Double HandedClub Certificate2025
ChinookRSA-688
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
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 Angles44.0°44.0°41.9°40.5°39.9°39.5°39.3°39.4°40.5°
Beat VMG2.453.444.244.785.055.175.245.295.20
52°3.855.286.367.027.337.477.557.627.60
60°4.125.596.647.277.587.727.807.897.90
75°4.325.816.857.477.818.028.168.338.42
90°4.195.696.787.467.878.168.418.789.02
110°3.544.996.227.147.718.118.489.209.72
120°3.284.685.926.897.557.998.389.2010.16
135°2.764.045.246.257.077.658.068.859.80
150°2.293.404.485.436.226.937.488.218.96
Run VMG1.982.953.884.705.536.296.967.918.64
Gybe Angles144.2°144.2°145.3°146.2°170.8°172.1°173.7°176.8°176.4°
APH ToD:571.3CDL: 9.980APH ToT: 1.0502CertNo:ZAD033
BOAT
ClassFarr 38 MODDesignerFarrBuilderFarrAge date01/1981Series date01/1978Offset filefarr38-rsa688.offData fileRSA688
HULL
Length Overall12.394 mMaximum Beam3.714 mDraft1.996 mDisplacement6,334 kgDLR4.5221IMS DivisionPerformanceDynamic Allowance0.330%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.385m
CREW
Maximum weight150 kg(declared)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail39.7140.27Headsail Luffed34.0334.03Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail12.67Storm Jib8.80Heavy Weather Jib23.75
SAIL LIMITS
Headsails6Spinnakers0
✱ No spinnaker pole aboard
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.
Double HandedClub Certificate2025
ChinookRSA-688
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
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 VMG1470.01047.9848.8753.4713.6695.8687.0681.0691.7
52°934.9682.0566.3512.7491.0482.1477.1472.6473.6
60°873.5644.5541.9494.9475.1466.3461.4456.5455.7
75°834.3620.1525.5482.0461.2448.9441.2432.1427.5
90°859.1633.1531.2482.3457.5441.0428.1409.8399.2
110°1017.5721.1578.8504.5466.8443.7424.4391.1370.5
120°1098.4768.5608.4522.5476.6450.3429.6391.3354.3
135°1305.9890.4687.0575.9509.1470.8446.7406.7367.3
150°1571.71057.7804.1663.4578.7519.1481.5438.4401.8
Run VMG1820.21221.3928.5766.1651.2572.3516.9455.3416.7
Selected Courses
Windward / Leeward1642.51134.6888.7759.8682.4634.1602.0568.2554.2
All purpose1218.1857.3684.2595.1546.7517.5498.1474.0459.7
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward717.70.8360
All purpose571.31.0502
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.30.9550
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1786.11143.3835.2678.6587.1538.9503.7451.4433.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7738
Downwind "popa"0.8216
70% up, 30% down "Ilhabela"0.7876
30% up, 70% down "Ilhabela-inverso"0.8067
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Predominantly Upwind605.60.9908
Predominantly Downwind601.00.9983
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low770.80.7785
Triple Number AP Medium567.11.0581
Triple Number AP High493.91.2148
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Single Number Predominant Upwind632.70.9484
Single Number Predominant Reaching569.91.0527
Single Number Predominant Downwind635.10.9448
Predominant Upwind - Low904.00.6638
Predominant Upwind - Low/Med671.20.8939
Predominant Upwind - Medium582.21.0305
Predominant Upwind - Med/High539.41.1124
Predominant Upwind - High523.01.1472
Predominant Downwind Low1002.80.5983
Predominant Downwind Low/Med705.60.8504
Predominant Downwind Medium574.41.0446
Predominant Downwind Med/High493.71.2153
Predominant Downwind High453.81.3223
Predominant Reaching Low837.60.7163
Predominant Reaching Low/Med614.70.9760
Predominant Reaching Medium523.61.1459
Predominant Reaching Med/High472.51.2698
Predominant Reaching High446.81.3428
SA/DSPL Upwind21.41SA/DSPL Downwind21.41
Scoring OptionTODTOT
5-Band Windward/Leeward Low1200.80.4997
5-Band Windward/Leeward Low/Med849.00.7067
5-Band Windward/Leeward Medium697.70.8600
5-Band Windward/Leeward Med/High608.50.9861
5-Band Windward/Leeward High571.61.0497
Windward/Leeward 60-40 Low1181.30.5079
Windward/Leeward 60-40 Low/Med844.10.7108
Windward/Leeward 60-40 Medium703.40.8530
Windward/Leeward 60-40 Med/High624.70.9604
Windward/Leeward 60-40 High594.11.0100
5-Band AP Low874.60.6860
5-Band AP Low/Med658.00.9119
5-Band AP Medium557.21.0768
5-Band AP Med/High501.41.1966
5-Band AP High475.71.2613
5-Band SF Bay Tour - Low1016.60.5902
5-Band SF Bay Tour - Low/Med804.90.7455
5-Band SF Bay Tour - Medium669.10.8967
5-Band SF Bay Tour - Med/High593.31.0112
5-Band SF Bay Tour - High562.01.0676
Chicago-Mac Upwind0.9168
Chicago-Mac All Purpose0.9153
Chicago-Mac Downwind0.9018
Bayview-Mac Cove Island0.6398
Bayview-Mac Shore0.6481
Harvest Moon Regatta488.21.2289
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.30.9550
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1786.11143.3835.2678.6587.1538.9503.7451.4433.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.30.9550
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1786.11143.3835.2678.6587.1538.9503.7451.4433.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance628.3
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1786.11143.3835.2678.6587.1538.9503.7451.4433.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)628.30.9550
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1786.11143.3835.2678.6587.1538.9503.7451.4433.4
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9550
Triple Number Coastal/Long Distance Low0.7785
Triple Number Coastal/Long Distance Medium1.0582
Triple Number Coastal/Long Distance High1.2148
Triple Number Windward/Leeward Low0.5931
Triple Number Windward/Leeward Medium0.8412
Triple Number Windward/Leeward High1.0045
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1786.11143.3835.2678.6587.1538.9503.7451.4433.4
For information
General Purpose Handicap (GPH)648.8
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.30.9550
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1786.11143.3835.2678.6587.1538.9503.7451.4433.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.30.9550
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1786.11143.3835.2678.6587.1538.9503.7451.4433.4
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.30.9550
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1786.11143.3835.2678.6587.1538.9503.7451.4433.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low770.7
Triple Number Coastal/Long Distance Medium567.0
Triple Number Coastal/Long Distance High493.9
Triple Number Windward/Leeward Low1011.6
Triple Number Windward/Leeward Medium713.3
Triple Number Windward/Leeward High597.3
Predominantly Upwind605.6
Predominantly Downwind601.0
Predominantly Reaching561.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.30.9550
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1786.11143.3835.2678.6587.1538.9503.7451.4433.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7785
Triple Number Coastal/Long Distance Medium1.0582
Triple Number Coastal/Long Distance High1.2148
Triple Number Windward/Leeward Low0.5931
Triple Number Windward/Leeward Medium0.8412
Triple Number Windward/Leeward High1.0045
Coastal/Long Distance0.9550
Predominantly Upwind0.9908
Predominantly Downwind0.9983
For information
General Purpose Handicap (GPH)648.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7785
Tretall Distanseseilas Mellomvind1.0582
Tretall Distanseseilas Mye vind1.2148
Tretall Pølsebane Lite vind0.5931
Tretall Pølsebane Mellomvind0.8412
Tretall Pølsebane Mye vind1.0045
Distanseseilas ett tall1.0502
Enkeltall Motvind0.9908
Enkeltall Medvind0.9983
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Coastal/Long Distance628.30.9550
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind605.60.9908
Predominantly Downwind601.00.9983
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore558.41.0745
Cape Doctor Coastal464.01.2932
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7785
Triple Number Coastal/Long Distance Medium1.0582
Triple Number Coastal/Long Distance High1.2148
Triple Number Windward/Leeward Low0.5931
Triple Number Windward/Leeward Medium0.8412
Triple Number Windward/Leeward High1.0045
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7785
Triple Number Coastal/Long Distance Medium1.0582
Triple Number Coastal/Long Distance High1.2148
Triple Number Windward/Leeward Low0.5931
Triple Number Windward/Leeward Medium0.8412
Triple Number Windward/Leeward High1.0045
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.30.9550
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Predominantly Upwind605.60.9908
Predominantly Downwind601.00.9983
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1786.11143.3835.2678.6587.1538.9503.7451.4433.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.30.9550
Triple Number Coastal/Long Distance Low770.70.7785
Triple Number Coastal/Long Distance Medium567.01.0582
Triple Number Coastal/Long Distance High493.91.2148
Triple Number Windward/Leeward Low1011.60.5931
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1786.11143.3835.2678.6587.1538.9503.7451.4433.4
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low770.80.7785
Triple Number AP Medium567.11.0581
Triple Number AP High493.91.2148
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium713.30.8412
Triple Number Windward/Leeward High597.31.0045
Single Number Predominant Upwind632.70.9484
Single Number Predominant Reaching569.91.0527
Single Number Predominant Downwind635.10.9448
Predominant Upwind - Low904.00.6638
Predominant Upwind - Low/Med671.20.8939
Predominant Upwind - Medium582.21.0305
Predominant Upwind - Med/High539.41.1124
Predominant Upwind - High523.01.1472
Predominant Downwind Low1002.80.5983
Predominant Downwind Low/Med705.60.8504
Predominant Downwind Medium574.41.0446
Predominant Downwind Med/High493.71.2153
Predominant Downwind High453.81.3223
Predominant Reaching Low837.60.7163
Predominant Reaching Low/Med614.70.9760
Predominant Reaching Medium523.61.1459
Predominant Reaching Med/High472.51.2698
Predominant Reaching High446.81.3428
SA/DSPL Upwind21.41SA/DSPL Downwind21.41
Scoring OptionTODTOT
5-Band Windward/Leeward Low1200.80.4997
5-Band Windward/Leeward Low/Med849.00.7067
5-Band Windward/Leeward Medium697.70.8600
5-Band Windward/Leeward Med/High608.50.9861
5-Band Windward/Leeward High571.61.0497
Windward/Leeward 60-40 Low1181.30.5079
Windward/Leeward 60-40 Low/Med844.10.7108
Windward/Leeward 60-40 Medium703.40.8530
Windward/Leeward 60-40 Med/High624.70.9604
Windward/Leeward 60-40 High594.11.0100
5-Band AP Low874.60.6860
5-Band AP Low/Med658.00.9119
5-Band AP Medium557.21.0768
5-Band AP Med/High501.41.1966
5-Band AP High475.71.2613
5-Band SF Bay Tour - Low1016.60.5902
5-Band SF Bay Tour - Low/Med804.90.7455
5-Band SF Bay Tour - Medium669.10.8967
5-Band SF Bay Tour - Med/High593.31.0112
5-Band SF Bay Tour - High562.01.0676
Chicago-Mac Upwind0.9168
Chicago-Mac All Purpose0.9153
Chicago-Mac Downwind0.9018
Bayview-Mac Cove Island0.6398
Bayview-Mac Shore0.6481
Harvest Moon Regatta488.21.2289
Double HandedClub Certificate2025
ChinookRSA-688
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFarr 38 MODMeasurement26/01/2024HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA12.394Max. Beam3.714Draft1.996Displacement6,334Wetted area29.44IMS L11.202LSM011.187Acc. length12.070Sink (kg/mm) 21.73
VCGD0.072VCGM0.073RM Rated (kg·m) 161.0Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weight150
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.385PBW0.100PIPA0.0057
PSD0.025PHD0.070PHL0.143
PSA22.0°ESL1.004
ST10.017ST20.105ST30.105
ST40.055ST50.178
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders1Rotating mastNo
P13.450IG13.164ISP15.116MDT10.118MDL10.175MDT2MDL2TLTaperMW0.175GO0.205
E5.380J4.100BAS1.660FSDFoilSFJ0.155SPLWPLTPS4.830BD0.205MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date10/02/2017
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
ChinookRSA-688
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA0.170.931.713.064.2739.7107/04/2021
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentG20.050.631.262.654.115.5812.54NoNo 34.0309/07/2024Was labeled J2 on current ORC CertifacteJ30.090.541.052.023.003.9012.52YesNo 25.1226/01/2024