Double HandedClub Certificate2025
TUMBLERUSA 55
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Rated boat velocities in knots
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles42.7°42.7°40.8°39.3°38.2°37.9°38.3°38.8°40.8°
Beat VMG2.553.534.294.785.005.095.145.165.00
52°3.945.336.326.857.097.197.247.297.25
60°4.195.596.547.047.277.397.467.537.49
75°4.365.776.687.177.467.667.797.948.00
90°4.345.846.847.247.507.788.028.358.54
110°4.476.017.057.587.958.208.438.849.19
120°4.355.896.987.568.028.458.799.3910.00
135°3.835.346.537.267.778.268.8010.2312.05
150°3.184.515.666.617.257.698.129.0811.40
Run VMG2.753.904.905.736.316.747.127.869.87
Gybe Angles143.3°143.3°147.4°150.4°153.1°157.0°159.7°148.5°142.6°
APH ToD:547.6CDL: 9.003APH ToT: 1.0956CertNo:US55109
BOAT
ClassJ 109DesignerJOHNSTONEBuilderTPIAge dateSeries date01/2004Offset fileJ109.offData fileUS55109
HULL
Length Overall10.757 mMaximum Beam3.524 mDraft2.127 mDisplacement4,827 kgDLR6.1531IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedNon Manual PowerCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail37.1737.96Headsail Luffed28.9828.98Headsail FlyingSymmetricAsymmetric107.63107.63 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail10.98Storm Jib10.18Heavy Weather Jib27.47
SAIL LIMITS
Headsails5
✱ One set on the forestay
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.
Double HandedClub Certificate2025
TUMBLERUSA 55
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Time Allowances in secs/NM
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1412.01020.7839.1753.9720.5706.7700.0698.1719.9
52°913.3675.2570.1525.3508.1501.0496.9493.5496.7
60°859.8643.5550.6511.7495.0487.3482.8478.2480.5
75°825.2623.4538.7502.0482.5470.2462.3453.5450.0
90°830.0616.3526.0497.1479.7462.5449.1431.1421.5
110°806.0599.4510.5474.8452.9439.1427.3407.1391.8
120°828.2611.0515.8476.3448.8426.2409.6383.5360.0
135°941.0674.6551.4495.7463.4435.6409.2351.9298.7
150°1132.0798.8636.0544.5496.7468.1443.5396.5315.8
Run VMG1307.6922.4734.4628.5570.2534.4505.8457.9364.6
Selected Courses
Windward / Leeward1359.6971.5786.8691.2645.4620.5602.9578.0542.3
All purpose1035.5752.4622.4561.4531.1512.4498.5476.8455.0
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward672.40.8923
All purpose547.61.0956
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance593.81.0104
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1432.9966.6740.8627.2565.7531.4502.9456.9434.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7722
Downwind "popa"0.9647
70% up, 30% down "Ilhabela"0.8214
30% up, 70% down "Ilhabela-inverso"0.8976
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Predominantly Upwind595.61.0074
Predominantly Downwind548.41.0942
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low687.40.8728
Triple Number AP Medium544.21.1026
Triple Number AP High493.81.2150
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Single Number Predominant Upwind619.60.9683
Single Number Predominant Reaching542.41.1062
Single Number Predominant Downwind570.01.0527
Predominant Upwind - Low837.20.7167
Predominant Upwind - Low/Med645.90.9289
Predominant Upwind - Medium579.01.0363
Predominant Upwind - Med/High547.31.0962
Predominant Upwind - High532.61.1266
Predominant Downwind Low813.30.7377
Predominant Downwind Low/Med612.20.9801
Predominant Downwind Medium532.31.1273
Predominant Downwind Med/High480.11.2498
Predominant Downwind High439.41.3656
Predominant Reaching Low735.90.8153
Predominant Reaching Low/Med571.21.0504
Predominant Reaching Medium511.11.1739
Predominant Reaching Med/High472.21.2706
Predominant Reaching High444.31.3504
SA/DSPL Upwind23.04SA/DSPL Downwind50.43
Scoring OptionTODTOT
5-Band Windward/Leeward Low1022.40.5869
5-Band Windward/Leeward Low/Med759.40.7901
5-Band Windward/Leeward Medium657.00.9132
5-Band Windward/Leeward Med/High605.20.9913
5-Band Windward/Leeward High576.11.0415
Windward/Leeward 60-40 Low1032.50.5811
Windward/Leeward 60-40 Low/Med771.20.7780
Windward/Leeward 60-40 Medium672.00.8929
Windward/Leeward 60-40 Med/High624.70.9605
Windward/Leeward 60-40 High601.30.9978
5-Band AP Low755.00.7947
5-Band AP Low/Med606.60.9892
5-Band AP Medium537.81.1156
5-Band AP Med/High499.91.2002
5-Band AP High476.81.2584
5-Band SF Bay Tour - Low885.10.6779
5-Band SF Bay Tour - Low/Med727.60.8246
5-Band SF Bay Tour - Medium634.20.9461
5-Band SF Bay Tour - Med/High586.81.0225
5-Band SF Bay Tour - High560.01.0714
Chicago-Mac Upwind0.9421
Chicago-Mac All Purpose0.9809
Chicago-Mac Downwind1.0171
Bayview-Mac Cove Island0.7290
Bayview-Mac Shore0.7332
Harvest Moon Regatta476.61.2588
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance593.81.0104
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1432.9966.6740.8627.2565.7531.4502.9456.9434.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance593.81.0104
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1432.9966.6740.8627.2565.7531.4502.9456.9434.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance593.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1432.9966.6740.8627.2565.7531.4502.9456.9434.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating593.81.0104
FinRating, kevyt tuuli1003.10.9969
FinRating, kova tuuli478.61.0447
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0104
Triple Number Coastal/Long Distance Low0.8728
Triple Number Coastal/Long Distance Medium1.1027
Triple Number Coastal/Long Distance High1.2150
Triple Number Windward/Leeward Low0.6825
Triple Number Windward/Leeward Medium0.9006
Triple Number Windward/Leeward High1.0034
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1432.9966.6740.8627.2565.7531.4502.9456.9434.4
For information
General Purpose Handicap (GPH)611.1
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance593.81.0104
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1432.9966.6740.8627.2565.7531.4502.9456.9434.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance593.81.0104
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1432.9966.6740.8627.2565.7531.4502.9456.9434.4
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance593.81.0104
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1432.9966.6740.8627.2565.7531.4502.9456.9434.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low687.4
Triple Number Coastal/Long Distance Medium544.1
Triple Number Coastal/Long Distance High493.8
Triple Number Windward/Leeward Low879.1
Triple Number Windward/Leeward Medium666.2
Triple Number Windward/Leeward High598.0
Predominantly Upwind595.6
Predominantly Downwind548.4
Predominantly Reaching529.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance593.81.0104
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1432.9966.6740.8627.2565.7531.4502.9456.9434.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8728
Triple Number Coastal/Long Distance Medium1.1027
Triple Number Coastal/Long Distance High1.2150
Triple Number Windward/Leeward Low0.6825
Triple Number Windward/Leeward Medium0.9006
Triple Number Windward/Leeward High1.0034
Coastal/Long Distance1.0104
Predominantly Upwind1.0074
Predominantly Downwind1.0942
For information
General Purpose Handicap (GPH)611.1
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0956
Distanseseilas Trippeltall svak vind0.8728
Distanseseilas Trippeltall mellomvind1.1027
Distanseseilas Trippeltall sterk vind1.2150
Pølsebane Trippeltall svak vind0.6825
Pølsebane Trippeltall mellomvind0.9006
Pølsebane Trippeltall sterk vind1.0034
Motvind Singeltall1.0074
Medvind Singeltall1.0942
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Coastal/Long Distance593.81.0104
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind595.61.0074
Predominantly Downwind548.41.0942
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore553.01.0850
Cape Doctor Coastal461.61.2999
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8728
Triple Number Coastal/Long Distance Medium1.1027
Triple Number Coastal/Long Distance High1.2150
Triple Number Windward/Leeward Low0.6825
Triple Number Windward/Leeward Medium0.9006
Triple Number Windward/Leeward High1.0034
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8728
Triple Number Coastal/Long Distance Medium1.1027
Triple Number Coastal/Long Distance High1.2150
Triple Number Windward/Leeward Low0.6825
Triple Number Windward/Leeward Medium0.9006
Triple Number Windward/Leeward High1.0034
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance593.81.0104
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Predominantly Upwind595.61.0074
Predominantly Downwind548.41.0942
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1432.9966.6740.8627.2565.7531.4502.9456.9434.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance593.81.0104
Triple Number Coastal/Long Distance Low687.40.8728
Triple Number Coastal/Long Distance Medium544.11.1027
Triple Number Coastal/Long Distance High493.81.2150
Triple Number Windward/Leeward Low879.10.6825
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1432.9966.6740.8627.2565.7531.4502.9456.9434.4
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low687.40.8728
Triple Number AP Medium544.21.1026
Triple Number AP High493.81.2150
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium666.20.9006
Triple Number Windward/Leeward High598.01.0034
Single Number Predominant Upwind619.60.9683
Single Number Predominant Reaching542.41.1062
Single Number Predominant Downwind570.01.0527
Predominant Upwind - Low837.20.7167
Predominant Upwind - Low/Med645.90.9289
Predominant Upwind - Medium579.01.0363
Predominant Upwind - Med/High547.31.0962
Predominant Upwind - High532.61.1266
Predominant Downwind Low813.30.7377
Predominant Downwind Low/Med612.20.9801
Predominant Downwind Medium532.31.1273
Predominant Downwind Med/High480.11.2498
Predominant Downwind High439.41.3656
Predominant Reaching Low735.90.8153
Predominant Reaching Low/Med571.21.0504
Predominant Reaching Medium511.11.1739
Predominant Reaching Med/High472.21.2706
Predominant Reaching High444.31.3504
SA/DSPL Upwind23.04SA/DSPL Downwind50.43
Scoring OptionTODTOT
5-Band Windward/Leeward Low1022.40.5869
5-Band Windward/Leeward Low/Med759.40.7901
5-Band Windward/Leeward Medium657.00.9132
5-Band Windward/Leeward Med/High605.20.9913
5-Band Windward/Leeward High576.11.0415
Windward/Leeward 60-40 Low1032.50.5811
Windward/Leeward 60-40 Low/Med771.20.7780
Windward/Leeward 60-40 Medium672.00.8929
Windward/Leeward 60-40 Med/High624.70.9605
Windward/Leeward 60-40 High601.30.9978
5-Band AP Low755.00.7947
5-Band AP Low/Med606.60.9892
5-Band AP Medium537.81.1156
5-Band AP Med/High499.91.2002
5-Band AP High476.81.2584
5-Band SF Bay Tour - Low885.10.6779
5-Band SF Bay Tour - Low/Med727.60.8246
5-Band SF Bay Tour - Medium634.20.9461
5-Band SF Bay Tour - Med/High586.81.0225
5-Band SF Bay Tour - High560.01.0714
Chicago-Mac Upwind0.9421
Chicago-Mac All Purpose0.9809
Chicago-Mac Downwind1.0171
Bayview-Mac Cove Island0.7290
Bayview-Mac Shore0.7332
Harvest Moon Regatta476.61.2588
Double HandedClub Certificate2025
TUMBLERUSA 55
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ 109MeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.757Max. Beam3.524Draft2.127Displacement4,827Wetted area24.27IMS L9.415LSM09.222Acc. length10.757Sink (kg/mm) 17.86
VCGD-0.149VCGM-0.166RM Rated (kg·m) 129.0Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBW0.105PIPA0.0031
EDL1.940ST10.048ST20.170
ST30.170ST40.097ST50.295
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P13.200IG14.200ISP15.000MDT10.103MDL10.190MDT20.100MDL20.145TL0.650MW0.153GO0.171
E4.750J4.050BAS1.650FSD0.030SFJ0.000SPLWPLTPS5.900BD0.161MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered129.0Flotation Date29/10/2024
BALLAST
TANKS
IdDescriptionCapacityLCGVCGSp.WghtLevel
Sailing
#Fuel Centerline858.100.000.8400
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG#Fuel CenterlineFuel858.100.00Total deductible
Total deductible
Double HandedClub Certificate2025
TUMBLERUSA 55
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMN1-180.151.001.753.073.9737.1715/05/2018OUS125116-01
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJLM-180.050.551.052.073.144.2213.80YesNo 28.9815/05/2018OUS125116-02
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA1.5-1817.2013.7215.468.308.5797%107.6315/05/2018OUS125116-003