Club
Certificate
2023

Boat

JOY IV

NOR 10107

Norges Seilforbund
Sognsveien 73
0854 OSLO
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles43.0°40.6°39.4°38.8°38.8°38.8°39.4°
Beat VMG3.334.024.454.644.724.764.74
52°5.045.916.426.656.746.796.82
60°5.296.136.616.856.957.017.05
75°5.456.296.767.047.227.337.44
90°5.356.246.777.107.357.567.84
110°5.176.256.887.287.617.878.19
120°5.006.106.807.247.617.978.58
135°4.475.576.426.967.377.778.62
150°3.774.855.776.506.987.368.14
Run VMG3.264.205.015.726.326.827.55
Gybe Angles145.7°149.8°152.9°158.2°170.0°177.2°179.0°

APH: 596.8

CDL: 8.161

GPH: 669.5

CertNo: 7624

BOAT
ClassFIRST 31.7 LRDesignerFinotBuilderBeneteauAge date01/2002Series date01/1998Offset filefirst317.offData file7624
HULL
Length Overall9.610 mMaximum Beam3.212 mDraft1.940 mDisplacement3,858 kgDLR5.4995IMS DivisionCruiser/RacerDynamic Allowance0.310%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight350 kgMinimum weight263 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail25.7626.41Headsail Luffed29.9529.95Headsail FlyingSymmetric60.1360.13Asymmetric
STORM SAIL AREAS (m²)
Trysail7.38Storm Jib7.17Heavy Weather Jib19.34
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  03440002K6IIssued on 02/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

JOY IV

NOR 10107

Norges Seilforbund
Sognsveien 73
0854 OSLO
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1082.7896.5808.6775.9762.4756.5760.1
52°714.4608.8560.4541.4533.8529.8528.0
60°680.7586.9544.3525.7517.9513.5510.3
75°660.1572.4532.3511.4498.5491.4483.8
90°673.3576.7531.8507.3489.8476.1459.2
110°696.5576.4523.1494.5473.3457.6439.6
120°720.7590.0529.2497.3472.8451.9419.7
135°805.5645.8560.6517.0488.5463.2417.9
150°955.4742.3623.8554.1515.6488.9442.5
Run VMG1103.2857.1718.4629.9569.8528.2477.0
Selected Courses
Windward / Leeward1092.9876.8763.5702.9666.1642.4618.5
All purpose841.5690.2614.6575.7552.6537.0517.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward734.30.8171
All purpose596.81.0053
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance649.30.9240
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1094.0826.3690.2614.6573.8541.9492.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7188
Downwind "popa"0.8600
70% up, 30% down "Ilhabela"0.7561
30% up, 70% down "Ilhabela-inverso"0.8122
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Predominantly Upwind644.50.9309
Predominantly Downwind607.10.9882
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low765.90.7834
Triple Number All Purpose Medium592.41.0128
Triple Number All Purpose High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Predominantly Upwind644.50.9309
Predominantly Downwind607.10.9882
Predominantly Upwind Low841.80.7128
Predominantly Upwind Medium663.70.9040
Predominantly Upwind High629.70.9528
Predominantly Downwind Low847.90.7076
Predominantly Downwind Medium602.80.9954
Predominantly Downwind High499.01.2025
Chicago-Mac Upwind0.9151
Chicago-Mac All Purpose0.9402
Chicago-Mac Downwind0.9702
Bayview-Mac Cove Island0.8775
Bayview-Mac Shore0.8874
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching567.41.0574
Predominantly Reaching Low697.10.8607
Predominantly Reaching Medium562.11.0674
Predominantly Reaching High496.71.2079
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1076.30.5575
5-Band Low / Medium899.80.6668
5-Band Medium716.20.8377
5-Band Medium / High647.50.9267
5-Band High622.70.9636
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance649.30.9240
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1094.0826.3690.2614.6573.8541.9492.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance649.30.9240
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1094.0826.3690.2614.6573.8541.9492.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance649.3
Triple Number Coastal/Long Distance Low765.9
Triple Number Coastal/Long Distance Medium592.4
Triple Number Coastal/Long Distance High533.7
Triple Number Windward/Leeward Low984.9
Triple Number Windward/Leeward Medium728.4
Triple Number Windward/Leeward High639.4
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1094.0826.3690.2614.6573.8541.9492.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance649.30.9240
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1094.0826.3690.2614.6573.8541.9492.3
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)649.30.9240
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1094.0826.3690.2614.6573.8541.9492.3
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7834
Triple Number Coastal/Long Distance Medium1.0128
Triple Number Coastal/Long Distance High1.1243
Triple Number Windward/Leeward Low0.6092
Triple Number Windward/Leeward Medium0.8237
Triple Number Windward/Leeward High0.9384
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1094.0826.3690.2614.6573.8541.9492.3
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance649.30.9240
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1094.0826.3690.2614.6573.8541.9492.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance649.30.9240
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1094.0826.3690.2614.6573.8541.9492.3
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1094.0826.3690.2614.6573.8541.9492.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low765.9
Triple Number Coastal/Long Distance Medium592.4
Triple Number Coastal/Long Distance High533.7
Triple Number Windward/Leeward Low984.9
Triple Number Windward/Leeward Medium728.4
Triple Number Windward/Leeward High639.4
Predominantly Upwind644.5
Predominantly Downwind607.1
Predominantly Reaching581.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance649.30.9240
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1094.0826.3690.2614.6573.8541.9492.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7834
Triple Number Coastal/Long Distance Medium1.0128
Triple Number Coastal/Long Distance High1.1243
Triple Number Windward/Leeward Low0.6092
Triple Number Windward/Leeward Medium0.8237
Triple Number Windward/Leeward High0.9384
Coastal/Long Distance0.9240
Predominantly Upwind0.9309
Predominantly Downwind0.9882
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7834
Tretall Distanseseilas Mellomvind1.0128
Tretall Distanseseilas Mye vind1.1243
Tretall Pølsebane Lite vind0.6092
Tretall Pølsebane Mellomvind0.8237
Tretall Pølsebane Mye vind0.9384
Distanseseilas ett tall (OSN 8-16kn)0.9240
Distanseseilas ett tall (APH 6-20kn)1.0053
Enkeltall Motvind0.9309
Enkeltall Medvind0.9882
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Coastal/Long Distance649.30.9240
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind644.50.9309
Predominantly Downwind607.10.9882
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore625.70.9589
Cape Doctor Coastal523.51.1462
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7834
Triple Number Coastal/Long Distance Medium1.0128
Triple Number Coastal/Long Distance High1.1243
Triple Number Windward/Leeward Low0.6092
Triple Number Windward/Leeward Medium0.8237
Triple Number Windward/Leeward High0.9384
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7834
Triple Number Coastal/Long Distance Medium1.0128
Triple Number Coastal/Long Distance High1.1243
Triple Number Windward/Leeward Low0.6092
Triple Number Windward/Leeward Medium0.8237
Triple Number Windward/Leeward High0.9384
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance649.30.9240
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Predominantly Upwind644.50.9309
Predominantly Downwind607.10.9882
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1094.0826.3690.2614.6573.8541.9492.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance649.30.9240
Triple Number Coastal/Long Distance Low765.90.7834
Triple Number Coastal/Long Distance Medium592.41.0128
Triple Number Coastal/Long Distance High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1094.0826.3690.2614.6573.8541.9492.3
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low765.90.7834
Triple Number All Purpose Medium592.41.0128
Triple Number All Purpose High533.71.1243
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium728.40.8237
Triple Number Windward/Leeward High639.40.9384
Predominantly Upwind644.50.9309
Predominantly Downwind607.10.9882
Predominantly Upwind Low841.80.7128
Predominantly Upwind Medium663.70.9040
Predominantly Upwind High629.70.9528
Predominantly Downwind Low847.90.7076
Predominantly Downwind Medium602.80.9954
Predominantly Downwind High499.01.2025
Chicago-Mac Upwind0.9151
Chicago-Mac All Purpose0.9402
Chicago-Mac Downwind0.9702
Bayview-Mac Cove Island0.8775
Bayview-Mac Shore0.8874
Harvest Moon Regatta516.41.1620
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy628.20.9552
San Francisco Bay Medium721.00.8322
Predominantly Reaching567.41.0574
Predominantly Reaching Low697.10.8607
Predominantly Reaching Medium562.11.0674
Predominantly Reaching High496.71.2079
Windward/Leeward 60-40 Low985.80.6086
Windward/Leeward 60-40 Medium750.60.7994
Windward/Leeward 60-40 High680.20.8821
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1076.30.5575
5-Band Low / Medium899.80.6668
5-Band Medium716.20.8377
5-Band Medium / High647.50.9267
5-Band High622.70.9636
ORC Ref  03440002K6IIssued on 02/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

JOY IV

NOR 10107

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFIRST 31.7 LRMeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.610Max. Beam3.212Draft1.940Displacement3,858Wetted area20.59IMS L8.915LSM08.884Acc. length9.610Sink (kg/mm) 15.77
VCGD0.220VCGM0.169RM Rated (kg·m) 74.7Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0033
EDL2.380ST10.050ST20.170
ST30.170ST40.100ST50.310
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P10.800IG11.900ISP11.900MDT10.100MDL10.160MDT20.100MDL20.160TL0.000MW0.160GO0.180
E3.900J3.500BAS1.710FSDFoilSFJ0.000SPL3.560WPLTPS0.000BDMWT78.00MCG3.980
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.220Flotation Date01/01/2015MeasurerComment
SFFP0.303FFMFF1.151LCFcl5.281SG1.0220
SAFP8.732FAMFA0.971LCFsh5.515HBI1.050
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440002K6IIssued on 02/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

JOY IV

NOR 10107

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment336-2021021915140.170.881.562.603.3425.7619/02/2021
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment306-2018110814370.080.641.222.463.785.1511.87NoNo 29.9508/11/2018306-2018110814290.080.500.911.772.653.5011.60NoNo 20.6208/11/2018306-2013052720360.000.000.000.000.002.999.97NoNo 15.1727/05/20134'er
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment336-20150217091311.6011.6011.606.256.1060.1317/02/2015S2 0,75 oz Målt på nytt
ORC Ref  03440002K6IIssued on 02/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org