International
Certificate
2023

Boat

ROCKSTEADY

USA 60492

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 Angles44.1°41.4°39.0°38.1°37.5°37.2°37.6°
Beat VMG4.174.985.435.685.825.905.95
52°6.447.447.838.068.198.268.34
60°6.867.778.128.288.428.518.60
75°7.218.048.438.658.798.919.08
90°7.218.078.538.899.169.359.65
110°6.667.878.488.829.109.4710.23
120°6.517.808.488.999.419.7410.40
135°5.817.298.178.759.329.9211.43
150°4.906.187.318.138.598.9910.10
Run VMG4.245.356.337.057.447.808.75
Gybe Angles143.0°146.0°148.4°151.2°150.5°171.2°144.0°

APH: 481.8

CDL: 11.706

GPH: 536.3

CertNo: US6049

BOAT
ClassXP 44DesignerJEPPESENBuilderX-YACHTSAge date05/2010Series date01/2010Offset fileXP-44.offData fileUSA60492
HULL
Length Overall13.305 mMaximum Beam4.052 mDraft2.688 mDisplacement9,420 kgDLR5.3365IMS DivisionCruiser/RacerDynamic Allowance0.090%Age Allowance0.422%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.460m
CREW
Maximum weight868 kgMinimum weight651 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail63.3564.52Headsail Luffed48.8048.80Headsail Flying90.5490.54SymmetricAsymmetric204.96204.96 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail18.64Storm Jib16.69Heavy Weather Jib45.06
SAIL LIMITS
Headsails7  Spinnakers5
STABILITY
Righting Moment256.5 kg·mStability Index131.6
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  03330002KMCIssued on 05/05/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

ROCKSTEADY

USA 60492

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 VMG862.8722.5662.8633.4618.5610.1604.8
52°559.4483.7459.8446.9439.8435.6431.5
60°525.1463.2443.6434.6427.7423.2418.4
75°499.1447.9427.0416.3409.4404.0396.5
90°499.4446.3421.8404.9393.0385.2373.1
110°540.9457.4424.3408.0395.5380.1351.8
120°552.6461.4424.5400.5382.7369.5346.3
135°620.0493.8440.8411.5386.4362.7315.0
150°735.2582.8492.3443.1419.2400.5356.3
Run VMG849.0673.0568.5510.8483.9461.8411.4
Selected Courses
Windward / Leeward855.9697.8615.7572.1551.2536.0508.1
All purpose652.7545.0494.8467.7452.2440.0418.4
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward596.61.0057
All purpose481.81.2454
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance524.61.1438
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance855.2655.9556.0498.9468.9444.6403.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8908
Downwind "popa"1.0610
70% up, 30% down "Ilhabela"0.9358
30% up, 70% down "Ilhabela-inverso"1.0035
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Predominantly Upwind519.61.1547
Predominantly Downwind485.71.2353
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low598.81.0020
Triple Number All Purpose Medium479.31.2518
Triple Number All Purpose High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Predominantly Upwind519.61.1547
Predominantly Downwind485.71.2353
Predominantly Upwind Low664.60.9029
Predominantly Upwind Medium540.41.1102
Predominantly Upwind High509.91.1768
Predominantly Downwind Low659.10.9103
Predominantly Downwind Medium483.31.2413
Predominantly Downwind High412.41.4550
Chicago-Mac Upwind1.1341
Chicago-Mac All Purpose1.1715
Chicago-Mac Downwind1.2142
Bayview-Mac Cove Island1.1022
Bayview-Mac Shore1.1096
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching452.51.3260
Predominantly Reaching Low537.91.1154
Predominantly Reaching Medium448.51.3378
Predominantly Reaching High399.41.5022
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low843.70.7111
5-Band Low / Medium714.90.8393
5-Band Medium583.31.0286
5-Band Medium / High536.91.1176
5-Band High512.91.1698
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance524.61.1438
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance855.2655.9556.0498.9468.9444.6403.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance524.61.1438
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance855.2655.9556.0498.9468.9444.6403.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance524.6
Triple Number Coastal/Long Distance Low598.8
Triple Number Coastal/Long Distance Medium479.3
Triple Number Coastal/Long Distance High434.9
Triple Number Windward/Leeward Low776.8
Triple Number Windward/Leeward Medium591.9
Triple Number Windward/Leeward High529.3
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance855.2655.9556.0498.9468.9444.6403.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance524.61.1438
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance855.2655.9556.0498.9468.9444.6403.0
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)524.61.1438
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance855.2655.9556.0498.9468.9444.6403.0
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0020
Triple Number Coastal/Long Distance Medium1.2518
Triple Number Coastal/Long Distance High1.3795
Triple Number Windward/Leeward Low0.7724
Triple Number Windward/Leeward Medium1.0137
Triple Number Windward/Leeward High1.1335
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance855.2655.9556.0498.9468.9444.6403.0
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance524.61.1438
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance855.2655.9556.0498.9468.9444.6403.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance524.61.1438
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance855.2655.9556.0498.9468.9444.6403.0
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance855.2655.9556.0498.9468.9444.6403.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low598.8
Triple Number Coastal/Long Distance Medium479.3
Triple Number Coastal/Long Distance High434.9
Triple Number Windward/Leeward Low776.8
Triple Number Windward/Leeward Medium591.9
Triple Number Windward/Leeward High529.3
Predominantly Upwind519.6
Predominantly Downwind485.7
Predominantly Reaching463.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance524.61.1438
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance855.2655.9556.0498.9468.9444.6403.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0020
Triple Number Coastal/Long Distance Medium1.2518
Triple Number Coastal/Long Distance High1.3795
Triple Number Windward/Leeward Low0.7724
Triple Number Windward/Leeward Medium1.0137
Triple Number Windward/Leeward High1.1335
Coastal/Long Distance1.1438
Predominantly Upwind1.1547
Predominantly Downwind1.2353
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind1.0020
Tretall Distanseseilas Mellomvind1.2518
Tretall Distanseseilas Mye vind1.3795
Tretall Pølsebane Lite vind0.7724
Tretall Pølsebane Mellomvind1.0137
Tretall Pølsebane Mye vind1.1335
Distanseseilas ett tall (OSN 8-16kn)1.1438
Distanseseilas ett tall (APH 6-20kn)1.2454
Enkeltall Motvind1.1547
Enkeltall Medvind1.2353
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Coastal/Long Distance524.61.1438
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind519.61.1547
Predominantly Downwind485.71.2353
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore516.51.1618
Cape Doctor Coastal424.91.4122
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0020
Triple Number Coastal/Long Distance Medium1.2518
Triple Number Coastal/Long Distance High1.3795
Triple Number Windward/Leeward Low0.7724
Triple Number Windward/Leeward Medium1.0137
Triple Number Windward/Leeward High1.1335
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0020
Triple Number Coastal/Long Distance Medium1.2518
Triple Number Coastal/Long Distance High1.3795
Triple Number Windward/Leeward Low0.7724
Triple Number Windward/Leeward Medium1.0137
Triple Number Windward/Leeward High1.1335
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance524.61.1438
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Predominantly Upwind519.61.1547
Predominantly Downwind485.71.2353
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance855.2655.9556.0498.9468.9444.6403.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance524.61.1438
Triple Number Coastal/Long Distance Low598.81.0020
Triple Number Coastal/Long Distance Medium479.31.2518
Triple Number Coastal/Long Distance High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance855.2655.9556.0498.9468.9444.6403.0
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low598.81.0020
Triple Number All Purpose Medium479.31.2518
Triple Number All Purpose High434.91.3795
Triple Number Windward/Leeward Low776.80.7724
Triple Number Windward/Leeward Medium591.91.0137
Triple Number Windward/Leeward High529.31.1335
Predominantly Upwind519.61.1547
Predominantly Downwind485.71.2353
Predominantly Upwind Low664.60.9029
Predominantly Upwind Medium540.41.1102
Predominantly Upwind High509.91.1768
Predominantly Downwind Low659.10.9103
Predominantly Downwind Medium483.31.2413
Predominantly Downwind High412.41.4550
Chicago-Mac Upwind1.1341
Chicago-Mac All Purpose1.1715
Chicago-Mac Downwind1.2142
Bayview-Mac Cove Island1.1022
Bayview-Mac Shore1.1096
Harvest Moon Regatta418.81.4328
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy512.71.1703
San Francisco Bay Medium581.91.0311
Predominantly Reaching452.51.3260
Predominantly Reaching Low537.91.1154
Predominantly Reaching Medium448.51.3378
Predominantly Reaching High399.41.5022
Windward/Leeward 60-40 Low780.00.7692
Windward/Leeward 60-40 Medium610.60.9826
Windward/Leeward 60-40 High556.81.0775
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low843.70.7111
5-Band Low / Medium714.90.8393
5-Band Medium583.31.0286
5-Band Medium / High536.91.1176
5-Band High512.91.1698
ORC Ref  03330002KMCIssued on 05/05/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

ROCKSTEADY

USA 60492

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassXP 44Measurement26/04/2023HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA13.305Max. Beam4.052Draft2.688Displacement9,420Wetted area37.34IMS L12.298LSM012.084Acc. length13.169Sink (kg/mm) 27.41
VCGD-0.128VCGM-0.106RM Rated (kg·m) 256.5Limit of positive stability(°) 126.8Stability Index131.6
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.460PBW0.116PIPA0.0038
EDL2.780ST10.049ST20.177
ST30.177ST40.111ST50.275
RIG
Forestay tensionAftInner stayNone FittedCarbon mastYesHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P17.925IG18.180ISP19.880MDT10.132MDL10.279MDT20.120MDL20.210TL1.400MW0.275GO0.299
E5.940J4.975BAS1.755FSD0.041SFJ0.300SPLWPLTPS6.375BD0.299MWTMCG
Flying Headsail Foretriangles IdISPTPS119.8806.375
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date26/04/2023MeasurerComment
SFFP0.744FFM1.491FF1.506LCFcl7.424SG1.0210
SAFP13.259FAM1.213FA1.214LCFsh7.682HBI1.339
W1126.8W2126.8W3126.8W4126.8
PD1477.0PD2477.0PD3477.0PD4477.0
WD12.315PLM9000.00GSA1.0RSA1.0RM257.8
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG1Stbd fuel tankFuel2002006.05-0.15Total deductible1686.05-0.15
Total deductible
ORC Ref  03330002KMCIssued on 05/05/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

ROCKSTEADY

USA 60492

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM-10.221.252.333.834.9163.35from ORR
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentTweener0.081.452.825.407.589.3017.84NoYes190.54From ORRJib0.120.841.532.764.005.2717.83YesNo 48.80From ORR
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA2-2322.3819.2520.8211.8911.52103%204.9620/04/2023OUS152399-002A221.5619.1620.3611.2111.16100%190.03from ORR
ORC Ref  03330002KMCIssued on 05/05/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org