Club Certificate2025
VikingCAN 1047
Portsmouth Olympic Harbour
53 Yonge Street
Kingston, Ontario
Canada K7M 6G4
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 Angles41.6°41.6°38.5°36.2°35.1°34.6°34.3°34.5°36.0°
Beat VMG2.944.024.815.205.375.485.555.605.50
52°4.626.016.817.177.367.517.627.777.75
60°4.926.276.977.377.627.797.938.128.16
75°5.076.417.087.577.988.258.478.828.98
90°4.916.307.057.558.098.619.069.7110.17
110°5.026.497.368.018.508.989.4710.5511.99
120°4.866.377.338.118.889.5010.1311.4012.72
135°4.215.776.927.708.569.6310.8913.1114.95
150°3.504.896.036.907.658.399.3812.5715.96
Run VMG3.034.235.226.006.667.288.1310.8913.82
Gybe Angles143.8°143.8°147.2°153.7°153.2°153.4°145.4°144.5°149.1°
APH ToD:506.3CDL: 9.311APH ToT: 1.1851CertNo:ON2517
BOAT
ClassHenderson 30DesignerGlenn HendersonBuilderSOCA SailboatsAge date01/1997Series date01/1997Offset fileHEN30.OFFData fileCAN1047-Viking
HULL
Length Overall9.388 mMaximum Beam2.993 mDraft2.126 mDisplacement1,826 kgDLR3.6272IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight572 kg(declared)Minimum weight442 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail34.8236.20Headsail Luffed17.9217.92Headsail FlyingSymmetricAsymmetric98.4198.41 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail8.95Storm Jib6.42Heavy Weather Jib17.34
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
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  03430003VPEIssued on 16/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
VikingCAN 1047
Portsmouth Olympic Harbour
53 Yonge Street
Kingston, Ontario
Canada K7M 6G4
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 VMG1226.1894.9747.7692.4669.8657.0648.1642.4654.1
52°778.6598.6528.5502.3488.9479.6472.3463.5464.6
60°732.4574.5516.8488.5472.6462.2454.1443.6441.4
75°709.7561.6508.8475.8451.4436.4424.9408.4400.8
90°733.7571.9510.4476.5445.3417.9397.2370.7354.1
110°717.4554.9488.9449.3423.8400.8380.3341.1300.2
120°740.3565.4491.1443.9405.5378.8355.5315.9282.9
135°854.6624.4520.1467.5420.5373.8330.6274.6240.8
150°1028.5736.2597.2521.4470.4428.9383.6286.3225.6
Run VMG1186.2850.1689.6599.8540.6494.4443.0330.6260.5
Selected Courses
Windward / Leeward1206.2872.5718.7646.1605.2575.7545.5486.5457.3
All purpose912.5680.4578.4528.7496.7471.7448.8409.4387.4
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward620.30.9673
All purpose506.31.1851
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance547.81.0952
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1267.4870.3680.7588.4528.8489.8453.0389.9365.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8481
Downwind "popa"1.0638
70% up, 30% down "Ilhabela"0.9030
30% up, 70% down "Ilhabela-inverso"0.9884
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Predominantly Upwind553.11.0848
Predominantly Downwind505.21.1876
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low629.40.9533
Triple Number AP Medium508.01.1812
Triple Number AP High439.81.3644
Triple Number Windward/Leeward Low829.40.7234
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Single Number Predominant Upwind569.31.0540
Single Number Predominant Reaching496.31.2091
Single Number Predominant Downwind519.51.1550
Predominant Upwind - Low747.20.8030
Predominant Upwind - Low/Med597.01.0050
Predominant Upwind - Medium540.61.1098
Predominant Upwind - Med/High501.41.1966
Predominant Upwind - High478.21.2547
Predominant Downwind Low742.80.8078
Predominant Downwind Low/Med573.21.0468
Predominant Downwind Medium493.51.2157
Predominant Downwind Med/High419.51.4301
Predominant Downwind High361.51.6599
Predominant Reaching Low670.00.8955
Predominant Reaching Low/Med535.91.1195
Predominant Reaching Medium474.31.2651
Predominant Reaching Med/High418.81.4328
Predominant Reaching High381.91.5712
SA/DSPL Upwind35.23SA/DSPL Downwind88.99
Scoring OptionTODTOT
5-Band Windward/Leeward Low917.50.6540
5-Band Windward/Leeward Low/Med699.00.8584
5-Band Windward/Leeward Medium611.50.9812
5-Band Windward/Leeward Med/High545.71.0995
5-Band Windward/Leeward High491.61.2204
Windward/Leeward 60-40 Low922.10.6507
Windward/Leeward 60-40 Low/Med706.90.8488
Windward/Leeward 60-40 Medium624.40.9609
Windward/Leeward 60-40 Med/High566.61.0589
Windward/Leeward 60-40 High522.41.1486
5-Band AP Low684.30.8769
5-Band AP Low/Med563.91.0641
5-Band AP Medium500.61.1985
5-Band AP Med/High450.11.3331
5-Band AP High412.41.4548
5-Band SF Bay Tour - Low796.70.7531
5-Band SF Bay Tour - Low/Med668.90.8970
5-Band SF Bay Tour - Medium588.41.0197
5-Band SF Bay Tour - Med/High528.41.1355
5-Band SF Bay Tour - High482.51.2435
Chicago-Mac Upwind1.0242
Chicago-Mac All Purpose1.0660
Chicago-Mac Downwind1.1057
Bayview-Mac Cove Island0.8060
Bayview-Mac Shore0.8109
Harvest Moon Regatta428.51.4002
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance547.81.0952
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1267.4870.3680.7588.4528.8489.8453.0389.9365.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance547.81.0952
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1267.4870.3680.7588.4528.8489.8453.0389.9365.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance547.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1267.4870.3680.7588.4528.8489.8453.0389.9365.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating547.81.0952
FinRating, kevyt tuuli900.31.1107
FinRating, kova tuuli413.51.2092
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0952
Triple Number Coastal/Long Distance Low0.9533
Triple Number Coastal/Long Distance Medium1.1813
Triple Number Coastal/Long Distance High1.3644
Triple Number Windward/Leeward Low0.7542
Triple Number Windward/Leeward Medium0.9663
Triple Number Windward/Leeward High1.1301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1267.4870.3680.7588.4528.8489.8453.0389.9365.9
For information
General Purpose Handicap (GPH)563.6
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance547.81.0952
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1267.4870.3680.7588.4528.8489.8453.0389.9365.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance547.81.0952
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1267.4870.3680.7588.4528.8489.8453.0389.9365.9
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance547.81.0952
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1267.4870.3680.7588.4528.8489.8453.0389.9365.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low629.4
Triple Number Coastal/Long Distance Medium507.9
Triple Number Coastal/Long Distance High439.8
Triple Number Windward/Leeward Low795.5
Triple Number Windward/Leeward Medium620.9
Triple Number Windward/Leeward High530.9
Predominantly Upwind553.1
Predominantly Downwind505.2
Predominantly Reaching488.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance547.81.0952
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1267.4870.3680.7588.4528.8489.8453.0389.9365.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9533
Triple Number Coastal/Long Distance Medium1.1813
Triple Number Coastal/Long Distance High1.3644
Triple Number Windward/Leeward Low0.7542
Triple Number Windward/Leeward Medium0.9663
Triple Number Windward/Leeward High1.1301
Coastal/Long Distance1.0952
Predominantly Upwind1.0848
Predominantly Downwind1.1876
For information
General Purpose Handicap (GPH)563.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1851
Distanseseilas Trippeltall svak vind0.9533
Distanseseilas Trippeltall mellomvind1.1813
Distanseseilas Trippeltall sterk vind1.3644
Pølsebane Trippeltall svak vind0.7542
Pølsebane Trippeltall mellomvind0.9663
Pølsebane Trippeltall sterk vind1.1301
Motvind Singeltall1.0848
Medvind Singeltall1.1876
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Coastal/Long Distance547.81.0952
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind553.11.0848
Predominantly Downwind505.21.1876
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore466.01.2874
Cape Doctor Coastal394.01.5228
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9533
Triple Number Coastal/Long Distance Medium1.1813
Triple Number Coastal/Long Distance High1.3644
Triple Number Windward/Leeward Low0.7542
Triple Number Windward/Leeward Medium0.9663
Triple Number Windward/Leeward High1.1301
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9533
Triple Number Coastal/Long Distance Medium1.1813
Triple Number Coastal/Long Distance High1.3644
Triple Number Windward/Leeward Low0.7542
Triple Number Windward/Leeward Medium0.9663
Triple Number Windward/Leeward High1.1301
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance547.81.0952
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Predominantly Upwind553.11.0848
Predominantly Downwind505.21.1876
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1267.4870.3680.7588.4528.8489.8453.0389.9365.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance547.81.0952
Triple Number Coastal/Long Distance Low629.40.9533
Triple Number Coastal/Long Distance Medium507.91.1813
Triple Number Coastal/Long Distance High439.81.3644
Triple Number Windward/Leeward Low795.50.7542
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1267.4870.3680.7588.4528.8489.8453.0389.9365.9
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low629.40.9533
Triple Number AP Medium508.01.1812
Triple Number AP High439.81.3644
Triple Number Windward/Leeward Low829.40.7234
Triple Number Windward/Leeward Medium620.90.9663
Triple Number Windward/Leeward High530.91.1301
Single Number Predominant Upwind569.31.0540
Single Number Predominant Reaching496.31.2091
Single Number Predominant Downwind519.51.1550
Predominant Upwind - Low747.20.8030
Predominant Upwind - Low/Med597.01.0050
Predominant Upwind - Medium540.61.1098
Predominant Upwind - Med/High501.41.1966
Predominant Upwind - High478.21.2547
Predominant Downwind Low742.80.8078
Predominant Downwind Low/Med573.21.0468
Predominant Downwind Medium493.51.2157
Predominant Downwind Med/High419.51.4301
Predominant Downwind High361.51.6599
Predominant Reaching Low670.00.8955
Predominant Reaching Low/Med535.91.1195
Predominant Reaching Medium474.31.2651
Predominant Reaching Med/High418.81.4328
Predominant Reaching High381.91.5712
SA/DSPL Upwind35.23SA/DSPL Downwind88.99
Scoring OptionTODTOT
5-Band Windward/Leeward Low917.50.6540
5-Band Windward/Leeward Low/Med699.00.8584
5-Band Windward/Leeward Medium611.50.9812
5-Band Windward/Leeward Med/High545.71.0995
5-Band Windward/Leeward High491.61.2204
Windward/Leeward 60-40 Low922.10.6507
Windward/Leeward 60-40 Low/Med706.90.8488
Windward/Leeward 60-40 Medium624.40.9609
Windward/Leeward 60-40 Med/High566.61.0589
Windward/Leeward 60-40 High522.41.1486
5-Band AP Low684.30.8769
5-Band AP Low/Med563.91.0641
5-Band AP Medium500.61.1985
5-Band AP Med/High450.11.3331
5-Band AP High412.41.4548
5-Band SF Bay Tour - Low796.70.7531
5-Band SF Bay Tour - Low/Med668.90.8970
5-Band SF Bay Tour - Medium588.41.0197
5-Band SF Bay Tour - Med/High528.41.1355
5-Band SF Bay Tour - High482.51.2435
Chicago-Mac Upwind1.0242
Chicago-Mac All Purpose1.0660
Chicago-Mac Downwind1.1057
Bayview-Mac Cove Island0.8060
Bayview-Mac Shore0.8109
Harvest Moon Regatta428.51.4002
ORC Ref  03430003VPEIssued on 16/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
VikingCAN 1047
Portsmouth Olympic Harbour
53 Yonge Street
Kingston, Ontario
Canada K7M 6G4
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassHenderson 30Measurement19/06/2025HINPlan reviewHull constructionCoredCarbon rudderYesLight stanchionsNoTrim tabNo
LOA9.388Max. Beam2.993Draft2.126Displacement1,826Wetted area14.96IMS L8.683LSM07.955Acc. length9.388Sink (kg/mm) 11.69
VCGD-0.393VCGM-0.346RM Rated (kg·m) 53.4Limit of positive stability(°) N/AStability IndexN/ADefault crew weight497Declared crew weight572
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerNoMainsail furlerArticulated bowspritYesNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1CheckstaysSpreaders2Rotating mastNo
P11.630IG11.310ISP12.880MDT10.088MDL10.145MDT20.067MDL20.109TL1.845MW0.143GO0.149
E4.395J3.370BAS1.229FSDNo FoilSFJ0.110SPLWPLTPS5.410BD0.127MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date20/06/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03430003VPEIssued on 16/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
VikingCAN 1047
Portsmouth Olympic Harbour
53 Yonge Street
Kingston, Ontario
Canada K7M 6G4
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMN-A0.881.482.243.223.9234.82
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ1-A0.050.440.851.652.383.1711.08NoNo 17.92
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA2-A14.8511.9713.418.719.1995%98.41
ORC Ref  03430003VPEIssued on 16/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org