International
One Design
 Certificate
2021

Boat

SWISS CHEESE

USA 2925

 
Offshore
Racing
Congress

Certificate number: US7003
Rated boat velocities in knots
Wind Velocity6 kt8 kt10 kt12 kt14 kt16 kt20 kt
Beat Angles43.1°42.0°40.7°39.4°39.0°39.0°40.9°
Beat VMG3.043.634.054.304.384.394.27
52°4.635.435.856.076.176.216.18
60°4.935.676.016.246.406.486.50
75°5.165.816.146.446.746.937.06
90°5.125.816.236.626.867.197.66
110°4.975.846.306.797.287.778.57
120°4.835.746.216.677.167.749.36
135°4.365.285.956.356.807.288.63
150°3.684.645.456.006.376.797.74
Run VMG3.194.024.755.435.936.287.07
Gybe Angles148.0°152.0°154.0°174.0°180.0°180.0°180.0°

GPH = 718.4

CDL = 6.419

BOAT
ClassJ-24𝕚DesignerJOHNSTONEBuilderJ-BOATSAge DateSeries Date01/1977Offset Filej24.OD
HULL
Length Overall7.318 mMaximum Beam2.692 mDraft1.225 mDisplacement1,271 kgDLR5.6590IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight400 kg𝕚Minimum weight300 kg𝕚* when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRated Mainsail15.6616.03Headsail Luffed18.7818.78Headsail FlyingSymmetric35.34𝕚35.34𝕚Asymmetric
SAIL LIMITATIONS
Headsails5 Spinnakers4
STABILITY
Righting Moment27.0 kg·mStability Index95.3
OWNER




The owner certifies that he/she understands his/her responsibilities under ORC Rule and Regulations.
ORC Ref  034100016MRIssued on 04/05/2021Valid until 31/12/2021
VPP ver: 2021 1.00 | © ORC | www.orc.org

International
One Design
 Certificate
2021

Boat

SWISS CHEESE

USA 2925

 
Offshore
Racing
Congress

Certificate number: US7003
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1184.2992.1889.1836.3822.4820.3843.2
52°776.8662.5615.2592.8583.6579.8582.5
60°730.6634.7599.4576.7562.2555.5553.9
75°698.2620.1586.3558.6534.3519.7510.2
90°703.5619.6577.6543.9524.8500.5469.9
110°723.7616.6571.2530.3494.2463.2420.0
120°745.7627.6579.8539.6502.8465.4384.8
135°826.4681.6605.6566.9529.4494.6417.2
150°978.4776.1661.1600.0564.7530.0464.9
Run VMG1129.8895.6757.2662.5607.3572.8509.1
Selected Courses
Windward / Leeward1157.0943.8823.1749.4714.8696.6676.1
All purpose888.4742.8667.4621.3593.4573.6546.4
Single Number Scoring Options
CourseTime On DistanceTime On Time
Windward / Leeward788.10.7613
All purpose641.90.9347
Custom scoring options for Austria
Single NumberTime On DistanceTime On Time
Coastal/Long Distance698.10.8595
Triple Number Coastal/Long Distance Low815.50.7357
Triple Number Coastal/Long Distance Medium639.80.9378
Triple Number Coastal/Long Distance High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1154.3888.0746.7662.1618.2580.1510.4
Custom scoring options for Bulgaria
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low815.50.7357
Triple Number Coastal/Long Distance Medium639.80.9378
Triple Number Coastal/Long Distance High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Predominantly Upwind698.10.8595
Predominantly Downwind650.00.9231
Custom scoring options for Canada
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low815.50.7357
Triple Number All Purpose Medium639.80.9378
Triple Number All Purpose High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Predominantly Upwind698.10.8595
Predominantly Downwind650.00.9231
Predominantly Upwind Low910.50.6590
Predominantly Upwind Medium722.40.8306
Predominantly Upwind High684.70.8763
Predominantly Downwind Low888.90.6750
Predominantly Downwind Medium644.00.9317
Predominantly Downwind High530.81.1303
Chicago-Mac Upwind0.8436
Chicago-Mac All Purpose0.8737
Chicago-Mac Downwind0.9077
Bayview-Mac Cove Island0.8174
Bayview-Mac Shore0.8235
Victoria-Maui0.9798
Custom scoring options for Denmark
Single NumberTime On DistanceTime On Time
Coastal/Long Distance698.10.8595
Triple Number Coastal/Long Distance Low815.50.7357
Triple Number Coastal/Long Distance Medium639.80.9378
Triple Number Coastal/Long Distance High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1154.3888.0746.7662.1618.2580.1510.4
Custom scoring options for Spain
Single NumberTime On Distance
Coastal/Long Distance698.1
Triple Number Coastal/Long Distance Low815.5
Triple Number Coastal/Long Distance Medium639.8
Triple Number Coastal/Long Distance High568.3
Triple Number Windward/Leeward Low1050.4
Triple Number Windward/Leeward Medium781.6
Triple Number Windward/Leeward High693.5
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1154.3888.0746.7662.1618.2580.1510.4
Custom scoring options for Estonia
Single NumberTime On DistanceTime On Time
Coastal/Long Distance698.10.8595
Triple Number Coastal/Long Distance Low815.50.7357
Triple Number Coastal/Long Distance Medium639.80.9378
Triple Number Coastal/Long Distance High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1154.3888.0746.7662.1618.2580.1510.4
Custom scoring options for Finland
Single NumberTime On DistanceTime On Time
FinRating (Coastal/Long Distance)698.10.8595
Triple Number Coastal/Long Distance Low815.50.7357
Triple Number Coastal/Long Distance Medium639.80.9378
Triple Number Coastal/Long Distance High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1154.3888.0746.7662.1618.2580.1510.4
Custom scoring options for France
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low815.50.7357
Triple Number Coastal/Long Distance Medium639.80.9378
Triple Number Coastal/Long Distance High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Custom scoring options for Germany
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.7357
Triple Number Coastal/Long Distance Medium0.9378
Triple Number Coastal/Long Distance High1.0557
Triple Number Windward/Leeward Low0.5712
Triple Number Windward/Leeward Medium0.7677
Triple Number Windward/Leeward High0.8652
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1154.3888.0746.7662.1618.2580.1510.4
Custom scoring options for Greece
Single NumberTime On DistanceTime On Time
Coastal/Long Distance698.10.8595
Triple Number Coastal/Long Distance Low815.50.7357
Triple Number Coastal/Long Distance Medium639.80.9378
Triple Number Coastal/Long Distance High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1154.3888.0746.7662.1618.2580.1510.4
Custom scoring options for Israel
Single NumberTime On DistanceTime On Time
Coastal/Long Distance698.10.8595
Triple Number Coastal/Long Distance Low815.50.7357
Triple Number Coastal/Long Distance Medium639.80.9378
Triple Number Coastal/Long Distance High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1154.3888.0746.7662.1618.2580.1510.4
Custom scoring options for Italy
Single NumberTime On DistanceTime On Time
Coastal/Long Distance698.10.8595
Triple Number Coastal/Long Distance Low815.50.7357
Triple Number Coastal/Long Distance Medium639.80.9378
Triple Number Coastal/Long Distance High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1154.3888.0746.7662.1618.2580.1510.4
Custom scoring options for Japan
Single NumberTime On DistanceTime On Time
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1154.3888.0746.7662.1618.2580.1510.4
Custom scoring options for Korea
Single NumberTime On Distance
Triple Number Coastal/Long Distance Low815.5
Triple Number Coastal/Long Distance Medium639.8
Triple Number Coastal/Long Distance High568.3
Triple Number Windward/Leeward Low1050.4
Triple Number Windward/Leeward Medium781.6
Triple Number Windward/Leeward High693.5
Predominantly Upwind698.1
Predominantly Downwind650.0
Predominantly Reaching623.9
Custom scoring options for Lithuania
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low815.50.7357
Triple Number Coastal/Long Distance Medium639.80.9378
Triple Number Coastal/Long Distance High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Custom scoring options for Netherlands
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.7357
Triple Number Coastal/Long Distance Medium0.9378
Triple Number Coastal/Long Distance High1.0557
Triple Number Windward/Leeward Low0.5712
Triple Number Windward/Leeward Medium0.7677
Triple Number Windward/Leeward High0.8652
Coastal/Long Distance0.8595
Predominantly Upwind0.8595
Predominantly Downwind0.9231
Custom scoring options for Norway
Single NumberTime On Time
Distanseseilas (NOR-rating ett tall)0.8595
Tretall Distanseseilas Lite vind0.7357
Tretall Distanseseilas Mellomvind0.9378
Tretall Distanseseilas Mye vind1.0557
Tretall Pølsebane Lite vind0.5712
Tretall Pølsebane Mellomvind0.7677
Tretall Pølsebane Mye vind0.8652
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Distanseseilas1154.3888.0746.7662.1618.2580.1510.4
Custom scoring options for Portugal
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low815.50.7357
Triple Number Coastal/Long Distance Medium639.80.9378
Triple Number Coastal/Long Distance High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Custom scoring options for Russia
Single NumberTime On DistanceTime On Time
Predominantly Upwind698.10.8595
Predominantly Downwind650.00.9231
Custom scoring options for South Africa
Single NumberTime On DistanceTime On Time
Cape Doctor Inshore682.30.8794
Cape Doctor Coastal554.61.0819
Custom scoring options for Slovenia
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.7357
Triple Number Coastal/Long Distance Medium0.9378
Triple Number Coastal/Long Distance High1.0557
Triple Number Windward/Leeward Low0.5712
Triple Number Windward/Leeward Medium0.7677
Triple Number Windward/Leeward High0.8652
Custom scoring options for Switzerland
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.7357
Triple Number Coastal/Long Distance Medium0.9378
Triple Number Coastal/Long Distance High1.0557
Triple Number Windward/Leeward Low0.5712
Triple Number Windward/Leeward Medium0.7677
Triple Number Windward/Leeward High0.8652
Custom scoring options for Sweden
Single NumberTime On DistanceTime On Time
Coastal/Long Distance698.10.8595
Triple Number Coastal/Long Distance Low815.50.7357
Triple Number Coastal/Long Distance Medium639.80.9378
Triple Number Coastal/Long Distance High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Predominantly Upwind698.10.8595
Predominantly Downwind650.00.9231
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1154.3888.0746.7662.1618.2580.1510.4
Custom scoring options for Ukraine
Single NumberTime On DistanceTime On Time
Coastal/Long Distance698.10.8595
Triple Number Coastal/Long Distance Low815.50.7357
Triple Number Coastal/Long Distance Medium639.80.9378
Triple Number Coastal/Long Distance High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1154.3888.0746.7662.1618.2580.1510.4
Custom scoring options for United States of America
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low815.50.7357
Triple Number All Purpose Medium639.80.9378
Triple Number All Purpose High568.31.0557
Triple Number Windward/Leeward Low1050.40.5712
Triple Number Windward/Leeward Medium781.60.7677
Triple Number Windward/Leeward High693.50.8652
Predominantly Upwind698.10.8595
Predominantly Downwind650.00.9231
Predominantly Upwind Low910.50.6590
Predominantly Upwind Medium722.40.8306
Predominantly Upwind High684.70.8763
Predominantly Downwind Low888.90.6750
Predominantly Downwind Medium644.00.9317
Predominantly Downwind High530.81.1303
Chicago-Mac Upwind0.8436
Chicago-Mac All Purpose0.8737
Chicago-Mac Downwind0.9077
Bayview-Mac Cove Island0.8174
Bayview-Mac Shore0.8235
Harvest Moon Regatta564.01.0638
Victoria-Maui0.9798
ORC Ref  034100016MRIssued on 04/05/2021Valid until 31/12/2021
VPP ver: 2021 1.00 | © ORC | www.orc.org

International
One Design
 Certificate
2021

Boat

SWISS CHEESE

USA 2925

 
Offshore
Racing
Congress

Certificate number: US7003
Data in meters/kilograms (Metric)𝕚
HULL AND APPENDAGES
ClassJ-24𝕚Measurement16/04/2015𝕚Measurer𝕚HIN𝕚Plan review𝕚Hull constructionSolid𝕚Carbon RudderNo𝕚Light stanchionsNo𝕚Trim tabNo𝕚
LOA7.318𝕚Max. Beam2.692𝕚Draft1.225𝕚Displacement1,271𝕚Wetted area10.43𝕚IMS L6.469𝕚LSM06.078𝕚Acc. length7.318𝕚Sink (kg/mm)8.53𝕚
VCGD0.052𝕚VCGM0.079𝕚RM Measured (kg·m)27.0𝕚RM Default (kg·m)27.0𝕚Limit of positive stability(°)103.4𝕚Stability Index95.3𝕚
PROPELLER
Propeller TypeNo Propeller𝕚PIPA0.0000𝕚
RIG
Forestay tensionAft𝕚Inner stayNone Fitted𝕚Carbon mastNo𝕚Headsail furlerNo𝕚Mainsail furlerNo𝕚Articulated bowspritNo𝕚Non-circular riggingNo𝕚Fiber riggingNo𝕚Runners/Checkstays0𝕚Spreaders1𝕚
P8.538𝕚IG8.125𝕚ISP8.210𝕚MDT10.087𝕚MDL10.124𝕚MDT20.087𝕚MDL20.124𝕚TL0.000𝕚MW0.124𝕚GO0.150𝕚
E2.970𝕚J2.900𝕚BAS1.080𝕚FSD𝕚SFJ𝕚SPL2.975𝕚TPS𝕚BD0.085𝕚MWT𝕚MCG𝕚
FLOTATION AND STABILITY
Inclining TestPoles Inclining𝕚SFFP0.286𝕚SAFP7.317𝕚Flotation Date16/04/2015𝕚FFM0.808𝕚FAM0.699𝕚Measurer𝕚FF0.808𝕚FA0.699𝕚Comment𝕚LCFcl4.079𝕚LCFsh4.293𝕚SG1.0250𝕚HBI0.733𝕚
W120.0𝕚W220.0𝕚W320.0𝕚W420.0𝕚
PD1332.0𝕚PD2330.0𝕚PD3331.0𝕚PD4332.0𝕚
WD5.680𝕚PLM9000.00𝕚GSA1.0𝕚RSA1.0𝕚
ORC Ref  034100016MRIssued on 04/05/2021Valid until 31/12/2021
VPP ver: 2021 1.00 | © ORC | www.orc.org

International
One Design
 Certificate
2021

Boat

SWISS CHEESE

USA 2925

 
Offshore
Racing
Congress

Certificate number: US7003
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeasurerMeas.DateMakerMaterialCommentORC𝕚0.15𝕚0.70𝕚1.18𝕚1.98𝕚2.60𝕚15.66𝕚𝕚𝕚𝕚𝕚Class rules𝕚
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeasurerMeas.DateMakerMaterialCommentORC𝕚0.10𝕚𝕚𝕚𝕚𝕚4.35𝕚8.46𝕚No𝕚No𝕚 𝕚18.78𝕚𝕚𝕚𝕚𝕚Class rules𝕚
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeasurerMeas.DateMakerMaterialCommentORC𝕚8.13𝕚8.13𝕚8.13𝕚5.22𝕚5.20𝕚35.34𝕚𝕚𝕚𝕚𝕚Class rules𝕚
ORC Ref  034100016MRIssued on 04/05/2021Valid until 31/12/2021
VPP ver: 2021 1.00 | © ORC | www.orc.org