Club
Certificate
Double Handed
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 Angles42.4°40.6°39.9°39.4°39.6°39.9°40.8°
Beat VMG3.333.994.354.484.544.564.48
52°5.035.896.346.516.596.636.62
60°5.286.126.566.746.836.876.89
75°5.446.286.746.997.137.217.29
90°5.356.246.767.087.317.507.71
110°5.176.246.877.257.557.738.02
120°5.026.116.807.247.617.948.41
135°4.505.616.456.997.407.818.66
150°3.794.885.806.537.017.408.21
Run VMG3.284.235.045.756.356.847.59
Gybe Angles145.7°149.6°152.9°158.6°170.0°177.2°178.1°

APH: 603.2

CDL: 7.879

GPH: 674.7

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 weight170 kgMinimum weight120 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  03440002K7JIssued on 02/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
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 VMG1080.6901.8828.1803.1793.2789.8802.8
52°715.3610.9568.1553.1546.3543.1544.0
60°682.2588.3549.0533.8527.1523.7522.2
75°661.2573.5534.2515.1505.0499.1493.7
90°673.0577.3532.4508.4492.2479.9466.6
110°696.1577.2524.2496.5477.0465.6449.0
120°717.3589.1529.1497.3473.3453.2428.0
135°799.6641.3558.1515.3486.7461.2415.8
150°949.3737.9620.4551.6513.5486.3438.6
Run VMG1096.1852.0714.3626.6567.3526.2474.2
Selected Courses
Windward / Leeward1088.3876.9771.2714.8680.3658.0638.5
All purpose839.1690.4619.0582.9561.4547.1531.0
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward744.60.8058
All purpose603.20.9947
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance655.80.9148
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1089.1826.2696.0623.2582.8550.9502.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7001
Downwind "popa"0.8648
70% up, 30% down "Ilhabela"0.7425
30% up, 70% down "Ilhabela-inverso"0.8078
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Predominantly Upwind654.20.9171
Predominantly Downwind607.80.9871
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low764.80.7845
Triple Number All Purpose Medium598.51.0025
Triple Number All Purpose High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Predominantly Upwind654.20.9171
Predominantly Downwind607.80.9871
Predominantly Upwind Low841.90.7127
Predominantly Upwind Medium678.00.8849
Predominantly Upwind High652.20.9200
Predominantly Downwind Low844.20.7107
Predominantly Downwind Medium601.50.9974
Predominantly Downwind High499.31.2016
Chicago-Mac Upwind0.9014
Chicago-Mac All Purpose0.9329
Chicago-Mac Downwind0.9690
Bayview-Mac Cove Island0.8746
Bayview-Mac Shore0.8827
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching570.41.0518
Predominantly Reaching Low695.50.8627
Predominantly Reaching Medium564.31.0633
Predominantly Reaching High502.01.1952
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1072.10.5597
5-Band Low / Medium901.00.6659
5-Band Medium727.10.8252
5-Band Medium / High663.30.9046
5-Band High641.90.9348
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance655.80.9148
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1089.1826.2696.0623.2582.8550.9502.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance655.80.9148
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1089.1826.2696.0623.2582.8550.9502.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance655.8
Triple Number Coastal/Long Distance Low764.8
Triple Number Coastal/Long Distance Medium598.5
Triple Number Coastal/Long Distance High544.6
Triple Number Windward/Leeward Low982.6
Triple Number Windward/Leeward Medium738.5
Triple Number Windward/Leeward High656.2
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1089.1826.2696.0623.2582.8550.9502.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance655.80.9148
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1089.1826.2696.0623.2582.8550.9502.4
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)655.80.9148
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1089.1826.2696.0623.2582.8550.9502.4
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7845
Triple Number Coastal/Long Distance Medium1.0025
Triple Number Coastal/Long Distance High1.1017
Triple Number Windward/Leeward Low0.6106
Triple Number Windward/Leeward Medium0.8125
Triple Number Windward/Leeward High0.9143
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1089.1826.2696.0623.2582.8550.9502.4
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance655.80.9148
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1089.1826.2696.0623.2582.8550.9502.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance655.80.9148
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1089.1826.2696.0623.2582.8550.9502.4
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1089.1826.2696.0623.2582.8550.9502.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low764.8
Triple Number Coastal/Long Distance Medium598.5
Triple Number Coastal/Long Distance High544.6
Triple Number Windward/Leeward Low982.6
Triple Number Windward/Leeward Medium738.5
Triple Number Windward/Leeward High656.2
Predominantly Upwind654.2
Predominantly Downwind607.8
Predominantly Reaching583.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance655.80.9148
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1089.1826.2696.0623.2582.8550.9502.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7845
Triple Number Coastal/Long Distance Medium1.0025
Triple Number Coastal/Long Distance High1.1017
Triple Number Windward/Leeward Low0.6106
Triple Number Windward/Leeward Medium0.8125
Triple Number Windward/Leeward High0.9143
Coastal/Long Distance0.9148
Predominantly Upwind0.9171
Predominantly Downwind0.9871
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7845
Tretall Distanseseilas Mellomvind1.0025
Tretall Distanseseilas Mye vind1.1017
Tretall Pølsebane Lite vind0.6106
Tretall Pølsebane Mellomvind0.8125
Tretall Pølsebane Mye vind0.9143
Distanseseilas ett tall (OSN 8-16kn)0.9148
Distanseseilas ett tall (APH 6-20kn)0.9947
Enkeltall Motvind0.9171
Enkeltall Medvind0.9871
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Coastal/Long Distance655.80.9148
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind654.20.9171
Predominantly Downwind607.80.9871
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore644.30.9312
Cape Doctor Coastal535.81.1198
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7845
Triple Number Coastal/Long Distance Medium1.0025
Triple Number Coastal/Long Distance High1.1017
Triple Number Windward/Leeward Low0.6106
Triple Number Windward/Leeward Medium0.8125
Triple Number Windward/Leeward High0.9143
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7845
Triple Number Coastal/Long Distance Medium1.0025
Triple Number Coastal/Long Distance High1.1017
Triple Number Windward/Leeward Low0.6106
Triple Number Windward/Leeward Medium0.8125
Triple Number Windward/Leeward High0.9143
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance655.80.9148
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Predominantly Upwind654.20.9171
Predominantly Downwind607.80.9871
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1089.1826.2696.0623.2582.8550.9502.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance655.80.9148
Triple Number Coastal/Long Distance Low764.80.7845
Triple Number Coastal/Long Distance Medium598.51.0025
Triple Number Coastal/Long Distance High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1089.1826.2696.0623.2582.8550.9502.4
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low764.80.7845
Triple Number All Purpose Medium598.51.0025
Triple Number All Purpose High544.61.1017
Triple Number Windward/Leeward Low982.60.6106
Triple Number Windward/Leeward Medium738.50.8125
Triple Number Windward/Leeward High656.20.9143
Predominantly Upwind654.20.9171
Predominantly Downwind607.80.9871
Predominantly Upwind Low841.90.7127
Predominantly Upwind Medium678.00.8849
Predominantly Upwind High652.20.9200
Predominantly Downwind Low844.20.7107
Predominantly Downwind Medium601.50.9974
Predominantly Downwind High499.31.2016
Chicago-Mac Upwind0.9014
Chicago-Mac All Purpose0.9329
Chicago-Mac Downwind0.9690
Bayview-Mac Cove Island0.8746
Bayview-Mac Shore0.8827
Harvest Moon Regatta518.51.1571
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy644.90.9303
San Francisco Bay Medium730.20.8217
Predominantly Reaching570.41.0518
Predominantly Reaching Low695.50.8627
Predominantly Reaching Medium564.31.0633
Predominantly Reaching High502.01.1952
Windward/Leeward 60-40 Low984.30.6095
Windward/Leeward 60-40 Medium765.30.7840
Windward/Leeward 60-40 High703.60.8527
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1072.10.5597
5-Band Low / Medium901.00.6659
5-Band Medium727.10.8252
5-Band Medium / High663.30.9046
5-Band High641.90.9348
ORC Ref  03440002K7JIssued on 02/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
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 L8.843LSM08.884Acc. 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  03440002K7JIssued on 02/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
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  03440002K7JIssued on 02/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org