Club 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 Angles44.6°44.6°42.2°40.5°39.2°38.5°38.2°38.2°38.8°
Beat VMG2.433.424.254.865.215.375.465.535.49
52°3.855.296.397.117.477.637.727.807.82
60°4.135.616.687.347.677.857.958.058.09
75°4.335.836.897.517.868.118.298.498.61
90°4.225.837.047.657.958.218.498.939.21
110°4.336.007.267.948.378.749.019.5610.06
120°4.205.867.167.888.388.879.3410.1311.03
135°3.625.196.557.518.078.589.1310.5212.36
150°3.014.345.556.627.467.978.409.3510.85
Run VMG2.613.764.815.736.476.967.368.129.39
Gybe Angles141.8°141.8°145.6°147.4°151.3°154.3°158.8°156.4°143.5°
APH ToD:529.6CDL: 10.342APH ToT: 1.1329CertNo:ZAC033
BOAT
ClassFarr 38 MODDesignerFarrBuilderFarrAge date01/1981Series date01/1978Offset filefarr38-rsa688.offData fileRSA688
HULL
Length Overall12.394 mMaximum Beam3.714 mDraft1.995 mDisplacement6,334 kgDLR4.4639IMS DivisionPerformanceDynamic Allowance0.260%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.385m
CREW
Maximum weight430 kg(declared)Minimum weight300 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail39.7140.27Headsail Luffed34.0334.03Headsail FlyingSymmetricAsymmetric113.05113.05 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail12.67Storm Jib8.80Heavy Weather Jib23.75
SAIL LIMITS
Headsails6Spinnakers5
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.
Club 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 VMG1480.31051.2846.2740.8690.3670.2659.5651.4656.0
52°934.3680.6563.5506.5482.1471.9466.6461.5460.6
60°870.7641.8538.8490.7469.1458.4453.1447.1445.1
75°832.2617.5522.7479.5457.7444.0434.4424.2418.1
90°853.6617.6511.3470.4452.9438.5424.2403.3391.0
110°830.8599.9495.6453.6429.9412.0399.5376.5357.9
120°857.2614.1503.0456.7429.5406.1385.4355.2326.4
135°994.9693.9549.7479.6446.0419.6394.3342.3291.3
150°1196.1829.7648.7543.8482.5451.7428.6385.0331.9
Run VMG1381.1958.0749.1627.9556.4517.6489.0443.5383.3
Selected Courses
Windward / Leeward1430.41004.6797.7684.4623.4593.9574.2547.4519.6
All purpose1078.9768.1620.7546.6508.7487.7472.3449.3428.7
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward657.50.9126
All purpose529.61.1329
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance577.71.0387
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01000.0748.2616.4543.0506.1476.4429.2408.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7910
Downwind "popa"0.9674
70% up, 30% down "Ilhabela"0.8368
30% up, 70% down "Ilhabela-inverso"0.9067
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Predominantly Upwind576.81.0403
Predominantly Downwind535.51.1204
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low694.40.8641
Triple Number AP Medium525.51.1418
Triple Number AP High467.51.2834
Triple Number Windward/Leeward Low942.80.6364
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Single Number Predominant Upwind603.20.9947
Single Number Predominant Reaching527.51.1374
Single Number Predominant Downwind560.61.0703
Predominant Upwind - Low856.40.7006
Predominant Upwind - Low/Med638.40.9398
Predominant Upwind - Medium556.21.0787
Predominant Upwind - Med/High517.61.1591
Predominant Upwind - High500.01.2001
Predominant Downwind Low837.70.7163
Predominant Downwind Low/Med608.50.9860
Predominant Downwind Medium515.31.1643
Predominant Downwind Med/High459.71.3052
Predominant Downwind High421.41.4239
Predominant Reaching Low750.40.7995
Predominant Reaching Low/Med560.91.0697
Predominant Reaching Medium490.01.2245
Predominant Reaching Med/High448.61.3374
Predominant Reaching High420.51.4270
SA/DSPL Upwind21.41SA/DSPL Downwind44.35
Scoring OptionTODTOT
5-Band Windward/Leeward Low1059.40.5664
5-Band Windward/Leeward Low/Med762.50.7869
5-Band Windward/Leeward Medium639.10.9389
5-Band Windward/Leeward Med/High577.21.0396
5-Band Windward/Leeward High547.31.0964
Windward/Leeward 60-40 Low1069.00.5613
Windward/Leeward 60-40 Low/Med773.20.7760
Windward/Leeward 60-40 Medium652.40.9197
Windward/Leeward 60-40 Med/High594.21.0097
Windward/Leeward 60-40 High568.51.0554
5-Band AP Low769.20.7800
5-Band AP Low/Med599.81.0004
5-Band AP Medium517.71.1589
5-Band AP Med/High474.11.2656
5-Band AP High449.71.3342
5-Band SF Bay Tour - Low909.80.6595
5-Band SF Bay Tour - Low/Med728.30.8238
5-Band SF Bay Tour - Medium615.30.9752
5-Band SF Bay Tour - Med/High558.61.0741
5-Band SF Bay Tour - High530.31.1314
Chicago-Mac Upwind0.9627
Chicago-Mac All Purpose0.9987
Chicago-Mac Downwind1.0301
Bayview-Mac Cove Island0.7163
Bayview-Mac Shore0.7208
Harvest Moon Regatta456.21.3152
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance577.71.0387
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01000.0748.2616.4543.0506.1476.4429.2408.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance577.71.0387
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01000.0748.2616.4543.0506.1476.4429.2408.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance577.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01000.0748.2616.4543.0506.1476.4429.2408.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating577.71.0387
FinRating, kevyt tuuli1039.20.9623
FinRating, kova tuuli451.21.1082
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0387
Triple Number Coastal/Long Distance Low0.8641
Triple Number Coastal/Long Distance Medium1.1420
Triple Number Coastal/Long Distance High1.2834
Triple Number Windward/Leeward Low0.6658
Triple Number Windward/Leeward Medium0.9219
Triple Number Windward/Leeward High1.0543
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01000.0748.2616.4543.0506.1476.4429.2408.2
For information
General Purpose Handicap (GPH)597.4
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance577.71.0387
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01000.0748.2616.4543.0506.1476.4429.2408.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance577.71.0387
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01000.0748.2616.4543.0506.1476.4429.2408.2
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance577.71.0387
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01000.0748.2616.4543.0506.1476.4429.2408.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low694.4
Triple Number Coastal/Long Distance Medium525.4
Triple Number Coastal/Long Distance High467.5
Triple Number Windward/Leeward Low901.2
Triple Number Windward/Leeward Medium650.8
Triple Number Windward/Leeward High569.1
Predominantly Upwind576.8
Predominantly Downwind535.5
Predominantly Reaching513.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance577.71.0387
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01000.0748.2616.4543.0506.1476.4429.2408.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8641
Triple Number Coastal/Long Distance Medium1.1420
Triple Number Coastal/Long Distance High1.2834
Triple Number Windward/Leeward Low0.6658
Triple Number Windward/Leeward Medium0.9219
Triple Number Windward/Leeward High1.0543
Coastal/Long Distance1.0387
Predominantly Upwind1.0403
Predominantly Downwind1.1204
For information
General Purpose Handicap (GPH)597.4
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1329
Distanseseilas Trippeltall svak vind0.8641
Distanseseilas Trippeltall mellomvind1.1420
Distanseseilas Trippeltall sterk vind1.2834
Pølsebane Trippeltall svak vind0.6658
Pølsebane Trippeltall mellomvind0.9219
Pølsebane Trippeltall sterk vind1.0543
Motvind Singeltall1.0403
Medvind Singeltall1.1204
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Coastal/Long Distance577.71.0387
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind576.81.0403
Predominantly Downwind535.51.1204
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore528.01.1364
Cape Doctor Coastal434.91.3796
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8641
Triple Number Coastal/Long Distance Medium1.1420
Triple Number Coastal/Long Distance High1.2834
Triple Number Windward/Leeward Low0.6658
Triple Number Windward/Leeward Medium0.9219
Triple Number Windward/Leeward High1.0543
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8641
Triple Number Coastal/Long Distance Medium1.1420
Triple Number Coastal/Long Distance High1.2834
Triple Number Windward/Leeward Low0.6658
Triple Number Windward/Leeward Medium0.9219
Triple Number Windward/Leeward High1.0543
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance577.71.0387
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Predominantly Upwind576.81.0403
Predominantly Downwind535.51.1204
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01000.0748.2616.4543.0506.1476.4429.2408.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance577.71.0387
Triple Number Coastal/Long Distance Low694.40.8641
Triple Number Coastal/Long Distance Medium525.41.1420
Triple Number Coastal/Long Distance High467.51.2834
Triple Number Windward/Leeward Low901.20.6658
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01000.0748.2616.4543.0506.1476.4429.2408.2
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low694.40.8641
Triple Number AP Medium525.51.1418
Triple Number AP High467.51.2834
Triple Number Windward/Leeward Low942.80.6364
Triple Number Windward/Leeward Medium650.80.9219
Triple Number Windward/Leeward High569.11.0543
Single Number Predominant Upwind603.20.9947
Single Number Predominant Reaching527.51.1374
Single Number Predominant Downwind560.61.0703
Predominant Upwind - Low856.40.7006
Predominant Upwind - Low/Med638.40.9398
Predominant Upwind - Medium556.21.0787
Predominant Upwind - Med/High517.61.1591
Predominant Upwind - High500.01.2001
Predominant Downwind Low837.70.7163
Predominant Downwind Low/Med608.50.9860
Predominant Downwind Medium515.31.1643
Predominant Downwind Med/High459.71.3052
Predominant Downwind High421.41.4239
Predominant Reaching Low750.40.7995
Predominant Reaching Low/Med560.91.0697
Predominant Reaching Medium490.01.2245
Predominant Reaching Med/High448.61.3374
Predominant Reaching High420.51.4270
SA/DSPL Upwind21.41SA/DSPL Downwind44.35
Scoring OptionTODTOT
5-Band Windward/Leeward Low1059.40.5664
5-Band Windward/Leeward Low/Med762.50.7869
5-Band Windward/Leeward Medium639.10.9389
5-Band Windward/Leeward Med/High577.21.0396
5-Band Windward/Leeward High547.31.0964
Windward/Leeward 60-40 Low1069.00.5613
Windward/Leeward 60-40 Low/Med773.20.7760
Windward/Leeward 60-40 Medium652.40.9197
Windward/Leeward 60-40 Med/High594.21.0097
Windward/Leeward 60-40 High568.51.0554
5-Band AP Low769.20.7800
5-Band AP Low/Med599.81.0004
5-Band AP Medium517.71.1589
5-Band AP Med/High474.11.2656
5-Band AP High449.71.3342
5-Band SF Bay Tour - Low909.80.6595
5-Band SF Bay Tour - Low/Med728.30.8238
5-Band SF Bay Tour - Medium615.30.9752
5-Band SF Bay Tour - Med/High558.61.0741
5-Band SF Bay Tour - High530.31.1314
Chicago-Mac Upwind0.9627
Chicago-Mac All Purpose0.9987
Chicago-Mac Downwind1.0301
Bayview-Mac Cove Island0.7163
Bayview-Mac Shore0.7208
Harvest Moon Regatta456.21.3152
Club 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. Beam3.714Draft1.995Displacement6,334Wetted area29.50IMS L11.326LSM011.236Acc. length12.070Sink (kg/mm) 21.97
VCGD0.076VCGM0.077RM Rated (kg·m) 163.5Limit of positive stability(°) N/AStability IndexN/ADefault crew weight813Declared crew weight430
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
Club 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
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA216.6914.4915.598.708.71100%113.0509/07/2024New 2024 A2A315.1312.9914.067.248.5485%87.8815/02/2023