Non Spin/HSFClub Certificate2025
JilboNOR 477
Norges Seilforbund
Sognsveien 73
0854 OSLO
Rated boat velocities in knots
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles43.1°43.1°41.1°38.7°37.8°37.7°37.7°38.3°40.6°
Beat VMG2.353.233.924.384.564.634.674.684.52
52°3.674.925.776.216.396.476.536.586.54
60°3.925.185.976.366.576.676.756.836.83
75°4.085.346.106.506.797.007.127.307.38
90°3.965.236.056.516.877.197.467.848.09
110°3.404.695.696.306.737.177.598.569.49
120°3.164.415.436.136.576.997.438.4910.50
135°2.683.844.875.696.256.657.057.949.24
150°2.243.254.205.035.726.216.577.308.19
Run VMG1.932.823.674.515.265.896.337.077.89
Gybe Angles145.3°145.3°175.7°178.4°179.3°179.9°180.0°180.0°180.0°
APH ToD:633.5CDL: 7.179APH ToT: 0.9472CertNo:667217
BOAT
ClassJ/80DesignerRodJohnstoneBuilderJ-BoatsAge date01/2002Series date01/1992Offset fileJ80.OD+.offData file667217
HULL
Length Overall8.032 mMaximum Beam2.488 mDraft1.501 mDisplacement1,466 kgDLR4.5987IMS DivisionSportboatDynamic Allowance0.220%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight350 kg(declared)Minimum weight220 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension0.20 m
SAIL AREAS (m²)
MeasuredRatedMainsail20.9821.68Headsail Luffed13.8113.81Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail6.01Storm Jib4.57Heavy Weather Jib12.34
SAIL LIMITS
Headsails1
✱ One set on the forestay
✱ Zero set flying
Spinnakers0
✱ No spinnaker pole aboard
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.
Non Spin/HSFClub Certificate2025
JilboNOR 477
Norges Seilforbund
Sognsveien 73
0854 OSLO
Time Allowances in secs/NM
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1533.11113.8918.1821.4789.5777.4771.2769.6796.5
52°980.8731.6623.9579.9563.6556.4551.7546.7550.9
60°918.0695.4603.3566.0548.1539.4533.6526.7527.3
75°882.5674.3590.3554.0529.9514.6505.6493.3488.1
90°909.4687.7595.0553.3524.0500.4482.7459.0445.2
110°1059.5767.0632.8571.3534.6502.4474.0420.5379.2
120°1141.0815.6662.4587.4547.7514.9484.6424.2342.9
135°1345.7937.6738.9632.5576.1541.1510.4453.4389.8
150°1609.01106.5858.1715.6629.6580.0548.2493.0439.4
Run VMG1866.61277.6981.2798.3683.9611.3568.8509.4456.5
Selected Courses
Windward / Leeward1697.61195.7949.7809.8736.7694.3670.0639.5626.5
All purpose1264.5910.3743.0655.9610.3582.3562.9533.1512.5
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward775.60.7736
All purpose633.50.9472
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance691.60.8676
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.91203.9895.7735.4650.6604.8569.4506.7475.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7046
Downwind "popa"0.7734
70% up, 30% down "Ilhabela"0.7239
30% up, 70% down "Ilhabela-inverso"0.7514
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Predominantly Upwind672.80.8918
Predominantly Downwind658.70.9109
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low826.60.7258
Triple Number AP Medium629.60.9530
Triple Number AP High556.61.0780
Triple Number Windward/Leeward Low1121.40.5350
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Single Number Predominant Upwind698.90.8584
Single Number Predominant Reaching631.00.9509
Single Number Predominant Downwind691.00.8684
Predominant Upwind - Low960.00.6250
Predominant Upwind - Low/Med733.80.8177
Predominant Upwind - Medium650.30.9227
Predominant Upwind - Med/High610.50.9828
Predominant Upwind - High594.01.0102
Predominant Downwind Low1054.70.5689
Predominant Downwind Low/Med760.20.7892
Predominant Downwind Medium631.60.9500
Predominant Downwind Med/High553.51.0840
Predominant Downwind High508.51.1799
Predominant Reaching Low890.40.6738
Predominant Reaching Low/Med675.20.8887
Predominant Reaching Medium588.01.0204
Predominant Reaching Med/High535.01.1215
Predominant Reaching High503.21.1924
SA/DSPL Upwind26.92SA/DSPL Downwind26.92
Scoring OptionTODTOT
5-Band Windward/Leeward Low1260.20.4761
5-Band Windward/Leeward Low/Med905.20.6629
5-Band Windward/Leeward Medium753.90.7959
5-Band Windward/Leeward Med/High674.50.8895
5-Band Windward/Leeward High642.50.9338
Windward/Leeward 60-40 Low1242.10.4830
Windward/Leeward 60-40 Low/Med902.90.6645
Windward/Leeward 60-40 Medium763.50.7859
Windward/Leeward 60-40 Med/High694.30.8641
Windward/Leeward 60-40 High668.90.8970
5-Band AP Low926.80.6474
5-Band AP Low/Med717.30.8364
5-Band AP Medium620.20.9674
5-Band AP Med/High565.11.0617
5-Band AP High534.71.1221
5-Band SF Bay Tour - Low1076.20.5575
5-Band SF Bay Tour - Low/Med863.60.6948
5-Band SF Bay Tour - Medium730.50.8213
5-Band SF Bay Tour - Med/High662.10.9061
5-Band SF Bay Tour - High632.00.9494
Chicago-Mac Upwind0.8337
Chicago-Mac All Purpose0.8384
Chicago-Mac Downwind0.8330
Bayview-Mac Cove Island0.6032
Bayview-Mac Shore0.6104
Harvest Moon Regatta548.31.0943
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance691.60.8676
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.91203.9895.7735.4650.6604.8569.4506.7475.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance691.60.8676
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.91203.9895.7735.4650.6604.8569.4506.7475.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance691.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.91203.9895.7735.4650.6604.8569.4506.7475.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating683.00.8785
FinRating, kevyt tuuli1240.50.8061
FinRating, kova tuuli535.90.9330
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8676
Triple Number Coastal/Long Distance Low0.7258
Triple Number Coastal/Long Distance Medium0.9531
Triple Number Coastal/Long Distance High1.0780
Triple Number Windward/Leeward Low0.5593
Triple Number Windward/Leeward Medium0.7810
Triple Number Windward/Leeward High0.9028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.91203.9895.7735.4650.6604.8569.4506.7475.8
For information
General Purpose Handicap (GPH)713.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance691.60.8676
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.91203.9895.7735.4650.6604.8569.4506.7475.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance691.60.8676
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.91203.9895.7735.4650.6604.8569.4506.7475.8
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance691.60.8676
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.91203.9895.7735.4650.6604.8569.4506.7475.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low826.7
Triple Number Coastal/Long Distance Medium629.5
Triple Number Coastal/Long Distance High556.6
Triple Number Windward/Leeward Low1072.8
Triple Number Windward/Leeward Medium768.2
Triple Number Windward/Leeward High664.6
Predominantly Upwind672.8
Predominantly Downwind658.7
Predominantly Reaching622.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance691.60.8676
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.91203.9895.7735.4650.6604.8569.4506.7475.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7258
Triple Number Coastal/Long Distance Medium0.9531
Triple Number Coastal/Long Distance High1.0780
Triple Number Windward/Leeward Low0.5593
Triple Number Windward/Leeward Medium0.7810
Triple Number Windward/Leeward High0.9028
Coastal/Long Distance0.8676
Predominantly Upwind0.8918
Predominantly Downwind0.9109
For information
General Purpose Handicap (GPH)713.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9472
Distanseseilas Trippeltall svak vind0.7258
Distanseseilas Trippeltall mellomvind0.9531
Distanseseilas Trippeltall sterk vind1.0780
Pølsebane Trippeltall svak vind0.5593
Pølsebane Trippeltall mellomvind0.7810
Pølsebane Trippeltall sterk vind0.9028
Motvind Singeltall0.8918
Medvind Singeltall0.9109
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Coastal/Long Distance691.60.8676
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind672.80.8918
Predominantly Downwind658.70.9109
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore630.40.9518
Cape Doctor Coastal518.71.1567
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7258
Triple Number Coastal/Long Distance Medium0.9531
Triple Number Coastal/Long Distance High1.0780
Triple Number Windward/Leeward Low0.5593
Triple Number Windward/Leeward Medium0.7810
Triple Number Windward/Leeward High0.9028
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7258
Triple Number Coastal/Long Distance Medium0.9531
Triple Number Coastal/Long Distance High1.0780
Triple Number Windward/Leeward Low0.5593
Triple Number Windward/Leeward Medium0.7810
Triple Number Windward/Leeward High0.9028
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance691.60.8676
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Predominantly Upwind672.80.8918
Predominantly Downwind658.70.9109
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.91203.9895.7735.4650.6604.8569.4506.7475.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance691.60.8676
Triple Number Coastal/Long Distance Low826.70.7258
Triple Number Coastal/Long Distance Medium629.50.9531
Triple Number Coastal/Long Distance High556.61.0780
Triple Number Windward/Leeward Low1072.80.5593
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.91203.9895.7735.4650.6604.8569.4506.7475.8
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low826.60.7258
Triple Number AP Medium629.60.9530
Triple Number AP High556.61.0780
Triple Number Windward/Leeward Low1121.40.5350
Triple Number Windward/Leeward Medium768.20.7810
Triple Number Windward/Leeward High664.60.9028
Single Number Predominant Upwind698.90.8584
Single Number Predominant Reaching631.00.9509
Single Number Predominant Downwind691.00.8684
Predominant Upwind - Low960.00.6250
Predominant Upwind - Low/Med733.80.8177
Predominant Upwind - Medium650.30.9227
Predominant Upwind - Med/High610.50.9828
Predominant Upwind - High594.01.0102
Predominant Downwind Low1054.70.5689
Predominant Downwind Low/Med760.20.7892
Predominant Downwind Medium631.60.9500
Predominant Downwind Med/High553.51.0840
Predominant Downwind High508.51.1799
Predominant Reaching Low890.40.6738
Predominant Reaching Low/Med675.20.8887
Predominant Reaching Medium588.01.0204
Predominant Reaching Med/High535.01.1215
Predominant Reaching High503.21.1924
SA/DSPL Upwind26.92SA/DSPL Downwind26.92
Scoring OptionTODTOT
5-Band Windward/Leeward Low1260.20.4761
5-Band Windward/Leeward Low/Med905.20.6629
5-Band Windward/Leeward Medium753.90.7959
5-Band Windward/Leeward Med/High674.50.8895
5-Band Windward/Leeward High642.50.9338
Windward/Leeward 60-40 Low1242.10.4830
Windward/Leeward 60-40 Low/Med902.90.6645
Windward/Leeward 60-40 Medium763.50.7859
Windward/Leeward 60-40 Med/High694.30.8641
Windward/Leeward 60-40 High668.90.8970
5-Band AP Low926.80.6474
5-Band AP Low/Med717.30.8364
5-Band AP Medium620.20.9674
5-Band AP Med/High565.11.0617
5-Band AP High534.71.1221
5-Band SF Bay Tour - Low1076.20.5575
5-Band SF Bay Tour - Low/Med863.60.6948
5-Band SF Bay Tour - Medium730.50.8213
5-Band SF Bay Tour - Med/High662.10.9061
5-Band SF Bay Tour - High632.00.9494
Chicago-Mac Upwind0.8337
Chicago-Mac All Purpose0.8384
Chicago-Mac Downwind0.8330
Bayview-Mac Cove Island0.6032
Bayview-Mac Shore0.6104
Harvest Moon Regatta548.31.0943
Non Spin/HSFClub Certificate2025
JilboNOR 477
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ/80MeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.032Max. Beam2.488Draft1.501Displacement1,466Wetted area11.88IMS L7.203LSM06.831Acc. length8.032Sink (kg/mm) 9.06
VCGD-0.150VCGM-0.080RM Rated (kg·m) 27.5Limit of positive stability(°) N/AStability IndexN/ADefault crew weight400Declared crew weight350
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P9.000IG9.560ISP10.070MDT10.080MDL10.130MDT20.063MDL20.100TL0.380MW0.130GO0.130
E3.810J2.900BAS1.300FSD0.025SFJ0.000SPL0.000WPLTPS4.800BD0.000MWT51.70MCG3.700
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.150Flotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Non Spin/HSFClub Certificate2025
JilboNOR 477
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment336-2021031115250.280.881.532.523.2420.9811/03/2021Luff 8,99 Leech 9,64
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment441-2020102214380.070.410.781.472.242.919.27YesNo 13.8122/10/2020
CRUISER/RACER REQUIREMENTS*
Accommodation length8.0 mTable area0.33 m²Headroom1.40 mMinimum number of berths3Personal gear stowage0.12 m³Fresh water capacity30 lMinimum number of seats in cockpit3Food stowage0.18 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.