Club
Certificate
Double Handed
2023

Boat

Jesss

NOR 427

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 Angles42.3°40.2°39.4°39.3°39.6°40.5°41.2°
Beat VMG3.363.994.234.304.324.304.19
52°5.055.836.096.196.236.256.18
60°5.296.026.296.396.466.496.49
75°5.456.146.486.696.816.906.98
90°5.476.126.556.877.127.317.54
110°5.646.416.777.067.327.588.14
120°5.546.416.937.347.708.068.78
135°5.046.106.787.408.098.8810.46
150°4.305.396.176.767.287.9710.52
Run VMG3.724.665.355.866.316.909.11
Gybe Angles144.7°148.7°150.1°149.2°146.6°144.8°144.6°

APH: 605.3

CDL: 6.700

GPH: 669.2

CertNo: 7677

BOAT
ClassJ-80 ODDesignerJOHNSTONEBuilderJ Composite FranceAge date01/2002Series date01/1995Offset filej80.od+.offData file7677
HULL
Length Overall8.032 mMaximum Beam2.488 mDraft1.497 mDisplacement1,437 kgDLR4.5633IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight170 kgMinimum weight120 kg * when appliedNon Manual PowerNoCrew Arm Extension-0.20 m
SAIL AREAS (m²)
MeasuredRatedMainsail20.9121.53Headsail Luffed13.9813.98Headsail FlyingSymmetricAsymmetric64.9964.99 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail6.10Storm Jib4.58Heavy Weather Jib12.35
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  03440002K0EIssued on 30/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Jesss

NOR 427

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 VMG1071.8902.4851.7837.0834.0836.3859.2
52°712.4617.5591.1581.8577.5575.7582.3
60°680.8598.4572.8563.0557.6554.5555.1
75°660.8585.9555.2538.3528.4521.8515.9
90°658.2588.2549.9524.1505.3492.2477.4
110°638.6562.0531.7510.1491.7475.1442.1
120°649.8561.8519.7490.4467.6446.6409.9
135°714.0589.9530.7486.4444.8405.4344.1
150°837.4668.4583.3532.4494.2451.9342.1
Run VMG967.0771.8673.4614.8570.7521.8395.0
Selected Courses
Windward / Leeward1019.4837.1762.6725.9702.3679.1627.1
All purpose793.7670.7620.4593.0573.6556.3524.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward744.70.8057
All purpose605.30.9912
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance654.70.9164
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1014.1790.5692.1633.6596.5561.3496.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6783
Downwind "popa"0.9303
70% up, 30% down "Ilhabela"0.7383
30% up, 70% down "Ilhabela-inverso"0.8370
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Predominantly Upwind665.00.9022
Predominantly Downwind589.41.0179
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low732.20.8194
Triple Number All Purpose Medium603.70.9938
Triple Number All Purpose High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Predominantly Upwind665.00.9022
Predominantly Downwind589.41.0179
Predominantly Upwind Low823.00.7290
Predominantly Upwind Medium700.90.8561
Predominantly Upwind High685.70.8750
Predominantly Downwind Low780.00.7693
Predominantly Downwind Medium582.11.0308
Predominantly Downwind High470.21.2761
Chicago-Mac Upwind0.8870
Chicago-Mac All Purpose0.9394
Chicago-Mac Downwind1.0010
Bayview-Mac Cove Island0.8860
Bayview-Mac Shore0.8857
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching567.61.0570
Predominantly Reaching Low667.30.8992
Predominantly Reaching Medium561.61.0683
Predominantly Reaching High494.71.2129
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1005.30.5968
5-Band Low / Medium863.30.6950
5-Band Medium733.40.8181
5-Band Medium / High678.20.8848
5-Band High636.10.9433
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance654.70.9164
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1014.1790.5692.1633.6596.5561.3496.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance654.70.9164
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1014.1790.5692.1633.6596.5561.3496.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance654.7
Triple Number Coastal/Long Distance Low732.2
Triple Number Coastal/Long Distance Medium603.7
Triple Number Coastal/Long Distance High548.7
Triple Number Windward/Leeward Low928.2
Triple Number Windward/Leeward Medium741.5
Triple Number Windward/Leeward High665.4
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1014.1790.5692.1633.6596.5561.3496.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance654.70.9164
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1014.1790.5692.1633.6596.5561.3496.4
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)654.70.9164
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1014.1790.5692.1633.6596.5561.3496.4
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8194
Triple Number Coastal/Long Distance Medium0.9938
Triple Number Coastal/Long Distance High1.0934
Triple Number Windward/Leeward Low0.6464
Triple Number Windward/Leeward Medium0.8092
Triple Number Windward/Leeward High0.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1014.1790.5692.1633.6596.5561.3496.4
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance654.70.9164
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1014.1790.5692.1633.6596.5561.3496.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance654.70.9164
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1014.1790.5692.1633.6596.5561.3496.4
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1014.1790.5692.1633.6596.5561.3496.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low732.2
Triple Number Coastal/Long Distance Medium603.7
Triple Number Coastal/Long Distance High548.7
Triple Number Windward/Leeward Low928.2
Triple Number Windward/Leeward Medium741.5
Triple Number Windward/Leeward High665.4
Predominantly Upwind665.0
Predominantly Downwind589.4
Predominantly Reaching573.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance654.70.9164
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1014.1790.5692.1633.6596.5561.3496.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8194
Triple Number Coastal/Long Distance Medium0.9938
Triple Number Coastal/Long Distance High1.0934
Triple Number Windward/Leeward Low0.6464
Triple Number Windward/Leeward Medium0.8092
Triple Number Windward/Leeward High0.9017
Coastal/Long Distance0.9164
Predominantly Upwind0.9022
Predominantly Downwind1.0179
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8194
Tretall Distanseseilas Mellomvind0.9938
Tretall Distanseseilas Mye vind1.0934
Tretall Pølsebane Lite vind0.6464
Tretall Pølsebane Mellomvind0.8092
Tretall Pølsebane Mye vind0.9017
Distanseseilas ett tall (OSN 8-16kn)0.9164
Distanseseilas ett tall (APH 6-20kn)0.9912
Enkeltall Motvind0.9022
Enkeltall Medvind1.0179
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Coastal/Long Distance654.70.9164
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind665.00.9022
Predominantly Downwind589.41.0179
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore642.70.9336
Cape Doctor Coastal534.21.1233
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8194
Triple Number Coastal/Long Distance Medium0.9938
Triple Number Coastal/Long Distance High1.0934
Triple Number Windward/Leeward Low0.6464
Triple Number Windward/Leeward Medium0.8092
Triple Number Windward/Leeward High0.9017
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8194
Triple Number Coastal/Long Distance Medium0.9938
Triple Number Coastal/Long Distance High1.0934
Triple Number Windward/Leeward Low0.6464
Triple Number Windward/Leeward Medium0.8092
Triple Number Windward/Leeward High0.9017
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance654.70.9164
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Predominantly Upwind665.00.9022
Predominantly Downwind589.41.0179
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1014.1790.5692.1633.6596.5561.3496.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance654.70.9164
Triple Number Coastal/Long Distance Low732.20.8194
Triple Number Coastal/Long Distance Medium603.70.9938
Triple Number Coastal/Long Distance High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1014.1790.5692.1633.6596.5561.3496.4
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low732.20.8194
Triple Number All Purpose Medium603.70.9938
Triple Number All Purpose High548.71.0934
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium741.50.8092
Triple Number Windward/Leeward High665.40.9017
Predominantly Upwind665.00.9022
Predominantly Downwind589.41.0179
Predominantly Upwind Low823.00.7290
Predominantly Upwind Medium700.90.8561
Predominantly Upwind High685.70.8750
Predominantly Downwind Low780.00.7693
Predominantly Downwind Medium582.11.0308
Predominantly Downwind High470.21.2761
Chicago-Mac Upwind0.8870
Chicago-Mac All Purpose0.9394
Chicago-Mac Downwind1.0010
Bayview-Mac Cove Island0.8860
Bayview-Mac Shore0.8857
Harvest Moon Regatta514.91.1652
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy650.60.9222
San Francisco Bay Medium725.20.8274
Predominantly Reaching567.61.0570
Predominantly Reaching Low667.30.8992
Predominantly Reaching Medium561.61.0683
Predominantly Reaching High494.71.2129
Windward/Leeward 60-40 Low940.00.6383
Windward/Leeward 60-40 Medium777.20.7720
Windward/Leeward 60-40 High726.30.8261
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1005.30.5968
5-Band Low / Medium863.30.6950
5-Band Medium733.40.8181
5-Band Medium / High678.20.8848
5-Band High636.10.9433
ORC Ref  03440002K0EIssued on 30/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Jesss

NOR 427

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-80 ODMeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA8.032Max. Beam2.488Draft1.497Displacement1,437Wetted area11.80IMS L7.034LSM06.802Acc. length8.032Sink (kg/mm) 9.00
VCGD-0.154VCGM-0.081RM Rated (kg·m) 27.1Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
PIPA0.0000
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P9.144IG9.563ISP10.073MDT10.082MDL10.133MDT20.063MDL20.104TL0.380MW0.133GO0.133
E3.810J2.895BAS1.300FSD0.027SFJ0.000SPLWPLTPS4.800BD0.094MWT33.10MCG3.210
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date06/03/2020MeasurerComment
SFFP0.177FFMFF0.877LCFcl4.258SG1.0250
SAFP8.015FAMFA0.627LCFsh4.434HBI0.739
W123.0W223.0W323.0W423.0
PD1524.7PD2524.3PD3525.0PD4524.9
WD7.850PLM9000.00GSA1.0RSA1.0RM27.1
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGAEngineOUTBOARD ENGINE MINIMUM 12.5 KgTotal deductible
ORC Ref  03440002K0EIssued on 30/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Jesss

NOR 427

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentORC0.160.791.452.483.2420.91* Copied from legacy *
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC0.081.482.959.30YesNo 13.98* Copied from legacy *
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentORC12.209.9011.056.987.3795%64.99
ORC Ref  03440002K0EIssued on 30/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org