Club Certificate2025
ObelixFIN 3551
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
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°40.0°38.0°37.7°37.5°37.5°38.0°39.8°
Beat VMG2.683.644.334.714.854.924.964.974.86
52°4.195.496.266.606.766.836.876.936.92
60°4.455.736.426.746.917.007.067.147.16
75°4.605.886.546.877.097.257.357.507.59
90°4.455.766.506.897.157.387.587.888.11
110°4.125.536.496.967.307.617.908.358.78
120°3.935.336.336.887.267.628.008.919.69
135°3.404.755.846.577.027.417.818.8711.08
150°2.773.995.096.016.657.067.428.249.63
Run VMG2.393.454.415.235.946.486.907.598.38
Gybe Angles145.1°145.1°150.3°154.0°162.1°170.0°177.7°178.1°163.8°
APH ToD:578.4CDL: 8.169APH ToT: 1.0374CertNo:
BOAT
ClassX-3/4 TONDesignerNIEL JEPPESENBuilderX YACHTSAge date01/1984Series date01/1984Offset fileCICCIXVI.OFFData fileFIN3551
HULL
Length Overall10.020 mMaximum Beam3.388 mDraft1.800 mDisplacement3,400 kgDLR7.4637IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFeathering 2 bladesDiameter0.350m
CREW
Maximum weight470 kg(declared)Minimum weight340 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail34.1134.93Headsail Luffed28.6728.67Headsail FlyingSymmetric63.5763.57Asymmetric
STORM SAIL AREAS (m²)
Trysail9.87Storm Jib6.81Heavy Weather Jib18.39
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
ObelixFIN 3551
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
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 VMG1343.2988.9831.0764.3741.6731.4726.2724.5741.4
52°858.3656.1575.4545.2532.9527.2523.7519.6520.4
60°808.7628.0560.3533.8520.6514.3510.0504.2502.8
75°783.0612.4550.4524.1507.9496.7489.9479.7474.1
90°809.5625.0553.5522.8503.6488.1475.2456.9443.9
110°874.0650.5554.6517.0493.2473.0455.5430.9409.9
120°915.6675.0568.7523.2495.6472.4449.8404.2371.5
135°1059.3757.8616.2547.6512.8485.9461.1406.0324.8
150°1300.9902.5707.0598.9541.6510.3484.9436.7373.9
Run VMG1503.31042.1816.1688.0605.8555.2521.9474.1429.3
Selected Courses
Windward / Leeward1421.31015.5823.5726.2673.7643.3624.0599.3585.4
All purpose1065.3781.9653.9593.8562.1542.5528.0504.7484.6
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward701.50.8553
All purpose578.41.0374
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance626.60.9575
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01018.2778.3661.5597.4562.5533.4482.0461.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7625
Downwind "popa"0.8930
70% up, 30% down "Ilhabela"0.7975
30% up, 70% down "Ilhabela-inverso"0.8494
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Predominantly Upwind620.40.9671
Predominantly Downwind588.21.0200
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low717.90.8358
Triple Number AP Medium575.41.0427
Triple Number AP High522.91.1476
Triple Number Windward/Leeward Low960.20.6249
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Single Number Predominant Upwind641.60.9352
Single Number Predominant Reaching574.61.0443
Single Number Predominant Downwind612.40.9797
Predominant Upwind - Low839.40.7148
Predominant Upwind - Low/Med665.00.9023
Predominant Upwind - Medium605.00.9917
Predominant Upwind - Med/High575.51.0425
Predominant Upwind - High560.61.0702
Predominant Downwind Low880.10.6818
Predominant Downwind Low/Med660.60.9082
Predominant Downwind Medium570.01.0526
Predominant Downwind Med/High512.41.1710
Predominant Downwind High472.51.2698
Predominant Reaching Low766.30.7830
Predominant Reaching Low/Med604.70.9923
Predominant Reaching Medium543.71.1036
Predominant Reaching Med/High504.81.1887
Predominant Reaching High476.21.2599
SA/DSPL Upwind27.66SA/DSPL Downwind43.02
Scoring OptionTODTOT
5-Band Windward/Leeward Low1069.50.5610
5-Band Windward/Leeward Low/Med795.40.7544
5-Band Windward/Leeward Medium685.70.8751
5-Band Windward/Leeward Med/High627.30.9565
5-Band Windward/Leeward High601.20.9981
Windward/Leeward 60-40 Low1063.20.5644
Windward/Leeward 60-40 Low/Med799.80.7502
Windward/Leeward 60-40 Medium698.50.8590
Windward/Leeward 60-40 Med/High647.40.9267
Windward/Leeward 60-40 High626.50.9577
5-Band AP Low791.70.7579
5-Band AP Low/Med638.00.9404
5-Band AP Medium568.91.0548
5-Band AP Med/High529.31.1335
5-Band AP High505.21.1876
5-Band SF Bay Tour - Low920.30.6519
5-Band SF Bay Tour - Low/Med760.60.7888
5-Band SF Bay Tour - Medium664.60.9027
5-Band SF Bay Tour - Med/High614.30.9767
5-Band SF Bay Tour - High588.61.0193
Chicago-Mac Upwind0.9121
Chicago-Mac All Purpose0.9321
Chicago-Mac Downwind0.9459
Bayview-Mac Cove Island0.6985
Bayview-Mac Shore0.7048
Harvest Moon Regatta508.31.1803
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance626.60.9575
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01018.2778.3661.5597.4562.5533.4482.0461.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance626.60.9575
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01018.2778.3661.5597.4562.5533.4482.0461.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance626.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01018.2778.3661.5597.4562.5533.4482.0461.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating626.60.9575
FinRating, kevyt tuuli1051.20.9513
FinRating, kova tuuli507.10.9859
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9575
Triple Number Coastal/Long Distance Low0.8358
Triple Number Coastal/Long Distance Medium1.0428
Triple Number Coastal/Long Distance High1.1476
Triple Number Windward/Leeward Low0.6525
Triple Number Windward/Leeward Medium0.8620
Triple Number Windward/Leeward High0.9684
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01018.2778.3661.5597.4562.5533.4482.0461.8
For information
General Purpose Handicap (GPH)643.5
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance626.60.9575
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01018.2778.3661.5597.4562.5533.4482.0461.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance626.60.9575
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01018.2778.3661.5597.4562.5533.4482.0461.8
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance626.60.9575
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01018.2778.3661.5597.4562.5533.4482.0461.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low717.9
Triple Number Coastal/Long Distance Medium575.4
Triple Number Coastal/Long Distance High522.8
Triple Number Windward/Leeward Low919.5
Triple Number Windward/Leeward Medium696.1
Triple Number Windward/Leeward High619.6
Predominantly Upwind620.4
Predominantly Downwind588.2
Predominantly Reaching565.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance626.60.9575
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01018.2778.3661.5597.4562.5533.4482.0461.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8358
Triple Number Coastal/Long Distance Medium1.0428
Triple Number Coastal/Long Distance High1.1476
Triple Number Windward/Leeward Low0.6525
Triple Number Windward/Leeward Medium0.8620
Triple Number Windward/Leeward High0.9684
Coastal/Long Distance0.9575
Predominantly Upwind0.9671
Predominantly Downwind1.0200
For information
General Purpose Handicap (GPH)643.5
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0374
Distanseseilas Trippeltall svak vind0.8358
Distanseseilas Trippeltall mellomvind1.0428
Distanseseilas Trippeltall sterk vind1.1476
Pølsebane Trippeltall svak vind0.6525
Pølsebane Trippeltall mellomvind0.8620
Pølsebane Trippeltall sterk vind0.9684
Motvind Singeltall0.9671
Medvind Singeltall1.0200
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Coastal/Long Distance626.60.9575
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind620.40.9671
Predominantly Downwind588.21.0200
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore589.61.0177
Cape Doctor Coastal490.61.2229
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8358
Triple Number Coastal/Long Distance Medium1.0428
Triple Number Coastal/Long Distance High1.1476
Triple Number Windward/Leeward Low0.6525
Triple Number Windward/Leeward Medium0.8620
Triple Number Windward/Leeward High0.9684
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8358
Triple Number Coastal/Long Distance Medium1.0428
Triple Number Coastal/Long Distance High1.1476
Triple Number Windward/Leeward Low0.6525
Triple Number Windward/Leeward Medium0.8620
Triple Number Windward/Leeward High0.9684
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance626.60.9575
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Predominantly Upwind620.40.9671
Predominantly Downwind588.21.0200
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01018.2778.3661.5597.4562.5533.4482.0461.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance626.60.9575
Triple Number Coastal/Long Distance Low717.90.8358
Triple Number Coastal/Long Distance Medium575.41.0428
Triple Number Coastal/Long Distance High522.81.1476
Triple Number Windward/Leeward Low919.50.6525
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.01018.2778.3661.5597.4562.5533.4482.0461.8
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low717.90.8358
Triple Number AP Medium575.41.0427
Triple Number AP High522.91.1476
Triple Number Windward/Leeward Low960.20.6249
Triple Number Windward/Leeward Medium696.10.8620
Triple Number Windward/Leeward High619.60.9684
Single Number Predominant Upwind641.60.9352
Single Number Predominant Reaching574.61.0443
Single Number Predominant Downwind612.40.9797
Predominant Upwind - Low839.40.7148
Predominant Upwind - Low/Med665.00.9023
Predominant Upwind - Medium605.00.9917
Predominant Upwind - Med/High575.51.0425
Predominant Upwind - High560.61.0702
Predominant Downwind Low880.10.6818
Predominant Downwind Low/Med660.60.9082
Predominant Downwind Medium570.01.0526
Predominant Downwind Med/High512.41.1710
Predominant Downwind High472.51.2698
Predominant Reaching Low766.30.7830
Predominant Reaching Low/Med604.70.9923
Predominant Reaching Medium543.71.1036
Predominant Reaching Med/High504.81.1887
Predominant Reaching High476.21.2599
SA/DSPL Upwind27.66SA/DSPL Downwind43.02
Scoring OptionTODTOT
5-Band Windward/Leeward Low1069.50.5610
5-Band Windward/Leeward Low/Med795.40.7544
5-Band Windward/Leeward Medium685.70.8751
5-Band Windward/Leeward Med/High627.30.9565
5-Band Windward/Leeward High601.20.9981
Windward/Leeward 60-40 Low1063.20.5644
Windward/Leeward 60-40 Low/Med799.80.7502
Windward/Leeward 60-40 Medium698.50.8590
Windward/Leeward 60-40 Med/High647.40.9267
Windward/Leeward 60-40 High626.50.9577
5-Band AP Low791.70.7579
5-Band AP Low/Med638.00.9404
5-Band AP Medium568.91.0548
5-Band AP Med/High529.31.1335
5-Band AP High505.21.1876
5-Band SF Bay Tour - Low920.30.6519
5-Band SF Bay Tour - Low/Med760.60.7888
5-Band SF Bay Tour - Medium664.60.9027
5-Band SF Bay Tour - Med/High614.30.9767
5-Band SF Bay Tour - High588.61.0193
Chicago-Mac Upwind0.9121
Chicago-Mac All Purpose0.9321
Chicago-Mac Downwind0.9459
Bayview-Mac Cove Island0.6985
Bayview-Mac Shore0.7048
Harvest Moon Regatta508.31.1803
Club Certificate2025
ObelixFIN 3551
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassX-3/4 TONMeasurementHINPlan reviewHull constructionLightCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.020Max. Beam3.388Draft1.800Displacement3,400Wetted area18.88IMS L8.229LSM07.694Acc. length10.020Sink (kg/mm) 14.29
VCGD0.022VCGM0.036RM Rated (kg·m) 81.4Limit of positive stability(°) N/AStability IndexN/ADefault crew weight474Declared crew weight470
PROPELLER
Propeller TypeFeathering 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.350PBWPIPA0.0040
PSD0.025PHD0.063PHL0.105
PSA18.0°ESL0.860
ST10.023ST20.077ST30.077
ST40.047ST50.230
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays2CheckstaysSpreaders2Rotating mastNo
P12.450IG11.670ISP11.670MDT10.088MDL10.133MDT20.060MDL20.070TL3.150MW0.140GO0.140
E4.530J3.370BAS1.450FSD0.027SFJSPL3.490WPLTPS0.000BD0.160MWT108.00MCG3.820
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date14/03/2020
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
ObelixFIN 3551
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.211.031.772.963.8434.11
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.040.581.142.433.765.1211.54NoNo 28.67
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment111.7011.7011.706.606.2063.57