Club
Certificate
2024

Boat

SMILIN' BOB

USA 15

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 Angles42.2°38.7°37.9°37.9°38.2°38.7°39.7°41.4°
Beat VMG3.624.184.364.444.494.524.504.35
52°5.436.036.306.496.626.726.806.64
60°5.666.316.666.917.107.267.437.33
75°5.816.657.257.668.008.298.678.77
90°5.726.657.668.358.889.309.9210.34
110°5.886.847.548.269.4410.2611.4212.31
120°5.776.937.918.709.4410.1312.0313.12
135°5.286.407.799.1710.2811.2012.9214.45
150°4.475.586.517.899.3210.8413.8616.16
Run VMG3.874.835.646.838.079.3812.0014.45
Gybe Angles143.3°148.9°141.1°142.0°144.0°145.9°150.2°153.5°
APH ToD:544.8CDL: 6.394APH ToT: 1.1013CertNo:USA15640
BOAT
ClassViper 640DesignerBrian BennettBuilderRondar RaceboatsAge date10/1996Series date01/1996Offset fileViper640.offData fileUSA15-640
HULL
Length Overall6.467 mMaximum Beam2.420 mDraft1.399 mDisplacement319 kgDLR1.8071IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight270 kg(declared)Minimum weight140 kg * when appliedNon Manual PowerNoCrew Arm ExtensionLoose or no lifelines
SAIL AREAS (m²)
MeasuredRatedMainsail15.3115.90Headsail Luffed7.867.86Headsail FlyingSymmetricAsymmetric39.8639.86 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail4.05Storm Jib2.49Heavy Weather Jib6.71
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
friessaildesign@gmail.com
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

SMILIN' BOB

USA 15

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 VMG993.9860.4825.0810.0802.1796.4799.2828.2
52°662.7597.4571.2555.0543.8535.6529.6542.0
60°636.5570.3540.4521.0506.8495.7484.5491.1
75°620.0541.0496.7469.7449.8434.5415.2410.6
90°629.0541.0470.1431.2405.6387.0362.9348.3
110°612.2526.3477.8435.9381.5350.9315.2292.4
120°623.9519.4455.2413.9381.5355.5299.2274.3
135°681.8562.9462.4392.5350.3321.3278.6249.2
150°805.5645.1553.0456.5386.2332.2259.7222.7
Run VMG930.1744.9638.5527.1446.0383.6299.9249.1
Selected Courses
Windward / Leeward962.0802.7731.7668.6624.1590.0549.5538.6
All purpose750.2636.8577.0531.3497.3472.7442.2432.5
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward686.60.8739
All purpose544.81.1013
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance594.91.0086
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance958.8755.9654.4573.9520.3475.8404.4391.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7135
Downwind "popa"1.0579
70% up, 30% down "Ilhabela"0.7907
30% up, 70% down "Ilhabela-inverso"0.9241
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Predominantly Upwind619.20.9690
Predominantly Downwind521.91.1497
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low693.50.8652
Triple Number AP Medium546.91.0972
Triple Number AP High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Single Number Predominant Upwind616.40.9733
Single Number Predominant Reaching506.91.1836
Single Number Predominant Downwind524.01.1451
Predominant Upwind - Low763.10.7863
Predominant Upwind - Low/Med666.60.9000
Predominant Upwind - Medium603.70.9939
Predominant Upwind - Med/High564.11.0637
Predominant Upwind - High548.41.0942
Predominant Downwind Low746.50.8037
Predominant Downwind Low/Med612.40.9798
Predominant Downwind Medium502.51.1940
Predominant Downwind Med/High417.51.4371
Predominant Downwind High370.91.6178
Predominant Reaching Low679.50.8830
Predominant Reaching Low/Med571.91.0492
Predominant Reaching Medium488.91.2273
Predominant Reaching Med/High431.21.3915
Predominant Reaching High401.81.4932
SA/DSPL Upwind49.86SA/DSPL Downwind118.67
Scoring OptionTODTOT
5-Band Windward/Leeward Low925.80.6481
5-Band Windward/Leeward Low/Med781.30.7679
5-Band Windward/Leeward Medium676.40.8870
5-Band Windward/Leeward Med/High595.61.0074
5-Band Windward/Leeward High554.61.0818
Windward/Leeward 60-40 Low933.40.6428
Windward/Leeward 60-40 Low/Med797.10.7527
Windward/Leeward 60-40 Medium704.00.8523
Windward/Leeward 60-40 Med/High636.30.9430
Windward/Leeward 60-40 High604.50.9926
5-Band AP Low724.40.8282
5-Band AP Low/Med616.80.9727
5-Band AP Medium537.11.1170
5-Band AP Med/High476.71.2587
5-Band AP High445.81.3458
5-Band SF Bay Tour - Low881.30.6808
5-Band SF Bay Tour - Low/Med747.90.8022
5-Band SF Bay Tour - Medium653.60.9179
5-Band SF Bay Tour - Med/High584.11.0273
5-Band SF Bay Tour - High549.91.0911
Chicago-Mac Upwind0.9523
Chicago-Mac All Purpose1.0310
Chicago-Mac Downwind1.1205
Bayview-Mac Cove Island0.9633
Bayview-Mac Shore0.9638
Harvest Moon Regatta429.11.3983
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance594.91.0086
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance958.8755.9654.4573.9520.3475.8404.4391.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance594.91.0086
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance958.8755.9654.4573.9520.3475.8404.4391.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance594.9
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance958.8755.9654.4573.9520.3475.8404.4391.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)594.91.0086
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance958.8755.9654.4573.9520.3475.8404.4391.0
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8652
Triple Number Coastal/Long Distance Medium1.0973
Triple Number Coastal/Long Distance High1.2836
Triple Number Windward/Leeward Low0.6800
Triple Number Windward/Leeward Medium0.8700
Triple Number Windward/Leeward High1.0286
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance958.8755.9654.4573.9520.3475.8404.4391.0
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance594.91.0086
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance958.8755.9654.4573.9520.3475.8404.4391.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance594.91.0086
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance958.8755.9654.4573.9520.3475.8404.4391.0
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance594.91.0086
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance958.8755.9654.4573.9520.3475.8404.4391.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low693.5
Triple Number Coastal/Long Distance Medium546.8
Triple Number Coastal/Long Distance High467.4
Triple Number Windward/Leeward Low882.4
Triple Number Windward/Leeward Medium689.7
Triple Number Windward/Leeward High583.3
Predominantly Upwind619.2
Predominantly Downwind521.9
Predominantly Reaching505.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance594.91.0086
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance958.8755.9654.4573.9520.3475.8404.4391.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8652
Triple Number Coastal/Long Distance Medium1.0973
Triple Number Coastal/Long Distance High1.2836
Triple Number Windward/Leeward Low0.6800
Triple Number Windward/Leeward Medium0.8700
Triple Number Windward/Leeward High1.0286
Coastal/Long Distance1.0086
Predominantly Upwind0.9690
Predominantly Downwind1.1497
For information
General Purpose Handicap (GPH)610.0
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8652
Tretall Distanseseilas Mellomvind1.0973
Tretall Distanseseilas Mye vind1.2836
Tretall Pølsebane Lite vind0.6800
Tretall Pølsebane Mellomvind0.8700
Tretall Pølsebane Mye vind1.0286
Distanseseilas ett tall1.1013
Enkeltall Motvind0.9690
Enkeltall Medvind1.1497
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Coastal/Long Distance594.91.0086
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind619.20.9690
Predominantly Downwind521.91.1497
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore541.91.1072
Cape Doctor Coastal435.41.3780
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8652
Triple Number Coastal/Long Distance Medium1.0973
Triple Number Coastal/Long Distance High1.2836
Triple Number Windward/Leeward Low0.6800
Triple Number Windward/Leeward Medium0.8700
Triple Number Windward/Leeward High1.0286
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8652
Triple Number Coastal/Long Distance Medium1.0973
Triple Number Coastal/Long Distance High1.2836
Triple Number Windward/Leeward Low0.6800
Triple Number Windward/Leeward Medium0.8700
Triple Number Windward/Leeward High1.0286
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance594.91.0086
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Predominantly Upwind619.20.9690
Predominantly Downwind521.91.1497
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance958.8755.9654.4573.9520.3475.8404.4391.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance594.91.0086
Triple Number Coastal/Long Distance Low693.50.8652
Triple Number Coastal/Long Distance Medium546.81.0973
Triple Number Coastal/Long Distance High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance958.8755.9654.4573.9520.3475.8404.4391.0
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low693.50.8652
Triple Number AP Medium546.91.0972
Triple Number AP High467.41.2836
Triple Number Windward/Leeward Low882.40.6800
Triple Number Windward/Leeward Medium689.70.8700
Triple Number Windward/Leeward High583.31.0286
Single Number Predominant Upwind616.40.9733
Single Number Predominant Reaching506.91.1836
Single Number Predominant Downwind524.01.1451
Predominant Upwind - Low763.10.7863
Predominant Upwind - Low/Med666.60.9000
Predominant Upwind - Medium603.70.9939
Predominant Upwind - Med/High564.11.0637
Predominant Upwind - High548.41.0942
Predominant Downwind Low746.50.8037
Predominant Downwind Low/Med612.40.9798
Predominant Downwind Medium502.51.1940
Predominant Downwind Med/High417.51.4371
Predominant Downwind High370.91.6178
Predominant Reaching Low679.50.8830
Predominant Reaching Low/Med571.91.0492
Predominant Reaching Medium488.91.2273
Predominant Reaching Med/High431.21.3915
Predominant Reaching High401.81.4932
SA/DSPL Upwind49.86SA/DSPL Downwind118.67
Scoring OptionTODTOT
5-Band Windward/Leeward Low925.80.6481
5-Band Windward/Leeward Low/Med781.30.7679
5-Band Windward/Leeward Medium676.40.8870
5-Band Windward/Leeward Med/High595.61.0074
5-Band Windward/Leeward High554.61.0818
Windward/Leeward 60-40 Low933.40.6428
Windward/Leeward 60-40 Low/Med797.10.7527
Windward/Leeward 60-40 Medium704.00.8523
Windward/Leeward 60-40 Med/High636.30.9430
Windward/Leeward 60-40 High604.50.9926
5-Band AP Low724.40.8282
5-Band AP Low/Med616.80.9727
5-Band AP Medium537.11.1170
5-Band AP Med/High476.71.2587
5-Band AP High445.81.3458
5-Band SF Bay Tour - Low881.30.6808
5-Band SF Bay Tour - Low/Med747.90.8022
5-Band SF Bay Tour - Medium653.60.9179
5-Band SF Bay Tour - Med/High584.11.0273
5-Band SF Bay Tour - High549.91.0911
Chicago-Mac Upwind0.9523
Chicago-Mac All Purpose1.0310
Chicago-Mac Downwind1.1205
Bayview-Mac Cove Island0.9633
Bayview-Mac Shore0.9638
Harvest Moon Regatta429.11.3983

Club
Certificate
2024

Boat

SMILIN' BOB

USA 15

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassViper 640MeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA6.467Max. Beam2.420Draft1.399Displacement319Wetted area5.96IMS L5.991LSM05.608Acc. length6.467Sink (kg/mm) 4.94
VCGD-0.500VCGM-0.424RM Rated (kg·m) 9.0Limit of positive stability(°) N/AStability IndexN/ADefault crew weight159Declared crew weight270
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionFixedInner stayNone FittedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunners/Checkstays0Spreaders1Rotating mastNo
P7.830IG7.048ISP7.840MDT10.060MDL10.080MDT20.055MDL20.060TL1.200MW0.080GO0.080
E2.950J2.400BAS0.796FSDNo FoilSFJSPLWPLTPS4.200BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.500Flotation Date09/03/2021
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

Club
Certificate
2024

Boat

SMILIN' BOB

USA 15

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain0.310.921.412.112.6415.3110/06/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJib0.050.350.641.151.682.206.87YesNo 7.8610/06/2023
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentspi9.727.608.665.505.6298%39.8610/06/2023