International
Certificate
2023

Boat

IRIE 2

GRE 55

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 Angles43.0°40.6°38.8°38.2°37.6°37.2°37.2°
Beat VMG4.815.746.226.486.656.766.86
52°7.338.468.959.219.389.519.67
60°7.748.799.269.539.749.8910.11
75°8.039.019.559.9710.2810.5210.87
90°8.179.139.6610.1010.6011.0511.74
110°7.929.089.8210.5211.1911.7612.81
120°7.518.839.6610.3711.1812.0813.72
135°6.658.319.3010.1411.0512.1013.92
150°5.577.068.299.219.9610.8113.17
Run VMG4.826.117.188.008.639.3611.41
Gybe Angles141.7°142.9°147.8°152.3°150.4°147.8°146.5°

APH: 417.7

CDL: 14.451

GPH: 466.1

CertNo: US6024

BOAT
ClassKER 55DesignerKERBuilderAge date06/2002Series date01/2002Offset fileUS31218c.OFFData fileUS6024
HULL
Length Overall16.580 mMaximum Beam4.048 mDraft3.192 mDisplacement10,048 kgDLR3.6990IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.420m
CREW
Maximum weight1,010 kgMinimum weight758 kg * when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail96.6398.59Headsail Luffed70.0870.08Headsail FlyingSymmetricAsymmetric282.00282.00 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail28.12Storm Jib22.45Heavy Weather Jib60.59
SAIL LIMITS
Headsails7  Spinnakers5
STABILITY
Righting Moment393.9 kg·mStability Index163.4
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  04560002Q1WIssued on 11/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

IRIE 2

GRE 55

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 VMG748.7626.8579.2555.4541.6532.8525.2
52°491.3425.3402.1391.0383.7378.6372.2
60°465.2409.7388.9377.7369.7363.9356.1
75°448.5399.6377.0361.0350.2342.2331.1
90°440.6394.2372.7356.6339.6325.9306.7
110°454.5396.3366.6342.1321.7306.1280.9
120°479.6407.7372.6347.1322.0298.1262.4
135°541.0433.1387.2355.2325.9297.5258.6
150°646.2510.0434.1391.0361.4333.0273.3
Run VMG746.2588.9501.2449.8417.2384.5315.6
Selected Courses
Windward / Leeward747.5607.9540.2502.6479.4458.6420.4
All purpose570.1477.1433.9407.9389.1372.7346.2
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward519.71.1544
All purpose417.71.4363
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance455.71.3166
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance747.3572.4488.0437.1405.3376.2327.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"1.0220
Downwind "popa"1.2341
70% up, 30% down "Ilhabela"1.0775
30% up, 70% down "Ilhabela-inverso"1.1617
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Predominantly Upwind453.51.3230
Predominantly Downwind421.61.4232
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low523.61.1460
Triple Number All Purpose Medium417.61.4367
Triple Number All Purpose High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Predominantly Upwind453.51.3230
Predominantly Downwind421.61.4232
Predominantly Upwind Low579.91.0347
Predominantly Upwind Medium472.61.2695
Predominantly Upwind High441.21.3600
Predominantly Downwind Low577.31.0394
Predominantly Downwind Medium422.01.4219
Predominantly Downwind High341.21.7584
Chicago-Mac Upwind1.2997
Chicago-Mac All Purpose1.3449
Chicago-Mac Downwind1.3967
Bayview-Mac Cove Island1.2618
Bayview-Mac Shore1.2717
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching393.41.5250
Predominantly Reaching Low472.11.2708
Predominantly Reaching Medium391.81.5314
Predominantly Reaching High337.81.7764
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low736.70.8144
5-Band Low / Medium624.30.9611
5-Band Medium510.11.1763
5-Band Medium / High459.41.3061
5-Band High427.01.4051
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance455.71.3166
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance747.3572.4488.0437.1405.3376.2327.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance455.71.3166
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance747.3572.4488.0437.1405.3376.2327.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance455.7
Triple Number Coastal/Long Distance Low523.6
Triple Number Coastal/Long Distance Medium417.6
Triple Number Coastal/Long Distance High366.8
Triple Number Windward/Leeward Low677.7
Triple Number Windward/Leeward Medium518.1
Triple Number Windward/Leeward High449.5
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance747.3572.4488.0437.1405.3376.2327.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance455.71.3166
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance747.3572.4488.0437.1405.3376.2327.4
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)455.71.3166
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance747.3572.4488.0437.1405.3376.2327.4
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.1460
Triple Number Coastal/Long Distance Medium1.4367
Triple Number Coastal/Long Distance High1.6356
Triple Number Windward/Leeward Low0.8854
Triple Number Windward/Leeward Medium1.1581
Triple Number Windward/Leeward High1.3348
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance747.3572.4488.0437.1405.3376.2327.4
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance455.71.3166
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance747.3572.4488.0437.1405.3376.2327.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance455.71.3166
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance747.3572.4488.0437.1405.3376.2327.4
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance747.3572.4488.0437.1405.3376.2327.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low523.6
Triple Number Coastal/Long Distance Medium417.6
Triple Number Coastal/Long Distance High366.8
Triple Number Windward/Leeward Low677.7
Triple Number Windward/Leeward Medium518.1
Triple Number Windward/Leeward High449.5
Predominantly Upwind453.5
Predominantly Downwind421.6
Predominantly Reaching402.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance455.71.3166
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance747.3572.4488.0437.1405.3376.2327.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.1460
Triple Number Coastal/Long Distance Medium1.4367
Triple Number Coastal/Long Distance High1.6356
Triple Number Windward/Leeward Low0.8854
Triple Number Windward/Leeward Medium1.1581
Triple Number Windward/Leeward High1.3348
Coastal/Long Distance1.3166
Predominantly Upwind1.3230
Predominantly Downwind1.4232
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind1.1460
Tretall Distanseseilas Mellomvind1.4367
Tretall Distanseseilas Mye vind1.6356
Tretall Pølsebane Lite vind0.8854
Tretall Pølsebane Mellomvind1.1581
Tretall Pølsebane Mye vind1.3348
Distanseseilas ett tall (OSN 8-16kn)1.3166
Distanseseilas ett tall (APH 6-20kn)1.4363
Enkeltall Motvind1.3230
Enkeltall Medvind1.4232
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Coastal/Long Distance455.71.3166
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind453.51.3230
Predominantly Downwind421.61.4232
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore431.91.3893
Cape Doctor Coastal354.11.6943
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.1460
Triple Number Coastal/Long Distance Medium1.4367
Triple Number Coastal/Long Distance High1.6356
Triple Number Windward/Leeward Low0.8854
Triple Number Windward/Leeward Medium1.1581
Triple Number Windward/Leeward High1.3348
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.1460
Triple Number Coastal/Long Distance Medium1.4367
Triple Number Coastal/Long Distance High1.6356
Triple Number Windward/Leeward Low0.8854
Triple Number Windward/Leeward Medium1.1581
Triple Number Windward/Leeward High1.3348
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance455.71.3166
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Predominantly Upwind453.51.3230
Predominantly Downwind421.61.4232
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance747.3572.4488.0437.1405.3376.2327.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance455.71.3166
Triple Number Coastal/Long Distance Low523.61.1460
Triple Number Coastal/Long Distance Medium417.61.4367
Triple Number Coastal/Long Distance High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance747.3572.4488.0437.1405.3376.2327.4
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low523.61.1460
Triple Number All Purpose Medium417.61.4367
Triple Number All Purpose High366.81.6356
Triple Number Windward/Leeward Low677.70.8854
Triple Number Windward/Leeward Medium518.11.1581
Triple Number Windward/Leeward High449.51.3348
Predominantly Upwind453.51.3230
Predominantly Downwind421.61.4232
Predominantly Upwind Low579.91.0347
Predominantly Upwind Medium472.61.2695
Predominantly Upwind High441.21.3600
Predominantly Downwind Low577.31.0394
Predominantly Downwind Medium422.01.4219
Predominantly Downwind High341.21.7584
Chicago-Mac Upwind1.2997
Chicago-Mac All Purpose1.3449
Chicago-Mac Downwind1.3967
Bayview-Mac Cove Island1.2618
Bayview-Mac Shore1.2717
Harvest Moon Regatta356.01.6854
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy436.31.3752
San Francisco Bay Medium506.91.1836
Predominantly Reaching393.41.5250
Predominantly Reaching Low472.11.2708
Predominantly Reaching Medium391.81.5314
Predominantly Reaching High337.81.7764
Windward/Leeward 60-40 Low679.70.8828
Windward/Leeward 60-40 Medium534.31.1229
Windward/Leeward 60-40 High477.61.2563
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low736.70.8144
5-Band Low / Medium624.30.9611
5-Band Medium510.11.1763
5-Band Medium / High459.41.3061
5-Band High427.01.4051
ORC Ref  04560002Q1WIssued on 11/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

IRIE 2

GRE 55

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassKER 55Measurement01/06/2004HINPlan reviewHull constructionCarbonCarbon RudderYesLight stanchionsNoTrim tabNo
LOA16.580Max. Beam4.048Draft3.192Displacement10,048Wetted area42.99IMS L14.443LSM013.952Acc. length13.156Sink (kg/mm) 28.68
VCGD-1.351VCGM-1.256RM Rated (kg·m) 393.9Limit of positive stability(°) 157.1Stability Index163.4
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.420PBW0.120PIPA0.0045
EDL1.985ST10.050ST20.190
ST30.200ST40.125ST50.295
RIG
Forestay tensionAftInner stayNone FittedCarbon mastYesHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P21.800IG21.129ISP23.864MDT10.155MDL10.315MDT20.128MDL20.213TL2.900MW0.330GO0.347
E7.370J6.420BAS2.044FSD0.025SFJ0.350SPL0.000WPLTPS8.220BD0.390MWT395.00MCG8.010
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date04/06/2018MeasurerComment
SFFP1.386FFM1.470FF1.472LCFcl8.476SG1.0200
SAFP15.265FAM1.270FA1.271LCFsh8.683HBI1.389
W1133.5W2133.5W3133.5W4133.5
PD1482.9PD2482.9PD3482.9PD4482.9
WD18.020PLM9000.00GSA1.0RSA1.0RM392.3
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04560002Q1WIssued on 11/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

IRIE 2

GRE 55

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentORC0.281.652.924.776.1996.63* Copied from legacy *
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC0.911.753.425.036.5620.78YesNo 70.08* Copied from legacy *
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentORC24.7824.7824.7813.5714.0097%282.00* Copied from legacy *C023.6722.5323.108.2310.9575%168.90
ORC Ref  04560002Q1WIssued on 11/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org