Club
Certificate
2023

Boat

SPITFIRE

USA 41

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 Angles42.7°40.5°38.2°37.0°36.6°36.4°36.3°
Beat VMG3.704.494.995.215.335.415.49
52°5.606.567.047.257.367.447.53
60°5.876.767.197.427.557.657.76
75°6.046.877.317.607.827.978.17
90°6.107.037.507.838.068.248.58
110°5.896.927.487.948.368.769.54
120°5.586.747.417.928.418.899.89
135°5.026.237.077.628.148.6810.13
150°4.255.416.367.037.447.808.59
Run VMG3.684.685.516.096.456.907.70
Gybe Angles143.9°147.8°148.9°149.6°150.1°173.0°175.7°

APH: 541.9

CDL: 9.425

GPH: 605.8

CertNo: US7456

BOAT
ClassJ 105DesignerJohnstoneBuilderTPIAge date02/1995Series date01/1991Offset fileJ105.offData fileUSA61506
HULL
Length Overall10.570 mMaximum Beam3.344 mDraft2.013 mDisplacement3,999 kgDLR5.0839IMS DivisionPerformanceDynamic Allowance0.010%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.374m
CREW
Maximum weight500 kgMinimum weight375 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail33.2133.86Headsail Luffed38.8438.84Headsail FlyingSymmetricAsymmetric87.1287.12 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail9.86Storm Jib7.66Heavy Weather Jib20.66
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  03330002T48Issued on 17/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

SPITFIRE

USA 41

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 VMG973.5801.6721.9691.1675.0665.0656.3
52°642.4548.5511.4496.7489.0483.9478.2
60°613.0532.7500.4484.9476.7470.8463.8
75°596.5523.9492.4473.4460.3451.9440.9
90°590.1512.3479.7460.0446.7437.0419.4
110°611.1520.3481.1453.6430.8411.2377.3
120°645.0534.4485.9454.4428.2404.8364.1
135°717.4577.5509.2472.6442.2414.6355.3
150°847.2665.8565.6512.2483.8461.3419.3
Run VMG978.3768.8653.1591.5558.5521.6467.7
Selected Courses
Windward / Leeward975.9785.2687.5641.3616.8593.3562.0
All purpose750.6619.7557.1525.6506.0489.6463.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward668.00.8982
All purpose541.91.1071
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance588.81.0191
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance976.1740.4623.4559.8525.3495.0445.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8101
Downwind "popa"0.9252
70% up, 30% down "Ilhabela"0.8415
30% up, 70% down "Ilhabela-inverso"0.8874
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Predominantly Upwind581.21.0324
Predominantly Downwind553.81.0834
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low685.20.8757
Triple Number All Purpose Medium539.01.1131
Triple Number All Purpose High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Predominantly Upwind581.21.0324
Predominantly Downwind553.81.0834
Predominantly Upwind Low753.50.7963
Predominantly Upwind Medium597.71.0038
Predominantly Upwind High561.51.0685
Predominantly Downwind Low756.60.7930
Predominantly Downwind Medium554.41.0823
Predominantly Downwind High467.81.2825
Chicago-Mac Upwind1.0158
Chicago-Mac All Purpose1.0388
Chicago-Mac Downwind1.0657
Bayview-Mac Cove Island0.9718
Bayview-Mac Shore0.9827
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching513.81.1679
Predominantly Reaching Low621.20.9658
Predominantly Reaching Medium510.01.1765
Predominantly Reaching High450.01.3333
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low961.20.6242
5-Band Low / Medium806.60.7438
5-Band Medium652.80.9191
5-Band Medium / High596.11.0066
5-Band High567.41.0574
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance588.81.0191
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance976.1740.4623.4559.8525.3495.0445.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance588.81.0191
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance976.1740.4623.4559.8525.3495.0445.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance588.8
Triple Number Coastal/Long Distance Low685.2
Triple Number Coastal/Long Distance Medium539.0
Triple Number Coastal/Long Distance High483.9
Triple Number Windward/Leeward Low880.5
Triple Number Windward/Leeward Medium662.5
Triple Number Windward/Leeward High587.4
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance976.1740.4623.4559.8525.3495.0445.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance588.81.0191
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance976.1740.4623.4559.8525.3495.0445.2
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)588.81.0191
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance976.1740.4623.4559.8525.3495.0445.2
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8757
Triple Number Coastal/Long Distance Medium1.1131
Triple Number Coastal/Long Distance High1.2398
Triple Number Windward/Leeward Low0.6814
Triple Number Windward/Leeward Medium0.9056
Triple Number Windward/Leeward High1.0214
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance976.1740.4623.4559.8525.3495.0445.2
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance588.81.0191
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance976.1740.4623.4559.8525.3495.0445.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance588.81.0191
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance976.1740.4623.4559.8525.3495.0445.2
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance976.1740.4623.4559.8525.3495.0445.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low685.2
Triple Number Coastal/Long Distance Medium539.0
Triple Number Coastal/Long Distance High483.9
Triple Number Windward/Leeward Low880.5
Triple Number Windward/Leeward Medium662.5
Triple Number Windward/Leeward High587.4
Predominantly Upwind581.2
Predominantly Downwind553.8
Predominantly Reaching527.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance588.81.0191
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance976.1740.4623.4559.8525.3495.0445.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8757
Triple Number Coastal/Long Distance Medium1.1131
Triple Number Coastal/Long Distance High1.2398
Triple Number Windward/Leeward Low0.6814
Triple Number Windward/Leeward Medium0.9056
Triple Number Windward/Leeward High1.0214
Coastal/Long Distance1.0191
Predominantly Upwind1.0324
Predominantly Downwind1.0834
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8757
Tretall Distanseseilas Mellomvind1.1131
Tretall Distanseseilas Mye vind1.2398
Tretall Pølsebane Lite vind0.6814
Tretall Pølsebane Mellomvind0.9056
Tretall Pølsebane Mye vind1.0214
Distanseseilas ett tall (OSN 8-16kn)1.0191
Distanseseilas ett tall (APH 6-20kn)1.1071
Enkeltall Motvind1.0324
Enkeltall Medvind1.0834
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Coastal/Long Distance588.81.0191
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind581.21.0324
Predominantly Downwind553.81.0834
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore571.41.0500
Cape Doctor Coastal471.41.2727
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8757
Triple Number Coastal/Long Distance Medium1.1131
Triple Number Coastal/Long Distance High1.2398
Triple Number Windward/Leeward Low0.6814
Triple Number Windward/Leeward Medium0.9056
Triple Number Windward/Leeward High1.0214
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8757
Triple Number Coastal/Long Distance Medium1.1131
Triple Number Coastal/Long Distance High1.2398
Triple Number Windward/Leeward Low0.6814
Triple Number Windward/Leeward Medium0.9056
Triple Number Windward/Leeward High1.0214
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance588.81.0191
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Predominantly Upwind581.21.0324
Predominantly Downwind553.81.0834
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance976.1740.4623.4559.8525.3495.0445.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance588.81.0191
Triple Number Coastal/Long Distance Low685.20.8757
Triple Number Coastal/Long Distance Medium539.01.1131
Triple Number Coastal/Long Distance High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance976.1740.4623.4559.8525.3495.0445.2
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low685.20.8757
Triple Number All Purpose Medium539.01.1131
Triple Number All Purpose High483.91.2398
Triple Number Windward/Leeward Low880.50.6814
Triple Number Windward/Leeward Medium662.50.9056
Triple Number Windward/Leeward High587.41.0214
Predominantly Upwind581.21.0324
Predominantly Downwind553.81.0834
Predominantly Upwind Low753.50.7963
Predominantly Upwind Medium597.71.0038
Predominantly Upwind High561.51.0685
Predominantly Downwind Low756.60.7930
Predominantly Downwind Medium554.41.0823
Predominantly Downwind High467.81.2825
Chicago-Mac Upwind1.0158
Chicago-Mac All Purpose1.0388
Chicago-Mac Downwind1.0657
Bayview-Mac Cove Island0.9718
Bayview-Mac Shore0.9827
Harvest Moon Regatta473.11.2682
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy568.41.0556
San Francisco Bay Medium650.20.9228
Predominantly Reaching513.81.1679
Predominantly Reaching Low621.20.9658
Predominantly Reaching Medium510.01.1765
Predominantly Reaching High450.01.3333
Windward/Leeward 60-40 Low881.90.6803
Windward/Leeward 60-40 Medium677.50.8856
Windward/Leeward 60-40 High613.60.9779
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low961.20.6242
5-Band Low / Medium806.60.7438
5-Band Medium652.80.9191
5-Band Medium / High596.11.0066
5-Band High567.41.0574
ORC Ref  03330002T48Issued on 17/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

SPITFIRE

USA 41

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ 105Measurement09/09/2021HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA10.570Max. Beam3.344Draft2.013Displacement3,999Wetted area22.49IMS L9.512LSM09.230Acc. length10.570Sink (kg/mm) 16.70
VCGD-0.100VCGM-0.127RM Rated (kg·m) 98.4Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.374PBW0.098PIPA0.0042
PSD0.024PHD0.068PHL0.137
PSA16.5°ESL0.914
ST10.018ST20.091ST30.091
ST40.046ST50.186
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P12.650IG12.370ISP12.750MDT10.103MDL10.170MDT2MDL2TL2.000MW0.172GO0.172
E4.450J4.110BAS1.540FSD0.030SFJSPLWPLTPS5.980BD0.130MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.100Flotation Date09/09/2021MeasurerComment
SFFP0.966FFMFF1.032LCFcl5.665SG1.0250
SAFP10.056FAMFA0.807LCFsh5.910HBI0.903
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03330002T48Issued on 17/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

SPITFIRE

USA 41

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain0.120.891.632.843.7433.2124/08/2021
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentPHRF Genoa0.080.811.583.154.746.3612.25NoNo 38.84
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentClass spin15.1412.1013.627.607.9895%87.1224/08/2021Code 013.8011.5012.656.218.2575%69.7615/01/2021
ORC Ref  03330002T48Issued on 17/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org