Double HandedClub Certificate2025
ARIAITA-17746
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
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 Angles43.8°43.8°41.8°40.4°39.9°40.0°40.1°41.2°44.0°
Beat VMG2.453.424.184.644.844.924.954.894.61
52°3.865.236.236.827.077.187.237.257.12
60°4.125.536.497.067.337.447.517.567.48
75°4.325.746.697.247.597.827.968.128.15
90°4.485.986.997.517.798.008.298.678.87
110°4.365.886.957.618.148.608.929.539.92
120°4.085.636.807.518.078.639.2010.1711.21
135°3.585.046.257.127.698.258.8310.3112.97
150°2.954.245.396.377.107.618.099.1210.85
Run VMG2.553.674.675.516.166.657.087.929.40
Gybe Angles142.9°142.9°147.1°149.5°151.7°155.8°159.5°156.5°139.3°
APH ToD:554.0CDL: 8.834APH ToT: 1.0831CertNo:25/1
BOAT
ClassItalia 10.98DesignerCossuttiBuilderBaruffaldiAge date08/2016Series date03/2011Offset fileIY1098.OFFData fileI17746
HULL
Length Overall10.888 mMaximum Beam3.654 mDraft1.914 mDisplacement4,487 kgDLR5.2494IMS DivisionCruiser/RacerDynamic Allowance0.200%Age Allowance0.455%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.381m
CREW
Maximum weight170 kg(declared)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail37.1637.86Headsail Luffed29.9829.98Headsail FlyingSymmetricAsymmetric80.3580.35 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail11.28Storm Jib9.83Heavy Weather Jib26.55
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  03190003I0WIssued on 04/02/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Double HandedClub Certificate2025
ARIAITA-17746
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
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 VMG1467.51054.1861.8775.3744.2732.3728.0736.1781.2
52°933.3688.0578.0528.1509.0501.7497.8496.5505.9
60°872.8651.4554.5509.9491.3483.8479.4476.1481.2
75°833.7627.1538.4496.9474.6460.3452.3443.1441.7
90°804.2601.8515.2479.5461.9450.3434.2415.2406.1
110°826.3612.3517.8473.2442.1418.4403.5377.8362.8
120°881.9639.4529.2479.6446.0417.2391.1353.8321.2
135°1004.3714.1576.0506.0467.9436.2407.5349.3277.6
150°1220.3849.7667.9565.5506.9473.0445.1394.6331.7
Run VMG1409.2981.2771.3653.0584.1541.3508.5454.7383.0
Selected Courses
Windward / Leeward1437.91017.6816.6714.1664.1636.8618.2595.4582.1
All purpose1078.0777.6637.6569.6535.5514.7499.2477.7465.2
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward693.60.8651
All purpose554.01.0831
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.10.9932
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.81014.0766.6642.4573.7535.7502.4449.1431.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7458
Downwind "popa"0.9346
70% up, 30% down "Ilhabela"0.7939
30% up, 70% down "Ilhabela-inverso"0.8686
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Predominantly Upwind605.00.9917
Predominantly Downwind557.31.0765
Custom scoring options for Canada
Scoring OptionTODTOT
TriNum AP Low707.60.8479
TriNum AP Med550.21.0904
TriNum AP High495.01.2121
TriNum W/L Low959.00.6257
TriNum W/L Med686.70.8738
TriNum W/L Hig614.30.9767
Predom. Upwind630.80.9511
Predom. Reaching544.21.1024
Predom. Downwind581.21.0324
Predom. Up Low860.60.6972
Predom. Up L/M658.00.9119
Predom. Up Med586.71.0226
Predom. Up M/H555.01.0812
Predom. Up High543.91.1032
Predom. Dn Low849.90.7060
Predom. Dn L/M629.30.9535
Predom. Dn Med538.91.1133
Predom. Dn M/H481.01.2473
Predom. Dn High439.21.3660
Predom. Rc Low751.80.7981
Predom. Rc L/M576.41.0409
Predom. Rc Med510.21.1760
Predom. Rc M/H469.11.2790
Predom. Rc High440.81.3612
SA/DSPL Upwind24.56SA/DSPL Downwind42.98
Scoring OptionTODTOT
5B W/L Low1072.50.5594
5B W/L L/M787.60.7619
5B W/L Med676.70.8867
5B W/L M/H621.40.9656
5B W/L High597.01.0050
W/L 60-40 Low1079.90.5556
W/L 60-40 L/M798.50.7514
W/L 60-40 Med692.50.8664
W/L 60-40 M/H643.40.9326
W/L 60-40 High626.10.9583
5B AP Low780.00.7692
5B AP L/M619.20.9690
5B AP Med543.11.1047
5B AP M/H501.31.1970
5B AP High479.31.2519
5B SF Bay Low923.60.6496
5B SF Bay L/M753.00.7968
5B SF Bay Med651.80.9205
5B SF Bay M/H601.50.9975
5B SF Bay High579.01.0363
Chicago-Mac Upwind0.9248
Chicago-Mac All Purpose0.9630
Chicago-Mac Downwind0.9948
BayMac Cove Island853.00.7034
BayMac Shore846.30.7090
Harvest Moon470.61.2751
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.10.9932
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.81014.0766.6642.4573.7535.7502.4449.1431.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.10.9932
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.81014.0766.6642.4573.7535.7502.4449.1431.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance604.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.81014.0766.6642.4573.7535.7502.4449.1431.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating604.10.9932
FinRating, kevyt tuuli1050.70.9517
FinRating, kova tuuli480.31.0410
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9932
Triple Number Coastal/Long Distance Low0.8479
Triple Number Coastal/Long Distance Medium1.0906
Triple Number Coastal/Long Distance High1.2121
Triple Number Windward/Leeward Low0.6542
Triple Number Windward/Leeward Medium0.8738
Triple Number Windward/Leeward High0.9767
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.81014.0766.6642.4573.7535.7502.4449.1431.4
For information
General Purpose Handicap (GPH)620.8
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.10.9932
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.81014.0766.6642.4573.7535.7502.4449.1431.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.10.9932
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.81014.0766.6642.4573.7535.7502.4449.1431.4
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.10.9932
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.81014.0766.6642.4573.7535.7502.4449.1431.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low707.6
Triple Number Coastal/Long Distance Medium550.2
Triple Number Coastal/Long Distance High495.0
Triple Number Windward/Leeward Low917.2
Triple Number Windward/Leeward Medium686.7
Triple Number Windward/Leeward High614.3
Predominantly Upwind605.0
Predominantly Downwind557.3
Predominantly Reaching532.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.10.9932
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.81014.0766.6642.4573.7535.7502.4449.1431.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8479
Triple Number Coastal/Long Distance Medium1.0906
Triple Number Coastal/Long Distance High1.2121
Triple Number Windward/Leeward Low0.6542
Triple Number Windward/Leeward Medium0.8738
Triple Number Windward/Leeward High0.9767
Coastal/Long Distance0.9932
Predominantly Upwind0.9917
Predominantly Downwind1.0765
For information
General Purpose Handicap (GPH)620.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0831
Distanseseilas Trippeltall svak vind0.8479
Distanseseilas Trippeltall mellomvind1.0906
Distanseseilas Trippeltall sterk vind1.2121
Pølsebane Trippeltall svak vind0.6542
Pølsebane Trippeltall mellomvind0.8738
Pølsebane Trippeltall sterk vind0.9767
Motvind Singeltall0.9917
Medvind Singeltall1.0765
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Coastal/Long Distance604.10.9932
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind605.00.9917
Predominantly Downwind557.31.0765
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore586.11.0237
Cape Doctor Coastal469.01.2794
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8479
Triple Number Coastal/Long Distance Medium1.0906
Triple Number Coastal/Long Distance High1.2121
Triple Number Windward/Leeward Low0.6542
Triple Number Windward/Leeward Medium0.8738
Triple Number Windward/Leeward High0.9767
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8479
Triple Number Coastal/Long Distance Medium1.0906
Triple Number Coastal/Long Distance High1.2121
Triple Number Windward/Leeward Low0.6542
Triple Number Windward/Leeward Medium0.8738
Triple Number Windward/Leeward High0.9767
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.10.9932
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Predominantly Upwind605.00.9917
Predominantly Downwind557.31.0765
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.81014.0766.6642.4573.7535.7502.4449.1431.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.10.9932
Triple Number Coastal/Long Distance Low707.60.8479
Triple Number Coastal/Long Distance Medium550.21.0906
Triple Number Coastal/Long Distance High495.01.2121
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium686.70.8738
Triple Number Windward/Leeward High614.30.9767
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.81014.0766.6642.4573.7535.7502.4449.1431.4
Custom scoring options for United States of America
Scoring OptionTODTOT
TriNum AP Low707.60.8479
TriNum AP Med550.21.0904
TriNum AP High495.01.2121
TriNum W/L Low959.00.6257
TriNum W/L Med686.70.8738
TriNum W/L Hig614.30.9767
Predom. Upwind630.80.9511
Predom. Reaching544.21.1024
Predom. Downwind581.21.0324
Predom. Up Low860.60.6972
Predom. Up L/M658.00.9119
Predom. Up Med586.71.0226
Predom. Up M/H555.01.0812
Predom. Up High543.91.1032
Predom. Dn Low849.90.7060
Predom. Dn L/M629.30.9535
Predom. Dn Med538.91.1133
Predom. Dn M/H481.01.2473
Predom. Dn High439.21.3660
Predom. Rc Low751.80.7981
Predom. Rc L/M576.41.0409
Predom. Rc Med510.21.1760
Predom. Rc M/H469.11.2790
Predom. Rc High440.81.3612
SA/DSPL Upwind24.56SA/DSPL Downwind42.98
Scoring OptionTODTOT
5B W/L Low1072.50.5594
5B W/L L/M787.60.7619
5B W/L Med676.70.8867
5B W/L M/H621.40.9656
5B W/L High597.01.0050
W/L 60-40 Low1079.90.5556
W/L 60-40 L/M798.50.7514
W/L 60-40 Med692.50.8664
W/L 60-40 M/H643.40.9326
W/L 60-40 High626.10.9583
5B AP Low780.00.7692
5B AP L/M619.20.9690
5B AP Med543.11.1047
5B AP M/H501.31.1970
5B AP High479.31.2519
5B SF Bay Low923.60.6496
5B SF Bay L/M753.00.7968
5B SF Bay Med651.80.9205
5B SF Bay M/H601.50.9975
5B SF Bay High579.01.0363
Chicago-Mac Upwind0.9248
Chicago-Mac All Purpose0.9630
Chicago-Mac Downwind0.9948
BayMac Cove Island853.00.7034
BayMac Shore846.30.7090
Harvest Moon470.61.2751
ORC Ref  03190003I0WIssued on 04/02/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Double HandedClub Certificate2025
ARIAITA-17746
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassItalia 10.98Measurement26/07/2011HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.888Max. Beam3.654Draft1.914Displacement4,487Wetted area24.83IMS L9.615LSM09.490Acc. length10.888Sink (kg/mm) 19.15
VCGD-0.150VCGM-0.086RM Rated (kg·m) 138.9Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weight170
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.381PBW0.100PIPA0.0027
EDL2.142ST10.051ST20.150
ST30.150ST40.088ST50.285
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders2Rotating mastNo
P13.150IG13.950ISP14.030MDT10.125MDL10.186MDT20.123MDL20.146TL1.025MW0.185GO0.205
E4.900J3.930BAS1.700FSD0.033SFJ0.200SPLWPLTPS4.900BD0.221MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.150Flotation Date02/05/2024
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03190003I0WIssued on 04/02/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Double HandedClub Certificate2025
ARIAITA-17746
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA0.161.001.753.004.0037.1604/06/2021
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentA0.080.611.142.183.244.2913.74NoNo 29.9802/05/2024
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentB14.8313.8514.346.328.3476%80.3504/05/2022A15.3013.8014.556.656.25106%79.6604/06/2021
CRUISER/RACER REQUIREMENTS*
Accommodation length10.9 mTable area0.55 m²Headroom1.76 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity123 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity68 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  03190003I0WIssued on 04/02/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org