Club Certificate2026
MAYHEMUSA 67
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
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 Angles46.0°43.6°41.3°39.6°37.7°36.9°36.7°36.7°37.3°
Beat VMG2.333.374.174.765.115.285.375.465.45
52°3.665.166.206.847.167.337.437.547.57
60°3.945.456.457.027.347.537.657.807.85
75°4.155.676.727.227.507.787.998.248.38
90°4.325.936.957.467.828.088.268.679.03
110°4.175.867.007.618.118.558.919.7710.55
120°4.045.726.897.548.088.629.2310.4011.60
135°3.575.146.377.177.728.278.8910.6813.43
150°2.954.335.496.477.157.628.099.2211.61
Run VMG2.563.754.755.606.226.667.067.9910.05
Gybe Angles139.3°142.8°146.7°149.8°152.4°156.3°158.8°144.7°140.9°
APH ToD:544.4CDL: 9.303APH ToT: 1.1021CertNo:US7390
BOAT
ClassJ 105DesignerJohnstoneBuilderTPIAge date01/1993Series date01/1991Offset filej105.offData fileUSA67
HULL
Length Overall10.570 mMaximum Beam3.344 mDraft2.004 mDisplacement3,891 kgDLR4.6475IMS DivisionPerformanceDynamic Allowance0.180%Age Allowance0.650%RS Assessment-0.178%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.381m
CREW
Maximum weight500 kg(declared)Minimum weight370 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail34.0534.82Headsail Luffed25.3925.39Headsail FlyingSymmetricAsymmetric89.1089.10 (2 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS Maximum (m²)
Trysail9.86Storm Jib7.84Heavy Weather Jib21.16
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting Moment 103.3 kg·m Stability Index 117.0
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  04560004OKN Issued on 05/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
MAYHEMUSA 67
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
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 VMG1543.11068.1863.7756.8704.0682.1669.9659.5660.8
52°982.7697.5581.0526.6502.7491.0484.6477.5475.3
60°912.8660.0557.9512.7490.7477.9470.5461.8458.3
75°868.4635.3536.1498.6479.8462.8450.4437.1429.7
90°834.0606.8518.3482.4460.3445.7435.9415.4398.8
110°862.4614.0514.0472.8443.9421.2403.8368.6341.4
120°890.3629.6522.6477.7445.6417.7389.9346.2310.4
135°1008.1700.1565.5502.0466.3435.1405.1337.1268.0
150°1218.3832.4656.0556.7503.2472.2445.2390.3310.1
Run VMG1406.8961.1757.4642.8578.8540.4510.1450.7358.1
Selected Courses
Windward / Leeward1475.01014.6810.6699.8641.4611.2590.0555.1509.4
All purpose1111.5777.4634.6563.6525.3502.4485.1455.1424.1
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward673.20.8913
All purpose544.41.1021
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance592.61.0125
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.21009.3761.2632.6560.0521.4489.2435.1404.8
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7772
Downwind "popa"0.9457
70% up, 30% down "Ilhabela"0.8211
30% up, 70% down "Ilhabela-inverso"0.8879
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Predominantly Upwind592.21.0132
Predominantly Downwind551.31.0884
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP566.51.0592 Predom. Rc High427.11.4049 5B SF Bay L/M740.50.8103 TriNum AP Low706.00.8499 Predom. Dn Low848.10.7074 5B SF Bay Med631.70.9499 TriNum AP Med541.51.1080 Predom. Dn L/M622.60.9638 5B SF Bay M/H571.91.0492 TriNum AP High478.21.2547 Predom. Dn Med532.61.1266 5B SF Bay High535.11.1212 TriNum W/L Low957.80.6265 Predom. Dn M/H473.51.2671 5B AP Low785.20.7641 TriNum W/L Med667.40.8990 Predom. Dn High424.91.4122 5B AP L/M614.50.9764 TriNum W/L Hig582.21.0305 ChiMac Up Low760.90.7885 5B AP Med533.61.1244 Predom. Upwind618.80.9696 ChiMac Up Med681.00.8810 5B AP M/H486.31.2337 Predom. Reaching539.81.1115 ChiMac Up High588.11.0203 5B AP High454.91.3188 Predom. Downwind574.61.0441 ChiMac Off Low727.80.8243 5B W/L Low1078.70.5562 Predom. Up Low874.70.6860 ChiMac Off Med641.80.9349 5B W/L L/M776.60.7726 Predom. Up L/M653.80.9177 ChiMac Off High537.21.1169 5B W/L Med655.90.9148 Predom. Up Med572.31.0484 ChiMac AP Low740.20.8106 5B W/L M/H592.01.0135 Predom. Up M/H531.31.1293 ChiMac AP Med658.50.9111 5B W/L High553.21.0846 Predom. Up High509.41.1779 ChiMac AP High561.01.0694 W/L 60-40 Low1090.10.5504 Predom. Rc Low757.60.7919 BayMac Cove Island855.40.7014 W/L 60-40 L/M787.80.7616 Predom. Rc L/M573.81.0458 BayMac Shore848.60.7070 W/L 60-40 Med668.60.8974 Predom. Rc Med504.71.1887 Harvest Moon474.51.2646 W/L 60-40 M/H608.20.9865 Predom. Rc M/H461.01.3016 5B SF Bay Low907.50.6612 W/L 60-40 High574.91.0437      SA/DSPL Up23.92SA/DSPL Dn49.55
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance592.61.0125
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.21009.3761.2632.6560.0521.4489.2435.1404.8
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance592.61.0125
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.21009.3761.2632.6560.0521.4489.2435.1404.8
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance592.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.21009.3761.2632.6560.0521.4489.2435.1404.8
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating592.61.0125
FinRating, kevyt tuuli1060.60.9428
FinRating, kova tuuli455.11.0986
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance1.0125
Triple Number Coastal/Long Distance Low0.8499
Triple Number Coastal/Long Distance Medium1.1081
Triple Number Coastal/Long Distance High1.2547
Triple Number Windward/Leeward Low0.6575
Triple Number Windward/Leeward Medium0.8990
Triple Number Windward/Leeward High1.0305
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.21009.3761.2632.6560.0521.4489.2435.1404.8
For information
General Purpose Handicap (GPH)612.6
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance592.61.0125
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Saronikos S All Purpose627.10.9568
Saronikos S Upwind712.70.8419
Saronikos S Downwind521.61.1504
Saronikos N All Purpose656.40.9140
Saronikos N Upwind745.30.8051
Saronikos N Downwind570.81.0511
Saronikos SW All Purpose630.20.9521
Saronikos SW Upwind736.30.8148
Saronikos SW Downwind523.21.1469
Saronikos NE All Purpose679.70.8827
Saronikos NE Upwind698.40.8591
Saronikos NE Downwind638.70.9395
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.21009.3761.2632.6560.0521.4489.2435.1404.8
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose566.51.0592
5-Band All Purpose Low856.40.7006
5-Band All Purpose L/M635.80.9437
5-Band All Purpose Med551.21.0886
5-Band All Purpose M/H502.01.1953
5-Band All Purpose High467.61.2833
Single Number Predominant Upwind591.31.0147
Single Number Predominant Reaching519.41.1553
Single Number Predominant Downwind551.91.0872
5-Band 50-50 Windward/Leeward Low1078.70.5562
5-Band 50-50 Windward/Leeward L/M776.60.7726
5-Band 50-50 Windward/Leeward Med655.90.9148
5-Band 50-50 Windward/Leeward M/H592.01.0135
5-Band 50-50 Windward/Leeward High553.21.0846
5-Band 60-40 Windward/Leeward Low1090.10.5504
5-Band 60-40 Windward/Leeward L/M787.80.7616
5-Band 60-40 Windward/Leeward Med668.60.8974
5-Band 60-40 Windward/Leeward M/H608.20.9865
5-Band 60-40 Windward/Leeward High574.91.0437
Triple Number 50-50 Windward/Leeward Low957.80.6265
Triple Number 50-50 Windward/Leeward Med667.50.8989
Triple Number 50-50 Windward/Leeward High582.21.0305
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward686.30.8743
Triple Number 60-40 Windward/Leeward Low968.80.6193
Triple Number 60-40 Windward/Leeward Med679.90.8825
Triple Number 60-40 Windward/Leeward High599.61.0007
Triple Number All-Purpose Low766.70.7825
Triple Number All-Purpose Med559.41.0726
Triple Number All-Purpose High493.11.2167
Triple Number Predominant Upwind Low790.60.7589
Triple Number Predominant Upwind Med582.51.0300
Triple Number Predominant Upwind High530.81.1304
Triple Number Predominant Reaching Low687.40.8728
Triple Number Predominant Reaching Med520.61.1525
Triple Number Predominant Reaching High443.31.3533
Triple Number Predominant Downwind Low756.50.7931
Triple Number Predominant Downwind Med542.11.1068
Triple Number Predominant Downwind High452.31.3266
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance592.61.0125
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.21009.3761.2632.6560.0521.4489.2435.1404.8
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance592.61.0125
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.21009.3761.2632.6560.0521.4489.2435.1404.8
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low706.0
Triple Number Coastal/Long Distance Medium541.5
Triple Number Coastal/Long Distance High478.2
Triple Number Windward/Leeward Low912.5
Triple Number Windward/Leeward Medium667.4
Triple Number Windward/Leeward High582.2
Predominantly Upwind592.2
Predominantly Downwind551.3
Predominantly Reaching527.5
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance592.61.0125
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.21009.3761.2632.6560.0521.4489.2435.1404.8
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8499
Triple Number Coastal/Long Distance Medium1.1081
Triple Number Coastal/Long Distance High1.2547
Triple Number Windward/Leeward Low0.6575
Triple Number Windward/Leeward Medium0.8990
Triple Number Windward/Leeward High1.0305
Coastal/Long Distance1.0125
Predominantly Upwind1.0132
Predominantly Downwind1.0884
For information
General Purpose Handicap (GPH)612.6
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.1021
Distanseseilas Trippeltall svak vind0.8499
Distanseseilas Trippeltall mellomvind1.1081
Distanseseilas Trippeltall sterk vind1.2547
Pølsebane Trippeltall svak vind0.6575
Pølsebane Trippeltall mellomvind0.8990
Pølsebane Trippeltall sterk vind1.0305
Motvind Singeltall1.0132
Medvind Singeltall1.0884
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Coastal/Long Distance592.61.0125
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind592.21.0132
Predominantly Downwind551.31.0884
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore523.11.1470
Cape Doctor Coastal433.41.3843
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8499
Triple Number Coastal/Long Distance Medium1.1081
Triple Number Coastal/Long Distance High1.2547
Triple Number Windward/Leeward Low0.6575
Triple Number Windward/Leeward Medium0.8990
Triple Number Windward/Leeward High1.0305
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8499
Triple Number Coastal/Long Distance Medium1.1081
Triple Number Coastal/Long Distance High1.2547
Triple Number Windward/Leeward Low0.6575
Triple Number Windward/Leeward Medium0.8990
Triple Number Windward/Leeward High1.0305
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance592.61.0125
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Predominantly Upwind592.21.0132
Predominantly Downwind551.31.0884
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.21009.3761.2632.6560.0521.4489.2435.1404.8
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance592.61.0125
Triple Number Coastal/Long Distance Low706.00.8499
Triple Number Coastal/Long Distance Medium541.51.1081
Triple Number Coastal/Long Distance High478.21.2547
Triple Number Windward/Leeward Low912.50.6575
Triple Number Windward/Leeward Medium667.40.8990
Triple Number Windward/Leeward High582.21.0305
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.21009.3761.2632.6560.0521.4489.2435.1404.8
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP566.51.0592 Predom. Dn High424.91.4122 5B AP M/H486.31.2337 TriNum AP Low706.00.8499 Predom. Rc Low757.60.7919 5B AP High454.91.3188 TriNum AP Med541.51.1080 Predom. Rc L/M573.81.0458 5B SF Bay Low907.50.6612 TriNum AP High478.21.2547 Predom. Rc Med504.71.1887 5B SF Bay L/M740.50.8103 TriNum W/L Low957.80.6265 Predom. Rc M/H461.01.3016 5B SF Bay Med631.70.9499 TriNum W/L Med667.40.8990 Predom. Rc High427.11.4049 5B SF Bay M/H571.91.0492 TriNum W/L Hig582.21.0305 5B W/L Low1078.70.5562 5B SF Bay High535.11.1212 Predom. Upwind618.80.9696 5B W/L L/M776.60.7726 ChiMac Up Low760.90.7885 Predom. Reaching539.81.1115 5B W/L Med655.90.9148 ChiMac Up Med681.00.8810 Predom. Downwind574.61.0441 5B W/L M/H592.01.0135 ChiMac Up High588.11.0203 Predom. Up Low874.70.6860 5B W/L High553.21.0846 ChiMac Off Low727.80.8243 Predom. Up L/M653.80.9177 W/L 60-40 Low1090.10.5504 ChiMac Off Med641.80.9349 Predom. Up Med572.31.0484 W/L 60-40 L/M787.80.7616 ChiMac Off High537.21.1169 Predom. Up M/H531.31.1293 W/L 60-40 Med668.60.8974 ChiMac AP Low740.20.8106 Predom. Up High509.41.1779 W/L 60-40 M/H608.20.9865 ChiMac AP Med658.50.9111 Predom. Dn Low848.10.7074 W/L 60-40 High574.91.0437 ChiMac AP High561.01.0694 Predom. Dn L/M622.60.9638 5B AP Low785.20.7641 BayMac Cove Island855.40.7014 Predom. Dn Med532.61.1266 5B AP L/M614.50.9764 BayMac Shore848.60.7070 Predom. Dn M/H473.51.2671 5B AP Med533.61.1244 Harvest Moon474.51.2646      SA/DSPL Up23.92SA/DSPL Dn49.55
ORC Ref  04560004OKN Issued on 05/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
MAYHEMUSA 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
Length overall10.570Maximum beam3.344Draft2.004Displacement3,891Wetted area22.69IMS L9.607LSM09.424Accomod. length10.570Sink (kg/mm) 17.00
VCGD-0.159VCGM-0.175 RM Rated (kg·m) 103.3Limit of positive stability(°) 119.5 Stability Index 117.0 BLR index 0.0000Default crew weight633 Declared crew weight 500
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.381PBW0.100PIPA0.0049
PSD0.026PHD0.068PHL0.113
PSA21.0°ESL0.813
ST10.020ST20.096ST30.090
ST40.055ST50.255
RIG
BackstayAdjustableForestayAdjustable (turnbuckle)Inner forestayNot installedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P12.650IG12.433ISP12.853MDT10.101MDL10.164MDT20.085MDL20.105TL2.010MW0.164GO0.192
E4.450J4.130BAS1.553FSD0.034SFJ0.000SPLWPLTPS5.901BD0.130MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date09/03/2024
SFFP0.966FFM1.096FF1.095LCFcl5.858SG1.0270
SAFP10.056FAM0.763FA0.763LCFsh6.097HBI0.928
W153.4W253.4W353.4W453.4
PD1512.7PD2512.7PD3512.7PD4512.7
WD12.600PLM9000.00GSA1.0RSA1.0RM103.3
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCGAstbFuel5005.80BportWater2005.90Total deductible0
OTHER ITEMSIdKindDescriptionWeightLCGVCGCBattery70 Ah engine cl8.60DEngine (IC)Yanmar 2GMTotal deductible
ORC Ref  04560004OKN Issued on 05/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
MAYHEMUSA 67
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA0.181.692.8934.0517/04/2025Main0.180.901.682.8833.6619/03/2021OUS141328-001
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJib0.082.024.1512.15YesNo 25.3919/03/2021OUS141328-002A0.082.024.1412.15YesNo 25.3417/04/2025
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentB15.1012.1413.627.857.85100%89.1017/04/2025AP15.0912.1413.627.549.0084%88.8619/03/2021OUS141328-005Reacher13.5711.4612.525.817.6576%64.4319/01/2023
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
ORC Ref  04560004OKN Issued on 05/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org