Club
Certificate
2023

Boat

MAYHEM

USA 67

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 Angles42.9°40.6°39.0°37.8°37.2°37.0°37.6°
Beat VMG3.494.284.815.075.195.255.28
52°5.296.306.887.137.257.337.40
60°5.566.527.057.327.467.567.66
75°5.886.837.247.507.757.928.13
90°6.107.037.517.838.048.238.60
110°5.906.997.568.018.438.859.57
120°5.746.917.548.088.579.0510.14
135°5.126.417.247.818.399.0310.76
150°4.325.506.507.207.638.039.32
Run VMG3.744.765.636.246.607.018.07
Gybe Angles143.3°147.5°148.4°150.3°148.7°173.0°142.6°

APH: 544.4

CDL: 9.218

GPH: 610.2

CertNo: US7390

BOAT
ClassJ 105DesignerJohnstoneBuilderTPIAge date01/2004Series date01/1995Offset fileH204+.offData fileUSA67
HULL
Length Overall10.570 mMaximum Beam3.346 mDraft2.001 mDisplacement3,889 kgDLR4.4999IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.374m
CREW
Maximum weight369 kgMinimum weight277 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail33.6634.35Headsail Luffed25.3925.39Headsail FlyingSymmetricAsymmetric104.46104.46 (2 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail9.86Storm Jib7.66Heavy Weather Jib20.66
SAIL LIMITS
Headsails5  Spinnakers4
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  04560002LD0Issued on 11/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MAYHEM

USA 67

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 VMG1032.2841.6748.2709.6693.6685.3681.3
52°680.5571.7523.5504.6496.4491.3486.7
60°648.0551.9510.7492.1482.4476.5470.3
75°612.1526.8497.5479.9464.4454.3443.0
90°590.1511.8479.7460.0447.8437.5418.7
110°609.9514.8475.9449.5426.9406.6376.0
120°626.7521.1477.5445.8420.2397.9355.1
135°703.7561.7497.1460.7428.9398.5334.5
150°832.9654.7554.2500.1472.1448.2386.3
Run VMG961.7756.0640.0577.3545.1513.6446.1
Selected Courses
Windward / Leeward997.0798.8694.1643.4619.4599.5563.7
All purpose764.2626.6560.3526.4506.7490.8461.8
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward673.60.8908
All purpose544.41.1022
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance592.41.0129
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.5751.0628.1561.2526.3496.2441.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7790
Downwind "popa"0.9460
70% up, 30% down "Ilhabela"0.8225
30% up, 70% down "Ilhabela-inverso"0.8888
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Predominantly Upwind590.91.0153
Predominantly Downwind548.61.0937
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low695.40.8628
Triple Number All Purpose Medium541.11.1088
Triple Number All Purpose High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Predominantly Upwind590.91.0153
Predominantly Downwind548.61.0937
Predominantly Upwind Low780.30.7689
Predominantly Upwind Medium611.60.9810
Predominantly Upwind High573.51.0462
Predominantly Downwind Low754.50.7953
Predominantly Downwind Medium544.51.1018
Predominantly Downwind High456.31.3149
Chicago-Mac Upwind0.9980
Chicago-Mac All Purpose1.0337
Chicago-Mac Downwind1.0755
Bayview-Mac Cove Island0.9600
Bayview-Mac Shore0.9663
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching513.01.1695
Predominantly Reaching Low623.80.9619
Predominantly Reaching Medium508.11.1810
Predominantly Reaching High446.31.3444
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low981.70.6112
5-Band Low / Medium820.00.7317
5-Band Medium657.10.9131
5-Band Medium / High600.50.9992
5-Band High569.91.0528
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance592.41.0129
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.5751.0628.1561.2526.3496.2441.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance592.41.0129
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.5751.0628.1561.2526.3496.2441.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance592.4
Triple Number Coastal/Long Distance Low695.4
Triple Number Coastal/Long Distance Medium541.1
Triple Number Coastal/Long Distance High483.9
Triple Number Windward/Leeward Low897.9
Triple Number Windward/Leeward Medium667.3
Triple Number Windward/Leeward High591.0
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.5751.0628.1561.2526.3496.2441.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance592.41.0129
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.5751.0628.1561.2526.3496.2441.5
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)592.41.0129
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.5751.0628.1561.2526.3496.2441.5
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8628
Triple Number Coastal/Long Distance Medium1.1088
Triple Number Coastal/Long Distance High1.2399
Triple Number Windward/Leeward Low0.6682
Triple Number Windward/Leeward Medium0.8992
Triple Number Windward/Leeward High1.0152
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.5751.0628.1561.2526.3496.2441.5
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance592.41.0129
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.5751.0628.1561.2526.3496.2441.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance592.41.0129
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.5751.0628.1561.2526.3496.2441.5
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.5751.0628.1561.2526.3496.2441.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low695.4
Triple Number Coastal/Long Distance Medium541.1
Triple Number Coastal/Long Distance High483.9
Triple Number Windward/Leeward Low897.9
Triple Number Windward/Leeward Medium667.3
Triple Number Windward/Leeward High591.0
Predominantly Upwind590.9
Predominantly Downwind548.6
Predominantly Reaching524.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance592.41.0129
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.5751.0628.1561.2526.3496.2441.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8628
Triple Number Coastal/Long Distance Medium1.1088
Triple Number Coastal/Long Distance High1.2399
Triple Number Windward/Leeward Low0.6682
Triple Number Windward/Leeward Medium0.8992
Triple Number Windward/Leeward High1.0152
Coastal/Long Distance1.0129
Predominantly Upwind1.0153
Predominantly Downwind1.0937
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8628
Tretall Distanseseilas Mellomvind1.1088
Tretall Distanseseilas Mye vind1.2399
Tretall Pølsebane Lite vind0.6682
Tretall Pølsebane Mellomvind0.8992
Tretall Pølsebane Mye vind1.0152
Distanseseilas ett tall (OSN 8-16kn)1.0129
Distanseseilas ett tall (APH 6-20kn)1.1022
Enkeltall Motvind1.0153
Enkeltall Medvind1.0937
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Coastal/Long Distance592.41.0129
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind590.91.0153
Predominantly Downwind548.61.0937
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore574.41.0445
Cape Doctor Coastal470.51.2752
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8628
Triple Number Coastal/Long Distance Medium1.1088
Triple Number Coastal/Long Distance High1.2399
Triple Number Windward/Leeward Low0.6682
Triple Number Windward/Leeward Medium0.8992
Triple Number Windward/Leeward High1.0152
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8628
Triple Number Coastal/Long Distance Medium1.1088
Triple Number Coastal/Long Distance High1.2399
Triple Number Windward/Leeward Low0.6682
Triple Number Windward/Leeward Medium0.8992
Triple Number Windward/Leeward High1.0152
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance592.41.0129
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Predominantly Upwind590.91.0153
Predominantly Downwind548.61.0937
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.5751.0628.1561.2526.3496.2441.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance592.41.0129
Triple Number Coastal/Long Distance Low695.40.8628
Triple Number Coastal/Long Distance Medium541.11.1088
Triple Number Coastal/Long Distance High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.5751.0628.1561.2526.3496.2441.5
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low695.40.8628
Triple Number All Purpose Medium541.11.1088
Triple Number All Purpose High483.91.2399
Triple Number Windward/Leeward Low897.90.6682
Triple Number Windward/Leeward Medium667.30.8992
Triple Number Windward/Leeward High591.01.0152
Predominantly Upwind590.91.0153
Predominantly Downwind548.61.0937
Predominantly Upwind Low780.30.7689
Predominantly Upwind Medium611.60.9810
Predominantly Upwind High573.51.0462
Predominantly Downwind Low754.50.7953
Predominantly Downwind Medium544.51.1018
Predominantly Downwind High456.31.3149
Chicago-Mac Upwind0.9980
Chicago-Mac All Purpose1.0337
Chicago-Mac Downwind1.0755
Bayview-Mac Cove Island0.9600
Bayview-Mac Shore0.9663
Harvest Moon Regatta469.71.2773
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy571.81.0493
San Francisco Bay Medium657.00.9133
Predominantly Reaching513.01.1695
Predominantly Reaching Low623.80.9619
Predominantly Reaching Medium508.11.1810
Predominantly Reaching High446.31.3444
Windward/Leeward 60-40 Low905.70.6625
Windward/Leeward 60-40 Medium688.40.8715
Windward/Leeward 60-40 High623.30.9626
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low981.70.6112
5-Band Low / Medium820.00.7317
5-Band Medium657.10.9131
5-Band Medium / High600.50.9992
5-Band High569.91.0528
ORC Ref  04560002LD0Issued on 11/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MAYHEM

USA 67

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ 105Measurement08/06/2015HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA10.570Max. Beam3.346Draft2.001Displacement3,889Wetted area22.93IMS L9.580LSM09.524Acc. length10.570Sink (kg/mm) 17.28
VCGD-0.078VCGM-0.093RM Rated (kg·m) 99.9Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.374PBW0.098PIPA0.0042
PSD0.024PHD0.068PHL0.137
PSA16.5°ESL0.914
ST10.018ST20.091ST30.091
ST40.046ST50.186
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P12.650IG12.370ISP12.750MDT10.103MDL10.170MDT2MDL2TL2.000MW0.172GO0.172
E4.450J4.110BAS1.540FSD0.030SFJSPLWPLTPS5.980BD0.130MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.078Flotation Date10/08/2021MeasurerComment
SFFP0.966FFMFF1.128LCFcl5.988SG
SAFP10.056FAMFA0.735LCFsh6.223HBI0.932
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04560002LD0Issued on 11/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MAYHEM

USA 67

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain0.180.901.682.8833.6619/03/2021OUS141328-001
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJib0.082.024.1512.15YesNo 25.3919/03/2021OUS141328-002
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA215.2612.8714.079.048.40108%104.4619/01/20237024269-02AP15.0912.1413.627.549.0084%88.8619/03/2021OUS141328-005Reacher13.5711.4612.525.817.6576%64.4319/01/2023#12-0
ORC Ref  04560002LD0Issued on 11/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org