Club Certificate2025
One DesignNED 8825
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 Angles45.1°45.1°43.6°43.1°42.9°43.9°44.9°49.1°48.0°
Beat VMG1.892.603.143.473.673.753.723.516.48
52°3.014.054.805.255.515.645.675.599.68
60°3.274.345.055.455.715.895.986.005.97
75°3.424.525.225.635.946.226.456.666.73
90°3.544.715.485.956.316.516.687.277.64
110°3.564.735.505.996.466.967.488.329.43
120°3.384.565.395.896.346.847.489.6311.31
135°2.944.064.955.626.066.507.028.9012.81
150°2.403.464.415.185.726.146.567.6910.70
Run VMG2.073.003.844.585.225.686.066.869.26
Gybe Angles148.9°148.9°154.1°162.7°169.6°178.0°178.4°176.2°140.0°
APH ToD:703.5CDL: 5.154APH ToT: 0.8529CertNo:
BOAT
ClassTirionDesignerJ. de RidderBuilderKD PolyesterbouwAge date01/2008Series date01/1994Offset filejr550.offData fileNED8825
HULL
Length Overall6.250 mMaximum Beam2.360 mDraft0.878 mDisplacement672 kgDLR4.7208IMS DivisionSportboatDynamic Allowance0.200%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight272 kg(default)Minimum weight142 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail14.8615.59Headsail Luffed5.745.74Headsail FlyingSymmetric23.6323.63Asymmetric
STORM SAIL AREAS (m²)
Trysail4.00Storm Jib1.93Heavy Weather Jib5.19
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
One DesignNED 8825
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 VMG1907.21385.31146.91036.9980.2960.5966.91025.4555.3
52°1197.8887.8750.2685.8653.9638.8635.4643.9371.7
60°1101.1829.3713.4660.0630.4610.7601.8599.5602.9
75°1051.4796.2689.3639.8606.3578.5558.3540.6534.7
90°1016.7764.4656.6605.5570.4552.6539.1495.0470.9
110°1011.4761.2654.2601.0557.3517.2481.2432.7381.8
120°1063.8789.1668.4611.6567.6526.5481.3373.8318.4
135°1224.5887.4727.9641.0594.3553.5512.9404.4281.0
150°1501.11040.2815.6695.3628.9586.3548.6468.3336.5
Run VMG1737.61201.1937.3785.9690.3634.1594.2524.7388.6
Selected Courses
Windward / Leeward1821.01293.21042.1911.4835.2797.3780.5775.1471.9
All purpose1356.5986.3815.4729.8679.5649.1629.2602.2430.4
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward878.00.6834
All purpose703.50.8529
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance766.60.7827
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1921.41284.0976.4821.1728.7675.4632.5544.2452.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.5598
Downwind "popa"0.7825
70% up, 30% down "Ilhabela"0.6121
30% up, 70% down "Ilhabela-inverso"0.6991
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Predominantly Upwind779.40.7698
Predominantly Downwind694.60.8638
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low900.90.6660
Triple Number AP Medium700.10.8571
Triple Number AP High624.10.9614
Triple Number Windward/Leeward Low1220.10.4918
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Single Number Predominant Upwind804.50.7458
Single Number Predominant Reaching682.10.8796
Single Number Predominant Downwind719.10.8344
Predominant Upwind - Low1106.60.5422
Predominant Upwind - Low/Med851.60.7045
Predominant Upwind - Medium754.60.7952
Predominant Upwind - Med/High714.00.8404
Predominant Upwind - High661.30.9073
Predominant Downwind Low1062.00.5650
Predominant Downwind Low/Med788.40.7610
Predominant Downwind Medium670.40.8950
Predominant Downwind Med/High592.81.0121
Predominant Downwind High515.81.1632
Predominant Reaching Low950.70.6311
Predominant Reaching Low/Med732.60.8190
Predominant Reaching Medium643.50.9324
Predominant Reaching Med/High587.11.0220
Predominant Reaching High524.91.1432
SA/DSPL Upwind26.88SA/DSPL Downwind50.22
Scoring OptionTODTOT
5-Band Windward/Leeward Low1362.70.4403
5-Band Windward/Leeward Low/Med1002.50.5985
5-Band Windward/Leeward Medium854.30.7023
5-Band Windward/Leeward Med/High787.00.7624
5-Band Windward/Leeward High723.60.8292
Windward/Leeward 60-40 Low1381.40.4343
Windward/Leeward 60-40 Low/Med1025.70.5850
Windward/Leeward 60-40 Medium883.20.6793
Windward/Leeward 60-40 Med/High825.00.7273
Windward/Leeward 60-40 High765.60.7837
5-Band AP Low981.50.6113
5-Band AP Low/Med790.30.7592
5-Band AP Medium689.90.8697
5-Band AP Med/High632.30.9490
5-Band AP High577.21.0396
5-Band SF Bay Tour - Low1179.10.5088
5-Band SF Bay Tour - Low/Med965.20.6217
5-Band SF Bay Tour - Medium831.60.7215
5-Band SF Bay Tour - Med/High769.50.7797
5-Band SF Bay Tour - High704.30.8520
Chicago-Mac Upwind0.7205
Chicago-Mac All Purpose0.7628
Chicago-Mac Downwind0.8013
Bayview-Mac Cove Island0.5544
Bayview-Mac Shore0.5584
Harvest Moon Regatta583.11.0289
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance766.60.7827
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1921.41284.0976.4821.1728.7675.4632.5544.2452.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance766.60.7827
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1921.41284.0976.4821.1728.7675.4632.5544.2452.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance766.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1921.41284.0976.4821.1728.7675.4632.5544.2452.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)766.60.7827
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1921.41284.0976.4821.1728.7675.4632.5544.2452.5
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7827
Triple Number Coastal/Long Distance Low0.6660
Triple Number Coastal/Long Distance Medium0.8572
Triple Number Coastal/Long Distance High0.9614
Triple Number Windward/Leeward Low0.5138
Triple Number Windward/Leeward Medium0.6910
Triple Number Windward/Leeward High0.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1921.41284.0976.4821.1728.7675.4632.5544.2452.5
For information
General Purpose Handicap (GPH)789.0
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance766.60.7827
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1921.41284.0976.4821.1728.7675.4632.5544.2452.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance766.60.7827
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1921.41284.0976.4821.1728.7675.4632.5544.2452.5
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance766.60.7827
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1921.41284.0976.4821.1728.7675.4632.5544.2452.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low900.9
Triple Number Coastal/Long Distance Medium700.0
Triple Number Coastal/Long Distance High624.1
Triple Number Windward/Leeward Low1167.8
Triple Number Windward/Leeward Medium868.3
Triple Number Windward/Leeward High782.7
Predominantly Upwind779.4
Predominantly Downwind694.6
Predominantly Reaching669.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance766.60.7827
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1921.41284.0976.4821.1728.7675.4632.5544.2452.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6660
Triple Number Coastal/Long Distance Medium0.8572
Triple Number Coastal/Long Distance High0.9614
Triple Number Windward/Leeward Low0.5138
Triple Number Windward/Leeward Medium0.6910
Triple Number Windward/Leeward High0.7666
Coastal/Long Distance0.7827
Predominantly Upwind0.7698
Predominantly Downwind0.8638
For information
General Purpose Handicap (GPH)789.0
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8529
Distanseseilas Trippeltall svak vind0.6660
Distanseseilas Trippeltall mellomvind0.8572
Distanseseilas Trippeltall sterk vind0.9614
Pølsebane Trippeltall svak vind0.5138
Pølsebane Trippeltall mellomvind0.6910
Pølsebane Trippeltall sterk vind0.7666
Motvind Singeltall0.7698
Medvind Singeltall0.8638
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Coastal/Long Distance766.60.7827
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind779.40.7698
Predominantly Downwind694.60.8638
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore562.91.0659
Cape Doctor Coastal482.01.2449
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6660
Triple Number Coastal/Long Distance Medium0.8572
Triple Number Coastal/Long Distance High0.9614
Triple Number Windward/Leeward Low0.5138
Triple Number Windward/Leeward Medium0.6910
Triple Number Windward/Leeward High0.7666
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6660
Triple Number Coastal/Long Distance Medium0.8572
Triple Number Coastal/Long Distance High0.9614
Triple Number Windward/Leeward Low0.5138
Triple Number Windward/Leeward Medium0.6910
Triple Number Windward/Leeward High0.7666
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance766.60.7827
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Predominantly Upwind779.40.7698
Predominantly Downwind694.60.8638
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1921.41284.0976.4821.1728.7675.4632.5544.2452.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance766.60.7827
Triple Number Coastal/Long Distance Low900.90.6660
Triple Number Coastal/Long Distance Medium700.00.8572
Triple Number Coastal/Long Distance High624.10.9614
Triple Number Windward/Leeward Low1167.80.5138
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1921.41284.0976.4821.1728.7675.4632.5544.2452.5
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low900.90.6660
Triple Number AP Medium700.10.8571
Triple Number AP High624.10.9614
Triple Number Windward/Leeward Low1220.10.4918
Triple Number Windward/Leeward Medium868.30.6910
Triple Number Windward/Leeward High782.70.7666
Single Number Predominant Upwind804.50.7458
Single Number Predominant Reaching682.10.8796
Single Number Predominant Downwind719.10.8344
Predominant Upwind - Low1106.60.5422
Predominant Upwind - Low/Med851.60.7045
Predominant Upwind - Medium754.60.7952
Predominant Upwind - Med/High714.00.8404
Predominant Upwind - High661.30.9073
Predominant Downwind Low1062.00.5650
Predominant Downwind Low/Med788.40.7610
Predominant Downwind Medium670.40.8950
Predominant Downwind Med/High592.81.0121
Predominant Downwind High515.81.1632
Predominant Reaching Low950.70.6311
Predominant Reaching Low/Med732.60.8190
Predominant Reaching Medium643.50.9324
Predominant Reaching Med/High587.11.0220
Predominant Reaching High524.91.1432
SA/DSPL Upwind26.88SA/DSPL Downwind50.22
Scoring OptionTODTOT
5-Band Windward/Leeward Low1362.70.4403
5-Band Windward/Leeward Low/Med1002.50.5985
5-Band Windward/Leeward Medium854.30.7023
5-Band Windward/Leeward Med/High787.00.7624
5-Band Windward/Leeward High723.60.8292
Windward/Leeward 60-40 Low1381.40.4343
Windward/Leeward 60-40 Low/Med1025.70.5850
Windward/Leeward 60-40 Medium883.20.6793
Windward/Leeward 60-40 Med/High825.00.7273
Windward/Leeward 60-40 High765.60.7837
5-Band AP Low981.50.6113
5-Band AP Low/Med790.30.7592
5-Band AP Medium689.90.8697
5-Band AP Med/High632.30.9490
5-Band AP High577.21.0396
5-Band SF Bay Tour - Low1179.10.5088
5-Band SF Bay Tour - Low/Med965.20.6217
5-Band SF Bay Tour - Medium831.60.7215
5-Band SF Bay Tour - Med/High769.50.7797
5-Band SF Bay Tour - High704.30.8520
Chicago-Mac Upwind0.7205
Chicago-Mac All Purpose0.7628
Chicago-Mac Downwind0.8013
Bayview-Mac Cove Island0.5544
Bayview-Mac Shore0.5584
Harvest Moon Regatta583.11.0289
Club Certificate2025
One DesignNED 8825
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassTirionMeasurement01/01/2017HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA6.250Max. Beam2.360Draft0.878Displacement672Wetted area7.99IMS L5.665LSM05.221Acc. length6.250Sink (kg/mm) 6.77
VCGD0.095VCGM0.117RM Rated (kg·m) 17.3Limit of positive stability(°) N/AStability IndexN/ADefault crew weight272Declared crew weightN/A
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P7.250IG6.200ISP6.450MDT10.064MDL10.090MDT2MDL2TLTaperMWGO
E3.150J1.755BAS1.000FSDNo FoilSFJ0.110SPL2.580WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/01/2017CommentBB motor aan spiegel bij meting
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
One DesignNED 8825
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.150.861.422.272.8214.86ORC0.130.801.372.202.7514.47* Copied from legacy *
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment11.75NoNo 5.74
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment17.007.007.004.054.0523.63
CRUISER/RACER REQUIREMENTS*
Accommodation length6.2 mTable area0.22 m²Headroom1.40 mMinimum number of berths2Personal gear stowage0.08 m³Fresh water capacity2 lMinimum number of seats in cockpit2Food stowage0.12 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.