International
One Design
 Certificate
2023

Boat

MARIA X CENTO

ITA-35189

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles42.0°40.0°38.2°37.6°37.8°38.1°38.7°
Beat VMG3.814.564.945.095.165.205.18
52°5.736.627.027.177.257.307.33
60°6.006.827.207.367.467.527.58
75°6.176.947.357.617.777.888.00
90°6.066.907.357.697.988.208.46
110°5.936.987.527.938.218.448.80
120°5.766.857.457.928.378.779.36
135°5.186.367.107.608.078.579.85
150°4.355.496.467.137.598.039.04
Run VMG3.774.755.616.326.927.408.23
Gybe Angles141.5°148.4°152.5°159.2°173.6°177.2°177.2°

APH: 542.3

CDL: 9.178

GPH: 603.5

CertNo: 23/1

BOAT
ClassX-35 ODDesignerJEPPESENBuilderX-YachtsAge date12/2009Series date09/2005Offset filex35.odData fileI35189
HULL
Length Overall10.600 mMaximum Beam3.250 mDraft2.159 mDisplacement4,488 kgDLR5.9246IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.420m
CREW
Maximum weight640 kgMinimum weight480 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail41.9842.84Headsail Luffed33.0333.03Headsail FlyingSymmetric92.1992.19Asymmetric
STORM SAIL AREAS (m²)
Trysail12.22Storm Jib10.62Heavy Weather Jib28.66
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting Moment111.6 kg·mStability Index116.6
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  03190002BIIIssued on 25/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

International
One Design
 Certificate
2023

Boat

MARIA X CENTO

ITA-35189

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG945.6789.7728.5707.0697.1691.8695.1
52°628.3543.5512.8502.3496.6493.2491.1
60°600.4528.1499.9488.9482.8478.9475.2
75°583.1518.7489.9473.0463.5457.1450.0
90°593.9522.0490.0468.4451.4439.0425.6
110°606.7516.0478.6454.2438.4426.7408.9
120°625.0525.3483.3454.3430.2410.6384.7
135°695.1566.3506.7473.9446.0420.1365.6
150°828.0655.9557.3504.8474.2448.1398.2
Run VMG956.1757.4641.9570.0520.3486.7437.2
Selected Courses
Windward / Leeward950.9773.6685.2638.5608.7589.2566.2
All purpose734.2613.0557.0527.2508.1494.2474.5
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward662.40.9057
All purpose542.31.1064
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance587.91.0205
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance951.4730.4622.3561.6526.6498.0453.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7993
Downwind "popa"0.9612
70% up, 30% down "Ilhabela"0.8418
30% up, 70% down "Ilhabela-inverso"0.9061
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Predominantly Upwind584.71.0261
Predominantly Downwind548.51.0939
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low673.60.8907
Triple Number All Purpose Medium539.51.1122
Triple Number All Purpose High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Predominantly Upwind584.71.0261
Predominantly Downwind548.51.0939
Predominantly Upwind Low739.70.8111
Predominantly Upwind Medium604.70.9922
Predominantly Upwind High579.01.0363
Predominantly Downwind Low742.60.8079
Predominantly Downwind Medium545.71.0995
Predominantly Downwind High455.41.3174
Chicago-Mac Upwind1.0096
Chicago-Mac All Purpose1.0397
Chicago-Mac Downwind1.0754
Bayview-Mac Cove Island0.9794
Bayview-Mac Shore0.9878
Victoria-Maui1.1533
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance587.91.0205
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance951.4730.4622.3561.6526.6498.0453.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance587.91.0205
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance951.4730.4622.3561.6526.6498.0453.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance587.9
Triple Number Coastal/Long Distance Low673.6
Triple Number Coastal/Long Distance Medium539.5
Triple Number Coastal/Long Distance High490.2
Triple Number Windward/Leeward Low862.2
Triple Number Windward/Leeward Medium657.8
Triple Number Windward/Leeward High585.4
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance951.4730.4622.3561.6526.6498.0453.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance587.91.0205
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance951.4730.4622.3561.6526.6498.0453.2
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)587.91.0205
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance951.4730.4622.3561.6526.6498.0453.2
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8907
Triple Number Coastal/Long Distance Medium1.1122
Triple Number Coastal/Long Distance High1.2239
Triple Number Windward/Leeward Low0.6959
Triple Number Windward/Leeward Medium0.9121
Triple Number Windward/Leeward High1.0249
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance951.4730.4622.3561.6526.6498.0453.2
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance587.91.0205
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance951.4730.4622.3561.6526.6498.0453.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance587.91.0205
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance951.4730.4622.3561.6526.6498.0453.2
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance951.4730.4622.3561.6526.6498.0453.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low673.6
Triple Number Coastal/Long Distance Medium539.5
Triple Number Coastal/Long Distance High490.2
Triple Number Windward/Leeward Low862.2
Triple Number Windward/Leeward Medium657.8
Triple Number Windward/Leeward High585.4
Predominantly Upwind584.7
Predominantly Downwind548.5
Predominantly Reaching527.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance587.91.0205
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance951.4730.4622.3561.6526.6498.0453.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8907
Triple Number Coastal/Long Distance Medium1.1122
Triple Number Coastal/Long Distance High1.2239
Triple Number Windward/Leeward Low0.6959
Triple Number Windward/Leeward Medium0.9121
Triple Number Windward/Leeward High1.0249
Coastal/Long Distance1.0205
Predominantly Upwind1.0261
Predominantly Downwind1.0939
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8907
Tretall Distanseseilas Mellomvind1.1122
Tretall Distanseseilas Mye vind1.2239
Tretall Pølsebane Lite vind0.6959
Tretall Pølsebane Mellomvind0.9121
Tretall Pølsebane Mye vind1.0249
Distanseseilas ett tall (OSN 8-16kn)1.0205
Distanseseilas ett tall (APH 6-20kn)1.1064
Enkeltall Motvind1.0261
Enkeltall Medvind1.0939
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Coastal/Long Distance587.91.0205
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind584.71.0261
Predominantly Downwind548.51.0939
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore573.11.0470
Cape Doctor Coastal480.41.2490
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8907
Triple Number Coastal/Long Distance Medium1.1122
Triple Number Coastal/Long Distance High1.2239
Triple Number Windward/Leeward Low0.6959
Triple Number Windward/Leeward Medium0.9121
Triple Number Windward/Leeward High1.0249
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8907
Triple Number Coastal/Long Distance Medium1.1122
Triple Number Coastal/Long Distance High1.2239
Triple Number Windward/Leeward Low0.6959
Triple Number Windward/Leeward Medium0.9121
Triple Number Windward/Leeward High1.0249
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance587.91.0205
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Predominantly Upwind584.71.0261
Predominantly Downwind548.51.0939
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance951.4730.4622.3561.6526.6498.0453.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance587.91.0205
Triple Number Coastal/Long Distance Low673.60.8907
Triple Number Coastal/Long Distance Medium539.51.1122
Triple Number Coastal/Long Distance High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance951.4730.4622.3561.6526.6498.0453.2
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low673.60.8907
Triple Number All Purpose Medium539.51.1122
Triple Number All Purpose High490.21.2239
Triple Number Windward/Leeward Low862.20.6959
Triple Number Windward/Leeward Medium657.80.9121
Triple Number Windward/Leeward High585.41.0249
Predominantly Upwind584.71.0261
Predominantly Downwind548.51.0939
Predominantly Upwind Low739.70.8111
Predominantly Upwind Medium604.70.9922
Predominantly Upwind High579.01.0363
Predominantly Downwind Low742.60.8079
Predominantly Downwind Medium545.71.0995
Predominantly Downwind High455.41.3174
Chicago-Mac Upwind1.0096
Chicago-Mac All Purpose1.0397
Chicago-Mac Downwind1.0754
Bayview-Mac Cove Island0.9794
Bayview-Mac Shore0.9878
Harvest Moon Regatta472.21.2706
Victoria-Maui1.1533
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy573.91.0455
San Francisco Bay Medium649.50.9238
Predominantly Reaching1.1629
Predominantly Reaching Low0.9765
Predominantly Reaching Medium1.1722
Predominantly Reaching High1.3178
Windward/Leeward 60-40 Low863.30.6950
Windward/Leeward 60-40 Medium678.50.8843
Windward/Leeward 60-40 High622.50.9639
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low937.20.6402
5-Band Low / Medium793.90.7558
5-Band Medium648.30.9255
5-Band Medium / High592.81.0122
5-Band High570.11.0524
ORC Ref  03190002BIIIssued on 25/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

International
One Design
 Certificate
2023

Boat

MARIA X CENTO

ITA-35189

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassX-35 ODMeasurement04/05/2006HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA10.600Max. Beam3.250Draft2.159Displacement4,488Wetted area22.87IMS L9.434LSM09.115Acc. length10.563Sink (kg/mm) 17.61
VCGD0.054VCGM0.044RM Rated (kg·m) 111.6Limit of positive stability(°) 116.0Stability Index116.6
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.420PBW0.128PIPA0.0033
EDL2.390ST10.042ST20.178
ST30.182ST40.112ST50.255
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P14.250IG14.500ISP14.530MDT10.125MDL10.185MDT20.122MDL20.140TL1.230MW0.184GO0.204
E4.900J4.185BAS1.745FSD0.034SFJ0.000SPL4.264WPLTPSBD0.220MWT156.00MCG4.600
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date04/05/2006MeasurerComment
SFFP0.075FFM1.321FF1.323LCFcl5.959SG1.0250
SAFP10.275FAM0.980FA0.983LCFsh6.165HBI1.111
W170.0W270.0W370.0W470.0
PD1554.0PD2558.9PD3554.0PD4552.5
WD11.240PLM9000.00GSA1.0RSA1.0RM111.7
TANKS
INVENTORY
INVENTORY
BALLASTIdKindDescriptionWeightLCGVCGTCGFixedFixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG1fuel st.stl fuel6005.950.002H2O pvc Water12005.350.003gas steel LPG gas209.450.00Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCG1MiscellaneousTable205.000.002MiscellaneousSafety Equipment85.000.001Battery120 Ah gel - services474.650.002Battery55 Ah - engine195.000.001EngineYanmar 3YM20C1AnchorAnchor 1106.700.001ChainWarp85.500.001Tools137.500.001Deck Gear0104.19Total deductible416.110.00
ORC Ref  03190002BIIIssued on 25/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

International
One Design
 Certificate
2023

Boat

MARIA X CENTO

ITA-35189

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentORC0.211.081.883.194.1441.98* Copied from legacy *
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.100.631.212.293.344.4014.60YesNo 33.0301/03/2007One Design Rule
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentORC14.3614.3614.367.757.5292.19* Copied from legacy *
ORC Ref  03190002BIIIssued on 25/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org