International
Certificate
2023

Boat

RINGLE X

USA 61551

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles46.2°42.0°40.8°40.5°40.2°40.2°40.6°
Beat VMG3.654.354.875.155.285.345.36
52°5.766.707.197.547.697.787.84
60°6.237.137.537.797.978.058.14
75°6.687.547.938.148.268.418.59
90°6.777.658.128.428.638.819.07
110°6.377.458.088.478.739.049.62
120°6.157.388.078.538.959.319.83
135°5.466.887.788.318.789.2610.31
150°4.625.846.957.748.158.479.14
Run VMG4.005.066.026.707.067.458.29
Gybe Angles143.5°147.4°147.8°150.3°150.5°171.8°175.7°

APH: 517.9

CDL: 10.445

GPH: 578.2

CertNo: US6155

BOAT
ClassX 4.3 MkIIDesignerJEPESSENBuilderX YACHTSAge date01/2022Series date07/2021Offset fileX4^3-MKII.offData fileUSA61551
HULL
Length Overall12.497 mMaximum Beam3.988 mDraft2.195 mDisplacement9,992 kgDLR6.2810IMS DivisionCruiser/RacerDynamic Allowance0.230%Age Allowance0.065%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.450m
CREW
Maximum weight820 kgMinimum weight615 kg * when appliedNon Manual PowerRigCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail53.9354.63Headsail Luffed42.2242.22Headsail Flying96.1196.11SymmetricAsymmetric178.05178.05 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail17.12Storm Jib16.01Heavy Weather Jib43.22
SAIL LIMITS
Headsails6  Spinnakers5
STABILITY
Righting Moment219.2 kg·mStability Index120.2
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  04560002MTUIssued on 26/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

RINGLE X

USA 61551

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG986.3826.9738.5699.1682.2673.9671.3
52°625.4537.6500.6477.8468.1462.8458.9
60°578.1505.0478.3462.1452.0447.0442.5
75°538.8477.7453.9442.3435.6428.0419.1
90°532.0470.5443.6427.8417.0408.8397.0
110°564.7483.5445.4425.0412.4398.4374.3
120°585.6487.8446.1421.9402.1386.8366.2
135°658.9523.4462.7433.1410.0388.7349.1
150°778.7616.4518.2465.4441.7424.9393.8
Run VMG899.2711.8598.3537.2509.8483.1434.5
Selected Courses
Windward / Leeward942.8769.3668.4618.2596.0578.5552.9
All purpose711.8593.4531.6500.3484.0471.3453.2
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward647.90.9261
All purpose517.91.1585
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance566.31.0594
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance938.4719.5600.6535.5502.1474.9431.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7957
Downwind "popa"1.0062
70% up, 30% down "Ilhabela"0.8490
30% up, 70% down "Ilhabela-inverso"0.9323
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Predominantly Upwind565.61.0609
Predominantly Downwind517.81.1588
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low652.60.9194
Triple Number All Purpose Medium514.41.1664
Triple Number All Purpose High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Predominantly Upwind565.61.0609
Predominantly Downwind517.81.1588
Predominantly Upwind Low741.40.8093
Predominantly Upwind Medium591.21.0149
Predominantly Upwind High554.61.0818
Predominantly Downwind Low707.90.8476
Predominantly Downwind Medium510.61.1751
Predominantly Downwind High438.71.3678
Chicago-Mac Upwind1.0411
Chicago-Mac All Purpose1.0871
Chicago-Mac Downwind1.1398
Bayview-Mac Cove Island1.0183
Bayview-Mac Shore1.0211
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching483.51.2410
Predominantly Reaching Low579.31.0357
Predominantly Reaching Medium477.41.2568
Predominantly Reaching High427.21.4043
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low929.40.6456
5-Band Low / Medium785.00.7644
5-Band Medium632.10.9492
5-Band Medium / High580.51.0336
5-Band High557.31.0766
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance566.31.0594
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance938.4719.5600.6535.5502.1474.9431.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance566.31.0594
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance938.4719.5600.6535.5502.1474.9431.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance566.3
Triple Number Coastal/Long Distance Low652.6
Triple Number Coastal/Long Distance Medium514.4
Triple Number Coastal/Long Distance High467.7
Triple Number Windward/Leeward Low856.0
Triple Number Windward/Leeward Medium642.0
Triple Number Windward/Leeward High573.3
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance938.4719.5600.6535.5502.1474.9431.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance566.31.0594
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance938.4719.5600.6535.5502.1474.9431.5
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)566.31.0594
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance938.4719.5600.6535.5502.1474.9431.5
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9194
Triple Number Coastal/Long Distance Medium1.1664
Triple Number Coastal/Long Distance High1.2829
Triple Number Windward/Leeward Low0.7009
Triple Number Windward/Leeward Medium0.9346
Triple Number Windward/Leeward High1.0466
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance938.4719.5600.6535.5502.1474.9431.5
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance566.31.0594
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance938.4719.5600.6535.5502.1474.9431.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance566.31.0594
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance938.4719.5600.6535.5502.1474.9431.5
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance938.4719.5600.6535.5502.1474.9431.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low652.6
Triple Number Coastal/Long Distance Medium514.4
Triple Number Coastal/Long Distance High467.7
Triple Number Windward/Leeward Low856.0
Triple Number Windward/Leeward Medium642.0
Triple Number Windward/Leeward High573.3
Predominantly Upwind565.6
Predominantly Downwind517.8
Predominantly Reaching494.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance566.31.0594
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance938.4719.5600.6535.5502.1474.9431.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9194
Triple Number Coastal/Long Distance Medium1.1664
Triple Number Coastal/Long Distance High1.2829
Triple Number Windward/Leeward Low0.7009
Triple Number Windward/Leeward Medium0.9346
Triple Number Windward/Leeward High1.0466
Coastal/Long Distance1.0594
Predominantly Upwind1.0609
Predominantly Downwind1.1588
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.9194
Tretall Distanseseilas Mellomvind1.1664
Tretall Distanseseilas Mye vind1.2829
Tretall Pølsebane Lite vind0.7009
Tretall Pølsebane Mellomvind0.9346
Tretall Pølsebane Mye vind1.0466
Distanseseilas ett tall (OSN 8-16kn)1.0594
Distanseseilas ett tall (APH 6-20kn)1.1585
Enkeltall Motvind1.0609
Enkeltall Medvind1.1588
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Coastal/Long Distance566.31.0594
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind565.61.0609
Predominantly Downwind517.81.1588
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore560.61.0704
Cape Doctor Coastal458.61.3083
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9194
Triple Number Coastal/Long Distance Medium1.1664
Triple Number Coastal/Long Distance High1.2829
Triple Number Windward/Leeward Low0.7009
Triple Number Windward/Leeward Medium0.9346
Triple Number Windward/Leeward High1.0466
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9194
Triple Number Coastal/Long Distance Medium1.1664
Triple Number Coastal/Long Distance High1.2829
Triple Number Windward/Leeward Low0.7009
Triple Number Windward/Leeward Medium0.9346
Triple Number Windward/Leeward High1.0466
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance566.31.0594
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Predominantly Upwind565.61.0609
Predominantly Downwind517.81.1588
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance938.4719.5600.6535.5502.1474.9431.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance566.31.0594
Triple Number Coastal/Long Distance Low652.60.9194
Triple Number Coastal/Long Distance Medium514.41.1664
Triple Number Coastal/Long Distance High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance938.4719.5600.6535.5502.1474.9431.5
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low652.60.9194
Triple Number All Purpose Medium514.41.1664
Triple Number All Purpose High467.71.2829
Triple Number Windward/Leeward Low856.00.7009
Triple Number Windward/Leeward Medium642.00.9346
Triple Number Windward/Leeward High573.31.0466
Predominantly Upwind565.61.0609
Predominantly Downwind517.81.1588
Predominantly Upwind Low741.40.8093
Predominantly Upwind Medium591.21.0149
Predominantly Upwind High554.61.0818
Predominantly Downwind Low707.90.8476
Predominantly Downwind Medium510.61.1751
Predominantly Downwind High438.71.3678
Chicago-Mac Upwind1.0411
Chicago-Mac All Purpose1.0871
Chicago-Mac Downwind1.1398
Bayview-Mac Cove Island1.0183
Bayview-Mac Shore1.0211
Harvest Moon Regatta445.21.3477
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy557.21.0769
San Francisco Bay Medium633.80.9467
Predominantly Reaching483.51.2410
Predominantly Reaching Low579.31.0357
Predominantly Reaching Medium477.41.2568
Predominantly Reaching High427.21.4043
Windward/Leeward 60-40 Low866.20.6927
Windward/Leeward 60-40 Medium668.10.8981
Windward/Leeward 60-40 High607.90.9871
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low929.40.6456
5-Band Low / Medium785.00.7644
5-Band Medium632.10.9492
5-Band Medium / High580.51.0336
5-Band High557.31.0766
ORC Ref  04560002MTUIssued on 26/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

RINGLE X

USA 61551

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassX 4.3 MkIIMeasurement08/05/2023HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA12.497Max. Beam3.988Draft2.195Displacement9,992Wetted area35.98IMS L11.765LSM011.673Acc. length12.497Sink (kg/mm) 27.15
VCGD0.095VCGM0.154RM Rated (kg·m) 219.2Limit of positive stability(°) 114.3Stability Index120.2
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.450PBW0.125PIPA0.0037
EDL2.765ST10.047ST20.195
ST30.200ST40.112ST50.270
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P16.325IG17.388ISP18.103MDT10.151MDL10.244MDT20.140MDL20.150TL0.960MW0.150GO0.284
E5.990J4.766BAS1.820FSD0.042SFJ0.255SPLWPLTPS5.765BD0.248MWT340.20MCG6.096
Flying Headsail Foretriangles IdISPTPS118.1035.765
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date08/05/2023MeasurerComment
SFFP0.735FFM1.535FF1.552LCFcl7.099SG1.0140
SAFP12.288FAM1.187FA1.192LCFsh7.356HBI1.354
W1111.1W2111.1W3111.1W4111.1
PD1481.0PD2481.0PD3481.0PD4481.0
WD12.170PLM9000.00GSA1.0RSA1.0RM221.4
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG1Stbd fuel tankFuel2002006.01-0.20Total deductible1686.01-0.20
Total deductible
ORC Ref  04560002MTUIssued on 26/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

RINGLE X

USA 61551

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain0.181.112.003.484.6453.9331/01/2022ODK109621-001
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentC650.051.583.065.757.769.2018.37NoYes096.1104/02/2022ODK109621-004Jib0.080.661.262.453.634.7817.33YesNo 42.2229/01/2922ODK109621-002
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA220.6817.5019.0911.599.60121%178.0527/12/2021ODK109621-003
ORC Ref  04560002MTUIssued on 26/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org