Club
Certificate
2024

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 24 kt
Beat Angles42.7°40.5°38.3°37.1°36.8°36.5°36.3°36.9°
Beat VMG3.694.494.995.215.335.405.475.45
52°5.596.557.047.257.357.427.517.53
60°5.866.757.197.427.547.627.747.79
75°6.026.867.307.597.817.948.148.28
90°5.956.937.447.767.988.188.558.82
110°5.796.867.477.928.308.699.4510.20
120°5.576.737.407.918.398.879.8511.52
135°5.016.227.067.608.128.6510.0613.06
150°4.245.396.357.017.427.788.5411.15
Run VMG3.674.675.506.076.436.887.679.65
Gybe Angles143.5°147.4°148.8°149.6°149.8°173.5°175.7°139.6°
APH ToD:543.3CDL: 9.446APH ToT: 1.1044CertNo:US7456
BOAT
ClassJ 105DesignerJohnstoneBuilderTPIAge date02/1992Series date01/1991Offset fileJ105.offData fileUSA61506
HULL
Length Overall10.570 mMaximum Beam3.344 mDraft2.013 mDisplacement3,999 kgDLR5.0839IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.374m
CREW
Maximum weight500 kg(declared)Minimum weight370 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.

Club
Certificate
2024

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 24 kt
Beat VMG975.6802.6721.3690.4675.2666.7657.7660.5
52°644.0549.4511.7496.7489.6485.3479.6478.1
60°614.5533.5500.7485.3477.4472.4465.1462.2
75°598.0524.7492.9474.1461.2453.2442.1435.0
90°605.1519.3484.2464.0450.9439.9421.1408.0
110°621.7524.8481.8454.7433.5414.3380.8353.0
120°646.8535.1486.5455.3429.2406.0365.5312.5
135°718.5578.6509.9473.5443.4416.1357.9275.7
150°849.0667.4567.0513.4485.0462.9421.4322.9
Run VMG980.4770.6654.7592.9560.1523.3469.5372.9
Selected Courses
Windward / Leeward978.0786.6688.0641.6617.6595.0563.6516.7
All purpose754.5621.8558.0526.4507.3491.4465.4431.1
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward668.90.8970
All purpose543.31.1044
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.01.0170
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance978.2742.0624.3560.6526.6496.8446.7410.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8093
Downwind "popa"0.9228
70% up, 30% down "Ilhabela"0.8403
30% up, 70% down "Ilhabela-inverso"0.8855
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Predominantly Upwind582.51.0301
Predominantly Downwind555.51.0801
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low688.20.8719
Triple Number AP Medium540.21.1108
Triple Number AP High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Single Number Predominant Upwind581.11.0325
Single Number Predominant Reaching519.91.1540
Single Number Predominant Downwind556.51.0781
Predominant Upwind - Low749.30.8008
Predominant Upwind - Low/Med631.90.9496
Predominant Upwind - Medium565.91.0603
Predominant Upwind - Med/High533.11.1254
Predominant Upwind - High513.61.1682
Predominant Downwind Low763.20.7862
Predominant Downwind Low/Med624.20.9612
Predominant Downwind Medium538.21.1149
Predominant Downwind Med/High482.81.2427
Predominant Downwind High437.11.3728
Predominant Reaching Low676.40.8871
Predominant Reaching Low/Med570.01.0527
Predominant Reaching Medium506.51.1846
Predominant Reaching Med/High466.91.2850
Predominant Reaching High435.61.3773
SA/DSPL Upwind28.47SA/DSPL Downwind47.54
Scoring OptionTODTOT
5-Band Windward/Leeward Low934.50.6420
5-Band Windward/Leeward Low/Med758.60.7909
5-Band Windward/Leeward Medium653.50.9181
5-Band Windward/Leeward Med/High597.51.0041
5-Band Windward/Leeward High560.91.0697
Windward/Leeward 60-40 Low934.90.6418
Windward/Leeward 60-40 Low/Med763.50.7859
Windward/Leeward 60-40 Medium662.90.9052
Windward/Leeward 60-40 Med/High611.70.9808
Windward/Leeward 60-40 High580.71.0333
5-Band AP Low724.40.8283
5-Band AP Low/Med604.80.9921
5-Band AP Medium533.51.1247
5-Band AP Med/High492.61.2179
5-Band AP High464.01.2932
5-Band SF Bay Tour - Low886.70.6767
5-Band SF Bay Tour - Low/Med724.40.8283
5-Band SF Bay Tour - Medium628.20.9551
5-Band SF Bay Tour - Med/High577.21.0396
5-Band SF Bay Tour - High543.31.1043
Chicago-Mac Upwind1.0137
Chicago-Mac All Purpose1.0360
Chicago-Mac Downwind1.0624
Bayview-Mac Cove Island0.9688
Bayview-Mac Shore0.9802
Harvest Moon Regatta475.01.2632
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.01.0170
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance978.2742.0624.3560.6526.6496.8446.7410.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.01.0170
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance978.2742.0624.3560.6526.6496.8446.7410.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance590.0
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance978.2742.0624.3560.6526.6496.8446.7410.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)590.01.0170
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance978.2742.0624.3560.6526.6496.8446.7410.9
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8719
Triple Number Coastal/Long Distance Medium1.1109
Triple Number Coastal/Long Distance High1.2355
Triple Number Windward/Leeward Low0.6800
Triple Number Windward/Leeward Medium0.9047
Triple Number Windward/Leeward High1.0189
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance978.2742.0624.3560.6526.6496.8446.7410.9
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.01.0170
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance978.2742.0624.3560.6526.6496.8446.7410.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.01.0170
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance978.2742.0624.3560.6526.6496.8446.7410.9
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.01.0170
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance978.2742.0624.3560.6526.6496.8446.7410.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low688.2
Triple Number Coastal/Long Distance Medium540.1
Triple Number Coastal/Long Distance High485.6
Triple Number Windward/Leeward Low882.4
Triple Number Windward/Leeward Medium663.2
Triple Number Windward/Leeward High588.9
Predominantly Upwind582.5
Predominantly Downwind555.5
Predominantly Reaching529.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.01.0170
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance978.2742.0624.3560.6526.6496.8446.7410.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8719
Triple Number Coastal/Long Distance Medium1.1109
Triple Number Coastal/Long Distance High1.2355
Triple Number Windward/Leeward Low0.6800
Triple Number Windward/Leeward Medium0.9047
Triple Number Windward/Leeward High1.0189
Coastal/Long Distance1.0170
Predominantly Upwind1.0301
Predominantly Downwind1.0801
For information
General Purpose Handicap (GPH)607.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8719
Tretall Distanseseilas Mellomvind1.1109
Tretall Distanseseilas Mye vind1.2355
Tretall Pølsebane Lite vind0.6800
Tretall Pølsebane Mellomvind0.9047
Tretall Pølsebane Mye vind1.0189
Distanseseilas ett tall (OSN 8-16kn)1.0170
Distanseseilas ett tall (APH 6-20kn)1.1044
Enkeltall Motvind1.0301
Enkeltall Medvind1.0801
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Coastal/Long Distance590.01.0170
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind582.51.0301
Predominantly Downwind555.51.0801
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore530.81.1305
Cape Doctor Coastal441.41.3594
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8719
Triple Number Coastal/Long Distance Medium1.1109
Triple Number Coastal/Long Distance High1.2355
Triple Number Windward/Leeward Low0.6800
Triple Number Windward/Leeward Medium0.9047
Triple Number Windward/Leeward High1.0189
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8719
Triple Number Coastal/Long Distance Medium1.1109
Triple Number Coastal/Long Distance High1.2355
Triple Number Windward/Leeward Low0.6800
Triple Number Windward/Leeward Medium0.9047
Triple Number Windward/Leeward High1.0189
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.01.0170
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Predominantly Upwind582.51.0301
Predominantly Downwind555.51.0801
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance978.2742.0624.3560.6526.6496.8446.7410.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.01.0170
Triple Number Coastal/Long Distance Low688.20.8719
Triple Number Coastal/Long Distance Medium540.11.1109
Triple Number Coastal/Long Distance High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance978.2742.0624.3560.6526.6496.8446.7410.9
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low688.20.8719
Triple Number AP Medium540.21.1108
Triple Number AP High485.61.2355
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High588.91.0189
Single Number Predominant Upwind581.11.0325
Single Number Predominant Reaching519.91.1540
Single Number Predominant Downwind556.51.0781
Predominant Upwind - Low749.30.8008
Predominant Upwind - Low/Med631.90.9496
Predominant Upwind - Medium565.91.0603
Predominant Upwind - Med/High533.11.1254
Predominant Upwind - High513.61.1682
Predominant Downwind Low763.20.7862
Predominant Downwind Low/Med624.20.9612
Predominant Downwind Medium538.21.1149
Predominant Downwind Med/High482.81.2427
Predominant Downwind High437.11.3728
Predominant Reaching Low676.40.8871
Predominant Reaching Low/Med570.01.0527
Predominant Reaching Medium506.51.1846
Predominant Reaching Med/High466.91.2850
Predominant Reaching High435.61.3773
SA/DSPL Upwind28.47SA/DSPL Downwind47.54
Scoring OptionTODTOT
5-Band Windward/Leeward Low934.50.6420
5-Band Windward/Leeward Low/Med758.60.7909
5-Band Windward/Leeward Medium653.50.9181
5-Band Windward/Leeward Med/High597.51.0041
5-Band Windward/Leeward High560.91.0697
Windward/Leeward 60-40 Low934.90.6418
Windward/Leeward 60-40 Low/Med763.50.7859
Windward/Leeward 60-40 Medium662.90.9052
Windward/Leeward 60-40 Med/High611.70.9808
Windward/Leeward 60-40 High580.71.0333
5-Band AP Low724.40.8283
5-Band AP Low/Med604.80.9921
5-Band AP Medium533.51.1247
5-Band AP Med/High492.61.2179
5-Band AP High464.01.2932
5-Band SF Bay Tour - Low886.70.6767
5-Band SF Bay Tour - Low/Med724.40.8283
5-Band SF Bay Tour - Medium628.20.9551
5-Band SF Bay Tour - Med/High577.21.0396
5-Band SF Bay Tour - High543.31.1043
Chicago-Mac Upwind1.0137
Chicago-Mac All Purpose1.0360
Chicago-Mac Downwind1.0624
Bayview-Mac Cove Island0.9688
Bayview-Mac Shore0.9802
Harvest Moon Regatta475.01.2632

Club
Certificate
2024

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 L9.536LSM09.230Acc. length10.570Sink (kg/mm) 16.70
VCGD-0.100VCGM-0.127RM Rated (kg·m) 98.4Limit of positive stability(°) N/AStability IndexN/ADefault crew weight614Declared crew weight500
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 FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunners/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 Date09/09/2021
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

Club
Certificate
2024

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 38.84Jib0.082.024.1512.14YesNo 25.372310140K
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentClass spin15.1412.1013.627.607.9895%87.1224/08/2021Code 013.8011.5012.656.218.2575%69.7615/01/2021