Double HandedClub Certificate2025
T-timeNED 7T
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 Angles45.0°45.0°43.4°43.0°42.7°43.8°46.6°50.3°54.0°
Beat VMG1.892.603.153.483.603.583.523.353.11
52°3.014.054.795.235.435.475.471.735.05
60°3.274.345.045.445.665.755.795.815.73
75°3.424.525.225.635.936.166.286.406.43
90°3.544.705.475.906.156.366.657.007.21
110°3.554.725.516.016.476.917.247.808.46
120°3.384.565.395.906.386.897.498.8210.23
135°2.954.074.945.616.086.547.109.0412.43
150°2.393.464.425.185.736.166.607.8010.89
Run VMG2.062.993.844.575.195.666.066.929.43
Gybe Angles149.2°149.2°153.7°160.4°166.7°175.3°176.6°168.5°142.0°
APH ToD:714.5CDL: 5.020APH ToT: 0.8397CertNo:28633
BOAT
ClassTirionDesignerJ. de RidderBuilderKD PolyesterbouwAge date01/1994Series date01/1994Offset filejr550.offData fileNED7T
HULL
Length Overall6.250 mMaximum Beam2.360 mDraft0.883 mDisplacement702 kgDLR4.8086IMS DivisionSportboatDynamic Allowance0.230%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail14.4715.11Headsail Luffed5.845.84Headsail FlyingSymmetric22.6822.68Asymmetric
STORM SAIL AREAS (m²)
Trysail4.00Storm Jib1.93Heavy Weather Jib5.19
SAIL LIMITS
Headsails5Spinnakers4
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
T-timeNED 7T
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 VMG1903.81382.41143.31035.91000.31005.61023.91075.21158.5
52°1197.4888.2751.4688.2662.9657.6658.12084.2713.3
60°1099.6829.8714.8661.3635.6626.5622.3620.0628.8
75°1052.5796.6689.2639.5607.0584.8573.4562.7560.1
90°1017.9765.7657.9609.7585.2566.4541.7514.2499.0
110°1015.2762.7653.9599.3556.1521.3497.0461.5425.6
120°1066.0790.2668.5609.9564.3522.5480.9408.1351.9
135°1219.0885.6728.1641.2592.5550.2506.9398.4289.6
150°1506.31041.0814.6694.9628.3584.3545.1461.4330.6
Run VMG1743.71202.1936.8787.9693.1636.1594.1520.3381.8
Selected Courses
Windward / Leeward1821.91292.21040.0911.9846.7820.9809.0797.8770.1
All purpose1356.7986.0814.9730.4686.2663.1647.0689.3599.4
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward890.00.6742
All purpose714.50.8397
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance774.10.7751
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1922.41283.2974.8821.6736.8690.5647.8565.6532.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.5478
Downwind "popa"0.7821
70% up, 30% down "Ilhabela"0.6019
30% up, 70% down "Ilhabela-inverso"0.6931
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Predominantly Upwind790.60.7589
Predominantly Downwind697.60.8601
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low900.50.6663
Triple Number AP Medium706.00.8499
Triple Number AP High666.90.8997
Triple Number Windward/Leeward Low1219.10.4922
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Single Number Predominant Upwind863.50.6948
Single Number Predominant Reaching712.30.8424
Single Number Predominant Downwind737.90.8132
Predominant Upwind - Low1105.80.5426
Predominant Upwind - Low/Med853.50.7030
Predominant Upwind - Medium766.50.7827
Predominant Upwind - Med/High821.40.7305
Predominant Upwind - High1051.90.5704
Predominant Downwind Low1061.80.5651
Predominant Downwind Low/Med789.60.7598
Predominant Downwind Medium674.90.8891
Predominant Downwind Med/High625.60.9591
Predominant Downwind High638.30.9400
Predominant Reaching Low950.50.6312
Predominant Reaching Low/Med734.80.8166
Predominant Reaching Medium650.70.9220
Predominant Reaching Med/High640.80.9363
Predominant Reaching High723.00.8299
SA/DSPL Upwind25.75SA/DSPL Downwind47.10
Scoring OptionTODTOT
5-Band Windward/Leeward Low1362.10.4405
5-Band Windward/Leeward Low/Med1003.50.5979
5-Band Windward/Leeward Medium866.20.6926
5-Band Windward/Leeward Med/High812.20.7387
5-Band Windward/Leeward High794.90.7548
Windward/Leeward 60-40 Low1380.30.4347
Windward/Leeward 60-40 Low/Med1026.70.5844
Windward/Leeward 60-40 Medium897.20.6688
Windward/Leeward 60-40 Med/High855.30.7015
Windward/Leeward 60-40 High852.10.7041
5-Band AP Low981.80.6111
5-Band AP Low/Med791.30.7583
5-Band AP Medium697.20.8606
5-Band AP Med/High660.40.9085
5-Band AP High666.50.9003
5-Band SF Bay Tour - Low1177.80.5094
5-Band SF Bay Tour - Low/Med965.90.6212
5-Band SF Bay Tour - Medium842.80.7119
5-Band SF Bay Tour - Med/High798.30.7516
5-Band SF Bay Tour - High792.00.7576
Chicago-Mac Upwind0.6906
Chicago-Mac All Purpose0.7413
Chicago-Mac Downwind0.7883
Bayview-Mac Cove Island0.5526
Bayview-Mac Shore0.5567
Harvest Moon Regatta588.01.0204
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance774.10.7751
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1922.41283.2974.8821.6736.8690.5647.8565.6532.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance774.10.7751
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1922.41283.2974.8821.6736.8690.5647.8565.6532.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance774.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1922.41283.2974.8821.6736.8690.5647.8565.6532.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)774.10.7751
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1922.41283.2974.8821.6736.8690.5647.8565.6532.1
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7751
Triple Number Coastal/Long Distance Low0.6663
Triple Number Coastal/Long Distance Medium0.8500
Triple Number Coastal/Long Distance High0.8997
Triple Number Windward/Leeward Low0.5145
Triple Number Windward/Leeward Medium0.6833
Triple Number Windward/Leeward High0.7428
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1922.41283.2974.8821.6736.8690.5647.8565.6532.1
For information
General Purpose Handicap (GPH)796.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance774.10.7751
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1922.41283.2974.8821.6736.8690.5647.8565.6532.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance774.10.7751
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1922.41283.2974.8821.6736.8690.5647.8565.6532.1
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance774.10.7751
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1922.41283.2974.8821.6736.8690.5647.8565.6532.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low900.5
Triple Number Coastal/Long Distance Medium705.9
Triple Number Coastal/Long Distance High666.9
Triple Number Windward/Leeward Low1166.2
Triple Number Windward/Leeward Medium878.1
Triple Number Windward/Leeward High807.8
Predominantly Upwind790.6
Predominantly Downwind697.6
Predominantly Reaching673.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance774.10.7751
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1922.41283.2974.8821.6736.8690.5647.8565.6532.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6663
Triple Number Coastal/Long Distance Medium0.8500
Triple Number Coastal/Long Distance High0.8997
Triple Number Windward/Leeward Low0.5145
Triple Number Windward/Leeward Medium0.6833
Triple Number Windward/Leeward High0.7428
Coastal/Long Distance0.7751
Predominantly Upwind0.7589
Predominantly Downwind0.8601
For information
General Purpose Handicap (GPH)796.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8397
Distanseseilas Trippeltall svak vind0.6663
Distanseseilas Trippeltall mellomvind0.8500
Distanseseilas Trippeltall sterk vind0.8997
Pølsebane Trippeltall svak vind0.5145
Pølsebane Trippeltall mellomvind0.6833
Pølsebane Trippeltall sterk vind0.7428
Motvind Singeltall0.7589
Medvind Singeltall0.8601
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Coastal/Long Distance774.10.7751
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind790.60.7589
Predominantly Downwind697.60.8601
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore778.40.7708
Cape Doctor Coastal626.40.9578
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6663
Triple Number Coastal/Long Distance Medium0.8500
Triple Number Coastal/Long Distance High0.8997
Triple Number Windward/Leeward Low0.5145
Triple Number Windward/Leeward Medium0.6833
Triple Number Windward/Leeward High0.7428
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6663
Triple Number Coastal/Long Distance Medium0.8500
Triple Number Coastal/Long Distance High0.8997
Triple Number Windward/Leeward Low0.5145
Triple Number Windward/Leeward Medium0.6833
Triple Number Windward/Leeward High0.7428
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance774.10.7751
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Predominantly Upwind790.60.7589
Predominantly Downwind697.60.8601
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1922.41283.2974.8821.6736.8690.5647.8565.6532.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance774.10.7751
Triple Number Coastal/Long Distance Low900.50.6663
Triple Number Coastal/Long Distance Medium705.90.8500
Triple Number Coastal/Long Distance High666.90.8997
Triple Number Windward/Leeward Low1166.20.5145
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1922.41283.2974.8821.6736.8690.5647.8565.6532.1
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low900.50.6663
Triple Number AP Medium706.00.8499
Triple Number AP High666.90.8997
Triple Number Windward/Leeward Low1219.10.4922
Triple Number Windward/Leeward Medium878.10.6833
Triple Number Windward/Leeward High807.80.7428
Single Number Predominant Upwind863.50.6948
Single Number Predominant Reaching712.30.8424
Single Number Predominant Downwind737.90.8132
Predominant Upwind - Low1105.80.5426
Predominant Upwind - Low/Med853.50.7030
Predominant Upwind - Medium766.50.7827
Predominant Upwind - Med/High821.40.7305
Predominant Upwind - High1051.90.5704
Predominant Downwind Low1061.80.5651
Predominant Downwind Low/Med789.60.7598
Predominant Downwind Medium674.90.8891
Predominant Downwind Med/High625.60.9591
Predominant Downwind High638.30.9400
Predominant Reaching Low950.50.6312
Predominant Reaching Low/Med734.80.8166
Predominant Reaching Medium650.70.9220
Predominant Reaching Med/High640.80.9363
Predominant Reaching High723.00.8299
SA/DSPL Upwind25.75SA/DSPL Downwind47.10
Scoring OptionTODTOT
5-Band Windward/Leeward Low1362.10.4405
5-Band Windward/Leeward Low/Med1003.50.5979
5-Band Windward/Leeward Medium866.20.6926
5-Band Windward/Leeward Med/High812.20.7387
5-Band Windward/Leeward High794.90.7548
Windward/Leeward 60-40 Low1380.30.4347
Windward/Leeward 60-40 Low/Med1026.70.5844
Windward/Leeward 60-40 Medium897.20.6688
Windward/Leeward 60-40 Med/High855.30.7015
Windward/Leeward 60-40 High852.10.7041
5-Band AP Low981.80.6111
5-Band AP Low/Med791.30.7583
5-Band AP Medium697.20.8606
5-Band AP Med/High660.40.9085
5-Band AP High666.50.9003
5-Band SF Bay Tour - Low1177.80.5094
5-Band SF Bay Tour - Low/Med965.90.6212
5-Band SF Bay Tour - Medium842.80.7119
5-Band SF Bay Tour - Med/High798.30.7516
5-Band SF Bay Tour - High792.00.7576
Chicago-Mac Upwind0.6906
Chicago-Mac All Purpose0.7413
Chicago-Mac Downwind0.7883
Bayview-Mac Cove Island0.5526
Bayview-Mac Shore0.5567
Harvest Moon Regatta588.01.0204
Double HandedClub Certificate2025
T-timeNED 7T
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassTirionMeasurement19/06/2012HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA6.250Max. Beam2.360Draft0.883Displacement702Wetted area8.15IMS L5.582LSM05.264Acc. length6.250Sink (kg/mm) 6.88
VCGD0.121VCGM0.139RM Rated (kg·m) 17.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P7.250IG6.200ISP6.450MDT10.064MDL10.090MDT2MDL2TLTaperMWGO
E3.150J1.755BAS1.000FSDNo FoilSFJ0.110SPL2.580WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date06/02/2024CommentBB motor aan spiegel bij meting
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
T-timeNED 7T
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentORC0.130.801.372.202.7514.47* Copied from legacy *
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC0.050.280.520.971.421.816.12YesNo 5.8425/09/2013* Copied from legacy *
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment20246.756.756.754.063.9222.68
CRUISER/RACER REQUIREMENTS*
Accommodation length6.2 mTable area0.22 m²Headroom1.40 mMinimum number of berths2Personal gear stowage0.08 m³Fresh water capacity2 lMinimum number of seats in cockpit2Food stowage0.12 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.