Club Certificate2025
Mata'iNOR 8283
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 Angles42.3°42.3°39.6°38.1°37.7°37.7°37.8°38.7°41.6°
Beat VMG2.563.454.074.384.484.534.554.524.34
52°4.015.195.856.126.246.306.356.406.35
60°4.255.415.996.266.406.486.556.636.63
75°4.385.546.106.406.616.776.887.067.14
90°4.265.456.096.446.726.977.187.547.80
110°4.005.296.116.556.927.277.628.228.90
120°3.815.105.976.476.907.337.839.1610.44
135°3.324.555.516.206.637.087.589.3212.39
150°2.643.804.845.686.276.687.108.1810.93
Run VMG2.293.294.194.965.636.136.527.309.47
Gybe Angles146.0°146.0°151.6°157.0°164.2°171.8°177.2°172.7°144.1°
APH ToD:616.3CDL: 6.832APH ToT: 0.9736CertNo:5361
BOAT
ClassBANNER 28 LRDesignerIbHaugeNilsenBuilderIN Fiberbåde ASAge date01/1981Series date01/1979Offset fileCLBAN28R.OFFData file5361
HULL
Length Overall8.500 mMaximum Beam2.968 mDraft1.394 mDisplacement1,502 kgDLR6.1541IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight270 kg(declared)Minimum weight140 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail21.7622.43Headsail Luffed18.4418.44Headsail FlyingSymmetric40.6840.68Asymmetric
STORM SAIL AREAS (m²)
Trysail6.05Storm Jib3.53Heavy Weather Jib9.53
SAIL LIMITS
Headsails5Spinnakers4
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.
Club Certificate2025
Mata'iNOR 8283
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 VMG1406.51042.4883.9822.6803.1795.3791.4795.7829.5
52°896.9693.3615.9588.1577.2571.1566.7562.8566.8
60°846.8665.0600.7575.1562.3555.2549.5542.8543.1
75°821.5649.4590.1562.5544.6532.1523.3509.9504.2
90°844.8660.0591.4558.6535.5516.8501.2477.7461.6
110°900.3681.0589.7549.4520.0494.9472.3438.0404.3
120°945.7706.1602.7556.1522.0491.4459.6392.8344.7
135°1084.3790.6653.5581.1542.8508.4475.2386.2290.7
150°1362.0946.9744.2633.9574.2539.1507.0440.3329.3
Run VMG1575.21093.4858.3726.2639.0587.5552.3493.0380.2
Selected Courses
Windward / Leeward1488.41067.9871.1774.4721.1691.4671.8644.4604.9
All purpose1110.2822.5694.6634.1600.9579.4561.9531.0499.3
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward749.40.8007
All purpose616.30.9736
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance667.10.8994
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1585.71070.4823.8706.0639.1600.9566.6502.3468.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7077
Downwind "popa"0.8485
70% up, 30% down "Ilhabela"0.7448
30% up, 70% down "Ilhabela-inverso"0.8008
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Predominantly Upwind665.10.9021
Predominantly Downwind623.40.9625
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low758.50.7910
Triple Number AP Medium614.40.9765
Triple Number AP High554.71.0817
Triple Number Windward/Leeward Low1012.00.5929
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Single Number Predominant Upwind685.80.8749
Single Number Predominant Reaching608.10.9867
Single Number Predominant Downwind645.40.9297
Predominant Upwind - Low883.50.6791
Predominant Upwind - Low/Med709.40.8457
Predominant Upwind - Medium650.00.9230
Predominant Upwind - Med/High618.70.9697
Predominant Upwind - High601.00.9984
Predominant Downwind Low922.30.6505
Predominant Downwind Low/Med699.70.8575
Predominant Downwind Medium605.30.9913
Predominant Downwind Med/High539.41.1124
Predominant Downwind High483.71.2404
Predominant Reaching Low804.50.7458
Predominant Reaching Low/Med643.10.9330
Predominant Reaching Medium579.41.0356
Predominant Reaching Med/High533.21.1253
Predominant Reaching High494.11.2142
SA/DSPL Upwind30.61SA/DSPL Downwind47.55
Scoring OptionTODTOT
5-Band Windward/Leeward Low1124.40.5336
5-Band Windward/Leeward Low/Med843.80.7111
5-Band Windward/Leeward Medium733.40.8181
5-Band Windward/Leeward Med/High674.60.8894
5-Band Windward/Leeward High642.30.9342
Windward/Leeward 60-40 Low1118.30.5365
Windward/Leeward 60-40 Low/Med849.80.7061
Windward/Leeward 60-40 Medium748.80.8013
Windward/Leeward 60-40 Med/High698.50.8590
Windward/Leeward 60-40 High674.00.8902
5-Band AP Low831.80.7213
5-Band AP Low/Med678.30.8846
5-Band AP Medium607.40.9879
5-Band AP Med/High562.91.0659
5-Band AP High530.81.1303
5-Band SF Bay Tour - Low968.90.6192
5-Band SF Bay Tour - Low/Med807.80.7428
5-Band SF Bay Tour - Medium711.30.8435
5-Band SF Bay Tour - Med/High658.90.9107
5-Band SF Bay Tour - High626.40.9579
Chicago-Mac Upwind0.8539
Chicago-Mac All Purpose0.8776
Chicago-Mac Downwind0.8960
Bayview-Mac Cove Island0.6628
Bayview-Mac Shore0.6688
Harvest Moon Regatta534.81.1219
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance667.10.8994
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1585.71070.4823.8706.0639.1600.9566.6502.3468.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance667.10.8994
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1585.71070.4823.8706.0639.1600.9566.6502.3468.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance667.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1585.71070.4823.8706.0639.1600.9566.6502.3468.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating667.10.8994
FinRating, kevyt tuuli1104.40.9054
FinRating, kova tuuli529.20.9449
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8994
Triple Number Coastal/Long Distance Low0.7910
Triple Number Coastal/Long Distance Medium0.9766
Triple Number Coastal/Long Distance High1.0817
Triple Number Windward/Leeward Low0.6189
Triple Number Windward/Leeward Medium0.8065
Triple Number Windward/Leeward High0.9003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1585.71070.4823.8706.0639.1600.9566.6502.3468.2
For information
General Purpose Handicap (GPH)684.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance667.10.8994
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1585.71070.4823.8706.0639.1600.9566.6502.3468.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance667.10.8994
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1585.71070.4823.8706.0639.1600.9566.6502.3468.2
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance667.10.8994
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1585.71070.4823.8706.0639.1600.9566.6502.3468.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low758.5
Triple Number Coastal/Long Distance Medium614.4
Triple Number Coastal/Long Distance High554.7
Triple Number Windward/Leeward Low969.5
Triple Number Windward/Leeward Medium744.0
Triple Number Windward/Leeward High666.4
Predominantly Upwind665.1
Predominantly Downwind623.4
Predominantly Reaching600.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance667.10.8994
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1585.71070.4823.8706.0639.1600.9566.6502.3468.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7910
Triple Number Coastal/Long Distance Medium0.9766
Triple Number Coastal/Long Distance High1.0817
Triple Number Windward/Leeward Low0.6189
Triple Number Windward/Leeward Medium0.8065
Triple Number Windward/Leeward High0.9003
Coastal/Long Distance0.8994
Predominantly Upwind0.9021
Predominantly Downwind0.9625
For information
General Purpose Handicap (GPH)684.2
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9736
Distanseseilas Trippeltall svak vind0.7910
Distanseseilas Trippeltall mellomvind0.9766
Distanseseilas Trippeltall sterk vind1.0817
Pølsebane Trippeltall svak vind0.6189
Pølsebane Trippeltall mellomvind0.8065
Pølsebane Trippeltall sterk vind0.9003
Motvind Singeltall0.9021
Medvind Singeltall0.9625
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Coastal/Long Distance667.10.8994
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind665.10.9021
Predominantly Downwind623.40.9625
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore616.70.9729
Cape Doctor Coastal508.81.1793
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7910
Triple Number Coastal/Long Distance Medium0.9766
Triple Number Coastal/Long Distance High1.0817
Triple Number Windward/Leeward Low0.6189
Triple Number Windward/Leeward Medium0.8065
Triple Number Windward/Leeward High0.9003
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7910
Triple Number Coastal/Long Distance Medium0.9766
Triple Number Coastal/Long Distance High1.0817
Triple Number Windward/Leeward Low0.6189
Triple Number Windward/Leeward Medium0.8065
Triple Number Windward/Leeward High0.9003
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance667.10.8994
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Predominantly Upwind665.10.9021
Predominantly Downwind623.40.9625
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1585.71070.4823.8706.0639.1600.9566.6502.3468.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance667.10.8994
Triple Number Coastal/Long Distance Low758.50.7910
Triple Number Coastal/Long Distance Medium614.40.9766
Triple Number Coastal/Long Distance High554.71.0817
Triple Number Windward/Leeward Low969.50.6189
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1585.71070.4823.8706.0639.1600.9566.6502.3468.2
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low758.50.7910
Triple Number AP Medium614.40.9765
Triple Number AP High554.71.0817
Triple Number Windward/Leeward Low1012.00.5929
Triple Number Windward/Leeward Medium744.00.8065
Triple Number Windward/Leeward High666.40.9003
Single Number Predominant Upwind685.80.8749
Single Number Predominant Reaching608.10.9867
Single Number Predominant Downwind645.40.9297
Predominant Upwind - Low883.50.6791
Predominant Upwind - Low/Med709.40.8457
Predominant Upwind - Medium650.00.9230
Predominant Upwind - Med/High618.70.9697
Predominant Upwind - High601.00.9984
Predominant Downwind Low922.30.6505
Predominant Downwind Low/Med699.70.8575
Predominant Downwind Medium605.30.9913
Predominant Downwind Med/High539.41.1124
Predominant Downwind High483.71.2404
Predominant Reaching Low804.50.7458
Predominant Reaching Low/Med643.10.9330
Predominant Reaching Medium579.41.0356
Predominant Reaching Med/High533.21.1253
Predominant Reaching High494.11.2142
SA/DSPL Upwind30.61SA/DSPL Downwind47.55
Scoring OptionTODTOT
5-Band Windward/Leeward Low1124.40.5336
5-Band Windward/Leeward Low/Med843.80.7111
5-Band Windward/Leeward Medium733.40.8181
5-Band Windward/Leeward Med/High674.60.8894
5-Band Windward/Leeward High642.30.9342
Windward/Leeward 60-40 Low1118.30.5365
Windward/Leeward 60-40 Low/Med849.80.7061
Windward/Leeward 60-40 Medium748.80.8013
Windward/Leeward 60-40 Med/High698.50.8590
Windward/Leeward 60-40 High674.00.8902
5-Band AP Low831.80.7213
5-Band AP Low/Med678.30.8846
5-Band AP Medium607.40.9879
5-Band AP Med/High562.91.0659
5-Band AP High530.81.1303
5-Band SF Bay Tour - Low968.90.6192
5-Band SF Bay Tour - Low/Med807.80.7428
5-Band SF Bay Tour - Medium711.30.8435
5-Band SF Bay Tour - Med/High658.90.9107
5-Band SF Bay Tour - High626.40.9579
Chicago-Mac Upwind0.8539
Chicago-Mac All Purpose0.8776
Chicago-Mac Downwind0.8960
Bayview-Mac Cove Island0.6628
Bayview-Mac Shore0.6688
Harvest Moon Regatta534.81.1219
Club Certificate2025
Mata'iNOR 8283
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassBANNER 28 LRMeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.500Max. Beam2.968Draft1.394Displacement1,502Wetted area11.31IMS L6.748LSM06.249Acc. length8.500Sink (kg/mm) 9.00
VCGD-0.050VCGM-0.024RM Rated (kg·m) 33.3Limit of positive stability(°) N/AStability IndexN/ADefault crew weight352Declared crew weight270
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1CheckstaysSpreaders2Rotating mastNo
P9.600IG8.400ISP8.400MDT10.070MDL10.100MDT20.050MDL20.070TL1.420MW0.000GO0.000
E3.600J2.950BAS1.080FSD0.000SFJ0.000SPL3.030WPLTPS0.000BD0.000MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.050Flotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
Mata'iNOR 8283
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment417-2013080613490.130.811.532.533.1521.7606/08/2013
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment5361-2004012412010.000.000.000.000.004.078.90NoNo 18.4401/01/1753312-2011020915320.000.000.000.000.004.078.85NoNo 18.3309/02/2011
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment5361-2004012412028.958.958.950.000.0040.6801/01/1753
CRUISER/RACER REQUIREMENTS*
Accommodation length8.5 mTable area0.33 m²Headroom1.40 mMinimum number of berths3Personal gear stowage0.12 m³Fresh water capacity38 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.