Club
Certificate
2023

Boat

TWINS TWICE

ITA-77477

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles43.2°41.2°39.6°38.8°38.2°38.2°38.2°
Beat VMG3.804.665.225.485.625.695.74
52°5.826.937.577.857.998.078.15
60°6.157.217.808.098.238.328.42
75°6.387.397.978.328.578.738.93
90°6.267.447.988.368.719.039.46
110°6.367.618.298.769.089.379.88
120°6.207.498.228.799.329.7810.49
135°5.536.917.848.449.029.6211.11
150°4.665.906.997.798.268.669.51
Run VMG4.045.116.056.747.157.568.47
Gybe Angles143.0°146.6°148.3°150.1°150.1°171.2°174.8°

APH: 502.0

CDL: 11.082

GPH: 563.0

CertNo: 23/2

BOAT
ClassDehler 42DesignerJudel/VrolijkBuilderDehler YachtsAge date01/2019Series date01/2016Offset fileDEHLER42-ITA77477.offData fileI77477
HULL
Length Overall12.382 mMaximum Beam3.924 mDraft2.375 mDisplacement8,021 kgDLR5.0645IMS DivisionCruiser/RacerDynamic Allowance0.130%Age Allowance0.228%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.460m
CREW
Maximum weight800 kgMinimum weight600 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail57.0158.29Headsail Luffed45.8545.85Headsail FlyingSymmetricAsymmetric159.72159.72 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail16.35Storm Jib14.34Heavy Weather Jib38.70
SAIL LIMITS
Headsails6  Spinnakers5
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.
ORC Ref  03190002SMDIssued on 25/09/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

TWINS TWICE

ITA-77477

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG947.1772.5689.3656.5640.8632.3627.6
52°618.1519.4475.3458.3450.7446.2441.9
60°585.2499.4461.3444.8437.3432.5427.4
75°564.6486.9451.9432.7419.9412.3403.3
90°575.5483.7450.9430.8413.1398.6380.5
110°566.0473.0434.5411.1396.4384.3364.2
120°580.7480.7437.7409.7386.1368.2343.1
135°650.9521.1459.1426.5399.3374.4324.1
150°772.4609.8515.2462.3435.8415.8378.4
Run VMG891.9704.1594.9533.7503.2476.0425.1
Selected Courses
Windward / Leeward919.5738.3642.1595.1572.0554.2526.3
All purpose707.0578.6516.1484.8466.5452.6431.5
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward622.90.9632
All purpose502.01.1953
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance546.51.0979
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance916.7694.3580.1517.6484.2456.4411.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8457
Downwind "popa"1.0172
70% up, 30% down "Ilhabela"0.8908
30% up, 70% down "Ilhabela-inverso"0.9589
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Predominantly Upwind544.01.1029
Predominantly Downwind508.31.1805
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low642.80.9334
Triple Number All Purpose Medium498.51.2037
Triple Number All Purpose High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Predominantly Upwind544.01.1029
Predominantly Downwind508.31.1805
Predominantly Upwind Low718.60.8350
Predominantly Upwind Medium562.51.0667
Predominantly Upwind High526.61.1394
Predominantly Downwind Low700.00.8572
Predominantly Downwind Medium504.71.1889
Predominantly Downwind High426.01.4085
Chicago-Mac Upwind1.0836
Chicago-Mac All Purpose1.1187
Chicago-Mac Downwind1.1604
Bayview-Mac Cove Island1.0412
Bayview-Mac Shore1.0506
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching475.31.2624
Predominantly Reaching Low581.61.0317
Predominantly Reaching Medium470.41.2756
Predominantly Reaching High412.11.4559
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low905.50.6626
5-Band Low / Medium757.50.7920
5-Band Medium607.60.9875
5-Band Medium / High555.91.0793
5-Band High531.21.1296
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance546.51.0979
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance916.7694.3580.1517.6484.2456.4411.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance546.51.0979
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance916.7694.3580.1517.6484.2456.4411.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance546.5
Triple Number Coastal/Long Distance Low642.8
Triple Number Coastal/Long Distance Medium498.5
Triple Number Coastal/Long Distance High448.2
Triple Number Windward/Leeward Low828.8
Triple Number Windward/Leeward Medium617.0
Triple Number Windward/Leeward High548.2
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance916.7694.3580.1517.6484.2456.4411.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance546.51.0979
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance916.7694.3580.1517.6484.2456.4411.8
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)546.51.0979
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance916.7694.3580.1517.6484.2456.4411.8
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9334
Triple Number Coastal/Long Distance Medium1.2037
Triple Number Coastal/Long Distance High1.3388
Triple Number Windward/Leeward Low0.7239
Triple Number Windward/Leeward Medium0.9725
Triple Number Windward/Leeward High1.0945
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance916.7694.3580.1517.6484.2456.4411.8
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance546.51.0979
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance916.7694.3580.1517.6484.2456.4411.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance546.51.0979
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance916.7694.3580.1517.6484.2456.4411.8
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance916.7694.3580.1517.6484.2456.4411.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low642.8
Triple Number Coastal/Long Distance Medium498.5
Triple Number Coastal/Long Distance High448.2
Triple Number Windward/Leeward Low828.8
Triple Number Windward/Leeward Medium617.0
Triple Number Windward/Leeward High548.2
Predominantly Upwind544.0
Predominantly Downwind508.3
Predominantly Reaching486.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance546.51.0979
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance916.7694.3580.1517.6484.2456.4411.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9334
Triple Number Coastal/Long Distance Medium1.2037
Triple Number Coastal/Long Distance High1.3388
Triple Number Windward/Leeward Low0.7239
Triple Number Windward/Leeward Medium0.9725
Triple Number Windward/Leeward High1.0945
Coastal/Long Distance1.0979
Predominantly Upwind1.1029
Predominantly Downwind1.1805
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.9334
Tretall Distanseseilas Mellomvind1.2037
Tretall Distanseseilas Mye vind1.3388
Tretall Pølsebane Lite vind0.7239
Tretall Pølsebane Mellomvind0.9725
Tretall Pølsebane Mye vind1.0945
Distanseseilas ett tall (OSN 8-16kn)1.0979
Distanseseilas ett tall (APH 6-20kn)1.1953
Enkeltall Motvind1.1029
Enkeltall Medvind1.1805
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Coastal/Long Distance546.51.0979
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind544.01.1029
Predominantly Downwind508.31.1805
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore534.71.1221
Cape Doctor Coastal437.81.3703
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9334
Triple Number Coastal/Long Distance Medium1.2037
Triple Number Coastal/Long Distance High1.3388
Triple Number Windward/Leeward Low0.7239
Triple Number Windward/Leeward Medium0.9725
Triple Number Windward/Leeward High1.0945
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9334
Triple Number Coastal/Long Distance Medium1.2037
Triple Number Coastal/Long Distance High1.3388
Triple Number Windward/Leeward Low0.7239
Triple Number Windward/Leeward Medium0.9725
Triple Number Windward/Leeward High1.0945
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance546.51.0979
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Predominantly Upwind544.01.1029
Predominantly Downwind508.31.1805
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance916.7694.3580.1517.6484.2456.4411.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance546.51.0979
Triple Number Coastal/Long Distance Low642.80.9334
Triple Number Coastal/Long Distance Medium498.51.2037
Triple Number Coastal/Long Distance High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance916.7694.3580.1517.6484.2456.4411.8
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low642.80.9334
Triple Number All Purpose Medium498.51.2037
Triple Number All Purpose High448.21.3388
Triple Number Windward/Leeward Low828.80.7239
Triple Number Windward/Leeward Medium617.00.9725
Triple Number Windward/Leeward High548.21.0945
Predominantly Upwind544.01.1029
Predominantly Downwind508.31.1805
Predominantly Upwind Low718.60.8350
Predominantly Upwind Medium562.51.0667
Predominantly Upwind High526.61.1394
Predominantly Downwind Low700.00.8572
Predominantly Downwind Medium504.71.1889
Predominantly Downwind High426.01.4085
Chicago-Mac Upwind1.0836
Chicago-Mac All Purpose1.1187
Chicago-Mac Downwind1.1604
Bayview-Mac Cove Island1.0412
Bayview-Mac Shore1.0506
Harvest Moon Regatta434.01.3825
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy530.81.1303
San Francisco Bay Medium607.20.9881
Predominantly Reaching475.31.2624
Predominantly Reaching Low581.61.0317
Predominantly Reaching Medium470.41.2756
Predominantly Reaching High412.11.4559
Windward/Leeward 60-40 Low835.10.7185
Windward/Leeward 60-40 Medium636.10.9433
Windward/Leeward 60-40 High576.91.0400
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low905.50.6626
5-Band Low / Medium757.50.7920
5-Band Medium607.60.9875
5-Band Medium / High555.91.0793
5-Band High531.21.1296
ORC Ref  03190002SMDIssued on 25/09/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

TWINS TWICE

ITA-77477

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)
ClassDehler 42Measurement04/05/2023HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA12.382Max. Beam3.924Draft2.375Displacement8,021Wetted area35.37IMS L11.817LSM011.655Acc. length12.382Sink (kg/mm) 27.47
VCGD-0.028VCGM0.070RM Rated (kg·m) 250.5Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.460PBW0.120PIPA0.0037
EDL2.000ST10.065ST20.180
ST30.180ST40.110ST50.200
RIG
Forestay tensionAftInner stayNone FittedCarbon mastYesHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P16.440IG16.810ISP18.680MDT10.129MDL10.220MDT20.085MDL20.185TL1.600MW0.220GO0.255
E5.680J4.960BAS1.710FSD0.035SFJSPLWPLTPS5.660BDMWT191.00MCG5.790
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.028Flotation Date14/10/2021MeasurerFIV-113Comment
SFFP0.274FFMFF1.234LCFcl6.914SG1.0000
SAFP11.985FAMFA0.987LCFsh7.174HBI1.317
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCGApvcWater20BpvcFuel20Total deductible37
Total deductible
ORC Ref  03190002SMDIssued on 25/09/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

TWINS TWICE

ITA-77477

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentC0.381.402.303.714.8057.0107/10/2021
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentF0.140.851.572.854.015.0516.78NoNo 45.8502/05/2022ProviniE0.110.831.472.653.945.1416.59NoNo 44.2207/10/2021J1F0.120.821.482.653.925.1316.58NoNo 44.1107/10/2021J2
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentE20.7517.4019.0810.169.60106%159.7204/05/2023F19.8616.3618.119.679.70100%146.03D18.6716.8817.788.149.5385%124.6902/05/2022Provini
ORC Ref  03190002SMDIssued on 25/09/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org