Club
Certificate
2021

Boat

Double Down

USA 121

 
Offshore
Racing
Congress

Certificate number: US7404
Rated boat velocities in knots
Wind Velocity6 kt8 kt10 kt12 kt14 kt16 kt20 kt
Beat Angles42.0°39.0°37.5°36.4°35.6°35.6°36.8°
Beat VMG4.104.795.065.195.325.385.32
52°6.226.867.067.197.297.477.50
60°6.507.067.317.477.597.797.92
75°6.697.267.737.998.168.288.70
90°6.817.477.958.458.789.019.30
110°6.707.448.299.029.5610.1110.89
120°6.467.368.179.029.9910.7412.01
135°5.806.997.818.809.9910.9413.10
150°4.876.117.027.748.599.7613.07
Run VMG4.225.296.046.717.448.4511.32
Gybe Angles143.0°147.0°152.5°150.0°146.5°143.5°146.1°

GPH = 559.7

CDL = 8.905

BOAT
ClassHenderson 30𝕚DesignerGlen HendersonBuilderSOCAAge Date01/1998Series Date06/1997Offset FileHEN30.OFF
HULL
Length Overall9.388 mMaximum Beam2.993 mDraft2.119 mDisplacement1,742 kgDLR3.3148IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight507 kg𝕚Minimum weight380 kg𝕚* when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRated Mainsail33.6334.91Headsail Luffed27.3227.32Headsail FlyingSymmetricAsymmetric106.42𝕚106.42𝕚
* 1 asymmetric(s) with SHW/SFL < 85%
SAIL LIMITATIONS
Headsails5 Spinnakers4
STABILITY
Righting Moment43.8 kg·mStability IndexN/A
OWNER




The owner certifies that he/she understands his/her responsibilities under ORC Rule and Regulations.
ORC Ref  03880001JEOIssued on 21/08/2021Valid until 31/12/2021
VPP ver: 2021 1.00 | © ORC | www.orc.org

Club
Certificate
2021

Boat

Double Down

USA 121

 
Offshore
Racing
Congress

Certificate number: US7404
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG877.3751.9711.7693.5676.2668.9676.5
52°579.2525.0509.6501.0493.5482.1480.1
60°554.1510.0492.4481.6474.6461.9454.6
75°538.5495.7465.6450.4441.1434.6413.7
90°528.6481.8453.1425.8410.1399.6386.9
110°537.2483.6434.2399.2376.6356.2330.7
120°557.6489.4440.6399.1360.3335.2299.7
135°620.9515.4460.9408.9360.3329.2274.9
150°738.9589.6513.1465.0418.9369.0275.5
Run VMG853.2680.8596.4536.9483.7426.1318.1
Selected Courses
Windward / Leeward865.3716.4654.0615.2579.9547.5497.3
All purpose666.0571.9527.1496.4470.5448.7416.6
Single Number Scoring Options
CourseTime On DistanceTime On Time
Windward / Leeward625.90.9587
All purpose504.61.1889
Custom scoring options for Australia
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Custom scoring options for Austria
Single NumberTime On DistanceTime On Time
Coastal/Long Distance548.51.0940
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance864.1676.7591.7533.0489.7451.1393.0
Custom scoring options for Brazil
Single NumberTime On Time
Upwind "bolina"0.8307
Downwind "popa"1.0783
70% up, 30% down "Ilhabela"0.8921
30% up, 70% down "Ilhabela-inverso"0.9898
Custom scoring options for Bulgaria
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Predominantly Upwind556.81.0776
Predominantly Downwind499.51.2012
Custom scoring options for Canada
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low619.00.9693
Triple Number All Purpose Medium506.51.1847
Triple Number All Purpose High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Predominantly Upwind556.81.0776
Predominantly Downwind499.51.2012
Predominantly Upwind Low686.90.8735
Predominantly Upwind Medium586.51.0230
Predominantly Upwind High555.81.0796
Predominantly Downwind Low672.70.8919
Predominantly Downwind Medium498.61.2033
Predominantly Downwind High383.61.5640
Chicago-Mac Upwind1.0594
Chicago-Mac All Purpose1.1140
Chicago-Mac Downwind1.1763
Bayview-Mac Cove Island1.0551
Bayview-Mac Shore1.0575
Victoria-Maui1.3078
Custom scoring options for Cyprus
Single NumberTime On DistanceTime On Time
Coastal/Long Distance548.51.0940
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance864.1676.7591.7533.0489.7451.1393.0
Custom scoring options for Denmark
Single NumberTime On DistanceTime On Time
Coastal/Long Distance548.51.0940
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance864.1676.7591.7533.0489.7451.1393.0
Custom scoring options for Spain
Single NumberTime On Distance
Coastal/Long Distance548.5
Triple Number Coastal/Long Distance Low619.0
Triple Number Coastal/Long Distance Medium506.5
Triple Number Coastal/Long Distance High442.1
Triple Number Windward/Leeward Low790.8
Triple Number Windward/Leeward Medium627.7
Triple Number Windward/Leeward High536.8
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance864.1676.7591.7533.0489.7451.1393.0
Custom scoring options for Estonia
Single NumberTime On DistanceTime On Time
Coastal/Long Distance548.51.0940
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance864.1676.7591.7533.0489.7451.1393.0
Custom scoring options for Finland
Single NumberTime On DistanceTime On Time
FinRating (Coastal/Long Distance)548.51.0940
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance864.1676.7591.7533.0489.7451.1393.0
Custom scoring options for France
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Custom scoring options for Germany
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.9693
Triple Number Coastal/Long Distance Medium1.1847
Triple Number Coastal/Long Distance High1.3571
Triple Number Windward/Leeward Low0.7587
Triple Number Windward/Leeward Medium0.9558
Triple Number Windward/Leeward High1.1178
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance864.1676.7591.7533.0489.7451.1393.0
Custom scoring options for Greece
Single NumberTime On DistanceTime On Time
Coastal/Long Distance548.51.0940
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance864.1676.7591.7533.0489.7451.1393.0
Custom scoring options for Hungary
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Custom scoring options for Israel
Single NumberTime On DistanceTime On Time
Coastal/Long Distance548.51.0940
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance864.1676.7591.7533.0489.7451.1393.0
Custom scoring options for Italy
Single NumberTime On DistanceTime On Time
Coastal/Long Distance548.51.0940
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance864.1676.7591.7533.0489.7451.1393.0
Custom scoring options for Japan
Single NumberTime On DistanceTime On Time
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance864.1676.7591.7533.0489.7451.1393.0
Custom scoring options for Korea
Single NumberTime On Distance
Triple Number Coastal/Long Distance Low619.0
Triple Number Coastal/Long Distance Medium506.5
Triple Number Coastal/Long Distance High442.1
Triple Number Windward/Leeward Low790.8
Triple Number Windward/Leeward Medium627.7
Triple Number Windward/Leeward High536.8
Predominantly Upwind556.8
Predominantly Downwind499.5
Predominantly Reaching481.0
Custom scoring options for Lithuania
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Custom scoring options for Netherlands
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.9693
Triple Number Coastal/Long Distance Medium1.1847
Triple Number Coastal/Long Distance High1.3571
Triple Number Windward/Leeward Low0.7587
Triple Number Windward/Leeward Medium0.9558
Triple Number Windward/Leeward High1.1178
Coastal/Long Distance1.0940
Predominantly Upwind1.0776
Predominantly Downwind1.2012
Custom scoring options for Norway
Single NumberTime On Time
Distanseseilas (NOR-rating ett tall)1.0940
Tretall Distanseseilas Lite vind0.9693
Tretall Distanseseilas Mellomvind1.1847
Tretall Distanseseilas Mye vind1.3571
Tretall Pølsebane Lite vind0.7587
Tretall Pølsebane Mellomvind0.9558
Tretall Pølsebane Mye vind1.1178
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Distanseseilas864.1676.7591.7533.0489.7451.1393.0
Custom scoring options for Portugal
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Custom scoring options for Russia
Single NumberTime On DistanceTime On Time
Predominantly Upwind556.81.0776
Predominantly Downwind499.51.2012
Custom scoring options for South Africa
Single NumberTime On DistanceTime On Time
Cape Doctor Inshore512.31.1711
Cape Doctor Coastal426.21.4077
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Custom scoring options for Slovenia
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.9693
Triple Number Coastal/Long Distance Medium1.1847
Triple Number Coastal/Long Distance High1.3571
Triple Number Windward/Leeward Low0.7587
Triple Number Windward/Leeward Medium0.9558
Triple Number Windward/Leeward High1.1178
Custom scoring options for Switzerland
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.9693
Triple Number Coastal/Long Distance Medium1.1847
Triple Number Coastal/Long Distance High1.3571
Triple Number Windward/Leeward Low0.7587
Triple Number Windward/Leeward Medium0.9558
Triple Number Windward/Leeward High1.1178
Custom scoring options for Sweden
Single NumberTime On DistanceTime On Time
Coastal/Long Distance548.51.0940
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Predominantly Upwind556.81.0776
Predominantly Downwind499.51.2012
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance864.1676.7591.7533.0489.7451.1393.0
Custom scoring options for Ukraine
Single NumberTime On DistanceTime On Time
Coastal/Long Distance548.51.0940
Triple Number Coastal/Long Distance Low619.00.9693
Triple Number Coastal/Long Distance Medium506.51.1847
Triple Number Coastal/Long Distance High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance864.1676.7591.7533.0489.7451.1393.0
Custom scoring options for United States of America
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low619.00.9693
Triple Number All Purpose Medium506.51.1847
Triple Number All Purpose High442.11.3571
Triple Number Windward/Leeward Low790.80.7587
Triple Number Windward/Leeward Medium627.70.9558
Triple Number Windward/Leeward High536.81.1178
Predominantly Upwind556.81.0776
Predominantly Downwind499.51.2012
Predominantly Upwind Low686.90.8735
Predominantly Upwind Medium586.51.0230
Predominantly Upwind High555.81.0796
Predominantly Downwind Low672.70.8919
Predominantly Downwind Medium498.61.2033
Predominantly Downwind High383.61.5640
Chicago-Mac Upwind1.0594
Chicago-Mac All Purpose1.1140
Chicago-Mac Downwind1.1763
Bayview-Mac Cove Island1.0551
Bayview-Mac Shore1.0575
Harvest Moon Regatta441.21.3600
Victoria-Maui1.3078
ORC Ref  03880001JEOIssued on 21/08/2021Valid until 31/12/2021
VPP ver: 2021 1.00 | © ORC | www.orc.org

Club
Certificate
2021

Boat

Double Down

USA 121

 
Offshore
Racing
Congress

Certificate number: US7404
Data in meters/kilograms (Metric)𝕚
HULL AND APPENDAGES
ClassHenderson 30𝕚Measurement20/11/2014𝕚Measurer𝕚HIN𝕚Plan review𝕚Hull constructionCored𝕚Carbon RudderNo𝕚Light stanchionsNo𝕚Trim tabNo𝕚
LOA9.388𝕚Max. Beam2.993𝕚Draft2.119𝕚Displacement1,742𝕚Wetted area14.65𝕚IMS L8.555𝕚LSM08.069𝕚Acc. length9.388𝕚Sink (kg/mm)11.49𝕚
VCGD-0.156𝕚VCGM-0.101𝕚RM Measured (kg·m)43.8𝕚RM Default (kg·m)52.6𝕚Limit of positive stability(°)N/AStability IndexN/A
PROPELLER
Propeller TypeNo Propeller𝕚PIPA0.0000𝕚
RIG
Forestay tensionAft𝕚Inner stayNone Fitted𝕚Carbon mastYes𝕚Headsail furlerNo𝕚Mainsail furlerNo𝕚Articulated bowspritNo𝕚Non-circular riggingNo𝕚Fiber riggingNo𝕚Runners/Checkstays1𝕚Spreaders2𝕚
P11.711𝕚IG11.309𝕚ISP12.894𝕚MDT10.086𝕚MDL10.147𝕚MDT2𝕚MDL2𝕚TLTaper𝕚MW𝕚GO𝕚
E4.390𝕚J3.353𝕚BAS1.256𝕚FSDFoil𝕚SFJ0.113𝕚SPL𝕚TPS6.200𝕚BD𝕚MWT0.00𝕚MCG0.000𝕚
FLOTATION AND STABILITY
Inclining TestVCG entered directly𝕚SFFP0.489𝕚SAFP8.876𝕚Flotation Date20/11/2014𝕚FFM0.964𝕚FAM0.821𝕚Measurer𝕚FF0.964𝕚FA0.821𝕚Comment𝕚LCFcl5.205𝕚LCFsh5.342𝕚SG1.0240𝕚HBI0.871𝕚
ORC Ref  03880001JEOIssued on 21/08/2021Valid until 31/12/2021
VPP ver: 2021 1.00 | © ORC | www.orc.org

Club
Certificate
2021

Boat

Double Down

USA 121

 
Offshore
Racing
Congress

Certificate number: US7404
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeasurerMeas.DateMakerMaterialComment1𝕚0.21𝕚1.24𝕚2.05𝕚3.20𝕚3.88𝕚33.63𝕚𝕚18/12/2020𝕚𝕚𝕚𝕚
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeasurerMeas.DateMakerMaterialComment1𝕚0.05𝕚1.12𝕚1.91𝕚2.68𝕚3.59𝕚3.34𝕚11.36𝕚No𝕚No𝕚 𝕚27.32𝕚𝕚𝕚𝕚𝕚𝕚Light Med Genoa𝕚0.09𝕚0.52𝕚1.04𝕚2.12𝕚3.27𝕚4.48𝕚11.20𝕚No𝕚No𝕚 𝕚24.41𝕚𝕚18/12/2020𝕚𝕚Unknown𝕚𝕚
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeasurerMeas.DateMakerMaterialCommenta2𝕚14.70𝕚12.64𝕚13.67𝕚9.33𝕚9.39𝕚99%𝕚106.42𝕚𝕚18/12/2020𝕚𝕚𝕚𝕚c0𝕚13.12𝕚11.40𝕚12.26𝕚5.41𝕚7.14𝕚76%𝕚58.81𝕚𝕚18/12/2020𝕚𝕚Unknown𝕚𝕚
ORC Ref  03880001JEOIssued on 21/08/2021Valid until 31/12/2021
VPP ver: 2021 1.00 | © ORC | www.orc.org