Club
Certificate
2023

Boat

Muskrat

USA 93300

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 Angles41.8°39.0°37.0°35.8°35.4°35.1°35.1°
Beat VMG4.014.785.165.345.455.535.59
52°5.996.847.177.327.427.497.58
60°6.257.017.337.507.617.707.81
75°6.387.107.487.747.918.048.21
90°6.237.047.487.838.128.358.64
110°5.977.057.638.098.468.759.32
120°5.796.927.558.098.619.1310.07
135°5.206.427.207.758.328.9210.65
150°4.395.556.527.157.567.969.07
Run VMG3.804.815.646.196.557.047.86
Gybe Angles143.3°146.9°149.6°150.5°149.6°174.8°142.6°

APH: 530.1

CDL: 9.701

GPH: 589.5

CertNo: US6511

BOAT
ClassJ 105 ModDesignerJohnstoneBuilderTPIAge date01/1995Series date01/1995Offset fileUS93300.offData fileUS6511
HULL
Length Overall10.570 mMaximum Beam3.346 mDraft2.170 mDisplacement3,673 kgDLR4.5202IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.375m
CREW
Maximum weight630 kgMinimum weight473 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail35.5136.07Headsail Luffed41.7641.76Headsail FlyingSymmetricAsymmetric88.4588.45 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail10.46Storm Jib8.26Heavy Weather Jib22.29
SAIL LIMITS
Headsails5  Spinnakers4
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.
ORC Ref  04560002PPAIssued on 05/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Muskrat

USA 93300

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 VMG898.2752.4698.3674.0660.2651.0644.1
52°600.6526.1502.3491.9485.3480.5475.1
60°576.4513.9490.9480.1472.9467.7461.0
75°563.9507.1481.4465.0455.2447.9438.7
90°578.0511.3481.1459.7443.3431.3416.8
110°603.3510.3471.8445.1425.6411.5386.2
120°621.5520.1476.5444.8418.2394.5357.7
135°692.5561.2500.1464.4432.8403.5338.1
150°820.7648.4552.5503.5475.9452.2396.8
Run VMG947.6748.7638.0581.2549.5511.3458.2
Selected Courses
Windward / Leeward922.9750.6668.1627.6604.9581.2551.1
All purpose714.7597.7545.0516.6497.9481.9455.9
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward649.80.9234
All purpose530.11.1320
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.91.0455
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance925.4710.1607.9549.6516.5486.3437.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8436
Downwind "popa"0.9471
70% up, 30% down "Ilhabela"0.8722
30% up, 70% down "Ilhabela-inverso"0.9135
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Predominantly Upwind566.81.0586
Predominantly Downwind541.91.1072
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low656.20.9143
Triple Number All Purpose Medium528.21.1360
Triple Number All Purpose High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Predominantly Upwind566.81.0586
Predominantly Downwind541.91.1072
Predominantly Upwind Low712.40.8422
Predominantly Upwind Medium584.11.0273
Predominantly Upwind High552.71.0855
Predominantly Downwind Low730.00.8219
Predominantly Downwind Medium544.41.1022
Predominantly Downwind High458.01.3101
Chicago-Mac Upwind1.0420
Chicago-Mac All Purpose1.0636
Chicago-Mac Downwind1.0891
Bayview-Mac Cove Island1.0041
Bayview-Mac Shore1.0157
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching505.11.1878
Predominantly Reaching Low601.40.9977
Predominantly Reaching Medium502.61.1938
Predominantly Reaching High442.41.3563
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low909.60.6596
5-Band Low / Medium771.60.7776
5-Band Medium636.90.9420
5-Band Medium / High584.11.0272
5-Band High556.31.0785
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.91.0455
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance925.4710.1607.9549.6516.5486.3437.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.91.0455
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance925.4710.1607.9549.6516.5486.3437.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance573.9
Triple Number Coastal/Long Distance Low656.2
Triple Number Coastal/Long Distance Medium528.2
Triple Number Coastal/Long Distance High476.2
Triple Number Windward/Leeward Low836.7
Triple Number Windward/Leeward Medium645.6
Triple Number Windward/Leeward High575.8
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance925.4710.1607.9549.6516.5486.3437.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.91.0455
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance925.4710.1607.9549.6516.5486.3437.9
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)573.91.0455
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance925.4710.1607.9549.6516.5486.3437.9
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9143
Triple Number Coastal/Long Distance Medium1.1360
Triple Number Coastal/Long Distance High1.2601
Triple Number Windward/Leeward Low0.7171
Triple Number Windward/Leeward Medium0.9293
Triple Number Windward/Leeward High1.0420
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance925.4710.1607.9549.6516.5486.3437.9
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.91.0455
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance925.4710.1607.9549.6516.5486.3437.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.91.0455
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance925.4710.1607.9549.6516.5486.3437.9
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance925.4710.1607.9549.6516.5486.3437.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low656.2
Triple Number Coastal/Long Distance Medium528.2
Triple Number Coastal/Long Distance High476.2
Triple Number Windward/Leeward Low836.7
Triple Number Windward/Leeward Medium645.6
Triple Number Windward/Leeward High575.8
Predominantly Upwind566.8
Predominantly Downwind541.9
Predominantly Reaching517.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.91.0455
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance925.4710.1607.9549.6516.5486.3437.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9143
Triple Number Coastal/Long Distance Medium1.1360
Triple Number Coastal/Long Distance High1.2601
Triple Number Windward/Leeward Low0.7171
Triple Number Windward/Leeward Medium0.9293
Triple Number Windward/Leeward High1.0420
Coastal/Long Distance1.0455
Predominantly Upwind1.0586
Predominantly Downwind1.1072
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.9143
Tretall Distanseseilas Mellomvind1.1360
Tretall Distanseseilas Mye vind1.2601
Tretall Pølsebane Lite vind0.7171
Tretall Pølsebane Mellomvind0.9293
Tretall Pølsebane Mye vind1.0420
Distanseseilas ett tall (OSN 8-16kn)1.0455
Distanseseilas ett tall (APH 6-20kn)1.1320
Enkeltall Motvind1.0586
Enkeltall Medvind1.1072
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Coastal/Long Distance573.91.0455
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind566.81.0586
Predominantly Downwind541.91.1072
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore560.21.0711
Cape Doctor Coastal463.71.2940
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9143
Triple Number Coastal/Long Distance Medium1.1360
Triple Number Coastal/Long Distance High1.2601
Triple Number Windward/Leeward Low0.7171
Triple Number Windward/Leeward Medium0.9293
Triple Number Windward/Leeward High1.0420
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9143
Triple Number Coastal/Long Distance Medium1.1360
Triple Number Coastal/Long Distance High1.2601
Triple Number Windward/Leeward Low0.7171
Triple Number Windward/Leeward Medium0.9293
Triple Number Windward/Leeward High1.0420
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.91.0455
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Predominantly Upwind566.81.0586
Predominantly Downwind541.91.1072
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance925.4710.1607.9549.6516.5486.3437.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.91.0455
Triple Number Coastal/Long Distance Low656.20.9143
Triple Number Coastal/Long Distance Medium528.21.1360
Triple Number Coastal/Long Distance High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance925.4710.1607.9549.6516.5486.3437.9
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low656.20.9143
Triple Number All Purpose Medium528.21.1360
Triple Number All Purpose High476.21.2601
Triple Number Windward/Leeward Low836.70.7171
Triple Number Windward/Leeward Medium645.60.9293
Triple Number Windward/Leeward High575.81.0420
Predominantly Upwind566.81.0586
Predominantly Downwind541.91.1072
Predominantly Upwind Low712.40.8422
Predominantly Upwind Medium584.11.0273
Predominantly Upwind High552.71.0855
Predominantly Downwind Low730.00.8219
Predominantly Downwind Medium544.41.1022
Predominantly Downwind High458.01.3101
Chicago-Mac Upwind1.0420
Chicago-Mac All Purpose1.0636
Chicago-Mac Downwind1.0891
Bayview-Mac Cove Island1.0041
Bayview-Mac Shore1.0157
Harvest Moon Regatta464.31.2924
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy556.11.0789
San Francisco Bay Medium631.30.9504
Predominantly Reaching505.11.1878
Predominantly Reaching Low601.40.9977
Predominantly Reaching Medium502.61.1938
Predominantly Reaching High442.41.3563
Windward/Leeward 60-40 Low834.50.7190
Windward/Leeward 60-40 Medium659.10.9103
Windward/Leeward 60-40 High601.30.9978
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low909.60.6596
5-Band Low / Medium771.60.7776
5-Band Medium636.90.9420
5-Band Medium / High584.11.0272
5-Band High556.31.0785
ORC Ref  04560002PPAIssued on 05/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Muskrat

USA 93300

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ 105 ModMeasurement26/02/2020HINPlan reviewHull constructionCoredCarbon RudderYesLight stanchionsNoTrim tabNo
LOA10.570Max. Beam3.346Draft2.170Displacement3,673Wetted area21.49IMS L9.585LSM09.330Acc. length10.570Sink (kg/mm) 16.64
VCGD0.028VCGM0.023RM Rated (kg·m) 86.4Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.375PBW0.096PIPA0.0038
PSD0.025PHD0.049PHL0.136
PSA21.0°ESL0.920
ST10.022ST20.085ST30.085
ST40.047ST50.190
RIG
Forestay tensionAftInner stayNone FittedCarbon mastYesHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays1Spreaders2Rotating mastNo
P14.005IG12.832ISP13.507MDT10.108MDL10.160MDT20.105MDL20.110TL2.060MW0.185GO0.190
E4.265J4.135BAS1.567FSDSFJSPL0.000WPLTPS5.790BD0.126MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered86.4Flotation Date26/02/2020MeasurerComment
SFFP0.966FFMFF1.104LCFcl5.822SG1.0070
SAFP10.056FAMFA0.775LCFsh6.063HBI0.927
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG0.9000450.000.00Total deductible410.000.00
OTHER ITEMSIdKindDescriptionWeightLCGVCGaAnchor00.00Total deductible0
ORC Ref  04560002PPAIssued on 05/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Muskrat

USA 93300

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment28950660.010.881.612.763.6035.512020 MAIN
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment3DL genoa- furl0.080.801.613.194.766.3713.09NoNo 41.7628/03/20186107741-03AP Genoa0.080.801.553.114.736.3813.01NoNo 41.0715/01/2023OUS151513-001Jib0.050.561.042.063.114.1712.90YesNo 26.8630/01/202061018378-01
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA1.5-2015.3513.1914.277.387.6796%88.4528/05/2020OUS138491-001
ORC Ref  04560002PPAIssued on 05/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org