Double HandedClub Certificate2025
Sea OtterRSA-880
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 Angles43.9°43.9°41.7°40.8°40.4°40.5°40.8°41.9°44.5°
Beat VMG1.852.573.153.543.783.853.873.763.52
52°2.913.944.695.225.535.655.695.635.42
60°3.094.154.905.425.735.885.935.935.82
75°3.194.285.065.605.936.126.246.316.32
90°3.094.184.995.575.966.216.406.646.75
110°2.713.814.725.435.926.256.516.977.23
120°2.563.634.555.285.826.186.487.037.54
135°2.243.244.154.895.505.946.276.867.46
150°1.902.813.674.425.055.585.986.557.13
Run VMG1.642.433.203.894.525.075.556.226.74
Gybe Angles150.5°150.5°155.0°162.8°169.4°173.5°176.8°179.0°178.8°
APH ToD:744.1CDL: 5.923APH ToT: 0.8063CertNo:ZAD203
BOAT
ClassSadler 26DesignerDavid SadlerBuilderFortuna, Cape TownAge date01/1987Series date01/1981Offset fileSadler 26_DV.offData fileRSA880
HULL
Length Overall7.850 mMaximum Beam2.736 mDraft1.414 mDisplacement2,177 kgDLR6.3765IMS DivisionCruiser/RacerDynamic Allowance0.390%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeSolid 2 bladesDiameter0.250m
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail12.1412.33Headsail Luffed19.7019.70Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail3.58Storm Jib4.42Heavy Weather Jib11.92
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers0
✱ 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
Sea OtterRSA-880
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 VMG1944.81399.71144.11016.0953.6934.7931.2957.31022.1
52°1239.1914.8767.0689.6650.8636.7632.9639.7663.7
60°1163.9867.6734.6663.7627.8612.1607.2607.5618.6
75°1127.7840.5711.8643.4606.9588.0577.3570.1570.0
90°1166.3860.7721.0645.9604.5579.8562.8541.8533.2
110°1329.3945.9762.2663.6608.2576.2552.6516.7498.2
120°1406.8991.3790.7682.1618.7582.1555.9512.3477.5
135°1609.91110.2866.9735.6655.0605.7574.4525.2482.7
150°1895.51281.5979.9814.2712.4645.1602.2549.3504.9
Run VMG2193.91479.31125.9924.8796.9709.8648.7579.0533.7
Selected Courses
Windward / Leeward2066.11439.51135.0970.4875.3822.2789.9768.2777.9
All purpose1562.01108.6891.2775.0709.4673.9652.8633.8633.1
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward924.00.6494
All purpose744.10.8063
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance811.90.7390
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2216.31443.51069.3874.4759.9700.6658.5596.9586.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.5725
Downwind "popa"0.6705
70% up, 30% down "Ilhabela"0.5987
30% up, 70% down "Ilhabela-inverso"0.6377
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Predominantly Upwind800.20.7498
Predominantly Downwind767.10.7822
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low999.90.6000
Triple Number AP Medium737.60.8134
Triple Number AP High651.00.9217
Triple Number Windward/Leeward Low1349.00.4448
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Single Number Predominant Upwind837.70.7162
Single Number Predominant Reaching744.70.8056
Single Number Predominant Downwind809.30.7414
Predominant Upwind - Low1187.20.5054
Predominant Upwind - Low/Med887.90.6757
Predominant Upwind - Medium768.80.7805
Predominant Upwind - Med/High717.70.8360
Predominant Upwind - High713.10.8413
Predominant Downwind Low1260.10.4761
Predominant Downwind Low/Med894.50.6707
Predominant Downwind Medium733.10.8184
Predominant Downwind Med/High637.50.9411
Predominant Downwind High595.01.0084
Predominant Reaching Low1087.60.5517
Predominant Reaching Low/Med803.60.7466
Predominant Reaching Medium683.90.8774
Predominant Reaching Med/High619.10.9691
Predominant Reaching High593.51.0109
SA/DSPL Upwind18.91SA/DSPL Downwind18.91
Scoring OptionTODTOT
5-Band Windward/Leeward Low1520.80.3945
5-Band Windward/Leeward Low/Med1083.50.5538
5-Band Windward/Leeward Medium896.80.6691
5-Band Windward/Leeward Med/High798.90.7510
5-Band Windward/Leeward High773.60.7756
Windward/Leeward 60-40 Low1511.10.3971
Windward/Leeward 60-40 Low/Med1088.50.5512
Windward/Leeward 60-40 Medium912.40.6576
Windward/Leeward 60-40 Med/High826.80.7257
Windward/Leeward 60-40 High811.70.7392
5-Band AP Low1126.60.5326
5-Band AP Low/Med855.40.7014
5-Band AP Medium724.80.8278
5-Band AP Med/High657.90.9120
5-Band AP High637.00.9420
5-Band SF Bay Tour - Low1300.70.4613
5-Band SF Bay Tour - Low/Med1036.00.5791
5-Band SF Bay Tour - Medium866.60.6924
5-Band SF Bay Tour - Med/High782.10.7672
5-Band SF Bay Tour - High762.30.7871
Chicago-Mac Upwind0.6927
Chicago-Mac All Purpose0.7051
Chicago-Mac Downwind0.7099
Bayview-Mac Cove Island0.4991
Bayview-Mac Shore0.5042
Harvest Moon Regatta632.60.9485
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance811.90.7390
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2216.31443.51069.3874.4759.9700.6658.5596.9586.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance811.90.7390
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2216.31443.51069.3874.4759.9700.6658.5596.9586.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance811.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2216.31443.51069.3874.4759.9700.6658.5596.9586.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating811.90.7390
FinRating, kevyt tuuli1500.60.6664
FinRating, kova tuuli640.80.7803
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7390
Triple Number Coastal/Long Distance Low0.6000
Triple Number Coastal/Long Distance Medium0.8135
Triple Number Coastal/Long Distance High0.9217
Triple Number Windward/Leeward Low0.4661
Triple Number Windward/Leeward Medium0.6555
Triple Number Windward/Leeward High0.7596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2216.31443.51069.3874.4759.9700.6658.5596.9586.7
For information
General Purpose Handicap (GPH)844.0
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance811.90.7390
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2216.31443.51069.3874.4759.9700.6658.5596.9586.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance811.90.7390
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2216.31443.51069.3874.4759.9700.6658.5596.9586.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance811.90.7390
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2216.31443.51069.3874.4759.9700.6658.5596.9586.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low1000.0
Triple Number Coastal/Long Distance Medium737.6
Triple Number Coastal/Long Distance High651.0
Triple Number Windward/Leeward Low1287.3
Triple Number Windward/Leeward Medium915.3
Triple Number Windward/Leeward High789.9
Predominantly Upwind800.2
Predominantly Downwind767.1
Predominantly Reaching727.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance811.90.7390
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2216.31443.51069.3874.4759.9700.6658.5596.9586.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6000
Triple Number Coastal/Long Distance Medium0.8135
Triple Number Coastal/Long Distance High0.9217
Triple Number Windward/Leeward Low0.4661
Triple Number Windward/Leeward Medium0.6555
Triple Number Windward/Leeward High0.7596
Coastal/Long Distance0.7390
Predominantly Upwind0.7498
Predominantly Downwind0.7822
For information
General Purpose Handicap (GPH)844.0
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8063
Distanseseilas Trippeltall svak vind0.6000
Distanseseilas Trippeltall mellomvind0.8135
Distanseseilas Trippeltall sterk vind0.9217
Pølsebane Trippeltall svak vind0.4661
Pølsebane Trippeltall mellomvind0.6555
Pølsebane Trippeltall sterk vind0.7596
Motvind Singeltall0.7498
Medvind Singeltall0.7822
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Coastal/Long Distance811.90.7390
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind800.20.7498
Predominantly Downwind767.10.7822
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore775.00.7742
Cape Doctor Coastal633.30.9474
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6000
Triple Number Coastal/Long Distance Medium0.8135
Triple Number Coastal/Long Distance High0.9217
Triple Number Windward/Leeward Low0.4661
Triple Number Windward/Leeward Medium0.6555
Triple Number Windward/Leeward High0.7596
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6000
Triple Number Coastal/Long Distance Medium0.8135
Triple Number Coastal/Long Distance High0.9217
Triple Number Windward/Leeward Low0.4661
Triple Number Windward/Leeward Medium0.6555
Triple Number Windward/Leeward High0.7596
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance811.90.7390
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Predominantly Upwind800.20.7498
Predominantly Downwind767.10.7822
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2216.31443.51069.3874.4759.9700.6658.5596.9586.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance811.90.7390
Triple Number Coastal/Long Distance Low1000.00.6000
Triple Number Coastal/Long Distance Medium737.60.8135
Triple Number Coastal/Long Distance High651.00.9217
Triple Number Windward/Leeward Low1287.30.4661
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2216.31443.51069.3874.4759.9700.6658.5596.9586.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low999.90.6000
Triple Number AP Medium737.60.8134
Triple Number AP High651.00.9217
Triple Number Windward/Leeward Low1349.00.4448
Triple Number Windward/Leeward Medium915.30.6555
Triple Number Windward/Leeward High789.90.7596
Single Number Predominant Upwind837.70.7162
Single Number Predominant Reaching744.70.8056
Single Number Predominant Downwind809.30.7414
Predominant Upwind - Low1187.20.5054
Predominant Upwind - Low/Med887.90.6757
Predominant Upwind - Medium768.80.7805
Predominant Upwind - Med/High717.70.8360
Predominant Upwind - High713.10.8413
Predominant Downwind Low1260.10.4761
Predominant Downwind Low/Med894.50.6707
Predominant Downwind Medium733.10.8184
Predominant Downwind Med/High637.50.9411
Predominant Downwind High595.01.0084
Predominant Reaching Low1087.60.5517
Predominant Reaching Low/Med803.60.7466
Predominant Reaching Medium683.90.8774
Predominant Reaching Med/High619.10.9691
Predominant Reaching High593.51.0109
SA/DSPL Upwind18.91SA/DSPL Downwind18.91
Scoring OptionTODTOT
5-Band Windward/Leeward Low1520.80.3945
5-Band Windward/Leeward Low/Med1083.50.5538
5-Band Windward/Leeward Medium896.80.6691
5-Band Windward/Leeward Med/High798.90.7510
5-Band Windward/Leeward High773.60.7756
Windward/Leeward 60-40 Low1511.10.3971
Windward/Leeward 60-40 Low/Med1088.50.5512
Windward/Leeward 60-40 Medium912.40.6576
Windward/Leeward 60-40 Med/High826.80.7257
Windward/Leeward 60-40 High811.70.7392
5-Band AP Low1126.60.5326
5-Band AP Low/Med855.40.7014
5-Band AP Medium724.80.8278
5-Band AP Med/High657.90.9120
5-Band AP High637.00.9420
5-Band SF Bay Tour - Low1300.70.4613
5-Band SF Bay Tour - Low/Med1036.00.5791
5-Band SF Bay Tour - Medium866.60.6924
5-Band SF Bay Tour - Med/High782.10.7672
5-Band SF Bay Tour - High762.30.7871
Chicago-Mac Upwind0.6927
Chicago-Mac All Purpose0.7051
Chicago-Mac Downwind0.7099
Bayview-Mac Cove Island0.4991
Bayview-Mac Shore0.5042
Harvest Moon Regatta632.60.9485
Double HandedClub Certificate2025
Sea OtterRSA-880
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassSadler 26Measurement10/02/2023HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA7.850Max. Beam2.736Draft1.414Displacement2,177Wetted area15.01IMS L6.943LSM06.989Acc. length7.850Sink (kg/mm) 10.41
VCGD0.130VCGM0.137RM Rated (kg·m) 29.1Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeSolid 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.250PBWPIPA0.0065
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionFixedInner stayNone FittedMast materialSingle headsail furlerYesMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P8.115IG9.395ISP9.405MDT10.088MDL10.140MDT20.088MDL20.140TLMWGO
E2.520J3.060BAS1.270FSD0.035SFJSPL3.160WPLTPSBD0.105MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date14/02/2023
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
Sea OtterRSA-880
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment00.150.550.951.622.0812.1410/02/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.010.571.102.253.434.698.60NoNo 19.7010/02/2023
CRUISER/RACER REQUIREMENTS*
Accommodation length7.8 mTable area0.22 m²Headroom1.40 mMinimum number of berths2Personal gear stowage0.08 m³Fresh water capacity18 lMinimum number of seats in cockpit2Food stowage0.12 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.