3.304.675.686.356.747.077.438.178.80
150°2.733.975.025.876.436.797.127.878.63
Run VMG2.363.444.355.135.806.306.677.308.01
Gybe Angles139.6°146.2°151.6°155.8°164.4°172.7°178.1°178.1°177.2°
APH ToD:626.2CDL: 7.059APH ToT: 0.9581CertNo:
BOAT
ClassCROWN 31DesignerHKAN SODERGRENBuilderCROWN MARINAge date07/1987Series date07/1987Offset fileINFERNO-31.offData fileL-6053
HULL
Length Overall9.447 mMaximum Beam3.018 mDraft1.615 mDisplacement4,057 kgDLR8.2705IMS DivisionCruiser/RacerDynamic Allowance0.280%Age Allowance0.650%RS Assessment0.000%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.377m
CREW
Maximum weight170 kg(declared)Minimum weight120 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail32.2432.94Headsail Luffed19.7919.79Headsail FlyingSymmetric62.0862.08Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail9.30Storm Jib7.11Heavy Weather Jib19.18
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting Moment 71.7 kg·m Stability Index 125.4
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  04140004MKI Issued on 22/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
MarinettaFIN-6053
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 VMG1593.71138.6959.3880.8849.1836.6831.8838.1883.3
52°1011.1749.7644.9599.4581.5574.2570.1568.0577.9
60°937.3711.8618.6579.6563.2555.9551.7548.2551.7
75°886.6684.4599.7563.6545.8535.4529.2522.0520.7
90°904.3682.1590.5556.1539.2524.3512.9496.5487.3
110°911.9673.9579.9542.7520.8504.8493.9478.2465.6
120°948.4695.2590.5546.5520.8499.1478.9454.7442.3
135°1092.4770.8633.4567.2534.0508.9484.6440.6409.2
150°1319.4906.4717.1613.2559.9530.0505.5457.3417.2
Run VMG1523.61046.6827.0701.4621.2571.7539.8493.4449.4
Selected Courses
Windward / Leeward1558.61092.6893.1791.1735.1704.2685.8665.7666.3
All purpose1172.7843.6705.7640.7607.6588.4575.2557.5554.2
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward765.40.7839
All purpose626.20.9581
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance679.10.8835
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1555.11088.0840.3716.8648.4610.3579.2528.9520.9
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6631
Downwind "popa"0.8748
70% up, 30% down "Ilhabela"0.7150
30% up, 70% down "Ilhabela-inverso"0.7983
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Predominantly Upwind684.00.8772
Predominantly Downwind620.70.9666
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP650.60.9222 Predom. Rc High522.81.1476 5B SF Bay L/M826.90.7256 TriNum AP Low774.60.7745 Predom. Dn Low923.80.6495 5B SF Bay Med728.40.8237 TriNum AP Med622.00.9646 Predom. Dn L/M693.20.8655 5B SF Bay M/H678.10.8849 TriNum AP High571.81.0492 Predom. Dn Med601.80.9970 5B SF Bay High660.10.9090 TriNum W/L Low1039.20.5774 Predom. Dn M/H546.01.0989 5B AP Low850.20.7057 TriNum W/L Med759.20.7903 Predom. Dn High513.51.1684 5B AP L/M688.60.8713 TriNum W/L Hig682.90.8786 ChiMac Up Low838.10.7159 5B AP Med615.30.9751 Predom. Upwind711.20.8436 ChiMac Up Med767.20.7821 5B AP M/H577.11.0396 Predom. Reaching618.60.9699 ChiMac Up High685.90.8747 5B AP High560.01.0714 Predom. Downwind647.90.9260 ChiMac Off Low801.00.7490 5B W/L Low1159.20.5176 Predom. Up Low940.60.6379 ChiMac Off Med713.90.8405 5B W/L L/M863.20.6951 Predom. Up L/M735.40.8159 ChiMac Off High610.90.9821 5B W/L Med748.30.8018 Predom. Up Med666.40.9003 ChiMac AP Low815.70.7355 5B W/L M/H689.70.8700 Predom. Up M/H635.60.9440 ChiMac AP Med737.80.8132 5B W/L High669.30.8965 Predom. Up High627.00.9569 ChiMac AP High646.70.9277 W/L 60-40 Low1168.90.5133 Predom. Rc Low827.80.7248 BayMac Cove Island935.00.6417 W/L 60-40 L/M878.90.6827 Predom. Rc L/M646.80.9276 BayMac Shore927.70.6467 W/L 60-40 Med770.60.7786 Predom. Rc Med582.31.0304 Harvest Moon549.61.0918 W/L 60-40 M/H718.70.8348 Predom. Rc M/H544.61.1018 5B SF Bay Low983.00.6104 W/L 60-40 High704.40.8518      SA/DSPL Up20.36SA/DSPL Dn36.91
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance679.10.8835
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1555.11088.0840.3716.8648.4610.3579.2528.9520.9
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance679.10.8835
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1555.11088.0840.3716.8648.4610.3579.2528.9520.9
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance679.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1555.11088.0840.3716.8648.4610.3579.2528.9520.9
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating679.10.8835
FinRating, kevyt tuuli1138.70.8782
FinRating, kova tuuli563.60.8872
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8835
Triple Number Coastal/Long Distance Low0.7745
Triple Number Coastal/Long Distance Medium0.9647
Triple Number Coastal/Long Distance High1.0492
Triple Number Windward/Leeward Low0.6043
Triple Number Windward/Leeward Medium0.7903
Triple Number Windward/Leeward High0.8786
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1555.11088.0840.3716.8648.4610.3579.2528.9520.9
For information
General Purpose Handicap (GPH)695.9
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance679.10.8835
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Saronikos S All Purpose709.50.8456
Saronikos S Upwind805.50.7449
Saronikos S Downwind584.91.0259
Saronikos N All Purpose746.70.8035
Saronikos N Upwind839.70.7145
Saronikos N Downwind635.60.9440
Saronikos SW All Purpose710.50.8445
Saronikos SW Upwind816.90.7345
Saronikos SW Downwind596.51.0059
Saronikos NE All Purpose763.70.7857
Saronikos NE Upwind782.70.7666
Saronikos NE Downwind708.70.8466
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1555.11088.0840.3716.8648.4610.3579.2528.9520.9
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose650.60.9222
5-Band All Purpose Low927.80.6467
5-Band All Purpose L/M712.20.8424
5-Band All Purpose Med633.00.9479
5-Band All Purpose M/H590.11.0168
5-Band All Purpose High569.81.0529
Single Number Predominant Upwind682.60.8790
Single Number Predominant Reaching596.21.0064
Single Number Predominant Downwind621.60.9652
5-Band 50-50 Windward/Leeward Low1159.20.5176
5-Band 50-50 Windward/Leeward L/M863.20.6951
5-Band 50-50 Windward/Leeward Med748.30.8018
5-Band 50-50 Windward/Leeward M/H689.70.8700
5-Band 50-50 Windward/Leeward High669.30.8965
5-Band 60-40 Windward/Leeward Low1168.90.5133
5-Band 60-40 Windward/Leeward L/M878.90.6827
5-Band 60-40 Windward/Leeward Med770.60.7786
5-Band 60-40 Windward/Leeward M/H718.70.8348
5-Band 60-40 Windward/Leeward High704.40.8518
Triple Number 50-50 Windward/Leeward Low1039.20.5774
Triple Number 50-50 Windward/Leeward Med759.30.7902
Triple Number 50-50 Windward/Leeward High682.90.8787
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward787.60.7619
Triple Number 60-40 Windward/Leeward Low1050.50.5712
Triple Number 60-40 Windward/Leeward Med780.60.7686
Triple Number 60-40 Windward/Leeward High713.40.8411
Triple Number All-Purpose Low839.40.7148
Triple Number All-Purpose Med640.40.9369
Triple Number All-Purpose High584.01.0275
Triple Number Predominant Upwind Low862.00.6961
Triple Number Predominant Upwind Med674.70.8892
Triple Number Predominant Upwind High640.90.9362
Triple Number Predominant Reaching Low758.20.7914
Triple Number Predominant Reaching Med598.41.0027
Triple Number Predominant Reaching High528.51.1353
Triple Number Predominant Downwind Low829.90.7230
Triple Number Predominant Downwind Med609.40.9845
Triple Number Predominant Downwind High523.41.1465
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance679.10.8835
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1555.11088.0840.3716.8648.4610.3579.2528.9520.9
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance679.10.8835
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1555.11088.0840.3716.8648.4610.3579.2528.9520.9
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low774.7
Triple Number Coastal/Long Distance Medium622.0
Triple Number Coastal/Long Distance High571.9
Triple Number Windward/Leeward Low992.9
Triple Number Windward/Leeward Medium759.2
Triple Number Windward/Leeward High682.9
Predominantly Upwind684.0
Predominantly Downwind620.7
Predominantly Reaching601.8
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance679.10.8835
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1555.11088.0840.3716.8648.4610.3579.2528.9520.9
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7745
Triple Number Coastal/Long Distance Medium0.9647
Triple Number Coastal/Long Distance High1.0492
Triple Number Windward/Leeward Low0.6043
Triple Number Windward/Leeward Medium0.7903
Triple Number Windward/Leeward High0.8786
Coastal/Long Distance0.8835
Predominantly Upwind0.8772
Predominantly Downwind0.9666
For information
General Purpose Handicap (GPH)695.9
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9581
Distanseseilas Trippeltall svak vind0.7745
Distanseseilas Trippeltall mellomvind0.9647
Distanseseilas Trippeltall sterk vind1.0492
Pølsebane Trippeltall svak vind0.6043
Pølsebane Trippeltall mellomvind0.7903
Pølsebane Trippeltall sterk vind0.8786
Motvind Singeltall0.8772
Medvind Singeltall0.9666
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Coastal/Long Distance679.10.8835
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind684.00.8772
Predominantly Downwind620.70.9666
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore666.20.9007
Cape Doctor Coastal555.21.0806
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7745
Triple Number Coastal/Long Distance Medium0.9647
Triple Number Coastal/Long Distance High1.0492
Triple Number Windward/Leeward Low0.6043
Triple Number Windward/Leeward Medium0.7903
Triple Number Windward/Leeward High0.8786
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7745
Triple Number Coastal/Long Distance Medium0.9647
Triple Number Coastal/Long Distance High1.0492
Triple Number Windward/Leeward Low0.6043
Triple Number Windward/Leeward Medium0.7903
Triple Number Windward/Leeward High0.8786
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance679.10.8835
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Predominantly Upwind684.00.8772
Predominantly Downwind620.70.9666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1555.11088.0840.3716.8648.4610.3579.2528.9520.9
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance679.10.8835
Triple Number Coastal/Long Distance Low774.70.7745
Triple Number Coastal/Long Distance Medium622.00.9647
Triple Number Coastal/Long Distance High571.91.0492
Triple Number Windward/Leeward Low992.90.6043
Triple Number Windward/Leeward Medium759.20.7903
Triple Number Windward/Leeward High682.90.8786
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1555.11088.0840.3716.8648.4610.3579.2528.9520.9
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP650.60.9222 Predom. Dn High513.51.1684 5B AP M/H577.11.0396 TriNum AP Low774.60.7745 Predom. Rc Low827.80.7248 5B AP High560.01.0714 TriNum AP Med622.00.9646 Predom. Rc L/M646.80.9276 5B SF Bay Low983.00.6104 TriNum AP High571.81.0492 Predom. Rc Med582.31.0304 5B SF Bay L/M826.90.7256 TriNum W/L Low1039.20.5774 Predom. Rc M/H544.61.1018 5B SF Bay Med728.40.8237 TriNum W/L Med759.20.7903 Predom. Rc High522.81.1476 5B SF Bay M/H678.10.8849 TriNum W/L Hig682.90.8786 5B W/L Low1159.20.5176 5B SF Bay High660.10.9090 Predom. Upwind711.20.8436 5B W/L L/M863.20.6951 ChiMac Up Low838.10.7159 Predom. Reaching618.60.9699 5B W/L Med748.30.8018 ChiMac Up Med767.20.7821 Predom. Downwind647.90.9260 5B W/L M/H689.70.8700 ChiMac Up High685.90.8747 Predom. Up Low940.60.6379 5B W/L High669.30.8965 ChiMac Off Low801.00.7490 Predom. Up L/M735.40.8159 W/L 60-40 Low1168.90.5133 ChiMac Off Med713.90.8405 Predom. Up Med666.40.9003 W/L 60-40 L/M878.90.6827 ChiMac Off High610.90.9821 Predom. Up M/H635.60.9440 W/L 60-40 Med770.60.7786 ChiMac AP Low815.70.7355 Predom. Up High627.00.9569 W/L 60-40 M/H718.70.8348 ChiMac AP Med737.80.8132 Predom. Dn Low923.80.6495 W/L 60-40 High704.40.8518 ChiMac AP High646.70.9277 Predom. Dn L/M693.20.8655 5B AP Low850.20.7057 BayMac Cove Island935.00.6417 Predom. Dn Med601.80.9970 5B AP L/M688.60.8713 BayMac Shore927.70.6467 Predom. Dn M/H546.01.0989 5B AP Med615.30.9751 Harvest Moon549.61.0918      SA/DSPL Up20.36SA/DSPL Dn36.91
ORC Ref  04140004MKI Issued on 22/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
MarinettaFIN-6053
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassCROWN 31Measurement06/05/1997HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9.447Maximum beam3.018Draft1.615Displacement4,057Wetted area18.92IMS L7.931LSM07.886Accomod. length9.447Sink (kg/mm) 14.06
VCGD-0.059VCGM-0.018 RM Rated (kg·m) 71.7Limit of positive stability(°) 123.8 Stability Index 125.4 BLR index 0.0000Default crew weight170 Declared crew weight 170
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.377PBW0.095PIPA0.0032
EDL0.800ST10.045ST20.170
ST30.170ST40.098ST50.338
RIG
BackstayFixedForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders1Rotating mastNo
P12.492IG11.842ISP11.894MDT10.115MDL10.170MDT20.112MDL20.131TL1.560MW0.170GO0.193
E4.250J3.560BAS1.599FSD0.044SFJ0.185SPL3.563WPLTPSBD0.125MWT97.50MCG4.622
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered73.1Flotation Date22/05/1994
SFFP0.593FFM1.204FF1.220LCFcl5.443SG1.0030
SAFP8.565FAM0.967FA0.979LCFsh5.650HBI1.065
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04140004MKI Issued on 22/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
MarinettaFIN-6053
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.150.911.692.823.6232.24* Copied from legacy *
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentG260.090.480.931.732.573.4011.40YesNo 19.7912/04/2026
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment211.7511.7511.756.356.3062.08
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length9.4 mTable area0.44 m²Headroom1.66 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity68 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity38 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04140004MKI Issued on 22/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org