Club Certificate2026
JesssNOR 427
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 Angles45.6°43.0°40.7°38.3°37.5°37.3°37.3°37.8°40.1°
Beat VMG2.293.253.944.404.574.644.684.694.53
52°3.594.935.776.206.376.466.516.576.52
60°3.855.185.966.356.556.656.726.816.80
75°4.035.336.096.496.776.977.087.267.33
90°3.985.506.286.566.857.177.437.838.09
110°4.105.656.496.987.337.668.008.689.31
120°3.995.546.447.017.538.098.579.5110.49
135°3.565.026.066.717.308.018.9411.1212.98
150°2.964.265.336.136.707.197.7810.0213.64
Run VMG2.573.694.625.325.836.246.748.6811.81
Gybe Angles140.5°144.2°148.6°151.9°153.5°152.5°146.0°142.4°147.1°
APH ToD:593.1CDL: 7.185APH ToT: 1.0116CertNo:7677
BOAT
ClassJ-80 ODDesignerJohnstoneBuilderJ Composite FranceAge date01/2002Series date01/1992Offset fileJ80.OD+.offData file7677
HULL
Length Overall8.032 mMaximum Beam2.488 mDraft1.499 mDisplacement1,453 kgDLR4.5839IMS DivisionSportboatDynamic Allowance0.140%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight350 kg(declared)Minimum weight220 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail20.9621.61Headsail Luffed13.8213.82Headsail FlyingSymmetricAsymmetric63.6863.68 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS Maximum (m²)
Trysail6.10Storm Jib4.57Heavy Weather Jib12.34
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 27.2 kg·m Stability Index 105.5
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  03440004NKK Issued on 29/04/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
JesssNOR 427
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 VMG1569.21109.3913.3818.7788.6775.9769.1766.9793.8
52°1003.2730.5623.7580.4564.9557.7552.9548.0552.3
60°936.1695.3604.0566.6549.5541.2535.4528.7529.7
75°894.3675.3591.3554.9531.5516.8508.1496.2491.2
90°903.4654.8573.3548.5525.4502.4484.8459.9444.8
110°877.3636.7555.0516.0491.0470.0450.2414.5386.6
120°902.2650.2559.4513.4477.8445.0420.1378.6343.1
135°1009.8717.5594.2536.8493.1449.4402.7323.6277.4
150°1214.7844.7675.4587.2537.3500.5462.6359.3264.0
Run VMG1402.6975.4779.8676.8617.0577.1534.1414.9304.8
Selected Courses
Windward / Leeward1485.91042.3846.6747.8702.8676.5651.6590.9549.3
All purpose1130.4806.8674.0611.4578.8555.9535.4494.9469.3
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward727.20.8251
All purpose593.11.0116
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance642.70.9335
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1477.61035.6797.9680.6616.4576.6540.4472.9443.4
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7068
Downwind "popa"0.9180
70% up, 30% down "Ilhabela"0.7592
30% up, 70% down "Ilhabela-inverso"0.8425
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Predominantly Upwind650.20.9228
Predominantly Downwind588.41.0197
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP613.20.9784 Predom. Rc High461.61.2998 5B SF Bay L/M783.60.7657 TriNum AP Low740.40.8104 Predom. Dn Low872.40.6878 5B SF Bay Med688.20.8719 TriNum AP Med591.91.0136 Predom. Dn L/M660.10.9090 5B SF Bay M/H629.00.9539 TriNum AP High525.41.1421 Predom. Dn Med574.21.0450 5B SF Bay High581.31.0322 TriNum W/L Low988.70.6068 Predom. Dn M/H502.41.1943 5B AP Low814.00.7371 TriNum W/L Med723.20.8297 Predom. Dn High436.71.3740 5B AP L/M657.40.9127 TriNum W/L Hig635.10.9448 ChiMac Up Low805.40.7450 5B AP Med584.71.0263 Predom. Upwind675.20.8887 ChiMac Up Med732.50.8191 5B AP M/H535.71.1200 Predom. Reaching584.81.0259 ChiMac Up High646.30.9284 5B AP High497.51.2061 Predom. Downwind608.60.9859 ChiMac Off Low760.00.7895 5B W/L Low1104.30.5433 Predom. Up Low909.30.6599 ChiMac Off Med676.00.8875 5B W/L L/M819.30.7323 Predom. Up L/M703.00.8535 ChiMac Off High569.41.0538 5B W/L Med713.50.8409 Predom. Up Med633.20.9475 ChiMac AP Low779.80.7695 5B W/L M/H649.80.9233 Predom. Up M/H595.11.0083 ChiMac AP Med702.50.8541 5B W/L High594.21.0097 Predom. Up High572.71.0477 ChiMac AP High607.10.9884 W/L 60-40 Low1118.50.5364 Predom. Rc Low793.10.7565 BayMac Cove Island891.30.6732 W/L 60-40 L/M833.60.7198 Predom. Rc L/M619.90.9679 BayMac Shore885.60.6775 W/L 60-40 Med730.80.8210 Predom. Rc Med555.01.0812 Harvest Moon513.61.1683 W/L 60-40 M/H674.20.8900 Predom. Rc M/H502.11.1949 5B SF Bay Low938.50.6393 W/L 60-40 High629.80.9527      SA/DSPL Up27.08SA/DSPL Dn65.91
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance642.70.9335
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1477.61035.6797.9680.6616.4576.6540.4472.9443.4
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance642.70.9335
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1477.61035.6797.9680.6616.4576.6540.4472.9443.4
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance642.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1477.61035.6797.9680.6616.4576.6540.4472.9443.4
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating642.70.9335
FinRating, kevyt tuuli1085.50.9213
FinRating, kova tuuli498.61.0028
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9335
Triple Number Coastal/Long Distance Low0.8104
Triple Number Coastal/Long Distance Medium1.0137
Triple Number Coastal/Long Distance High1.1421
Triple Number Windward/Leeward Low0.6353
Triple Number Windward/Leeward Medium0.8297
Triple Number Windward/Leeward High0.9448
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1477.61035.6797.9680.6616.4576.6540.4472.9443.4
For information
General Purpose Handicap (GPH)661.1
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance642.70.9335
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Saronikos S All Purpose665.30.9018
Saronikos S Upwind770.90.7783
Saronikos S Downwind533.61.1245
Saronikos N All Purpose707.80.8477
Saronikos N Upwind806.30.7441
Saronikos N Downwind598.71.0022
Saronikos SW All Purpose666.10.9007
Saronikos SW Upwind788.60.7608
Saronikos SW Downwind543.71.1035
Saronikos NE All Purpose726.70.8257
Saronikos NE Upwind756.50.7932
Saronikos NE Downwind665.00.9022
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1477.61035.6797.9680.6616.4576.6540.4472.9443.4
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose613.20.9784
5-Band All Purpose Low887.40.6761
5-Band All Purpose L/M680.20.8821
5-Band All Purpose Med603.40.9944
5-Band All Purpose M/H549.11.0927
5-Band All Purpose High505.81.1863
Single Number Predominant Upwind648.80.9248
Single Number Predominant Reaching566.21.0596
Single Number Predominant Downwind589.81.0173
5-Band 50-50 Windward/Leeward Low1104.30.5433
5-Band 50-50 Windward/Leeward L/M819.30.7323
5-Band 50-50 Windward/Leeward Med713.50.8409
5-Band 50-50 Windward/Leeward M/H649.80.9233
5-Band 50-50 Windward/Leeward High594.21.0097
5-Band 60-40 Windward/Leeward Low1118.50.5364
5-Band 60-40 Windward/Leeward L/M833.60.7198
5-Band 60-40 Windward/Leeward Med730.80.8210
5-Band 60-40 Windward/Leeward M/H674.20.8900
5-Band 60-40 Windward/Leeward High629.80.9527
Triple Number 50-50 Windward/Leeward Low988.70.6068
Triple Number 50-50 Windward/Leeward Med723.30.8296
Triple Number 50-50 Windward/Leeward High635.10.9448
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward745.20.8051
Triple Number 60-40 Windward/Leeward Low1002.50.5985
Triple Number 60-40 Windward/Leeward Med739.80.8110
Triple Number 60-40 Windward/Leeward High662.10.9063
Triple Number All-Purpose Low801.80.7483
Triple Number All-Purpose Med611.30.9816
Triple Number All-Purpose High537.41.1165
Triple Number Predominant Upwind Low829.60.7232
Triple Number Predominant Upwind Med641.70.9350
Triple Number Predominant Upwind High598.41.0027
Triple Number Predominant Reaching Low725.80.8266
Triple Number Predominant Reaching Med572.11.0488
Triple Number Predominant Reaching High481.41.2464
Triple Number Predominant Downwind Low785.70.7636
Triple Number Predominant Downwind Med583.81.0278
Triple Number Predominant Downwind High471.11.2736
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance642.70.9335
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1477.61035.6797.9680.6616.4576.6540.4472.9443.4
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance642.70.9335
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1477.61035.6797.9680.6616.4576.6540.4472.9443.4
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low740.4
Triple Number Coastal/Long Distance Medium591.9
Triple Number Coastal/Long Distance High525.3
Triple Number Windward/Leeward Low944.4
Triple Number Windward/Leeward Medium723.2
Triple Number Windward/Leeward High635.1
Predominantly Upwind650.2
Predominantly Downwind588.4
Predominantly Reaching570.4
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance642.70.9335
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1477.61035.6797.9680.6616.4576.6540.4472.9443.4
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8104
Triple Number Coastal/Long Distance Medium1.0137
Triple Number Coastal/Long Distance High1.1421
Triple Number Windward/Leeward Low0.6353
Triple Number Windward/Leeward Medium0.8297
Triple Number Windward/Leeward High0.9448
Coastal/Long Distance0.9335
Predominantly Upwind0.9228
Predominantly Downwind1.0197
For information
General Purpose Handicap (GPH)661.1
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0116
Distanseseilas Trippeltall svak vind0.8104
Distanseseilas Trippeltall mellomvind1.0137
Distanseseilas Trippeltall sterk vind1.1421
Pølsebane Trippeltall svak vind0.6353
Pølsebane Trippeltall mellomvind0.8297
Pølsebane Trippeltall sterk vind0.9448
Motvind Singeltall0.9228
Medvind Singeltall1.0197
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Coastal/Long Distance642.70.9335
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind650.20.9228
Predominantly Downwind588.41.0197
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore561.81.0680
Cape Doctor Coastal477.01.2580
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8104
Triple Number Coastal/Long Distance Medium1.0137
Triple Number Coastal/Long Distance High1.1421
Triple Number Windward/Leeward Low0.6353
Triple Number Windward/Leeward Medium0.8297
Triple Number Windward/Leeward High0.9448
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8104
Triple Number Coastal/Long Distance Medium1.0137
Triple Number Coastal/Long Distance High1.1421
Triple Number Windward/Leeward Low0.6353
Triple Number Windward/Leeward Medium0.8297
Triple Number Windward/Leeward High0.9448
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance642.70.9335
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Predominantly Upwind650.20.9228
Predominantly Downwind588.41.0197
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1477.61035.6797.9680.6616.4576.6540.4472.9443.4
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance642.70.9335
Triple Number Coastal/Long Distance Low740.40.8104
Triple Number Coastal/Long Distance Medium591.91.0137
Triple Number Coastal/Long Distance High525.31.1421
Triple Number Windward/Leeward Low944.40.6353
Triple Number Windward/Leeward Medium723.20.8297
Triple Number Windward/Leeward High635.10.9448
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1477.61035.6797.9680.6616.4576.6540.4472.9443.4
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP613.20.9784 Predom. Dn High436.71.3740 5B AP M/H535.71.1200 TriNum AP Low740.40.8104 Predom. Rc Low793.10.7565 5B AP High497.51.2061 TriNum AP Med591.91.0136 Predom. Rc L/M619.90.9679 5B SF Bay Low938.50.6393 TriNum AP High525.41.1421 Predom. Rc Med555.01.0812 5B SF Bay L/M783.60.7657 TriNum W/L Low988.70.6068 Predom. Rc M/H502.11.1949 5B SF Bay Med688.20.8719 TriNum W/L Med723.20.8297 Predom. Rc High461.61.2998 5B SF Bay M/H629.00.9539 TriNum W/L Hig635.10.9448 5B W/L Low1104.30.5433 5B SF Bay High581.31.0322 Predom. Upwind675.20.8887 5B W/L L/M819.30.7323 ChiMac Up Low805.40.7450 Predom. Reaching584.81.0259 5B W/L Med713.50.8409 ChiMac Up Med732.50.8191 Predom. Downwind608.60.9859 5B W/L M/H649.80.9233 ChiMac Up High646.30.9284 Predom. Up Low909.30.6599 5B W/L High594.21.0097 ChiMac Off Low760.00.7895 Predom. Up L/M703.00.8535 W/L 60-40 Low1118.50.5364 ChiMac Off Med676.00.8875 Predom. Up Med633.20.9475 W/L 60-40 L/M833.60.7198 ChiMac Off High569.41.0538 Predom. Up M/H595.11.0083 W/L 60-40 Med730.80.8210 ChiMac AP Low779.80.7695 Predom. Up High572.71.0477 W/L 60-40 M/H674.20.8900 ChiMac AP Med702.50.8541 Predom. Dn Low872.40.6878 W/L 60-40 High629.80.9527 ChiMac AP High607.10.9884 Predom. Dn L/M660.10.9090 5B AP Low814.00.7371 BayMac Cove Island891.30.6732 Predom. Dn Med574.21.0450 5B AP L/M657.40.9127 BayMac Shore885.60.6775 Predom. Dn M/H502.41.1943 5B AP Med584.71.0263 Harvest Moon513.61.1683      SA/DSPL Up27.08SA/DSPL Dn65.91
ORC Ref  03440004NKK Issued on 29/04/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
JesssNOR 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
Length overall8.032Maximum beam2.488Draft1.499Displacement1,453Wetted area11.83IMS L7.199LSM06.817Accomod. length8.032Sink (kg/mm) 9.02
VCGD-0.150VCGM-0.079 RM Rated (kg·m) 27.2Limit of positive stability(°) 112.2 Stability Index 105.5 BLR index 0.0000Default crew weight399 Declared crew weight 350
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P9.140IG9.560ISP10.060MDT10.080MDL10.130MDT20.060MDL20.100TL0.380MW0.120GO0.120
E3.810J2.900BAS1.300FSD0.025SFJ0.000SPL0.000WPLTPS4.810BD0.000MWT33.10MCG3.210
PY0.000MDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.150Flotation Date01/01/2015
SFFP0.177FFM0.870FF0.870LCFcl4.246SG
SAFP8.015FAM0.630FA0.630LCFsh4.422HBI0.736
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440004NKK Issued on 29/04/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
JesssNOR 427
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment7677-2004012412000.160.001.442.483.1920.9601/01/17537677-2004012412000.160.001.442.483.1920.9601/01/1753
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment394-2023041214530.070.410.771.462.222.959.29YesNo 13.8212/04/2023394-2023041214530.070.410.771.462.222.959.29YesNo 13.8212/04/2023
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment466-20250901154811.918.9810.457.307.3899%63.6801/09/2025466-20250901154811.918.9810.457.307.3899%63.6801/09/2025466-20250901154612.069.7010.886.526.8595%59.7101/09/2025466-20250901154612.069.7010.886.526.8595%59.7101/09/2025
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
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.
ORC Ref  03440004NKK Issued on 29/04/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org