Club Certificate2025
GoshawkJPN 6958
JAPAN SAILING FEDERATION
4-2, Kasumigaokacho,
Shinjuku, Tokyo
Japan
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 Angles43.1°43.1°41.0°39.5°38.5°38.0°37.7°37.5°38.2°
Beat VMG2.954.094.985.595.926.096.206.316.29
52°4.626.247.398.118.468.638.738.858.88
60°4.946.597.718.378.718.888.989.119.16
75°5.196.867.938.558.929.179.349.569.67
90°5.026.747.928.588.959.289.569.9910.25
110°5.006.828.158.909.389.709.9810.4510.87
120°4.846.678.058.849.389.8710.3210.9511.55
135°4.306.037.448.439.049.5610.1011.3112.96
150°3.555.046.357.478.358.929.3810.3411.51
Run VMG3.084.375.506.477.257.798.249.039.97
Gybe Angles141.7°141.7°145.1°148.5°151.7°154.2°158.3°159.0°146.6°
APH ToD:467.2CDL: 13.076APH ToT: 1.2842CertNo:250440
BOAT
ClassSwan48DesignerGerman FreasBuilderNautorAge date02/2020Series date11/2019Offset fileSWAN-48-DK.offData fileJC250440
HULL
Length Overall14.767 mMaximum Beam4.564 mDraft3.004 mDisplacement14,500 kgDLR5.2205IMS DivisionCruiser/RacerDynamic Allowance0.180%Age Allowance0.195%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.508m
CREW
Maximum weight900 kg(declared)Minimum weight765 kg ✱ when appliedNon Manual PowerYesCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail79.0080.43Headsail Luffed61.8361.83Headsail FlyingSymmetricAsymmetric216.38216.38 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail22.99Storm Jib21.64Heavy Weather Jib58.41
SAIL LIMITS
Headsails7
✱ One set on the forestay
Spinnakers5
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
GoshawkJPN 6958
JAPAN SAILING FEDERATION
4-2, Kasumigaokacho,
Shinjuku, Tokyo
Japan
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 VMG1221.4881.2722.3644.3608.4590.9580.7570.1572.3
52°779.1577.1486.8444.0425.5417.3412.4406.8405.3
60°728.8546.4467.2430.3413.5405.5400.8395.1393.0
75°693.6525.1454.1420.9403.5392.5385.3376.7372.2
90°717.8534.3454.3419.5402.3388.1376.4360.2351.1
110°720.5527.6441.5404.5384.0371.0360.9344.5331.3
120°744.0539.7447.0407.0384.0364.7348.8328.7311.6
135°837.4597.4483.7427.2398.4376.5356.4318.3277.9
150°1013.7713.9567.2482.2431.0403.4383.6348.3312.7
Run VMG1170.7824.3654.9556.8496.5461.8437.2398.5361.0
Selected Courses
Windward / Leeward1195.8852.7688.6600.6552.5526.4508.9484.3466.7
All purpose905.9656.2540.0481.7451.1433.2420.2401.1386.7
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward577.71.0385
All purpose467.21.2842
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance508.61.1797
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1265.5849.9647.7542.1481.5449.3423.8384.7371.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.9135
Downwind "popa"1.0966
70% up, 30% down "Ilhabela"0.9616
30% up, 70% down "Ilhabela-inverso"1.0344
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Predominantly Upwind506.21.1853
Predominantly Downwind473.71.2665
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low598.11.0031
Triple Number AP Medium464.31.2923
Triple Number AP High416.31.4414
Triple Number Windward/Leeward Low804.40.7459
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Single Number Predominant Upwind526.51.1397
Single Number Predominant Reaching464.01.2930
Single Number Predominant Downwind493.71.2153
Predominant Upwind - Low724.90.8277
Predominant Upwind - Low/Med554.41.0822
Predominant Upwind - Medium490.31.2237
Predominant Upwind - Med/High458.21.3095
Predominant Upwind - High442.81.3551
Predominant Downwind Low716.50.8374
Predominant Downwind Low/Med533.51.1247
Predominant Downwind Medium457.61.3112
Predominant Downwind Med/High410.81.4604
Predominant Downwind High380.51.5769
Predominant Reaching Low641.50.9353
Predominant Reaching Low/Med492.11.2193
Predominant Reaching Medium434.51.3808
Predominant Reaching Med/High399.71.5011
Predominant Reaching High377.41.5899
SA/DSPL Upwind23.48SA/DSPL Downwind49.23
Scoring OptionTODTOT
5-Band Windward/Leeward Low897.50.6685
5-Band Windward/Leeward Low/Med661.60.9068
5-Band Windward/Leeward Medium563.81.0642
5-Band Windward/Leeward Med/High511.41.1733
5-Band Windward/Leeward High485.51.2358
Windward/Leeward 60-40 Low903.30.6642
Windward/Leeward 60-40 Low/Med669.60.8961
Windward/Leeward 60-40 Medium574.81.0439
Windward/Leeward 60-40 Med/High525.71.1414
Windward/Leeward 60-40 High502.91.1931
5-Band AP Low658.50.9112
5-Band AP Low/Med523.51.1462
5-Band AP Medium458.01.3100
5-Band AP Med/High421.71.4227
5-Band AP High401.91.4929
5-Band SF Bay Tour - Low774.70.7745
5-Band SF Bay Tour - Low/Med632.10.9493
5-Band SF Bay Tour - Medium542.91.1052
5-Band SF Bay Tour - Med/High495.31.2113
5-Band SF Bay Tour - High471.21.2734
Chicago-Mac Upwind1.1051
Chicago-Mac All Purpose1.1412
Chicago-Mac Downwind1.1719
Bayview-Mac Cove Island0.8381
Bayview-Mac Shore0.8435
Harvest Moon Regatta405.81.4786
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance508.61.1797
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1265.5849.9647.7542.1481.5449.3423.8384.7371.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance508.61.1797
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1265.5849.9647.7542.1481.5449.3423.8384.7371.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance508.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1265.5849.9647.7542.1481.5449.3423.8384.7371.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating508.61.1797
FinRating, kevyt tuuli880.41.1358
FinRating, kova tuuli404.41.2363
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.1797
Triple Number Coastal/Long Distance Low1.0031
Triple Number Coastal/Long Distance Medium1.2924
Triple Number Coastal/Long Distance High1.4414
Triple Number Windward/Leeward Low0.7785
Triple Number Windward/Leeward Medium1.0465
Triple Number Windward/Leeward High1.1903
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1265.5849.9647.7542.1481.5449.3423.8384.7371.0
For information
General Purpose Handicap (GPH)523.9
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance508.61.1797
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1265.5849.9647.7542.1481.5449.3423.8384.7371.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance508.61.1797
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1265.5849.9647.7542.1481.5449.3423.8384.7371.0
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance508.61.1797
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1265.5849.9647.7542.1481.5449.3423.8384.7371.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low598.1
Triple Number Coastal/Long Distance Medium464.3
Triple Number Coastal/Long Distance High416.3
Triple Number Windward/Leeward Low770.7
Triple Number Windward/Leeward Medium573.3
Triple Number Windward/Leeward High504.1
Predominantly Upwind506.2
Predominantly Downwind473.7
Predominantly Reaching454.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance508.61.1797
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1265.5849.9647.7542.1481.5449.3423.8384.7371.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0031
Triple Number Coastal/Long Distance Medium1.2924
Triple Number Coastal/Long Distance High1.4414
Triple Number Windward/Leeward Low0.7785
Triple Number Windward/Leeward Medium1.0465
Triple Number Windward/Leeward High1.1903
Coastal/Long Distance1.1797
Predominantly Upwind1.1853
Predominantly Downwind1.2665
For information
General Purpose Handicap (GPH)523.9
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.2842
Distanseseilas Trippeltall svak vind1.0031
Distanseseilas Trippeltall mellomvind1.2924
Distanseseilas Trippeltall sterk vind1.4414
Pølsebane Trippeltall svak vind0.7785
Pølsebane Trippeltall mellomvind1.0465
Pølsebane Trippeltall sterk vind1.1903
Motvind Singeltall1.1853
Medvind Singeltall1.2665
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Coastal/Long Distance508.61.1797
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind506.21.1853
Predominantly Downwind473.71.2665
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore472.01.2712
Cape Doctor Coastal391.01.5343
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0031
Triple Number Coastal/Long Distance Medium1.2924
Triple Number Coastal/Long Distance High1.4414
Triple Number Windward/Leeward Low0.7785
Triple Number Windward/Leeward Medium1.0465
Triple Number Windward/Leeward High1.1903
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0031
Triple Number Coastal/Long Distance Medium1.2924
Triple Number Coastal/Long Distance High1.4414
Triple Number Windward/Leeward Low0.7785
Triple Number Windward/Leeward Medium1.0465
Triple Number Windward/Leeward High1.1903
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance508.61.1797
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Predominantly Upwind506.21.1853
Predominantly Downwind473.71.2665
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1265.5849.9647.7542.1481.5449.3423.8384.7371.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance508.61.1797
Triple Number Coastal/Long Distance Low598.11.0031
Triple Number Coastal/Long Distance Medium464.31.2924
Triple Number Coastal/Long Distance High416.31.4414
Triple Number Windward/Leeward Low770.70.7785
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1265.5849.9647.7542.1481.5449.3423.8384.7371.0
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low598.11.0031
Triple Number AP Medium464.31.2923
Triple Number AP High416.31.4414
Triple Number Windward/Leeward Low804.40.7459
Triple Number Windward/Leeward Medium573.31.0465
Triple Number Windward/Leeward High504.11.1903
Single Number Predominant Upwind526.51.1397
Single Number Predominant Reaching464.01.2930
Single Number Predominant Downwind493.71.2153
Predominant Upwind - Low724.90.8277
Predominant Upwind - Low/Med554.41.0822
Predominant Upwind - Medium490.31.2237
Predominant Upwind - Med/High458.21.3095
Predominant Upwind - High442.81.3551
Predominant Downwind Low716.50.8374
Predominant Downwind Low/Med533.51.1247
Predominant Downwind Medium457.61.3112
Predominant Downwind Med/High410.81.4604
Predominant Downwind High380.51.5769
Predominant Reaching Low641.50.9353
Predominant Reaching Low/Med492.11.2193
Predominant Reaching Medium434.51.3808
Predominant Reaching Med/High399.71.5011
Predominant Reaching High377.41.5899
SA/DSPL Upwind23.48SA/DSPL Downwind49.23
Scoring OptionTODTOT
5-Band Windward/Leeward Low897.50.6685
5-Band Windward/Leeward Low/Med661.60.9068
5-Band Windward/Leeward Medium563.81.0642
5-Band Windward/Leeward Med/High511.41.1733
5-Band Windward/Leeward High485.51.2358
Windward/Leeward 60-40 Low903.30.6642
Windward/Leeward 60-40 Low/Med669.60.8961
Windward/Leeward 60-40 Medium574.81.0439
Windward/Leeward 60-40 Med/High525.71.1414
Windward/Leeward 60-40 High502.91.1931
5-Band AP Low658.50.9112
5-Band AP Low/Med523.51.1462
5-Band AP Medium458.01.3100
5-Band AP Med/High421.71.4227
5-Band AP High401.91.4929
5-Band SF Bay Tour - Low774.70.7745
5-Band SF Bay Tour - Low/Med632.10.9493
5-Band SF Bay Tour - Medium542.91.1052
5-Band SF Bay Tour - Med/High495.31.2113
5-Band SF Bay Tour - High471.21.2734
Chicago-Mac Upwind1.1051
Chicago-Mac All Purpose1.1412
Chicago-Mac Downwind1.1719
Bayview-Mac Cove Island0.8381
Bayview-Mac Shore0.8435
Harvest Moon Regatta405.81.4786
Club Certificate2025
GoshawkJPN 6958
JAPAN SAILING FEDERATION
4-2, Kasumigaokacho,
Shinjuku, Tokyo
Japan
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassSwan48MeasurementHINPlan reviewHull constructionCoredCarbon rudderYesLight stanchionsNoTrim tabNo
LOA14.767Max. Beam4.564Draft3.004Displacement14,500Wetted area48.58IMS L14.101LSM014.055Acc. length14.767Sink (kg/mm) 37.63
VCGD0.166VCGM0.069RM Rated (kg·m) 441.1Limit of positive stability(°) N/AStability IndexN/ADefault crew weight1,119Declared crew weight900
PROPELLER
Propeller TypeFolding 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.508PBWPIPA0.0010
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P19.900IG20.800ISP22.200MDT10.156MDL10.306MDT2MDL2TLTaperMWGO
E6.600J5.660BAS1.950FSDFoilSFJSPLWPLTPS7.340BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/02/2020
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
GoshawkJPN 6958
JAPAN SAILING FEDERATION
4-2, Kasumigaokacho,
Shinjuku, Tokyo
Japan
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM10.701.622.584.205.4679.00
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentH10.100.881.663.134.535.9020.16YesNo 61.83
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA123.0520.8421.9511.8711.68102%216.38
CRUISER/RACER REQUIREMENTS*
Accommodation length14.8 mTable area0.66 m²Headroom1.90 mMinimum number of berths6Personal gear stowage0.24 m³Fresh water capacity264 lMinimum number of seats in cockpit6Food stowage0.36 m³Fuel capacity146 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.