Club Certificate2025
RASPANED 28
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 Angles43.4°43.4°41.3°40.1°39.2°38.7°38.2°38.1°38.8°
Beat VMG2.283.143.814.304.644.824.914.984.94
52°3.574.795.656.246.596.796.896.966.98
60°3.785.035.886.436.766.957.067.167.19
75°3.885.166.036.586.907.117.277.467.54
90°3.765.055.986.646.977.167.367.657.85
110°3.705.096.146.787.167.437.647.928.11
120°3.564.925.986.707.127.447.718.188.49
135°3.194.455.516.376.917.277.588.188.79
150°2.643.814.885.776.496.957.287.878.46
Run VMG2.283.304.235.015.726.296.737.377.90
Gybe Angles146.9°146.9°151.0°153.4°158.3°164.8°171.4°178.1°178.1°
APH ToD:604.0CDL: 8.165APH ToT: 0.9934CertNo:17648
BOAT
ClassMazurkaDesignerD.KoopmansBuilderKestelooAge date10/1972Series date10/1972Offset fileH28E.OFFData fileNED28
HULL
Length Overall10.837 mMaximum Beam3.244 mDraft1.994 mDisplacement6,404 kgDLR9.8098IMS DivisionCruiser/RacerDynamic Allowance0.520%Age Allowance0.487%
PROPELLER
InstallationIn ApertureTypeFolding 2 bladesDiameter0.400m
CREW
Maximum weight560 kg(declared)Minimum weight430 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail27.1727.55Headsail Luffed37.6837.68Headsail FlyingSymmetric85.0485.04Asymmetric
STORM SAIL AREAS (m²)
Trysail8.40Storm Jib9.30Heavy Weather Jib25.10
SAIL LIMITS
Headsails5
✱ Woven polyester sails
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.
Club Certificate2025
RASPANED 28
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 VMG1575.81145.0943.9837.4776.7747.4733.1722.7728.4
52°1007.1751.5637.2576.6545.9530.4522.4517.2516.0
60°952.0715.6612.4559.6532.9518.4509.7502.5500.7
75°928.5697.2596.6547.2521.8506.2495.5482.5477.2
90°958.6713.1602.0542.4516.2502.8489.4470.6458.5
110°972.6707.8586.7530.8503.1484.8471.1454.5443.7
120°1011.5732.1601.8537.2505.5484.0466.9440.3423.9
135°1129.7808.3652.9565.2521.2495.2474.6440.2409.6
150°1365.7944.1738.0624.0555.1518.1494.4457.4425.4
Run VMG1578.01090.2851.6717.9629.8572.4534.8488.7455.6
Selected Courses
Windward / Leeward1575.31117.6897.7777.6703.3659.9633.9605.7592.0
All purpose1198.9866.5710.0626.8580.1553.8536.9516.4504.4
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward737.80.8132
All purpose604.00.9934
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance656.30.9142
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1666.81114.8845.9703.3618.1574.4543.0496.7483.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7111
Downwind "popa"0.8597
70% up, 30% down "Ilhabela"0.7500
30% up, 70% down "Ilhabela-inverso"0.8090
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Predominantly Upwind653.50.9181
Predominantly Downwind614.10.9770
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low788.30.7612
Triple Number AP Medium600.01.0001
Triple Number AP High533.51.1247
Triple Number Windward/Leeward Low1052.60.5700
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Single Number Predominant Upwind679.90.8825
Single Number Predominant Reaching605.30.9912
Single Number Predominant Downwind642.10.9344
Predominant Upwind - Low950.00.6316
Predominant Upwind - Low/Med723.20.8297
Predominant Upwind - Medium630.40.9517
Predominant Upwind - Med/High583.71.0279
Predominant Upwind - High566.81.0586
Predominant Downwind Low952.50.6299
Predominant Downwind Low/Med699.60.8577
Predominant Downwind Medium590.01.0170
Predominant Downwind Med/High525.51.1418
Predominant Downwind High492.81.2176
Predominant Reaching Low851.70.7045
Predominant Reaching Low/Med646.20.9285
Predominant Reaching Medium562.31.0670
Predominant Reaching Med/High516.61.1614
Predominant Reaching High493.31.2164
SA/DSPL Upwind18.69SA/DSPL Downwind32.34
Scoring OptionTODTOT
5-Band Windward/Leeward Low1177.40.5096
5-Band Windward/Leeward Low/Med859.10.6984
5-Band Windward/Leeward Medium718.90.8347
5-Band Windward/Leeward Med/High639.40.9384
5-Band Windward/Leeward High608.20.9865
Windward/Leeward 60-40 Low1182.40.5074
Windward/Leeward 60-40 Low/Med869.50.6900
Windward/Leeward 60-40 Medium733.50.8180
Windward/Leeward 60-40 Med/High659.00.9105
Windward/Leeward 60-40 High631.70.9499
5-Band AP Low872.80.6874
5-Band AP Low/Med684.50.8765
5-Band AP Medium590.71.0158
5-Band AP Med/High539.91.1112
5-Band AP High517.91.1585
5-Band SF Bay Tour - Low1016.00.5905
5-Band SF Bay Tour - Low/Med822.90.7291
5-Band SF Bay Tour - Medium695.60.8625
5-Band SF Bay Tour - Med/High626.10.9583
5-Band SF Bay Tour - High598.61.0023
Chicago-Mac Upwind0.8532
Chicago-Mac All Purpose0.8787
Chicago-Mac Downwind0.8995
Bayview-Mac Cove Island0.6394
Bayview-Mac Shore0.6438
Harvest Moon Regatta527.11.1383
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance656.30.9142
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1666.81114.8845.9703.3618.1574.4543.0496.7483.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance656.30.9142
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1666.81114.8845.9703.3618.1574.4543.0496.7483.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance656.3
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1666.81114.8845.9703.3618.1574.4543.0496.7483.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)656.30.9142
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1666.81114.8845.9703.3618.1574.4543.0496.7483.8
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9142
Triple Number Coastal/Long Distance Low0.7612
Triple Number Coastal/Long Distance Medium1.0002
Triple Number Coastal/Long Distance High1.1247
Triple Number Windward/Leeward Low0.5954
Triple Number Windward/Leeward Medium0.8181
Triple Number Windward/Leeward High0.9526
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1666.81114.8845.9703.3618.1574.4543.0496.7483.8
For information
General Purpose Handicap (GPH)680.3
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance656.30.9142
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1666.81114.8845.9703.3618.1574.4543.0496.7483.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance656.30.9142
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1666.81114.8845.9703.3618.1574.4543.0496.7483.8
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance656.30.9142
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1666.81114.8845.9703.3618.1574.4543.0496.7483.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low788.2
Triple Number Coastal/Long Distance Medium599.9
Triple Number Coastal/Long Distance High533.5
Triple Number Windward/Leeward Low1007.7
Triple Number Windward/Leeward Medium733.4
Triple Number Windward/Leeward High629.9
Predominantly Upwind653.5
Predominantly Downwind614.1
Predominantly Reaching591.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance656.30.9142
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1666.81114.8845.9703.3618.1574.4543.0496.7483.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7612
Triple Number Coastal/Long Distance Medium1.0002
Triple Number Coastal/Long Distance High1.1247
Triple Number Windward/Leeward Low0.5954
Triple Number Windward/Leeward Medium0.8181
Triple Number Windward/Leeward High0.9526
Coastal/Long Distance0.9142
Predominantly Upwind0.9181
Predominantly Downwind0.9770
For information
General Purpose Handicap (GPH)680.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9934
Distanseseilas Trippeltall svak vind0.7612
Distanseseilas Trippeltall mellomvind1.0002
Distanseseilas Trippeltall sterk vind1.1247
Pølsebane Trippeltall svak vind0.5954
Pølsebane Trippeltall mellomvind0.8181
Pølsebane Trippeltall sterk vind0.9526
Motvind Singeltall0.9181
Medvind Singeltall0.9770
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Coastal/Long Distance656.30.9142
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind653.50.9181
Predominantly Downwind614.10.9770
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore596.11.0065
Cape Doctor Coastal508.01.1810
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7612
Triple Number Coastal/Long Distance Medium1.0002
Triple Number Coastal/Long Distance High1.1247
Triple Number Windward/Leeward Low0.5954
Triple Number Windward/Leeward Medium0.8181
Triple Number Windward/Leeward High0.9526
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7612
Triple Number Coastal/Long Distance Medium1.0002
Triple Number Coastal/Long Distance High1.1247
Triple Number Windward/Leeward Low0.5954
Triple Number Windward/Leeward Medium0.8181
Triple Number Windward/Leeward High0.9526
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance656.30.9142
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Predominantly Upwind653.50.9181
Predominantly Downwind614.10.9770
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1666.81114.8845.9703.3618.1574.4543.0496.7483.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance656.30.9142
Triple Number Coastal/Long Distance Low788.20.7612
Triple Number Coastal/Long Distance Medium599.91.0002
Triple Number Coastal/Long Distance High533.51.1247
Triple Number Windward/Leeward Low1007.70.5954
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1666.81114.8845.9703.3618.1574.4543.0496.7483.8
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low788.30.7612
Triple Number AP Medium600.01.0001
Triple Number AP High533.51.1247
Triple Number Windward/Leeward Low1052.60.5700
Triple Number Windward/Leeward Medium733.40.8181
Triple Number Windward/Leeward High629.90.9526
Single Number Predominant Upwind679.90.8825
Single Number Predominant Reaching605.30.9912
Single Number Predominant Downwind642.10.9344
Predominant Upwind - Low950.00.6316
Predominant Upwind - Low/Med723.20.8297
Predominant Upwind - Medium630.40.9517
Predominant Upwind - Med/High583.71.0279
Predominant Upwind - High566.81.0586
Predominant Downwind Low952.50.6299
Predominant Downwind Low/Med699.60.8577
Predominant Downwind Medium590.01.0170
Predominant Downwind Med/High525.51.1418
Predominant Downwind High492.81.2176
Predominant Reaching Low851.70.7045
Predominant Reaching Low/Med646.20.9285
Predominant Reaching Medium562.31.0670
Predominant Reaching Med/High516.61.1614
Predominant Reaching High493.31.2164
SA/DSPL Upwind18.69SA/DSPL Downwind32.34
Scoring OptionTODTOT
5-Band Windward/Leeward Low1177.40.5096
5-Band Windward/Leeward Low/Med859.10.6984
5-Band Windward/Leeward Medium718.90.8347
5-Band Windward/Leeward Med/High639.40.9384
5-Band Windward/Leeward High608.20.9865
Windward/Leeward 60-40 Low1182.40.5074
Windward/Leeward 60-40 Low/Med869.50.6900
Windward/Leeward 60-40 Medium733.50.8180
Windward/Leeward 60-40 Med/High659.00.9105
Windward/Leeward 60-40 High631.70.9499
5-Band AP Low872.80.6874
5-Band AP Low/Med684.50.8765
5-Band AP Medium590.71.0158
5-Band AP Med/High539.91.1112
5-Band AP High517.91.1585
5-Band SF Bay Tour - Low1016.00.5905
5-Band SF Bay Tour - Low/Med822.90.7291
5-Band SF Bay Tour - Medium695.60.8625
5-Band SF Bay Tour - Med/High626.10.9583
5-Band SF Bay Tour - High598.61.0023
Chicago-Mac Upwind0.8532
Chicago-Mac All Purpose0.8787
Chicago-Mac Downwind0.8995
Bayview-Mac Cove Island0.6394
Bayview-Mac Shore0.6438
Harvest Moon Regatta527.11.1383
Club Certificate2025
RASPANED 28
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMazurkaMeasurement27/04/1998HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.837Max. Beam3.244Draft1.994Displacement6,404Wetted area25.05IMS L8.937LSM08.674Acc. length10.543Sink (kg/mm) 17.33
VCGD-0.001VCGM-0.065RM Rated (kg·m) 113.8Limit of positive stability(°) N/AStability IndexN/ADefault crew weight562Declared crew weight560
PROPELLER
Propeller TypeFolding 2 blades
InstallationIn ApertureTwin screwNoHydro generatorNo
PRD0.400PBW0.100PIPA0.0078
APHAPTAPB
RIG
Forestay tensionAftInner stayFixedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1Checkstays0Spreaders2Rotating mastNo
P11.870IG13.570ISP13.620MDT10.132MDL10.188MDT20.132MDL20.188TL0.000MW0.188GO0.208
E4.040J4.290BAS1.450FSD0.035SFJ0.000SPL4.371WPLTPSBD0.125MWT172.00MCG3.800
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered115.6Flotation Date27/04/1998
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
RASPANED 28
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20250.130.761.382.403.2927.17
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20250.450.711.372.794.335.8813.02NoNo 37.68
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment202513.4213.4213.427.657.4285.04
CRUISER/RACER REQUIREMENTS*
Accommodation length10.5 mTable area0.44 m²Headroom1.73 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity90 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity60 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.