Club Certificate2025
CHEESE IVTUR 1957
Turkiye
Sailing
Federation
www.tyf.org.tr/
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 Angles42.2°42.2°39.3°37.3°36.7°36.2°35.7°35.8°37.1°
Beat VMG3.204.375.215.605.805.936.036.105.99
52°5.016.587.527.878.058.188.288.418.39
60°5.356.907.748.108.308.458.578.748.76
75°5.607.127.898.348.668.889.069.329.45
90°5.457.017.868.378.859.249.5410.0410.39
110°5.126.807.898.478.869.219.5510.7611.77
120°4.916.637.838.519.119.6010.0711.0311.96
135°4.265.987.348.158.869.6510.5812.4113.96
150°3.535.016.327.418.168.829.5811.6014.80
Run VMG3.054.345.476.427.197.808.3910.0412.82
Gybe Angles142.6°142.6°143.8°151.3°157.5°163.0°160.9°148.9°148.1°
APH ToD:473.6CDL: 11.414APH ToT: 1.2670CertNo:
BOAT
ClassFarr 40DesignerFarrBuilderCarrollAge date01/2000Series date01/1996Offset fileFARR40.OD.OFFData fileTUR1957
HULL
Length Overall12.415 mMaximum Beam3.956 mDraft2.592 mDisplacement4,948 kgDLR4.0226IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.407m
CREW
Maximum weight850 kg(declared)Minimum weight720 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail62.1863.96Headsail Luffed40.7940.79Headsail FlyingSymmetric154.68154.68Asymmetric
STORM SAIL AREAS (m²)
Trysail17.25Storm Jib13.13Heavy Weather Jib35.45
SAIL LIMITS
Headsails7Spinnakers5
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
IRC ENDORSED 04Apr25
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  04590003UV5Issued on 27/06/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
CHEESE IVTUR 1957
Turkiye
Sailing
Federation
www.tyf.org.tr/
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 VMG1125.9823.9691.1642.9620.3606.8597.5590.6600.9
52°718.7547.0478.9457.6447.2440.2434.7427.8428.9
60°672.7521.7465.2444.7433.9426.1419.9412.0410.7
75°642.9505.6456.2431.5415.6405.6397.4386.1381.0
90°660.0513.8458.3429.9406.9389.8377.3358.6346.4
110°702.5529.4456.4425.0406.5390.9376.8334.7305.9
120°732.7542.7459.6423.0395.1374.9357.4326.5301.0
135°845.1602.2490.4441.6406.2373.1340.3290.1257.9
150°1019.6717.9569.9485.9441.3407.9375.8310.4243.3
Run VMG1178.8829.0658.1560.5501.0461.7429.0358.5280.9
Selected Courses
Windward / Leeward1152.0826.4674.6601.7560.6534.2513.2474.5440.9
All purpose865.9637.9536.2490.2462.7443.3426.8397.4376.1
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward579.21.0359
All purpose473.61.2670
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance513.31.1690
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1222.8826.7637.3546.7492.5459.5430.8382.3359.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.9184
Downwind "popa"1.1060
70% up, 30% down "Ilhabela"0.9676
30% up, 70% down "Ilhabela-inverso"1.0421
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Predominantly Upwind511.61.1728
Predominantly Downwind476.01.2604
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low587.11.0220
Triple Number AP Medium473.21.2680
Triple Number AP High419.91.4290
Triple Number Windward/Leeward Low783.40.7659
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Single Number Predominant Upwind528.21.1359
Single Number Predominant Reaching464.81.2907
Single Number Predominant Downwind493.31.2164
Predominant Upwind - Low692.20.8668
Predominant Upwind - Low/Med550.61.0897
Predominant Upwind - Medium500.31.1994
Predominant Upwind - Med/High468.91.2797
Predominant Upwind - High450.71.3313
Predominant Downwind Low708.30.8471
Predominant Downwind Low/Med536.91.1175
Predominant Downwind Medium463.31.2950
Predominant Downwind Med/High406.51.4761
Predominant Downwind High362.71.6544
Predominant Reaching Low624.00.9616
Predominant Reaching Low/Med494.71.2128
Predominant Reaching Medium441.81.3581
Predominant Reaching Med/High400.61.4977
Predominant Reaching High372.11.6123
SA/DSPL Upwind35.27SA/DSPL Downwind74.29
Scoring OptionTODTOT
5-Band Windward/Leeward Low870.00.6897
5-Band Windward/Leeward Low/Med654.40.9168
5-Band Windward/Leeward Medium568.61.0553
5-Band Windward/Leeward Med/High514.21.1668
5-Band Windward/Leeward High475.41.2621
Windward/Leeward 60-40 Low869.20.6903
Windward/Leeward 60-40 Low/Med660.20.9088
Windward/Leeward 60-40 Medium580.01.0345
Windward/Leeward 60-40 Med/High531.31.1292
Windward/Leeward 60-40 High499.01.2023
5-Band AP Low643.80.9320
5-Band AP Low/Med524.11.1448
5-Band AP Medium467.21.2844
5-Band AP Med/High427.61.4031
5-Band AP High398.81.5045
5-Band SF Bay Tour - Low751.10.7988
5-Band SF Bay Tour - Low/Med625.80.9588
5-Band SF Bay Tour - Medium548.81.0932
5-Band SF Bay Tour - Med/High499.31.2018
5-Band SF Bay Tour - High464.81.2908
Chicago-Mac Upwind1.1055
Chicago-Mac All Purpose1.1409
Chicago-Mac Downwind1.1699
Bayview-Mac Cove Island0.8563
Bayview-Mac Shore0.8631
Harvest Moon Regatta408.41.4690
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance513.31.1690
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1222.8826.7637.3546.7492.5459.5430.8382.3359.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance513.31.1690
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1222.8826.7637.3546.7492.5459.5430.8382.3359.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance513.3
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1222.8826.7637.3546.7492.5459.5430.8382.3359.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating513.31.1690
FinRating, kevyt tuuli853.91.1711
FinRating, kova tuuli400.61.2481
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.1690
Triple Number Coastal/Long Distance Low1.0220
Triple Number Coastal/Long Distance Medium1.2681
Triple Number Coastal/Long Distance High1.4290
Triple Number Windward/Leeward Low0.7994
Triple Number Windward/Leeward Medium1.0395
Triple Number Windward/Leeward High1.1905
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1222.8826.7637.3546.7492.5459.5430.8382.3359.7
For information
General Purpose Handicap (GPH)527.0
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance513.31.1690
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1222.8826.7637.3546.7492.5459.5430.8382.3359.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance513.31.1690
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1222.8826.7637.3546.7492.5459.5430.8382.3359.7
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance513.31.1690
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1222.8826.7637.3546.7492.5459.5430.8382.3359.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low587.1
Triple Number Coastal/Long Distance Medium473.1
Triple Number Coastal/Long Distance High419.9
Triple Number Windward/Leeward Low750.6
Triple Number Windward/Leeward Medium577.2
Triple Number Windward/Leeward High504.0
Predominantly Upwind511.6
Predominantly Downwind476.0
Predominantly Reaching457.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance513.31.1690
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1222.8826.7637.3546.7492.5459.5430.8382.3359.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0220
Triple Number Coastal/Long Distance Medium1.2681
Triple Number Coastal/Long Distance High1.4290
Triple Number Windward/Leeward Low0.7994
Triple Number Windward/Leeward Medium1.0395
Triple Number Windward/Leeward High1.1905
Coastal/Long Distance1.1690
Predominantly Upwind1.1728
Predominantly Downwind1.2604
For information
General Purpose Handicap (GPH)527.0
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.2670
Distanseseilas Trippeltall svak vind1.0220
Distanseseilas Trippeltall mellomvind1.2681
Distanseseilas Trippeltall sterk vind1.4290
Pølsebane Trippeltall svak vind0.7994
Pølsebane Trippeltall mellomvind1.0395
Pølsebane Trippeltall sterk vind1.1905
Motvind Singeltall1.1728
Medvind Singeltall1.2604
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Coastal/Long Distance513.31.1690
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind511.61.1728
Predominantly Downwind476.01.2604
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore451.01.3304
Cape Doctor Coastal382.51.5687
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0220
Triple Number Coastal/Long Distance Medium1.2681
Triple Number Coastal/Long Distance High1.4290
Triple Number Windward/Leeward Low0.7994
Triple Number Windward/Leeward Medium1.0395
Triple Number Windward/Leeward High1.1905
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0220
Triple Number Coastal/Long Distance Medium1.2681
Triple Number Coastal/Long Distance High1.4290
Triple Number Windward/Leeward Low0.7994
Triple Number Windward/Leeward Medium1.0395
Triple Number Windward/Leeward High1.1905
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance513.31.1690
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Predominantly Upwind511.61.1728
Predominantly Downwind476.01.2604
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1222.8826.7637.3546.7492.5459.5430.8382.3359.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance513.31.1690
Triple Number Coastal/Long Distance Low587.11.0220
Triple Number Coastal/Long Distance Medium473.11.2681
Triple Number Coastal/Long Distance High419.91.4290
Triple Number Windward/Leeward Low750.60.7994
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1222.8826.7637.3546.7492.5459.5430.8382.3359.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low587.11.0220
Triple Number AP Medium473.21.2680
Triple Number AP High419.91.4290
Triple Number Windward/Leeward Low783.40.7659
Triple Number Windward/Leeward Medium577.21.0395
Triple Number Windward/Leeward High504.01.1905
Single Number Predominant Upwind528.21.1359
Single Number Predominant Reaching464.81.2907
Single Number Predominant Downwind493.31.2164
Predominant Upwind - Low692.20.8668
Predominant Upwind - Low/Med550.61.0897
Predominant Upwind - Medium500.31.1994
Predominant Upwind - Med/High468.91.2797
Predominant Upwind - High450.71.3313
Predominant Downwind Low708.30.8471
Predominant Downwind Low/Med536.91.1175
Predominant Downwind Medium463.31.2950
Predominant Downwind Med/High406.51.4761
Predominant Downwind High362.71.6544
Predominant Reaching Low624.00.9616
Predominant Reaching Low/Med494.71.2128
Predominant Reaching Medium441.81.3581
Predominant Reaching Med/High400.61.4977
Predominant Reaching High372.11.6123
SA/DSPL Upwind35.27SA/DSPL Downwind74.29
Scoring OptionTODTOT
5-Band Windward/Leeward Low870.00.6897
5-Band Windward/Leeward Low/Med654.40.9168
5-Band Windward/Leeward Medium568.61.0553
5-Band Windward/Leeward Med/High514.21.1668
5-Band Windward/Leeward High475.41.2621
Windward/Leeward 60-40 Low869.20.6903
Windward/Leeward 60-40 Low/Med660.20.9088
Windward/Leeward 60-40 Medium580.01.0345
Windward/Leeward 60-40 Med/High531.31.1292
Windward/Leeward 60-40 High499.01.2023
5-Band AP Low643.80.9320
5-Band AP Low/Med524.11.1448
5-Band AP Medium467.21.2844
5-Band AP Med/High427.61.4031
5-Band AP High398.81.5045
5-Band SF Bay Tour - Low751.10.7988
5-Band SF Bay Tour - Low/Med625.80.9588
5-Band SF Bay Tour - Medium548.81.0932
5-Band SF Bay Tour - Med/High499.31.2018
5-Band SF Bay Tour - High464.81.2908
Chicago-Mac Upwind1.1055
Chicago-Mac All Purpose1.1409
Chicago-Mac Downwind1.1699
Bayview-Mac Cove Island0.8563
Bayview-Mac Shore0.8631
Harvest Moon Regatta408.41.4690
ORC Ref  04590003UV5Issued on 27/06/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
CHEESE IVTUR 1957
Turkiye
Sailing
Federation
www.tyf.org.tr/
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFarr 40Measurement11/06/2015HINPlan reviewHull constructionCoredCarbon rudderYesLight stanchionsNoTrim tabNo
LOA12.415Max. Beam3.956Draft2.592Displacement4,948Wetted area27.64IMS L11.238LSM010.714Acc. length12.415Sink (kg/mm) 21.00
VCGD-0.346VCGM-0.342RM Rated (kg·m) 169.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight759Declared crew weight850
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.407PBWPIPA0.0035
EDL0.702ST10.042ST20.180
ST30.180ST40.112ST50.268
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P16.700IG16.184ISP18.280MDT10.121MDL10.240MDT20.090MDL20.104TL1.993MW0.240GO0.246
E5.900J4.710BAS1.750FSD0.034SFJSPL5.390WPLTPSBD0.225MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date29/05/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04590003UV5Issued on 27/06/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
CHEESE IVTUR 1957
Turkiye
Sailing
Federation
www.tyf.org.tr/
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment01.482.584.1862.18IRC ENDORSED 04Apr25
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.661.252.454.9416.42NoNo 40.79IRC ENDORSED 2025
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentA18.3618.3618.3610.209.75154.68IRC ENDORSED 2025
ORC Ref  04590003UV5Issued on 27/06/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org