Double HandedClub Certificate2025
YAKITA-513MT
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
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 Angles40.3°40.3°37.9°36.2°35.9°36.1°36.6°37.1°38.9°
Beat VMG2.633.494.044.294.374.404.414.434.32
52°4.025.105.625.916.056.146.206.246.24
60°4.205.255.736.086.276.396.486.566.59
75°4.275.375.896.246.586.796.957.197.34
90°4.355.466.016.516.887.117.458.078.59
110°4.295.496.186.777.197.718.489.7711.01
120°4.205.406.116.757.488.138.7711.0012.43
135°3.855.035.786.407.057.969.6212.1413.83
150°3.144.345.265.856.447.027.8911.7315.04
Run VMG2.733.764.565.175.706.206.8410.1513.02
Gybe Angles142.4°142.4°152.3°160.5°167.6°172.1°136.8°144.3°148.9°
APH ToD:606.4CDL: 6.113APH ToT: 0.9894CertNo:25/1
BOAT
ClassTwister 650DesignerCossuttiBuilderCrack BoatAge date12/2004Series date12/2004Offset file650POGO2.OFFData fileI513MT
HULL
Length Overall6.090 mMaximum Beam3.000 mDraft1.600 mDisplacement1,000 kgDLR6.4475IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight170 kg(declared)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail24.3025.14Headsail Luffed14.7414.74Headsail Flying28.2531.09SymmetricAsymmetric67.8967.89 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail6.07Storm Jib5.09Heavy Weather Jib13.72
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
YAKITA-513MT
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
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 VMG1368.81031.3890.7839.7824.4818.7816.6812.6833.9
52°894.9706.4640.2609.0595.5586.8580.9576.5577.1
60°857.2685.2627.8591.7574.4563.6555.9549.2546.5
75°843.0670.0611.4576.8547.0530.6518.3501.0490.7
90°828.1659.1598.9553.0523.5506.3482.9446.2418.9
110°840.0656.3583.0531.9501.0467.2424.6368.5327.1
120°856.6666.3589.4533.0481.4443.0410.5327.4289.7
135°936.2716.2622.7562.2510.6452.2374.2296.4260.4
150°1146.2829.4684.9615.6558.6512.5456.1307.0239.4
Run VMG1319.0957.7789.0696.8631.3580.3526.6354.5276.5
Selected Courses
Windward / Leeward1343.3994.5839.8768.3727.9699.5671.6583.6555.2
All purpose1029.7786.2684.8631.4597.7571.8543.9486.1463.0
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward742.00.8087
All purpose606.40.9894
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.00.9160
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1402.0990.8796.9701.0636.5593.5550.1455.8427.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6960
Downwind "popa"0.9259
70% up, 30% down "Ilhabela"0.7521
30% up, 70% down "Ilhabela-inverso"0.8424
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Predominantly Upwind668.70.8973
Predominantly Downwind598.91.0018
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low735.50.8157
Triple Number AP Medium609.80.9840
Triple Number AP High529.21.1338
Triple Number Windward/Leeward Low952.70.6298
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Single Number Predominant Upwind683.60.8777
Single Number Predominant Reaching588.21.0201
Single Number Predominant Downwind610.40.9830
Predominant Upwind - Low862.00.6960
Predominant Upwind - Low/Med711.30.8435
Predominant Upwind - Medium655.60.9153
Predominant Upwind - Med/High615.70.9744
Predominant Upwind - High588.01.0204
Predominant Downwind Low846.60.7087
Predominant Downwind Low/Med673.40.8910
Predominant Downwind Medium588.31.0198
Predominant Downwind Med/High498.21.2043
Predominant Downwind High417.91.4356
Predominant Reaching Low769.80.7795
Predominant Reaching Low/Med633.30.9474
Predominant Reaching Medium568.21.0560
Predominant Reaching Med/High503.51.1916
Predominant Reaching High454.11.3212
SA/DSPL Upwind39.04SA/DSPL Downwind92.18
Scoring OptionTODTOT
5-Band Windward/Leeward Low1043.20.5752
5-Band Windward/Leeward Low/Med820.90.7309
5-Band Windward/Leeward Medium734.50.8169
5-Band Windward/Leeward Med/High666.10.9008
5-Band Windward/Leeward High593.91.0103
Windward/Leeward 60-40 Low1050.70.5711
Windward/Leeward 60-40 Low/Med833.40.7199
Windward/Leeward 60-40 Medium753.70.7960
Windward/Leeward 60-40 Med/High696.20.8618
Windward/Leeward 60-40 High638.50.9397
5-Band AP Low792.00.7576
5-Band AP Low/Med668.10.8981
5-Band AP Medium601.80.9970
5-Band AP Med/High543.41.1042
5-Band AP High492.11.2193
5-Band SF Bay Tour - Low916.00.6550
5-Band SF Bay Tour - Low/Med789.50.7599
5-Band SF Bay Tour - Medium709.90.8452
5-Band SF Bay Tour - Med/High645.30.9298
5-Band SF Bay Tour - High583.81.0278
Chicago-Mac Upwind0.8559
Chicago-Mac All Purpose0.9001
Chicago-Mac Downwind0.9427
Bayview-Mac Cove Island0.6983
Bayview-Mac Shore0.7026
Harvest Moon Regatta506.41.1849
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.00.9160
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1402.0990.8796.9701.0636.5593.5550.1455.8427.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.00.9160
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1402.0990.8796.9701.0636.5593.5550.1455.8427.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance655.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1402.0990.8796.9701.0636.5593.5550.1455.8427.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating655.00.9160
FinRating, kevyt tuuli1023.10.9774
FinRating, kova tuuli492.51.0152
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9160
Triple Number Coastal/Long Distance Low0.8157
Triple Number Coastal/Long Distance Medium0.9840
Triple Number Coastal/Long Distance High1.1338
Triple Number Windward/Leeward Low0.6542
Triple Number Windward/Leeward Medium0.8069
Triple Number Windward/Leeward High0.9294
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1402.0990.8796.9701.0636.5593.5550.1455.8427.8
For information
General Purpose Handicap (GPH)670.4
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.00.9160
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1402.0990.8796.9701.0636.5593.5550.1455.8427.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.00.9160
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1402.0990.8796.9701.0636.5593.5550.1455.8427.8
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.00.9160
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1402.0990.8796.9701.0636.5593.5550.1455.8427.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low735.6
Triple Number Coastal/Long Distance Medium609.8
Triple Number Coastal/Long Distance High529.2
Triple Number Windward/Leeward Low917.2
Triple Number Windward/Leeward Medium743.6
Triple Number Windward/Leeward High645.6
Predominantly Upwind668.7
Predominantly Downwind598.9
Predominantly Reaching581.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.00.9160
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1402.0990.8796.9701.0636.5593.5550.1455.8427.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8157
Triple Number Coastal/Long Distance Medium0.9840
Triple Number Coastal/Long Distance High1.1338
Triple Number Windward/Leeward Low0.6542
Triple Number Windward/Leeward Medium0.8069
Triple Number Windward/Leeward High0.9294
Coastal/Long Distance0.9160
Predominantly Upwind0.8973
Predominantly Downwind1.0018
For information
General Purpose Handicap (GPH)670.4
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9894
Distanseseilas Trippeltall svak vind0.8157
Distanseseilas Trippeltall mellomvind0.9840
Distanseseilas Trippeltall sterk vind1.1338
Pølsebane Trippeltall svak vind0.6542
Pølsebane Trippeltall mellomvind0.8069
Pølsebane Trippeltall sterk vind0.9294
Motvind Singeltall0.8973
Medvind Singeltall1.0018
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Coastal/Long Distance655.00.9160
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind668.70.8973
Predominantly Downwind598.91.0018
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore563.71.0644
Cape Doctor Coastal469.91.2768
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8157
Triple Number Coastal/Long Distance Medium0.9840
Triple Number Coastal/Long Distance High1.1338
Triple Number Windward/Leeward Low0.6542
Triple Number Windward/Leeward Medium0.8069
Triple Number Windward/Leeward High0.9294
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8157
Triple Number Coastal/Long Distance Medium0.9840
Triple Number Coastal/Long Distance High1.1338
Triple Number Windward/Leeward Low0.6542
Triple Number Windward/Leeward Medium0.8069
Triple Number Windward/Leeward High0.9294
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.00.9160
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Predominantly Upwind668.70.8973
Predominantly Downwind598.91.0018
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1402.0990.8796.9701.0636.5593.5550.1455.8427.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.00.9160
Triple Number Coastal/Long Distance Low735.60.8157
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.21.1338
Triple Number Windward/Leeward Low917.20.6542
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1402.0990.8796.9701.0636.5593.5550.1455.8427.8
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low735.50.8157
Triple Number AP Medium609.80.9840
Triple Number AP High529.21.1338
Triple Number Windward/Leeward Low952.70.6298
Triple Number Windward/Leeward Medium743.60.8069
Triple Number Windward/Leeward High645.60.9294
Single Number Predominant Upwind683.60.8777
Single Number Predominant Reaching588.21.0201
Single Number Predominant Downwind610.40.9830
Predominant Upwind - Low862.00.6960
Predominant Upwind - Low/Med711.30.8435
Predominant Upwind - Medium655.60.9153
Predominant Upwind - Med/High615.70.9744
Predominant Upwind - High588.01.0204
Predominant Downwind Low846.60.7087
Predominant Downwind Low/Med673.40.8910
Predominant Downwind Medium588.31.0198
Predominant Downwind Med/High498.21.2043
Predominant Downwind High417.91.4356
Predominant Reaching Low769.80.7795
Predominant Reaching Low/Med633.30.9474
Predominant Reaching Medium568.21.0560
Predominant Reaching Med/High503.51.1916
Predominant Reaching High454.11.3212
SA/DSPL Upwind39.04SA/DSPL Downwind92.18
Scoring OptionTODTOT
5-Band Windward/Leeward Low1043.20.5752
5-Band Windward/Leeward Low/Med820.90.7309
5-Band Windward/Leeward Medium734.50.8169
5-Band Windward/Leeward Med/High666.10.9008
5-Band Windward/Leeward High593.91.0103
Windward/Leeward 60-40 Low1050.70.5711
Windward/Leeward 60-40 Low/Med833.40.7199
Windward/Leeward 60-40 Medium753.70.7960
Windward/Leeward 60-40 Med/High696.20.8618
Windward/Leeward 60-40 High638.50.9397
5-Band AP Low792.00.7576
5-Band AP Low/Med668.10.8981
5-Band AP Medium601.80.9970
5-Band AP Med/High543.41.1042
5-Band AP High492.11.2193
5-Band SF Bay Tour - Low916.00.6550
5-Band SF Bay Tour - Low/Med789.50.7599
5-Band SF Bay Tour - Medium709.90.8452
5-Band SF Bay Tour - Med/High645.30.9298
5-Band SF Bay Tour - High583.81.0278
Chicago-Mac Upwind0.8559
Chicago-Mac All Purpose0.9001
Chicago-Mac Downwind0.9427
Bayview-Mac Cove Island0.6983
Bayview-Mac Shore0.7026
Harvest Moon Regatta506.41.1849
Double HandedClub Certificate2025
YAKITA-513MT
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassTwister 650Measurement01/04/1996HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA6.090Max. Beam3.000Draft1.600Displacement1,000Wetted area9.92IMS L5.664LSM05.373Acc. length6.090Sink (kg/mm) 8.86
VCGD-0.280VCGM-0.281RM Rated (kg·m) 51.0Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weight170
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritYesNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1Checkstays1Spreaders2Rotating mastNo
P9.500IG10.000ISP10.010MDT10.080MDL10.120MDT20.070MDL20.070TL1.500MW0.120GO0.140
E3.650J2.500BAS0.500FSDNo FoilSFJ0.050SPLWPLTPS5.000BD0.100MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.280Flotation Date01/01/2013
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
YAKITA-513MT
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA1.431.452.032.673.1324.3020/04/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentB0.241.001.763.284.054.819.90NoYes028.25A0.050.450.851.562.222.829.79YesNo 14.7420/04/2023
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA12.109.8010.957.357.8094%67.8920/04/2023