Club
Certificate
2024

Boat

KARYA YELKEN

TUR-1300

Turkiye
Sailing
Federation
www.tyf.org.tr/
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles42.6°40.6°38.9°36.8°36.3°36.0°36.3°37.8°
Beat VMG3.023.684.154.474.614.684.724.65
52°4.555.415.896.176.346.436.526.54
60°4.775.606.046.326.526.656.796.83
75°4.905.726.156.476.756.987.257.38
90°5.176.016.466.786.977.147.688.03
110°5.176.076.597.077.517.928.569.25
120°4.935.946.487.007.528.129.4510.76
135°4.385.446.176.657.157.709.3012.71
150°3.714.705.536.096.446.797.5710.80
Run VMG3.214.074.795.275.726.146.859.35
Gybe Angles144.7°146.9°147.4°149.6°173.7°176.2°175.9°139.8°
APH ToD:628.9CDL: 6.910APH ToT: 0.9541CertNo:
BOAT
ClassSURPRISEDesignerJOUBERT-NIVELTBuilderARCHAMBAULTAge date01/2009Series date01/1977Offset filesurprise.od.offData fileTUR1300
HULL
Length Overall7.640 mMaximum Beam2.384 mDraft1.586 mDisplacement1,373 kgDLR4.7281IMS DivisionSportboatDynamic Allowance0.180%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight340 kg(declared)Minimum weight210 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail18.0018.42Headsail Luffed11.3811.38Headsail FlyingSymmetricAsymmetric44.6844.68 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail5.26Storm Jib3.34Heavy Weather Jib9.02
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
OUTBOARD ENGINE 9.9 HP
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  04590003DF5Issued on 20/08/2024Valid until 31/12/2024
VPP ver: 2024 1.00 | © ORC | www.orc.org

Club
Certificate
2024

Boat

KARYA YELKEN

TUR-1300

Turkiye
Sailing
Federation
www.tyf.org.tr/
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1193.7979.4867.4805.6780.4769.1763.4774.6
52°791.0665.9611.0583.2567.6559.7551.8550.7
60°754.3643.1596.5570.0551.8541.0530.6527.0
75°734.1629.5585.1556.6533.0515.5496.8487.9
90°696.7598.6556.9531.2516.4504.2468.7448.3
110°695.7593.4546.6509.5479.1454.4420.4389.2
120°730.3606.0555.2514.5478.6443.2380.8334.5
135°822.2662.0583.0541.1503.8467.8387.1283.3
150°970.9765.5651.3591.3559.4530.3475.7333.3
Run VMG1121.1883.9752.0682.8629.2585.9525.6384.8
Selected Courses
Windward / Leeward1157.4931.6809.7744.2704.8677.5644.5579.7
All purpose889.6731.5652.7608.4580.1558.9525.7481.5
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward777.20.7720
All purpose628.90.9541
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance684.40.8767
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1153.8876.0732.5648.6602.5564.4498.1454.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6819
Downwind "popa"0.8107
70% up, 30% down "Ilhabela"0.7160
30% up, 70% down "Ilhabela-inverso"0.7672
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Predominantly Upwind681.90.8799
Predominantly Downwind639.80.9378
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low810.50.7403
Triple Number AP Medium626.40.9578
Triple Number AP High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Single Number Predominant Upwind680.60.8815
Single Number Predominant Reaching600.70.9988
Single Number Predominant Downwind640.70.9365
Predominant Upwind - Low898.70.6676
Predominant Upwind - Low/Med750.70.7993
Predominant Upwind - Medium660.00.9090
Predominant Upwind - Med/High612.30.9799
Predominant Upwind - High587.01.0221
Predominant Downwind Low885.40.6777
Predominant Downwind Low/Med722.90.8299
Predominant Downwind Medium618.80.9697
Predominant Downwind Med/High546.81.0974
Predominant Downwind High486.81.2325
Predominant Reaching Low790.60.7589
Predominant Reaching Low/Med663.30.9045
Predominant Reaching Medium584.21.0271
Predominant Reaching Med/High531.81.1283
Predominant Reaching High488.11.2292
SA/DSPL Upwind23.76SA/DSPL Downwind50.69
Scoring OptionTODTOT
5-Band Windward/Leeward Low1106.20.5424
5-Band Windward/Leeward Low/Med894.20.6710
5-Band Windward/Leeward Medium758.50.7910
5-Band Windward/Leeward Med/High682.20.8795
5-Band Windward/Leeward High639.00.9390
Windward/Leeward 60-40 Low1113.90.5386
Windward/Leeward 60-40 Low/Med904.60.6633
Windward/Leeward 60-40 Medium771.50.7777
Windward/Leeward 60-40 Med/High700.40.8567
Windward/Leeward 60-40 High664.50.9030
5-Band AP Low853.70.7028
5-Band AP Low/Med708.80.8465
5-Band AP Medium617.10.9722
5-Band AP Med/High561.01.0694
5-Band AP High523.81.1454
5-Band SF Bay Tour - Low1051.40.5707
5-Band SF Bay Tour - Low/Med854.70.7020
5-Band SF Bay Tour - Medium729.60.8224
5-Band SF Bay Tour - Med/High659.90.9093
5-Band SF Bay Tour - High618.80.9695
Chicago-Mac Upwind0.8637
Chicago-Mac All Purpose0.8906
Chicago-Mac Downwind0.9221
Bayview-Mac Cove Island0.8269
Bayview-Mac Shore0.8335
Harvest Moon Regatta542.01.1069
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance684.40.8767
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1153.8876.0732.5648.6602.5564.4498.1454.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance684.40.8767
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1153.8876.0732.5648.6602.5564.4498.1454.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance684.4
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1153.8876.0732.5648.6602.5564.4498.1454.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)684.40.8767
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1153.8876.0732.5648.6602.5564.4498.1454.3
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7403
Triple Number Coastal/Long Distance Medium0.9580
Triple Number Coastal/Long Distance High1.0874
Triple Number Windward/Leeward Low0.5744
Triple Number Windward/Leeward Medium0.7774
Triple Number Windward/Leeward High0.8929
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1153.8876.0732.5648.6602.5564.4498.1454.3
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance684.40.8767
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1153.8876.0732.5648.6602.5564.4498.1454.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance684.40.8767
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1153.8876.0732.5648.6602.5564.4498.1454.3
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance684.40.8767
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1153.8876.0732.5648.6602.5564.4498.1454.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low810.5
Triple Number Coastal/Long Distance Medium626.3
Triple Number Coastal/Long Distance High551.8
Triple Number Windward/Leeward Low1044.6
Triple Number Windward/Leeward Medium771.8
Triple Number Windward/Leeward High672.0
Predominantly Upwind681.9
Predominantly Downwind639.8
Predominantly Reaching610.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance684.40.8767
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1153.8876.0732.5648.6602.5564.4498.1454.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7403
Triple Number Coastal/Long Distance Medium0.9580
Triple Number Coastal/Long Distance High1.0874
Triple Number Windward/Leeward Low0.5744
Triple Number Windward/Leeward Medium0.7774
Triple Number Windward/Leeward High0.8929
Coastal/Long Distance0.8767
Predominantly Upwind0.8799
Predominantly Downwind0.9378
For information
General Purpose Handicap (GPH)706.5
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7403
Tretall Distanseseilas Mellomvind0.9580
Tretall Distanseseilas Mye vind1.0874
Tretall Pølsebane Lite vind0.5744
Tretall Pølsebane Mellomvind0.7774
Tretall Pølsebane Mye vind0.8929
Distanseseilas ett tall0.9541
Enkeltall Motvind0.8799
Enkeltall Medvind0.9378
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Coastal/Long Distance684.40.8767
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind681.90.8799
Predominantly Downwind639.80.9378
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore599.21.0014
Cape Doctor Coastal494.81.2126
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7403
Triple Number Coastal/Long Distance Medium0.9580
Triple Number Coastal/Long Distance High1.0874
Triple Number Windward/Leeward Low0.5744
Triple Number Windward/Leeward Medium0.7774
Triple Number Windward/Leeward High0.8929
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7403
Triple Number Coastal/Long Distance Medium0.9580
Triple Number Coastal/Long Distance High1.0874
Triple Number Windward/Leeward Low0.5744
Triple Number Windward/Leeward Medium0.7774
Triple Number Windward/Leeward High0.8929
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance684.40.8767
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Predominantly Upwind681.90.8799
Predominantly Downwind639.80.9378
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1153.8876.0732.5648.6602.5564.4498.1454.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance684.40.8767
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium626.30.9580
Triple Number Coastal/Long Distance High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1153.8876.0732.5648.6602.5564.4498.1454.3
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low810.50.7403
Triple Number AP Medium626.40.9578
Triple Number AP High551.81.0874
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium771.80.7774
Triple Number Windward/Leeward High672.00.8929
Single Number Predominant Upwind680.60.8815
Single Number Predominant Reaching600.70.9988
Single Number Predominant Downwind640.70.9365
Predominant Upwind - Low898.70.6676
Predominant Upwind - Low/Med750.70.7993
Predominant Upwind - Medium660.00.9090
Predominant Upwind - Med/High612.30.9799
Predominant Upwind - High587.01.0221
Predominant Downwind Low885.40.6777
Predominant Downwind Low/Med722.90.8299
Predominant Downwind Medium618.80.9697
Predominant Downwind Med/High546.81.0974
Predominant Downwind High486.81.2325
Predominant Reaching Low790.60.7589
Predominant Reaching Low/Med663.30.9045
Predominant Reaching Medium584.21.0271
Predominant Reaching Med/High531.81.1283
Predominant Reaching High488.11.2292
SA/DSPL Upwind23.76SA/DSPL Downwind50.69
Scoring OptionTODTOT
5-Band Windward/Leeward Low1106.20.5424
5-Band Windward/Leeward Low/Med894.20.6710
5-Band Windward/Leeward Medium758.50.7910
5-Band Windward/Leeward Med/High682.20.8795
5-Band Windward/Leeward High639.00.9390
Windward/Leeward 60-40 Low1113.90.5386
Windward/Leeward 60-40 Low/Med904.60.6633
Windward/Leeward 60-40 Medium771.50.7777
Windward/Leeward 60-40 Med/High700.40.8567
Windward/Leeward 60-40 High664.50.9030
5-Band AP Low853.70.7028
5-Band AP Low/Med708.80.8465
5-Band AP Medium617.10.9722
5-Band AP Med/High561.01.0694
5-Band AP High523.81.1454
5-Band SF Bay Tour - Low1051.40.5707
5-Band SF Bay Tour - Low/Med854.70.7020
5-Band SF Bay Tour - Medium729.60.8224
5-Band SF Bay Tour - Med/High659.90.9093
5-Band SF Bay Tour - High618.80.9695
Chicago-Mac Upwind0.8637
Chicago-Mac All Purpose0.8906
Chicago-Mac Downwind0.9221
Bayview-Mac Cove Island0.8269
Bayview-Mac Shore0.8335
Harvest Moon Regatta542.01.1069
ORC Ref  04590003DF5Issued on 20/08/2024Valid until 31/12/2024
VPP ver: 2024 1.00 | © ORC | www.orc.org

Club
Certificate
2024

Boat

KARYA YELKEN

TUR-1300

Turkiye
Sailing
Federation
www.tyf.org.tr/
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassSURPRISEMeasurement02/03/2019HINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA7.640Max. Beam2.384Draft1.586Displacement1,373Wetted area11.69IMS L6.948LSM06.621Acc. length7.640Sink (kg/mm) 8.95
VCGD-0.107VCGM-0.097RM Rated (kg·m) 31.1Limit of positive stability(°) N/AStability IndexN/ADefault crew weight382Declared crew weight340
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunners/Checkstays0Spreaders1Rotating mastNo
P9.050IG8.170ISP8.200MDT10.080MDL10.100MDT20.079MDL20.060TL1.950MW0.100GO0.100
E3.320J2.680BAS1.180FSDSFJSPLWPLTPS3.550BD0.109MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.120Flotation Date01/04/2004
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04590003DF5Issued on 20/08/2024Valid until 31/12/2024
VPP ver: 2024 1.00 | © ORC | www.orc.org

Club
Certificate
2024

Boat

KARYA YELKEN

TUR-1300

Turkiye
Sailing
Federation
www.tyf.org.tr/
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment00.160.731.272.142.8018.0019/08/2024
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.050.370.721.412.142.877.95YesNo 11.3819/08/2024
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment09.907.828.865.976.3894%44.6819/08/2024BLUE
ORC Ref  04590003DF5Issued on 20/08/2024Valid until 31/12/2024
VPP ver: 2024 1.00 | © ORC | www.orc.org