Club
Certificate
2024

Boat

J 24 ONE DESIGN

GER 907

ORC Bulgaria
Varna
Mosrka Gara 1
orcratingbulgaria@gmail.com
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles43.5°41.9°40.4°38.8°38.2°38.1°39.2°42.0°
Beat VMG2.953.543.964.254.404.454.404.22
52°4.515.295.735.986.146.206.246.18
60°4.755.495.886.116.296.406.486.48
75°4.895.605.996.256.496.686.886.97
90°4.805.606.086.416.656.797.207.45
110°4.765.646.136.526.897.247.878.38
120°4.605.526.046.426.807.188.179.64
135°4.125.045.766.176.536.907.779.81
150°3.484.445.255.836.206.547.248.26
Run VMG3.023.854.575.235.756.116.747.42
Gybe Angles146.9°151.6°154.6°167.8°177.7°178.6°178.6°177.5°
APH ToD:660.3CDL: 6.432APH ToT: 0.9086CertNo:034/24
BOAT
ClassJ-24DesignerJOHN STONEBuilderJ-BOATSAge date01/1979Series date01/1977Offset filej24.OD.OFFData filej24907
HULL
Length Overall7.318 mMaximum Beam2.692 mDraft1.244 mDisplacement1,444 kgDLR5.7194IMS DivisionSportboatDynamic Allowance0.120%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight400 kg(declared)Minimum weight270 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail15.4415.77Headsail Luffed17.7917.79Headsail FlyingSymmetric34.5934.59Asymmetric
STORM SAIL AREAS (m²)
Trysail4.44Storm Jib3.41Heavy Weather Jib9.19
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
0898773055
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.
ORC Ref  038500038EIIssued on 21/05/2024Valid until 31/12/2024
VPP ver: 2024 1.00 | © ORC | www.orc.org

Club
Certificate
2024

Boat

J 24 ONE DESIGN

GER 907

ORC Bulgaria
Varna
Mosrka Gara 1
orcratingbulgaria@gmail.com
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1220.71017.0908.4846.2817.6809.8817.6853.6
52°798.8680.9627.8602.0586.6580.3576.7582.2
60°758.5655.6612.3588.8572.2562.7555.4556.0
75°736.9643.3601.5575.6555.1539.3523.5516.3
90°750.2642.9591.7561.8541.7530.3500.0483.5
110°757.0638.3587.3552.0522.5497.4457.7429.4
120°781.8652.6595.9560.7529.7501.4440.9373.4
135°874.8714.5625.4583.8551.3522.1463.2366.9
150°1033.6810.2686.0617.1580.4550.3497.1436.0
Run VMG1193.5934.4788.1688.8626.2589.6534.0485.0
Selected Courses
Windward / Leeward1207.1975.7848.3767.5721.9699.7675.8669.3
All purpose929.4769.0686.2637.2607.7589.2562.3542.3
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward806.00.7444
All purpose660.30.9086
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance717.80.8359
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1205.7918.6768.5678.3630.3595.8534.0506.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6525
Downwind "popa"0.7843
70% up, 30% down "Ilhabela"0.6871
30% up, 70% down "Ilhabela-inverso"0.7395
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Predominantly Upwind713.00.8415
Predominantly Downwind672.80.8918
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low849.20.7066
Triple Number AP Medium657.20.9130
Triple Number AP High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Single Number Predominant Upwind711.40.8434
Single Number Predominant Reaching635.20.9446
Single Number Predominant Downwind673.70.8906
Predominant Upwind - Low930.20.6450
Predominant Upwind - Low/Med782.50.7668
Predominant Upwind - Medium689.70.8699
Predominant Upwind - Med/High643.50.9324
Predominant Upwind - High628.20.9551
Predominant Downwind Low935.90.6411
Predominant Downwind Low/Med763.30.7861
Predominant Downwind Medium648.30.9256
Predominant Downwind Med/High576.61.0405
Predominant Downwind High531.31.1293
Predominant Reaching Low834.30.7192
Predominant Reaching Low/Med701.10.8559
Predominant Reaching Medium616.20.9737
Predominant Reaching Med/High565.21.0616
Predominant Reaching High531.51.1289
SA/DSPL Upwind25.99SA/DSPL Downwind39.11
Scoring OptionTODTOT
5-Band Windward/Leeward Low1154.60.5197
5-Band Windward/Leeward Low/Med934.10.6423
5-Band Windward/Leeward Medium785.10.7643
5-Band Windward/Leeward Med/High705.00.8510
5-Band Windward/Leeward High678.80.8839
Windward/Leeward 60-40 Low1158.60.5179
Windward/Leeward 60-40 Low/Med944.00.6356
Windward/Leeward 60-40 Medium800.60.7494
Windward/Leeward 60-40 Med/High727.10.8252
Windward/Leeward 60-40 High707.50.8480
5-Band AP Low893.00.6719
5-Band AP Low/Med744.00.8065
5-Band AP Medium647.40.9268
5-Band AP Med/High591.81.0138
5-Band AP High563.51.0647
5-Band SF Bay Tour - Low1096.60.5472
5-Band SF Bay Tour - Low/Med894.60.6707
5-Band SF Bay Tour - Medium761.10.7883
5-Band SF Bay Tour - Med/High690.40.8691
5-Band SF Bay Tour - High664.60.9028
Chicago-Mac Upwind0.8255
Chicago-Mac All Purpose0.8484
Chicago-Mac Downwind0.8763
Bayview-Mac Cove Island0.7897
Bayview-Mac Shore0.7974
Harvest Moon Regatta573.81.0456
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance717.80.8359
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1205.7918.6768.5678.3630.3595.8534.0506.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance717.80.8359
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1205.7918.6768.5678.3630.3595.8534.0506.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance717.8
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1205.7918.6768.5678.3630.3595.8534.0506.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)717.80.8359
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1205.7918.6768.5678.3630.3595.8534.0506.5
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7066
Triple Number Coastal/Long Distance Medium0.9131
Triple Number Coastal/Long Distance High1.0278
Triple Number Windward/Leeward Low0.5497
Triple Number Windward/Leeward Medium0.7497
Triple Number Windward/Leeward High0.8617
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1205.7918.6768.5678.3630.3595.8534.0506.5
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance717.80.8359
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1205.7918.6768.5678.3630.3595.8534.0506.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance717.80.8359
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1205.7918.6768.5678.3630.3595.8534.0506.5
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance717.80.8359
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1205.7918.6768.5678.3630.3595.8534.0506.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low849.1
Triple Number Coastal/Long Distance Medium657.1
Triple Number Coastal/Long Distance High583.8
Triple Number Windward/Leeward Low1091.5
Triple Number Windward/Leeward Medium800.3
Triple Number Windward/Leeward High696.3
Predominantly Upwind713.0
Predominantly Downwind672.8
Predominantly Reaching645.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance717.80.8359
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1205.7918.6768.5678.3630.3595.8534.0506.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7066
Triple Number Coastal/Long Distance Medium0.9131
Triple Number Coastal/Long Distance High1.0278
Triple Number Windward/Leeward Low0.5497
Triple Number Windward/Leeward Medium0.7497
Triple Number Windward/Leeward High0.8617
Coastal/Long Distance0.8359
Predominantly Upwind0.8415
Predominantly Downwind0.8918
For information
General Purpose Handicap (GPH)741.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7066
Tretall Distanseseilas Mellomvind0.9131
Tretall Distanseseilas Mye vind1.0278
Tretall Pølsebane Lite vind0.5497
Tretall Pølsebane Mellomvind0.7497
Tretall Pølsebane Mye vind0.8617
Distanseseilas ett tall0.9086
Enkeltall Motvind0.8415
Enkeltall Medvind0.8918
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Coastal/Long Distance717.80.8359
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind713.00.8415
Predominantly Downwind672.80.8918
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore671.20.8939
Cape Doctor Coastal548.31.0942
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7066
Triple Number Coastal/Long Distance Medium0.9131
Triple Number Coastal/Long Distance High1.0278
Triple Number Windward/Leeward Low0.5497
Triple Number Windward/Leeward Medium0.7497
Triple Number Windward/Leeward High0.8617
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7066
Triple Number Coastal/Long Distance Medium0.9131
Triple Number Coastal/Long Distance High1.0278
Triple Number Windward/Leeward Low0.5497
Triple Number Windward/Leeward Medium0.7497
Triple Number Windward/Leeward High0.8617
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance717.80.8359
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Predominantly Upwind713.00.8415
Predominantly Downwind672.80.8918
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1205.7918.6768.5678.3630.3595.8534.0506.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance717.80.8359
Triple Number Coastal/Long Distance Low849.10.7066
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1205.7918.6768.5678.3630.3595.8534.0506.5
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low849.20.7066
Triple Number AP Medium657.20.9130
Triple Number AP High583.81.0278
Triple Number Windward/Leeward Low1091.50.5497
Triple Number Windward/Leeward Medium800.30.7497
Triple Number Windward/Leeward High696.30.8617
Single Number Predominant Upwind711.40.8434
Single Number Predominant Reaching635.20.9446
Single Number Predominant Downwind673.70.8906
Predominant Upwind - Low930.20.6450
Predominant Upwind - Low/Med782.50.7668
Predominant Upwind - Medium689.70.8699
Predominant Upwind - Med/High643.50.9324
Predominant Upwind - High628.20.9551
Predominant Downwind Low935.90.6411
Predominant Downwind Low/Med763.30.7861
Predominant Downwind Medium648.30.9256
Predominant Downwind Med/High576.61.0405
Predominant Downwind High531.31.1293
Predominant Reaching Low834.30.7192
Predominant Reaching Low/Med701.10.8559
Predominant Reaching Medium616.20.9737
Predominant Reaching Med/High565.21.0616
Predominant Reaching High531.51.1289
SA/DSPL Upwind25.99SA/DSPL Downwind39.11
Scoring OptionTODTOT
5-Band Windward/Leeward Low1154.60.5197
5-Band Windward/Leeward Low/Med934.10.6423
5-Band Windward/Leeward Medium785.10.7643
5-Band Windward/Leeward Med/High705.00.8510
5-Band Windward/Leeward High678.80.8839
Windward/Leeward 60-40 Low1158.60.5179
Windward/Leeward 60-40 Low/Med944.00.6356
Windward/Leeward 60-40 Medium800.60.7494
Windward/Leeward 60-40 Med/High727.10.8252
Windward/Leeward 60-40 High707.50.8480
5-Band AP Low893.00.6719
5-Band AP Low/Med744.00.8065
5-Band AP Medium647.40.9268
5-Band AP Med/High591.81.0138
5-Band AP High563.51.0647
5-Band SF Bay Tour - Low1096.60.5472
5-Band SF Bay Tour - Low/Med894.60.6707
5-Band SF Bay Tour - Medium761.10.7883
5-Band SF Bay Tour - Med/High690.40.8691
5-Band SF Bay Tour - High664.60.9028
Chicago-Mac Upwind0.8255
Chicago-Mac All Purpose0.8484
Chicago-Mac Downwind0.8763
Bayview-Mac Cove Island0.7897
Bayview-Mac Shore0.7974
Harvest Moon Regatta573.81.0456
ORC Ref  038500038EIIssued on 21/05/2024Valid until 31/12/2024
VPP ver: 2024 1.00 | © ORC | www.orc.org

Club
Certificate
2024

Boat

J 24 ONE DESIGN

GER 907

ORC Bulgaria
Varna
Mosrka Gara 1
orcratingbulgaria@gmail.com
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-24Measurement01/02/1977HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA7.318Max. Beam2.692Draft1.244Displacement1,444Wetted area11.01IMS L6.637LSM06.320Acc. length7.318Sink (kg/mm) 9.09
VCGD0.060VCGM0.069RM Rated (kg·m) 30.5Limit of positive stability(°) N/AStability IndexN/ADefault crew weight358Declared crew weight400
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunners/Checkstays0Spreaders1Rotating mastNo
P8.540IG8.190ISP8.210MDT10.090MDL10.130MDT20.090MDL20.130TLMW0.130GO0.150
E2.970J2.900BAS1.080FSDSFJSPL2.980WPLTPSBD0.085MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date02/02/2021
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  038500038EIIssued on 21/05/2024Valid until 31/12/2024
VPP ver: 2024 1.00 | © ORC | www.orc.org

Club
Certificate
2024

Boat

J 24 ONE DESIGN

GER 907

ORC Bulgaria
Varna
Mosrka Gara 1
orcratingbulgaria@gmail.com
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.150.681.091.992.5615.4402/02/2021
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.090.561.072.123.214.258.32NoNo 17.7902/02/2021
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment18.108.108.105.184.9034.5902/02/2021
ORC Ref  038500038EIIssued on 21/05/2024Valid until 31/12/2024
VPP ver: 2024 1.00 | © ORC | www.orc.org