Club
Certificate
2023

Boat

INEVITABLE

USA 307

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°39.0°38.2°38.1°37.8°38.8°
Beat VMG3.544.334.794.985.075.125.12
52°5.386.396.887.077.177.237.28
60°5.666.627.087.287.397.477.54
75°5.866.787.257.547.737.868.01
90°6.077.027.427.647.948.198.52
110°6.007.047.618.078.468.779.38
120°5.766.917.558.098.599.1410.22
135°5.156.427.247.838.439.1110.92
150°4.355.536.537.207.658.099.47
Run VMG3.764.795.656.236.637.058.20
Gybe Angles143.3°146.9°149.2°150.3°148.9°173.9°143.0°

APH: 546.4

CDL: 8.972

GPH: 610.8

CertNo: USA307

BOAT
ClassJ 105DesignerJOHNSTONEBuilderTILLOTSON-PEARSONAge date07/1999Series date07/1991Offset fileJ105.OFFData fileUSA 307
HULL
Length Overall10.570 mMaximum Beam3.344 mDraft1.980 mDisplacement3,514 kgDLR4.4126IMS DivisionPerformanceDynamic Allowance0.190%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.381m
CREW
Maximum weight340 kgMinimum weight255 kg * when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail34.0234.79Headsail Luffed25.5825.58Headsail FlyingSymmetricAsymmetric88.3088.30 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail9.86Storm Jib7.62Heavy Weather Jib20.57
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  03330002RJLIssued on 18/08/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

INEVITABLE

USA 307

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 VMG1018.1831.5751.7723.6710.2703.0702.7
52°669.5563.4523.2509.4502.2497.9494.4
60°635.9543.7508.4494.3486.9482.1477.3
75°614.8531.0496.4477.5465.6458.0449.4
90°593.4513.0485.3470.9453.6439.5422.6
110°599.8511.1473.1446.1425.8410.3383.7
120°625.5520.9476.6444.9418.9393.8352.3
135°698.9561.1497.3459.8427.1395.4329.7
150°828.2650.5551.7500.2470.5445.0380.0
Run VMG956.3751.1637.0577.5543.2510.6438.8
Selected Courses
Windward / Leeward987.2791.3694.3650.5626.7606.8570.7
All purpose757.5622.3560.5530.5510.9495.1467.1
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward677.10.8862
All purpose546.41.0981
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance594.31.0095
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.1744.4628.3566.7531.2499.5444.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7720
Downwind "popa"0.9514
70% up, 30% down "Ilhabela"0.8183
30% up, 70% down "Ilhabela-inverso"0.8894
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Predominantly Upwind594.31.0095
Predominantly Downwind548.81.0932
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low689.90.8697
Triple Number All Purpose Medium543.21.1045
Triple Number All Purpose High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Predominantly Upwind594.31.0095
Predominantly Downwind548.81.0932
Predominantly Upwind Low772.00.7772
Predominantly Upwind Medium617.30.9720
Predominantly Upwind High585.01.0257
Predominantly Downwind Low749.40.8006
Predominantly Downwind Medium544.81.1014
Predominantly Downwind High454.41.3205
Chicago-Mac Upwind0.9926
Chicago-Mac All Purpose1.0308
Chicago-Mac Downwind1.0754
Bayview-Mac Cove Island0.9629
Bayview-Mac Shore0.9687
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching515.61.1636
Predominantly Reaching Low620.90.9664
Predominantly Reaching Medium510.51.1753
Predominantly Reaching High448.51.3378
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low972.10.6172
5-Band Low / Medium814.50.7366
5-Band Medium661.80.9066
5-Band Medium / High607.70.9873
5-Band High577.01.0399
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance594.31.0095
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.1744.4628.3566.7531.2499.5444.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance594.31.0095
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.1744.4628.3566.7531.2499.5444.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance594.3
Triple Number Coastal/Long Distance Low689.9
Triple Number Coastal/Long Distance Medium543.2
Triple Number Coastal/Long Distance High488.6
Triple Number Windward/Leeward Low889.3
Triple Number Windward/Leeward Medium670.9
Triple Number Windward/Leeward High598.3
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.1744.4628.3566.7531.2499.5444.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance594.31.0095
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.1744.4628.3566.7531.2499.5444.1
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)594.31.0095
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.1744.4628.3566.7531.2499.5444.1
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8697
Triple Number Coastal/Long Distance Medium1.1045
Triple Number Coastal/Long Distance High1.2281
Triple Number Windward/Leeward Low0.6747
Triple Number Windward/Leeward Medium0.8943
Triple Number Windward/Leeward High1.0029
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.1744.4628.3566.7531.2499.5444.1
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance594.31.0095
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.1744.4628.3566.7531.2499.5444.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance594.31.0095
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.1744.4628.3566.7531.2499.5444.1
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.1744.4628.3566.7531.2499.5444.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low689.9
Triple Number Coastal/Long Distance Medium543.2
Triple Number Coastal/Long Distance High488.6
Triple Number Windward/Leeward Low889.3
Triple Number Windward/Leeward Medium670.9
Triple Number Windward/Leeward High598.3
Predominantly Upwind594.3
Predominantly Downwind548.8
Predominantly Reaching526.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance594.31.0095
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.1744.4628.3566.7531.2499.5444.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8697
Triple Number Coastal/Long Distance Medium1.1045
Triple Number Coastal/Long Distance High1.2281
Triple Number Windward/Leeward Low0.6747
Triple Number Windward/Leeward Medium0.8943
Triple Number Windward/Leeward High1.0029
Coastal/Long Distance1.0095
Predominantly Upwind1.0095
Predominantly Downwind1.0932
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8697
Tretall Distanseseilas Mellomvind1.1045
Tretall Distanseseilas Mye vind1.2281
Tretall Pølsebane Lite vind0.6747
Tretall Pølsebane Mellomvind0.8943
Tretall Pølsebane Mye vind1.0029
Distanseseilas ett tall (OSN 8-16kn)1.0095
Distanseseilas ett tall (APH 6-20kn)1.0981
Enkeltall Motvind1.0095
Enkeltall Medvind1.0932
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Coastal/Long Distance594.31.0095
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind594.31.0095
Predominantly Downwind548.81.0932
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore581.51.0317
Cape Doctor Coastal475.51.2618
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8697
Triple Number Coastal/Long Distance Medium1.1045
Triple Number Coastal/Long Distance High1.2281
Triple Number Windward/Leeward Low0.6747
Triple Number Windward/Leeward Medium0.8943
Triple Number Windward/Leeward High1.0029
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8697
Triple Number Coastal/Long Distance Medium1.1045
Triple Number Coastal/Long Distance High1.2281
Triple Number Windward/Leeward Low0.6747
Triple Number Windward/Leeward Medium0.8943
Triple Number Windward/Leeward High1.0029
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance594.31.0095
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Predominantly Upwind594.31.0095
Predominantly Downwind548.81.0932
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.1744.4628.3566.7531.2499.5444.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance594.31.0095
Triple Number Coastal/Long Distance Low689.90.8697
Triple Number Coastal/Long Distance Medium543.21.1045
Triple Number Coastal/Long Distance High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.1744.4628.3566.7531.2499.5444.1
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low689.90.8697
Triple Number All Purpose Medium543.21.1045
Triple Number All Purpose High488.61.2281
Triple Number Windward/Leeward Low889.30.6747
Triple Number Windward/Leeward Medium670.90.8943
Triple Number Windward/Leeward High598.31.0029
Predominantly Upwind594.31.0095
Predominantly Downwind548.81.0932
Predominantly Upwind Low772.00.7772
Predominantly Upwind Medium617.30.9720
Predominantly Upwind High585.01.0257
Predominantly Downwind Low749.40.8006
Predominantly Downwind Medium544.81.1014
Predominantly Downwind High454.41.3205
Chicago-Mac Upwind0.9926
Chicago-Mac All Purpose1.0308
Chicago-Mac Downwind1.0754
Bayview-Mac Cove Island0.9629
Bayview-Mac Shore0.9687
Harvest Moon Regatta470.11.2763
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy579.21.0360
San Francisco Bay Medium659.00.9104
Predominantly Reaching515.61.1636
Predominantly Reaching Low620.90.9664
Predominantly Reaching Medium510.51.1753
Predominantly Reaching High448.51.3378
Windward/Leeward 60-40 Low896.40.6694
Windward/Leeward 60-40 Medium694.00.8646
Windward/Leeward 60-40 High634.40.9457
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low972.10.6172
5-Band Low / Medium814.50.7366
5-Band Medium661.80.9066
5-Band Medium / High607.70.9873
5-Band High577.01.0399
ORC Ref  03330002RJLIssued on 18/08/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

INEVITABLE

USA 307

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ 105MeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA10.570Max. Beam3.344Draft1.980Displacement3,514Wetted area21.91IMS L9.427LSM09.268Acc. length10.570Sink (kg/mm) 16.40
VCGD0.009VCGM0.017RM Rated (kg·m) 83.9Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.381PBW0.098PIPA0.0031
PSD0.025PHD0.049PHL0.138
PSA16.5°ESL0.915
ST10.019ST20.092ST30.092
ST40.046ST50.186
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P12.650IG12.223ISP12.604MDT10.101MDL10.165MDT20.101MDL20.101TL1.899MW0.165GO0.205
E4.450J4.131BAS1.552FSD0.029SFJ0.000SPL0.000WPLTPS5.820BD0.129MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/01/2020MeasurerComment
SFFP0.966FFMFF1.136LCFcl5.871SG
SAFP10.056FAMFA0.771LCFsh6.110HBI0.958
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03330002RJLIssued on 18/08/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

INEVITABLE

USA 307

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMN-200.181.682.8934.02
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ-210.082.024.1912.15YesNo 25.5813/10/2021
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment10515.0012.1013.557.807.9099%88.3011/12/2017a313.9812.1313.066.748.3181%76.7425/03/2023OUS152690-001
ORC Ref  03330002RJLIssued on 18/08/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org