Club
Certificate
Non Spinnaker
2023

Boat

MISCHIEF

USA 52660

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles44.4°42.6°41.2°40.6°40.2°40.0°40.0°
Beat VMG4.305.285.846.126.296.406.47
52°6.678.008.719.039.219.339.45
60°7.118.429.099.399.579.689.81
75°7.448.719.409.7810.0210.2010.43
90°7.308.619.399.8710.2710.6211.09
110°6.457.838.839.5210.0510.5711.54
120°5.767.258.459.279.8410.3711.54
135°4.876.307.538.559.299.8310.93
150°4.035.306.457.488.369.0710.04
Run VMG3.494.595.596.487.328.189.49
Gybe Angles141.2°145.1°146.9°147.8°173.6°175.7°178.4°

APH: 467.5

CDL: 14.631

GPH: 529.9

CertNo: US5266

BOAT
ClassIY 60DesignerSimonis VoogtBuilderIndigo YachtingAge date07/2004Series date01/2004Offset fileIY60_JT.OFFData fileUSA52660NS
HULL
Length Overall18.272 mMaximum Beam4.710 mDraft2.617 mDisplacement16,822 kgDLR3.9265IMS DivisionCruiser/RacerDynamic Allowance0.230%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFeathering 3 bladesDiameter0.609m
CREW
Maximum weight500 kgMinimum weight375 kg * when appliedNon Manual PowerYesCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail97.5999.48Headsail Luffed76.2676.26Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail28.85Storm Jib25.32Heavy Weather Jib68.35
SAIL LIMITS
Headsails7  Spinnakers0 * No spinnaker pole aboard
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  03330002RV2Issued on 30/08/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

MISCHIEF

USA 52660

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG837.6682.2616.7588.0572.3562.7556.0
52°540.1449.9413.4398.7390.7385.9381.1
60°506.7427.6395.9383.2376.3371.9366.9
75°483.6413.1383.2368.3359.2353.0345.1
90°493.0417.9383.6364.6350.4339.0324.6
110°557.8459.7407.8378.3358.4340.7311.9
120°625.5496.7426.2388.2365.9347.1312.0
135°739.4571.4478.4421.0387.5366.1329.4
150°892.9679.0557.8481.4430.6397.0358.6
Run VMG1031.1784.0644.1555.9491.6440.2379.3
Selected Courses
Windward / Leeward934.3733.1630.4571.9532.0501.5467.7
All purpose694.4556.5487.5449.2424.7406.8384.4
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward597.61.0040
All purpose467.51.2835
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance516.71.1613
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.0687.6559.7484.2442.8410.8364.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.9512
Downwind "popa"0.9708
70% up, 30% down "Ilhabela"0.9570
30% up, 70% down "Ilhabela-inverso"0.9648
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Predominantly Upwind493.31.2162
Predominantly Downwind497.71.2056
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low625.50.9593
Triple Number All Purpose Medium464.81.2909
Triple Number All Purpose High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Predominantly Upwind493.31.2162
Predominantly Downwind497.71.2056
Predominantly Upwind Low665.90.9010
Predominantly Upwind Medium499.91.2003
Predominantly Upwind High464.31.2923
Predominantly Downwind Low741.30.8094
Predominantly Downwind Medium508.41.1802
Predominantly Downwind High396.51.5134
Chicago-Mac Upwind1.1926
Chicago-Mac All Purpose1.1849
Chicago-Mac Downwind1.1769
Bayview-Mac Cove Island1.1055
Bayview-Mac Shore1.1353
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching437.91.3702
Predominantly Reaching Low565.11.0618
Predominantly Reaching Medium437.81.3706
Predominantly Reaching High372.21.6120
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low918.80.6530
5-Band Low / Medium755.10.7946
5-Band Medium582.51.0301
5-Band Medium / High506.91.1836
5-Band High473.51.2671
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance516.71.1613
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.0687.6559.7484.2442.8410.8364.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance516.71.1613
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.0687.6559.7484.2442.8410.8364.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance516.7
Triple Number Coastal/Long Distance Low625.5
Triple Number Coastal/Long Distance Medium464.8
Triple Number Coastal/Long Distance High402.8
Triple Number Windward/Leeward Low833.7
Triple Number Windward/Leeward Medium594.9
Triple Number Windward/Leeward High496.4
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.0687.6559.7484.2442.8410.8364.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance516.71.1613
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.0687.6559.7484.2442.8410.8364.1
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)516.71.1613
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.0687.6559.7484.2442.8410.8364.1
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9593
Triple Number Coastal/Long Distance Medium1.2909
Triple Number Coastal/Long Distance High1.4894
Triple Number Windward/Leeward Low0.7197
Triple Number Windward/Leeward Medium1.0086
Triple Number Windward/Leeward High1.2087
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.0687.6559.7484.2442.8410.8364.1
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance516.71.1613
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.0687.6559.7484.2442.8410.8364.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance516.71.1613
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.0687.6559.7484.2442.8410.8364.1
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.0687.6559.7484.2442.8410.8364.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low625.5
Triple Number Coastal/Long Distance Medium464.8
Triple Number Coastal/Long Distance High402.8
Triple Number Windward/Leeward Low833.7
Triple Number Windward/Leeward Medium594.9
Triple Number Windward/Leeward High496.4
Predominantly Upwind493.3
Predominantly Downwind497.7
Predominantly Reaching459.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance516.71.1613
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.0687.6559.7484.2442.8410.8364.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9593
Triple Number Coastal/Long Distance Medium1.2909
Triple Number Coastal/Long Distance High1.4894
Triple Number Windward/Leeward Low0.7197
Triple Number Windward/Leeward Medium1.0086
Triple Number Windward/Leeward High1.2087
Coastal/Long Distance1.1613
Predominantly Upwind1.2162
Predominantly Downwind1.2056
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.9593
Tretall Distanseseilas Mellomvind1.2909
Tretall Distanseseilas Mye vind1.4894
Tretall Pølsebane Lite vind0.7197
Tretall Pølsebane Mellomvind1.0086
Tretall Pølsebane Mye vind1.2087
Distanseseilas ett tall (OSN 8-16kn)1.1613
Distanseseilas ett tall (APH 6-20kn)1.2835
Enkeltall Motvind1.2162
Enkeltall Medvind1.2056
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Coastal/Long Distance516.71.1613
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind493.31.2162
Predominantly Downwind497.71.2056
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore477.81.2557
Cape Doctor Coastal391.11.5342
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9593
Triple Number Coastal/Long Distance Medium1.2909
Triple Number Coastal/Long Distance High1.4894
Triple Number Windward/Leeward Low0.7197
Triple Number Windward/Leeward Medium1.0086
Triple Number Windward/Leeward High1.2087
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9593
Triple Number Coastal/Long Distance Medium1.2909
Triple Number Coastal/Long Distance High1.4894
Triple Number Windward/Leeward Low0.7197
Triple Number Windward/Leeward Medium1.0086
Triple Number Windward/Leeward High1.2087
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance516.71.1613
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Predominantly Upwind493.31.2162
Predominantly Downwind497.71.2056
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.0687.6559.7484.2442.8410.8364.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance516.71.1613
Triple Number Coastal/Long Distance Low625.50.9593
Triple Number Coastal/Long Distance Medium464.81.2909
Triple Number Coastal/Long Distance High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.0687.6559.7484.2442.8410.8364.1
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low625.50.9593
Triple Number All Purpose Medium464.81.2909
Triple Number All Purpose High402.81.4894
Triple Number Windward/Leeward Low833.70.7197
Triple Number Windward/Leeward Medium594.91.0086
Triple Number Windward/Leeward High496.41.2087
Predominantly Upwind493.31.2162
Predominantly Downwind497.71.2056
Predominantly Upwind Low665.90.9010
Predominantly Upwind Medium499.91.2003
Predominantly Upwind High464.31.2923
Predominantly Downwind Low741.30.8094
Predominantly Downwind Medium508.41.1802
Predominantly Downwind High396.51.5134
Chicago-Mac Upwind1.1926
Chicago-Mac All Purpose1.1849
Chicago-Mac Downwind1.1769
Bayview-Mac Cove Island1.1055
Bayview-Mac Shore1.1353
Harvest Moon Regatta396.01.5151
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy484.51.2385
San Francisco Bay Medium582.21.0305
Predominantly Reaching437.91.3702
Predominantly Reaching Low565.11.0618
Predominantly Reaching Medium437.81.3706
Predominantly Reaching High372.21.6120
Windward/Leeward 60-40 Low818.90.7326
Windward/Leeward 60-40 Medium597.21.0047
Windward/Leeward 60-40 High518.91.1562
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low918.80.6530
5-Band Low / Medium755.10.7946
5-Band Medium582.51.0301
5-Band Medium / High506.91.1836
5-Band High473.51.2671
ORC Ref  03330002RV2Issued on 30/08/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

MISCHIEF

USA 52660

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassIY 60MeasurementHINPlan reviewHull constructionCoredCarbon RudderYesLight stanchionsNoTrim tabNo
LOA18.272Max. Beam4.710Draft2.617Displacement16,822Wetted area57.55IMS L16.366LSM016.240Acc. length15.307Sink (kg/mm) 44.07
VCGD-0.107VCGM-0.134RM Rated (kg·m) 616.3Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFeathering 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.609PBWPIPA0.0049
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionAftInner stayCarbon mastYesHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingYesRunners/CheckstaysSpreaders3Rotating mastNo
P21.980IG22.500ISP24.330MDT10.190MDL10.320MDT20.180MDL20.260TL4.120MWGO
E7.500J6.580BAS2.150FSDSFJ0.690SPLWPLTPS7.100BDMWT533.00MCG8.700
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.107Flotation Date01/07/2022MeasurerComment
SFFP1.050FFMFF1.650LCFcl9.954SG
SAFP17.700FAMFA1.277LCFsh10.209HBI1.443
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03330002RV2Issued on 30/08/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

MISCHIEF

USA 52660

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain0.081.552.824.886.2297.5901/07/2022
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentAP Jib0.090.991.893.635.326.8921.37NoNo 76.2601/07/2022
ORC Ref  03330002RV2Issued on 30/08/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org