Double HandedClub Certificate2025
SERIFA 2R445
Australian Sailing Ltd
Locked Bag 806
Milsons Point
NSW 1565
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 Angles42.9°42.9°41.7°40.9°40.7°40.5°40.4°40.8°42.6°
Beat VMG2.343.233.914.334.504.604.664.704.56
52°3.614.915.876.416.626.736.806.876.82
60°3.855.206.166.676.886.997.077.157.14
75°4.085.456.376.907.197.387.517.697.75
90°4.065.436.366.937.347.687.948.288.48
110°4.155.666.727.167.477.768.028.779.37
120°4.095.596.687.317.778.138.469.059.59
135°3.575.076.317.097.758.439.1210.1311.06
150°2.964.235.376.427.207.868.5510.1912.46
Run VMG2.563.664.655.566.336.927.518.8610.79
Gybe Angles138.3°138.3°148.0°149.9°157.0°161.3°160.0°154.0°150.3°
APH ToD:576.6CDL: 7.898APH ToT: 1.0406CertNo:3338
BOAT
ClassROSS 930DesignerROSBuilderAge date02/1983Series date01/1983Offset fileROSS930M_Tbulb.offData file3338
HULL
Length Overall9.300 mMaximum Beam2.810 mDraft2.084 mDisplacement2,303 kgDLR3.4019IMS DivisionCruiser/RacerDynamic Allowance0.190%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail27.4128.11Headsail Luffed15.5315.53Headsail FlyingSymmetric74.0074.00Asymmetric
STORM SAIL AREAS (m²)
Trysail8.09Storm Jib4.67Heavy Weather Jib12.60
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
Rig & Sails measured 2020 Weighted 2309kg
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
SERIFA 2R445
Australian Sailing Ltd
Locked Bag 806
Milsons Point
NSW 1565
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 VMG1538.31115.3920.6832.3799.3782.3772.5766.1789.1
52°997.9732.5613.1561.6543.9534.9529.5524.2528.0
60°935.5692.2584.9539.9523.5515.0509.3503.2503.9
75°882.9661.0565.0522.0500.9487.9479.2468.0464.3
90°886.2663.1566.0519.4490.4468.5453.2434.8424.6
110°866.7635.8536.0502.7481.8463.9449.0410.7384.3
120°881.0644.4538.6492.5463.2442.9425.7397.7375.6
135°1009.2710.4570.8507.6464.2426.8394.6355.3325.5
150°1214.9851.7670.6560.8499.8457.9421.0353.5289.0
Run VMG1405.3983.5774.3647.5568.6520.0479.1406.3333.6
Selected Courses
Windward / Leeward1471.31049.4847.5739.9683.9651.1625.8586.2561.3
All purpose1117.6808.3664.8595.1558.6535.0516.6489.0472.6
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward712.50.8421
All purpose576.61.0406
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.70.9559
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.31042.8796.0667.6597.1555.4520.6464.8446.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7013
Downwind "popa"0.9591
70% up, 30% down "Ilhabela"0.7629
30% up, 70% down "Ilhabela-inverso"0.8639
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Predominantly Upwind637.50.9412
Predominantly Downwind564.31.0632
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low736.60.8146
Triple Number AP Medium573.81.0457
Triple Number AP High510.81.1746
Triple Number Windward/Leeward Low990.00.6061
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Single Number Predominant Upwind663.00.9049
Single Number Predominant Reaching565.91.0602
Single Number Predominant Downwind588.51.0195
Predominant Upwind - Low906.30.6621
Predominant Upwind - Low/Med695.00.8633
Predominant Upwind - Medium618.40.9703
Predominant Upwind - Med/High579.31.0356
Predominant Upwind - High562.81.0662
Predominant Downwind Low869.40.6902
Predominant Downwind Low/Med642.90.9332
Predominant Downwind Medium545.31.1003
Predominant Downwind Med/High478.51.2538
Predominant Downwind High436.31.3751
Predominant Reaching Low789.10.7603
Predominant Reaching Low/Med603.80.9937
Predominant Reaching Medium529.51.1331
Predominant Reaching Med/High481.11.2472
Predominant Reaching High454.51.3200
SA/DSPL Upwind24.56SA/DSPL Downwind57.99
Scoring OptionTODTOT
5-Band Windward/Leeward Low1104.50.5432
5-Band Windward/Leeward Low/Med815.10.7361
5-Band Windward/Leeward Medium696.50.8615
5-Band Windward/Leeward Med/High628.30.9550
5-Band Windward/Leeward High588.81.0191
Windward/Leeward 60-40 Low1118.10.5366
Windward/Leeward 60-40 Low/Med832.20.7210
Windward/Leeward 60-40 Medium719.10.8344
Windward/Leeward 60-40 Med/High657.70.9123
Windward/Leeward 60-40 High625.20.9596
5-Band AP Low808.50.7421
5-Band AP Low/Med645.70.9293
5-Band AP Medium566.01.0600
5-Band AP Med/High518.61.1570
5-Band AP High490.91.2222
5-Band SF Bay Tour - Low955.30.6281
5-Band SF Bay Tour - Low/Med781.70.7676
5-Band SF Bay Tour - Medium674.70.8893
5-Band SF Bay Tour - Med/High613.70.9776
5-Band SF Bay Tour - High579.81.0349
Chicago-Mac Upwind0.8782
Chicago-Mac All Purpose0.9289
Chicago-Mac Downwind0.9795
Bayview-Mac Cove Island0.6792
Bayview-Mac Shore0.6831
Harvest Moon Regatta486.81.2327
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.70.9559
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.31042.8796.0667.6597.1555.4520.6464.8446.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.70.9559
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.31042.8796.0667.6597.1555.4520.6464.8446.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance627.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.31042.8796.0667.6597.1555.4520.6464.8446.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating627.70.9559
FinRating, kevyt tuuli1082.30.9240
FinRating, kova tuuli492.51.0152
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9559
Triple Number Coastal/Long Distance Low0.8146
Triple Number Coastal/Long Distance Medium1.0458
Triple Number Coastal/Long Distance High1.1746
Triple Number Windward/Leeward Low0.6326
Triple Number Windward/Leeward Medium0.8474
Triple Number Windward/Leeward High0.9720
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.31042.8796.0667.6597.1555.4520.6464.8446.0
For information
General Purpose Handicap (GPH)646.3
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.70.9559
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.31042.8796.0667.6597.1555.4520.6464.8446.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.70.9559
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.31042.8796.0667.6597.1555.4520.6464.8446.0
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.70.9559
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.31042.8796.0667.6597.1555.4520.6464.8446.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low736.6
Triple Number Coastal/Long Distance Medium573.7
Triple Number Coastal/Long Distance High510.8
Triple Number Windward/Leeward Low948.5
Triple Number Windward/Leeward Medium708.0
Triple Number Windward/Leeward High617.3
Predominantly Upwind637.5
Predominantly Downwind564.3
Predominantly Reaching547.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.70.9559
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.31042.8796.0667.6597.1555.4520.6464.8446.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8146
Triple Number Coastal/Long Distance Medium1.0458
Triple Number Coastal/Long Distance High1.1746
Triple Number Windward/Leeward Low0.6326
Triple Number Windward/Leeward Medium0.8474
Triple Number Windward/Leeward High0.9720
Coastal/Long Distance0.9559
Predominantly Upwind0.9412
Predominantly Downwind1.0632
For information
General Purpose Handicap (GPH)646.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0406
Distanseseilas Trippeltall svak vind0.8146
Distanseseilas Trippeltall mellomvind1.0458
Distanseseilas Trippeltall sterk vind1.1746
Pølsebane Trippeltall svak vind0.6326
Pølsebane Trippeltall mellomvind0.8474
Pølsebane Trippeltall sterk vind0.9720
Motvind Singeltall0.9412
Medvind Singeltall1.0632
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Coastal/Long Distance627.70.9559
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind637.50.9412
Predominantly Downwind564.31.0632
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore568.81.0548
Cape Doctor Coastal477.51.2566
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8146
Triple Number Coastal/Long Distance Medium1.0458
Triple Number Coastal/Long Distance High1.1746
Triple Number Windward/Leeward Low0.6326
Triple Number Windward/Leeward Medium0.8474
Triple Number Windward/Leeward High0.9720
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8146
Triple Number Coastal/Long Distance Medium1.0458
Triple Number Coastal/Long Distance High1.1746
Triple Number Windward/Leeward Low0.6326
Triple Number Windward/Leeward Medium0.8474
Triple Number Windward/Leeward High0.9720
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.70.9559
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Predominantly Upwind637.50.9412
Predominantly Downwind564.31.0632
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.31042.8796.0667.6597.1555.4520.6464.8446.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.70.9559
Triple Number Coastal/Long Distance Low736.60.8146
Triple Number Coastal/Long Distance Medium573.71.0458
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low948.50.6326
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.31042.8796.0667.6597.1555.4520.6464.8446.0
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low736.60.8146
Triple Number AP Medium573.81.0457
Triple Number AP High510.81.1746
Triple Number Windward/Leeward Low990.00.6061
Triple Number Windward/Leeward Medium708.00.8474
Triple Number Windward/Leeward High617.30.9720
Single Number Predominant Upwind663.00.9049
Single Number Predominant Reaching565.91.0602
Single Number Predominant Downwind588.51.0195
Predominant Upwind - Low906.30.6621
Predominant Upwind - Low/Med695.00.8633
Predominant Upwind - Medium618.40.9703
Predominant Upwind - Med/High579.31.0356
Predominant Upwind - High562.81.0662
Predominant Downwind Low869.40.6902
Predominant Downwind Low/Med642.90.9332
Predominant Downwind Medium545.31.1003
Predominant Downwind Med/High478.51.2538
Predominant Downwind High436.31.3751
Predominant Reaching Low789.10.7603
Predominant Reaching Low/Med603.80.9937
Predominant Reaching Medium529.51.1331
Predominant Reaching Med/High481.11.2472
Predominant Reaching High454.51.3200
SA/DSPL Upwind24.56SA/DSPL Downwind57.99
Scoring OptionTODTOT
5-Band Windward/Leeward Low1104.50.5432
5-Band Windward/Leeward Low/Med815.10.7361
5-Band Windward/Leeward Medium696.50.8615
5-Band Windward/Leeward Med/High628.30.9550
5-Band Windward/Leeward High588.81.0191
Windward/Leeward 60-40 Low1118.10.5366
Windward/Leeward 60-40 Low/Med832.20.7210
Windward/Leeward 60-40 Medium719.10.8344
Windward/Leeward 60-40 Med/High657.70.9123
Windward/Leeward 60-40 High625.20.9596
5-Band AP Low808.50.7421
5-Band AP Low/Med645.70.9293
5-Band AP Medium566.01.0600
5-Band AP Med/High518.61.1570
5-Band AP High490.91.2222
5-Band SF Bay Tour - Low955.30.6281
5-Band SF Bay Tour - Low/Med781.70.7676
5-Band SF Bay Tour - Medium674.70.8893
5-Band SF Bay Tour - Med/High613.70.9776
5-Band SF Bay Tour - High579.81.0349
Chicago-Mac Upwind0.8782
Chicago-Mac All Purpose0.9289
Chicago-Mac Downwind0.9795
Bayview-Mac Cove Island0.6792
Bayview-Mac Shore0.6831
Harvest Moon Regatta486.81.2327
Double HandedClub Certificate2025
SERIFA 2R445
Australian Sailing Ltd
Locked Bag 806
Milsons Point
NSW 1565
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassROSS 930Measurement14/11/2020HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.300Max. Beam2.810Draft2.084Displacement2,303Wetted area16.64IMS L8.815LSM08.780Acc. length9.133Sink (kg/mm) 12.49
VCGD-0.024VCGM-0.070RM Rated (kg·m) 48.5Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P10.750IG9.660ISP11.600MDT10.095MDL10.105MDT2MDL2TLTaperMWGO
E4.300J3.180BAS1.328FSDSFJSPL3.540WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date30/11/2020
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
SERIFA 2R445
Australian Sailing Ltd
Locked Bag 806
Milsons Point
NSW 1565
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.180.901.602.7027.4114/11/2020
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ10.080.470.881.623.059.80YesNo 15.5314/11/2020
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS212.6012.6012.607.106.8474.00S110.0010.0010.006.306.0052.0014/11/2020
CRUISER/RACER REQUIREMENTS*
Accommodation length9.1 mTable area0.44 m²Headroom1.63 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity62 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity32 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.