Club Certificate2025
SPELLBOUNDGBR8571
ORC
Central Rating Office
Issuing certificates for
Ireland
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 Angles43.2°43.2°41.1°39.2°38.0°37.3°36.8°36.4°36.7°
Beat VMG2.583.554.304.815.105.245.325.415.40
52°4.035.406.346.857.117.247.317.407.44
60°4.305.696.577.017.257.407.487.597.64
75°4.465.866.727.147.397.587.727.898.00
90°4.315.736.667.177.477.667.848.158.37
110°4.035.556.667.237.577.868.128.568.86
120°3.865.336.457.127.507.818.118.749.37
135°3.364.725.866.737.257.597.918.599.49
150°2.733.965.106.066.817.277.608.228.96
Run VMG2.363.434.425.276.026.637.107.748.32
Gybe Angles144.8°144.8°150.1°153.1°159.2°166.9°176.8°179.0°178.6°
APH ToD:561.2CDL: 9.485APH ToT: 1.0692CertNo:
BOAT
ClassSIGMA 38OODDesignerTHOMASBuilderMARINE PROJECTSAge date10/1987Series date01/1987Offset fileK16400.BOFData fileGBR8571
HULL
Length Overall11.552 mMaximum Beam3.688 mDraft2.050 mDisplacement7,000 kgDLR7.4047IMS DivisionCruiser/RacerDynamic Allowance0.260%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.460m
CREW
Maximum weight765 kg(declared)Minimum weight635 kg ✱ when appliedNon Manual PowerCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail43.7744.58Headsail Luffed35.4235.42Headsail FlyingSymmetric78.4378.43Asymmetric
STORM SAIL AREAS (m²)
Trysail13.13Storm Jib8.96Heavy Weather Jib24.19
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
.
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.
Club Certificate2025
SPELLBOUNDGBR8571
ORC
Central Rating Office
Issuing certificates for
Ireland
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 VMG1394.51014.6837.9748.0706.5687.7676.4666.0666.3
52°893.5666.2567.5525.3506.6497.2492.2486.4484.1
60°837.9633.2548.0513.3496.3486.5481.0474.5471.2
75°807.9614.7536.1504.3487.0475.1466.4456.2449.8
90°836.0628.5540.2501.8481.8469.8459.2441.6429.9
110°892.3649.2540.6497.9475.5458.2443.3420.7406.4
120°933.2675.8558.0505.5479.8461.0443.9411.9384.2
135°1070.5762.2613.9534.6496.8474.1455.1419.0379.5
150°1319.1908.0706.3593.9528.4494.9473.5438.0401.7
Run VMG1523.51048.5815.4683.7597.9542.7507.0465.3432.6
Selected Courses
Windward / Leeward1457.11031.6826.6715.8652.2615.2591.7565.7549.4
All purpose1094.1790.8649.4578.8541.1519.5504.7484.2468.6
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward683.60.8777
All purpose561.21.0692
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.20.9833
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1557.91033.3778.9648.7575.5538.5510.9466.8449.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7869
Downwind "popa"0.9012
70% up, 30% down "Ilhabela"0.8180
30% up, 70% down "Ilhabela-inverso"0.8636
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Predominantly Upwind600.60.9990
Predominantly Downwind576.11.0414
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low720.10.8332
Triple Number AP Medium557.41.0765
Triple Number AP High500.71.1983
Triple Number Windward/Leeward Low971.00.6179
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Single Number Predominant Upwind624.00.9615
Single Number Predominant Reaching561.81.0680
Single Number Predominant Downwind602.80.9953
Predominant Upwind - Low854.10.7025
Predominant Upwind - Low/Med656.20.9144
Predominant Upwind - Medium581.61.0316
Predominant Upwind - Med/High545.21.1004
Predominant Upwind - High529.11.1340
Predominant Downwind Low888.40.6754
Predominant Downwind Low/Med653.60.9180
Predominant Downwind Medium554.91.0812
Predominant Downwind Med/High496.91.2075
Predominant Downwind High465.11.2901
Predominant Reaching Low774.40.7748
Predominant Reaching Low/Med594.31.0095
Predominant Reaching Medium525.01.1429
Predominant Reaching Med/High486.61.2331
Predominant Reaching High463.81.2937
SA/DSPL Upwind21.50SA/DSPL Downwind33.18
Scoring OptionTODTOT
5-Band Windward/Leeward Low1087.20.5519
5-Band Windward/Leeward Low/Med792.00.7576
5-Band Windward/Leeward Medium666.10.9008
5-Band Windward/Leeward Med/High596.41.0061
5-Band Windward/Leeward High567.41.0575
Windward/Leeward 60-40 Low1082.80.5541
Windward/Leeward 60-40 Low/Med796.20.7536
Windward/Leeward 60-40 Medium676.60.8868
Windward/Leeward 60-40 Med/High612.90.9789
Windward/Leeward 60-40 High587.51.0213
5-Band AP Low799.40.7506
5-Band AP Low/Med629.40.9534
5-Band AP Medium549.71.0914
5-Band AP Med/High506.81.1839
5-Band AP High485.01.2370
5-Band SF Bay Tour - Low932.90.6432
5-Band SF Bay Tour - Low/Med756.20.7935
5-Band SF Bay Tour - Medium644.10.9316
5-Band SF Bay Tour - Med/High584.41.0266
5-Band SF Bay Tour - High558.11.0751
Chicago-Mac Upwind0.9333
Chicago-Mac All Purpose0.9499
Chicago-Mac Downwind0.9593
Bayview-Mac Cove Island0.6949
Bayview-Mac Shore0.7012
Harvest Moon Regatta494.81.2127
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.20.9833
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1557.91033.3778.9648.7575.5538.5510.9466.8449.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.20.9833
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1557.91033.3778.9648.7575.5538.5510.9466.8449.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance610.2
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1557.91033.3778.9648.7575.5538.5510.9466.8449.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating610.20.9833
FinRating, kevyt tuuli1068.90.9356
FinRating, kova tuuli488.21.0242
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9833
Triple Number Coastal/Long Distance Low0.8332
Triple Number Coastal/Long Distance Medium1.0766
Triple Number Coastal/Long Distance High1.1983
Triple Number Windward/Leeward Low0.6458
Triple Number Windward/Leeward Medium0.8841
Triple Number Windward/Leeward High1.0207
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1557.91033.3778.9648.7575.5538.5510.9466.8449.9
For information
General Purpose Handicap (GPH)629.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.20.9833
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1557.91033.3778.9648.7575.5538.5510.9466.8449.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.20.9833
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1557.91033.3778.9648.7575.5538.5510.9466.8449.9
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.20.9833
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1557.91033.3778.9648.7575.5538.5510.9466.8449.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low720.1
Triple Number Coastal/Long Distance Medium557.3
Triple Number Coastal/Long Distance High500.7
Triple Number Windward/Leeward Low929.1
Triple Number Windward/Leeward Medium678.7
Triple Number Windward/Leeward High587.8
Predominantly Upwind600.6
Predominantly Downwind576.1
Predominantly Reaching551.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.20.9833
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1557.91033.3778.9648.7575.5538.5510.9466.8449.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8332
Triple Number Coastal/Long Distance Medium1.0766
Triple Number Coastal/Long Distance High1.1983
Triple Number Windward/Leeward Low0.6458
Triple Number Windward/Leeward Medium0.8841
Triple Number Windward/Leeward High1.0207
Coastal/Long Distance0.9833
Predominantly Upwind0.9990
Predominantly Downwind1.0414
For information
General Purpose Handicap (GPH)629.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0692
Distanseseilas Trippeltall svak vind0.8332
Distanseseilas Trippeltall mellomvind1.0766
Distanseseilas Trippeltall sterk vind1.1983
Pølsebane Trippeltall svak vind0.6458
Pølsebane Trippeltall mellomvind0.8841
Pølsebane Trippeltall sterk vind1.0207
Motvind Singeltall0.9990
Medvind Singeltall1.0414
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Coastal/Long Distance610.20.9833
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind600.60.9990
Predominantly Downwind576.11.0414
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore554.31.0824
Cape Doctor Coastal473.31.2677
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8332
Triple Number Coastal/Long Distance Medium1.0766
Triple Number Coastal/Long Distance High1.1983
Triple Number Windward/Leeward Low0.6458
Triple Number Windward/Leeward Medium0.8841
Triple Number Windward/Leeward High1.0207
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8332
Triple Number Coastal/Long Distance Medium1.0766
Triple Number Coastal/Long Distance High1.1983
Triple Number Windward/Leeward Low0.6458
Triple Number Windward/Leeward Medium0.8841
Triple Number Windward/Leeward High1.0207
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.20.9833
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Predominantly Upwind600.60.9990
Predominantly Downwind576.11.0414
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1557.91033.3778.9648.7575.5538.5510.9466.8449.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.20.9833
Triple Number Coastal/Long Distance Low720.10.8332
Triple Number Coastal/Long Distance Medium557.31.0766
Triple Number Coastal/Long Distance High500.71.1983
Triple Number Windward/Leeward Low929.10.6458
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1557.91033.3778.9648.7575.5538.5510.9466.8449.9
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low720.10.8332
Triple Number AP Medium557.41.0765
Triple Number AP High500.71.1983
Triple Number Windward/Leeward Low971.00.6179
Triple Number Windward/Leeward Medium678.70.8841
Triple Number Windward/Leeward High587.81.0207
Single Number Predominant Upwind624.00.9615
Single Number Predominant Reaching561.81.0680
Single Number Predominant Downwind602.80.9953
Predominant Upwind - Low854.10.7025
Predominant Upwind - Low/Med656.20.9144
Predominant Upwind - Medium581.61.0316
Predominant Upwind - Med/High545.21.1004
Predominant Upwind - High529.11.1340
Predominant Downwind Low888.40.6754
Predominant Downwind Low/Med653.60.9180
Predominant Downwind Medium554.91.0812
Predominant Downwind Med/High496.91.2075
Predominant Downwind High465.11.2901
Predominant Reaching Low774.40.7748
Predominant Reaching Low/Med594.31.0095
Predominant Reaching Medium525.01.1429
Predominant Reaching Med/High486.61.2331
Predominant Reaching High463.81.2937
SA/DSPL Upwind21.50SA/DSPL Downwind33.18
Scoring OptionTODTOT
5-Band Windward/Leeward Low1087.20.5519
5-Band Windward/Leeward Low/Med792.00.7576
5-Band Windward/Leeward Medium666.10.9008
5-Band Windward/Leeward Med/High596.41.0061
5-Band Windward/Leeward High567.41.0575
Windward/Leeward 60-40 Low1082.80.5541
Windward/Leeward 60-40 Low/Med796.20.7536
Windward/Leeward 60-40 Medium676.60.8868
Windward/Leeward 60-40 Med/High612.90.9789
Windward/Leeward 60-40 High587.51.0213
5-Band AP Low799.40.7506
5-Band AP Low/Med629.40.9534
5-Band AP Medium549.71.0914
5-Band AP Med/High506.81.1839
5-Band AP High485.01.2370
5-Band SF Bay Tour - Low932.90.6432
5-Band SF Bay Tour - Low/Med756.20.7935
5-Band SF Bay Tour - Medium644.10.9316
5-Band SF Bay Tour - Med/High584.41.0266
5-Band SF Bay Tour - High558.11.0751
Chicago-Mac Upwind0.9333
Chicago-Mac All Purpose0.9499
Chicago-Mac Downwind0.9593
Bayview-Mac Cove Island0.6949
Bayview-Mac Shore0.7012
Harvest Moon Regatta494.81.2127
Club Certificate2025
SPELLBOUNDGBR8571
ORC
Central Rating Office
Issuing certificates for
Ireland
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassSIGMA 38OODMeasurement11/02/1988HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA11.552Max. Beam3.688Draft2.050Displacement7,000Wetted area27.79IMS L10.035LSM09.813Acc. length11.552Sink (kg/mm) 19.96
VCGD-0.061VCGM-0.063RM Rated (kg·m) 143.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight670Declared crew weight765
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.460PBW0.115PIPA0.0043
PSD0.025PHD0.061PHL0.100
PSA22.0°ESL0.730
ST10.022ST20.095ST30.115
ST40.052ST50.240
RIG
Forestay tensionAftInner stayNone FittedMast materialSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1CheckstaysSpreaders2Rotating mastNo
P14.480IG13.385ISP13.385MDT10.132MDL10.186MDT20.107MDL20.138TL2.700MW0.186GO0.186
E5.180J3.980BAS1.535FSD0.036SFJ0.095SPL4.010WPLTPSBD0.160MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date22/09/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
SPELLBOUNDGBR8571
ORC
Central Rating Office
Issuing certificates for
Ireland
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentORC1.141.853.214.2743.77IRC
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC0.661.332.645.3413.25NoNo 35.42IRC
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentORC13.2013.2013.207.137.1378.43IRC
CRUISER/RACER REQUIREMENTS*
Accommodation length11.6 mTable area0.55 m²Headroom1.79 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity140 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity82 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.