Club
One Design
 Certificate
2023

Boat

EDB JEBEDEE

ITA-427J24

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles43.5°41.7°39.6°38.4°38.2°38.2°39.6°
Beat VMG3.083.684.094.334.404.424.37
52°4.685.445.836.046.146.206.22
60°4.925.625.976.186.326.406.46
75°5.065.726.076.346.566.716.87
90°4.985.686.146.456.656.907.28
110°4.865.736.216.626.997.358.01
120°4.715.616.126.536.937.368.69
135°4.235.155.856.266.657.058.23
150°3.564.545.355.926.306.667.46
Run VMG3.093.944.665.335.836.196.87
Gybe Angles146.8°151.6°155.0°168.5°177.2°179.0°178.4°

APH: 649.7

CDL: 6.472

GPH: 726.9

CertNo: 23/1

BOAT
ClassJ-24DesignerJOHNSTONEBuilderJ-BoatsAge dateSeries date01/1977Offset fileJ24.ODData fileI427J24
HULL
Length Overall7.318 mMaximum Beam2.692 mDraft1.225 mDisplacement1,269 kgDLR5.6329IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight400 kgMinimum weight300 kg * when appliedNon Manual PowerNoCrew Arm Extension-0.20 m
SAIL AREAS (m²)
MeasuredRatedMainsail15.6616.03Headsail Luffed18.7818.78Headsail FlyingSymmetric35.3435.34Asymmetric
STORM SAIL AREAS (m²)
Trysail4.44Storm Jib3.37Heavy Weather Jib9.08
SAIL LIMITS
Headsails5  Spinnakers4
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.
ORC Ref  03190002BQ1Issued on 30/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
One Design
 Certificate
2023

Boat

EDB JEBEDEE

ITA-427J24

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1169.4977.7880.3832.3818.7813.7823.8
52°768.6661.8617.1595.6586.0580.9579.1
60°731.2640.0603.4582.3569.4562.7557.4
75°711.3629.9592.8568.0549.0536.3524.0
90°723.5633.7586.2557.9541.1522.1494.2
110°740.6628.7579.6543.9515.0489.6449.4
120°763.8641.6588.1551.5519.5488.8414.4
135°850.4698.8615.7575.2541.6510.8437.5
150°1010.1792.2672.7608.0571.8540.6482.5
Run VMG1166.3913.8771.9676.0617.0581.4523.8
Selected Courses
Windward / Leeward1167.9945.7826.1754.2717.8697.5673.8
All purpose899.5749.1672.2628.0603.2584.8556.5
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward791.50.7581
All purpose649.70.9235
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance704.70.8514
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1167.7892.0750.8668.1625.8590.6524.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6650
Downwind "popa"0.8000
70% up, 30% down "Ilhabela"0.7004
30% up, 70% down "Ilhabela-inverso"0.7540
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Predominantly Upwind701.00.8559
Predominantly Downwind660.60.9082
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low824.30.7279
Triple Number All Purpose Medium646.60.9279
Triple Number All Purpose High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Predominantly Upwind701.00.8559
Predominantly Downwind660.60.9082
Predominantly Upwind Low909.10.6600
Predominantly Upwind Medium722.20.8308
Predominantly Upwind High683.30.8781
Predominantly Downwind Low905.90.6623
Predominantly Downwind Medium655.40.9155
Predominantly Downwind High544.31.1024
Chicago-Mac Upwind0.8411
Chicago-Mac All Purpose0.8648
Chicago-Mac Downwind0.8932
Bayview-Mac Cove Island0.8088
Bayview-Mac Shore0.8165
Victoria-Maui0.9601
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance704.70.8514
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1167.7892.0750.8668.1625.8590.6524.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance704.70.8514
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1167.7892.0750.8668.1625.8590.6524.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance704.7
Triple Number Coastal/Long Distance Low824.3
Triple Number Coastal/Long Distance Medium646.6
Triple Number Coastal/Long Distance High578.8
Triple Number Windward/Leeward Low1056.7
Triple Number Windward/Leeward Medium785.0
Triple Number Windward/Leeward High693.7
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1167.7892.0750.8668.1625.8590.6524.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance704.70.8514
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1167.7892.0750.8668.1625.8590.6524.8
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)704.70.8514
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1167.7892.0750.8668.1625.8590.6524.8
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7279
Triple Number Coastal/Long Distance Medium0.9279
Triple Number Coastal/Long Distance High1.0367
Triple Number Windward/Leeward Low0.5678
Triple Number Windward/Leeward Medium0.7643
Triple Number Windward/Leeward High0.8649
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1167.7892.0750.8668.1625.8590.6524.8
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance704.70.8514
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1167.7892.0750.8668.1625.8590.6524.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance704.70.8514
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1167.7892.0750.8668.1625.8590.6524.8
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1167.7892.0750.8668.1625.8590.6524.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low824.3
Triple Number Coastal/Long Distance Medium646.6
Triple Number Coastal/Long Distance High578.8
Triple Number Windward/Leeward Low1056.7
Triple Number Windward/Leeward Medium785.0
Triple Number Windward/Leeward High693.7
Predominantly Upwind701.0
Predominantly Downwind660.6
Predominantly Reaching635.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance704.70.8514
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1167.7892.0750.8668.1625.8590.6524.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7279
Triple Number Coastal/Long Distance Medium0.9279
Triple Number Coastal/Long Distance High1.0367
Triple Number Windward/Leeward Low0.5678
Triple Number Windward/Leeward Medium0.7643
Triple Number Windward/Leeward High0.8649
Coastal/Long Distance0.8514
Predominantly Upwind0.8559
Predominantly Downwind0.9082
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7279
Tretall Distanseseilas Mellomvind0.9279
Tretall Distanseseilas Mye vind1.0367
Tretall Pølsebane Lite vind0.5678
Tretall Pølsebane Mellomvind0.7643
Tretall Pølsebane Mye vind0.8649
Distanseseilas ett tall (OSN 8-16kn)0.8514
Distanseseilas ett tall (APH 6-20kn)0.9235
Enkeltall Motvind0.8559
Enkeltall Medvind0.9082
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Coastal/Long Distance704.70.8514
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind701.00.8559
Predominantly Downwind660.60.9082
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore680.90.8811
Cape Doctor Coastal565.01.0620
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7279
Triple Number Coastal/Long Distance Medium0.9279
Triple Number Coastal/Long Distance High1.0367
Triple Number Windward/Leeward Low0.5678
Triple Number Windward/Leeward Medium0.7643
Triple Number Windward/Leeward High0.8649
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7279
Triple Number Coastal/Long Distance Medium0.9279
Triple Number Coastal/Long Distance High1.0367
Triple Number Windward/Leeward Low0.5678
Triple Number Windward/Leeward Medium0.7643
Triple Number Windward/Leeward High0.8649
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance704.70.8514
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Predominantly Upwind701.00.8559
Predominantly Downwind660.60.9082
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1167.7892.0750.8668.1625.8590.6524.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance704.70.8514
Triple Number Coastal/Long Distance Low824.30.7279
Triple Number Coastal/Long Distance Medium646.60.9279
Triple Number Coastal/Long Distance High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1167.7892.0750.8668.1625.8590.6524.8
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low824.30.7279
Triple Number All Purpose Medium646.60.9279
Triple Number All Purpose High578.81.0367
Triple Number Windward/Leeward Low1056.70.5678
Triple Number Windward/Leeward Medium785.00.7643
Triple Number Windward/Leeward High693.70.8649
Predominantly Upwind701.00.8559
Predominantly Downwind660.60.9082
Predominantly Upwind Low909.10.6600
Predominantly Upwind Medium722.20.8308
Predominantly Upwind High683.30.8781
Predominantly Downwind Low905.90.6623
Predominantly Downwind Medium655.40.9155
Predominantly Downwind High544.31.1024
Chicago-Mac Upwind0.8411
Chicago-Mac All Purpose0.8648
Chicago-Mac Downwind0.8932
Bayview-Mac Cove Island0.8088
Bayview-Mac Shore0.8165
Harvest Moon Regatta564.01.0639
Victoria-Maui0.9601
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy680.60.8815
San Francisco Bay Medium780.40.7688
Predominantly Reaching0.9667
Predominantly Reaching Low0.7986
Predominantly Reaching Medium0.9730
Predominantly Reaching High1.1062
Windward/Leeward 60-40 Low1060.20.5660
Windward/Leeward 60-40 Medium809.60.7412
Windward/Leeward 60-40 High736.30.8149
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1150.80.5214
5-Band Low / Medium967.80.6200
5-Band Medium771.40.7778
5-Band Medium / High701.70.8551
5-Band High677.90.8850
ORC Ref  03190002BQ1Issued on 30/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
One Design
 Certificate
2023

Boat

EDB JEBEDEE

ITA-427J24

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-24Measurement01/02/1977HINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA7.318Max. Beam2.692Draft1.225Displacement1,269Wetted area10.37IMS L6.506LSM06.085Acc. length7.318Sink (kg/mm) 8.53
VCGD0.049VCGM0.076RM Rated (kg·m) 27.0Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
PIPA0.0000
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders1Rotating mastNo
P8.538IG8.125ISP8.210MDT10.087MDL10.124MDT20.087MDL20.124TL0.000MW0.124GO0.150
E2.970J2.900BAS1.080FSDSFJSPL2.975WPLTPSBD0.085MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date16/04/2015MeasurerComment
SFFP0.286FFMFF0.808LCFcl4.079SG1.0250
SAFP7.317FAMFA0.699LCFsh4.293HBI0.732
W120.0W220.0W320.0W420.0
PD1332.0PD2330.0PD3331.0PD4332.0
WD5.680PLM9000.00GSA1.0RSA1.0RM27.0
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03190002BQ1Issued on 30/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
One Design
 Certificate
2023

Boat

EDB JEBEDEE

ITA-427J24

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentORC0.150.701.181.982.6015.66Class rules
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC0.104.358.46NoNo 18.78Class rules
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentORC8.138.138.135.225.2035.34Class rules
ORC Ref  03190002BQ1Issued on 30/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org