Club Certificate2026
MOAUSA 487
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 Angles46.4°43.7°41.5°39.7°37.7°36.8°36.6°36.5°37.1°
Beat VMG2.313.354.154.745.125.295.395.485.48
52°3.635.136.176.827.167.347.457.567.60
60°3.915.436.437.017.337.547.677.827.89
75°4.115.616.607.157.507.788.018.278.42
90°4.065.746.857.407.727.948.168.699.08
110°4.165.856.997.618.128.578.979.6810.38
120°4.035.706.877.538.088.639.2510.4811.53
135°3.565.136.357.167.718.278.8810.6513.47
150°2.944.315.476.457.147.618.079.1911.56
Run VMG2.553.734.745.596.216.657.057.9610.01
Gybe Angles139.3°142.8°146.7°149.8°152.3°156.2°158.3°144.7°140.5°
APH ToD:545.7CDL: 9.327APH ToT: 1.0995CertNo:US487
BOAT
ClassJ 105DesignerJOHNSTONEBuilderTILLOTSON-PEARSONAge date07/2001Series date05/1991Offset filej105.offData fileUS487
HULL
Length Overall10.570 mMaximum Beam3.344 mDraft2.002 mDisplacement3,861 kgDLR4.6025IMS DivisionPerformanceDynamic Allowance0.180%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.381m
CREW
Maximum weight540 kg(declared)Minimum weight410 kg ✱ when appliedCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail33.8734.60Headsail Luffed24.9924.99Headsail FlyingSymmetricAsymmetric87.6287.62 (1 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 103.6 kg·m Stability Index 116.7
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  04560004VDK Issued on 17/07/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
MOAUSA 487
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 VMG1555.91074.9868.4759.8703.6679.9667.3656.6657.3
52°990.4701.2583.5527.9502.7490.2483.5476.1473.6
60°919.9663.4559.8513.7490.9477.3469.2460.3456.5
75°875.2641.3545.4503.6480.2462.5449.5435.3427.6
90°885.9627.3525.4486.4466.3453.3441.0414.1396.7
110°865.3615.8514.8472.9443.3420.0401.4372.1346.8
120°893.2631.5523.7478.2445.6417.3389.1343.6312.1
135°1011.7702.1567.0502.8467.0435.5405.6338.0267.4
150°1222.9834.9657.7558.0504.2473.0445.9391.7311.5
Run VMG1412.1964.0759.5644.3580.0541.4511.0452.3359.6
Selected Courses
Windward / Leeward1484.01019.5814.0702.1641.8610.6589.2554.5508.5
All purpose1123.2783.3638.0565.6526.3502.6484.8454.6423.7
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward674.10.8901
All purpose545.71.0995
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0104
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1476.81013.9764.5634.6560.8521.8489.3433.9404.3
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7762
Downwind "popa"0.9433
70% up, 30% down "Ilhabela"0.8198
30% up, 70% down "Ilhabela-inverso"0.8861
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Predominantly Upwind593.71.0105
Predominantly Downwind553.11.0848
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP568.41.0555 Predom. Rc High426.71.4060 5B SF Bay L/M743.10.8074 TriNum AP Low710.60.8443 Predom. Dn Low854.80.7019 5B SF Bay Med632.30.9490 TriNum AP Med542.91.1053 Predom. Dn L/M625.20.9596 5B SF Bay M/H571.01.0507 TriNum AP High477.91.2554 Predom. Dn Med534.21.1232 5B SF Bay High534.21.1231 TriNum W/L Low962.20.6235 Predom. Dn M/H474.41.2647 5B AP Low791.30.7583 TriNum W/L Med668.40.8976 Predom. Dn High425.11.4114 5B AP L/M617.40.9719 TriNum W/L Hig581.51.0318 ChiMac Up Low766.50.7828 5B AP Med534.71.1221 Predom. Upwind620.90.9663 ChiMac Up Med684.70.8764 5B AP M/H486.21.2341 Predom. Reaching543.71.1036 ChiMac Up High589.31.0182 5B AP High454.51.3201 Predom. Downwind577.01.0399 ChiMac Off Low732.50.8192 5B W/L Low1084.20.5534 Predom. Up Low882.90.6796 ChiMac Off Med645.00.9302 5B W/L L/M779.40.7699 Predom. Up L/M657.10.9131 ChiMac Off High538.81.1136 5B W/L Med656.60.9138 Predom. Up Med573.51.0462 ChiMac AP Low745.90.8044 5B W/L M/H591.31.0146 Predom. Up M/H531.11.1298 ChiMac AP Med662.40.9058 5B W/L High552.51.0859 Predom. Up High508.11.1809 ChiMac AP High562.71.0664 W/L 60-40 Low1096.10.5474 Predom. Rc Low769.50.7798 BayMac Cove Island861.60.6964 W/L 60-40 L/M790.70.7588 Predom. Rc L/M577.81.0383 BayMac Shore855.40.7014 W/L 60-40 Med669.20.8966 Predom. Rc Med507.41.1826 Harvest Moon476.21.2601 W/L 60-40 M/H607.20.9881 Predom. Rc M/H462.61.2971 5B SF Bay Low912.00.6579 W/L 60-40 High573.71.0458      SA/DSPL Up23.81SA/DSPL Dn49.14
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0104
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1476.81013.9764.5634.6560.8521.8489.3433.9404.3
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0104
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1476.81013.9764.5634.6560.8521.8489.3433.9404.3
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance593.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1476.81013.9764.5634.6560.8521.8489.3433.9404.3
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating593.91.0104
FinRating, kevyt tuuli1067.40.9369
FinRating, kova tuuli454.41.1003
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance1.0104
Triple Number Coastal/Long Distance Low0.8443
Triple Number Coastal/Long Distance Medium1.1054
Triple Number Coastal/Long Distance High1.2554
Triple Number Windward/Leeward Low0.6545
Triple Number Windward/Leeward Medium0.8976
Triple Number Windward/Leeward High1.0318
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1476.81013.9764.5634.6560.8521.8489.3433.9404.3
For information
General Purpose Handicap (GPH)614.7
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0104
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Saronikos S All Purpose629.60.9530
Saronikos S Upwind716.90.8369
Saronikos S Downwind522.71.1478
Saronikos N All Purpose658.80.9107
Saronikos N Upwind750.40.7996
Saronikos N Downwind572.01.0490
Saronikos SW All Purpose633.60.9470
Saronikos SW Upwind742.80.8077
Saronikos SW Downwind524.11.1447
Saronikos NE All Purpose683.30.8781
Saronikos NE Upwind705.90.8499
Saronikos NE Downwind640.20.9372
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1476.81013.9764.5634.6560.8521.8489.3433.9404.3
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose568.41.0555
5-Band All Purpose Low864.90.6937
5-Band All Purpose L/M639.10.9388
5-Band All Purpose Med552.81.0853
5-Band All Purpose M/H502.51.1940
5-Band All Purpose High467.01.2847
Single Number Predominant Upwind592.91.0120
Single Number Predominant Reaching522.21.1489
Single Number Predominant Downwind553.71.0837
5-Band 50-50 Windward/Leeward Low1084.20.5534
5-Band 50-50 Windward/Leeward L/M779.40.7699
5-Band 50-50 Windward/Leeward Med656.60.9138
5-Band 50-50 Windward/Leeward M/H591.31.0146
5-Band 50-50 Windward/Leeward High552.51.0859
5-Band 60-40 Windward/Leeward Low1096.10.5474
5-Band 60-40 Windward/Leeward L/M790.70.7588
5-Band 60-40 Windward/Leeward Med669.20.8966
5-Band 60-40 Windward/Leeward M/H607.20.9881
5-Band 60-40 Windward/Leeward High573.71.0458
Triple Number 50-50 Windward/Leeward Low962.20.6235
Triple Number 50-50 Windward/Leeward Med668.50.8975
Triple Number 50-50 Windward/Leeward High581.51.0318
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward687.10.8732
Triple Number 60-40 Windward/Leeward Low973.60.6162
Triple Number 60-40 Windward/Leeward Med680.90.8812
Triple Number 60-40 Windward/Leeward High598.51.0025
Triple Number All-Purpose Low773.10.7761
Triple Number All-Purpose Med561.21.0691
Triple Number All-Purpose High493.41.2160
Triple Number Predominant Upwind Low797.40.7525
Triple Number Predominant Upwind Med584.01.0273
Triple Number Predominant Upwind High530.11.1319
Triple Number Predominant Reaching Low695.60.8625
Triple Number Predominant Reaching Med523.01.1472
Triple Number Predominant Reaching High444.61.3497
Triple Number Predominant Downwind Low761.60.7878
Triple Number Predominant Downwind Med543.81.1033
Triple Number Predominant Downwind High453.11.3242
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0104
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1476.81013.9764.5634.6560.8521.8489.3433.9404.3
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0104
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1476.81013.9764.5634.6560.8521.8489.3433.9404.3
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low710.6
Triple Number Coastal/Long Distance Medium542.8
Triple Number Coastal/Long Distance High477.9
Triple Number Windward/Leeward Low916.7
Triple Number Windward/Leeward Medium668.4
Triple Number Windward/Leeward High581.5
Predominantly Upwind593.7
Predominantly Downwind553.1
Predominantly Reaching530.2
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0104
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1476.81013.9764.5634.6560.8521.8489.3433.9404.3
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8443
Triple Number Coastal/Long Distance Medium1.1054
Triple Number Coastal/Long Distance High1.2554
Triple Number Windward/Leeward Low0.6545
Triple Number Windward/Leeward Medium0.8976
Triple Number Windward/Leeward High1.0318
Coastal/Long Distance1.0104
Predominantly Upwind1.0105
Predominantly Downwind1.0848
For information
General Purpose Handicap (GPH)614.7
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0995
Distanseseilas Trippeltall svak vind0.8443
Distanseseilas Trippeltall mellomvind1.1054
Distanseseilas Trippeltall sterk vind1.2554
Pølsebane Trippeltall svak vind0.6545
Pølsebane Trippeltall mellomvind0.8976
Pølsebane Trippeltall sterk vind1.0318
Motvind Singeltall1.0105
Medvind Singeltall1.0848
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Coastal/Long Distance593.91.0104
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind593.71.0105
Predominantly Downwind553.11.0848
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore522.31.1488
Cape Doctor Coastal433.01.3858
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8443
Triple Number Coastal/Long Distance Medium1.1054
Triple Number Coastal/Long Distance High1.2554
Triple Number Windward/Leeward Low0.6545
Triple Number Windward/Leeward Medium0.8976
Triple Number Windward/Leeward High1.0318
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8443
Triple Number Coastal/Long Distance Medium1.1054
Triple Number Coastal/Long Distance High1.2554
Triple Number Windward/Leeward Low0.6545
Triple Number Windward/Leeward Medium0.8976
Triple Number Windward/Leeward High1.0318
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0104
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Predominantly Upwind593.71.0105
Predominantly Downwind553.11.0848
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1476.81013.9764.5634.6560.8521.8489.3433.9404.3
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0104
Triple Number Coastal/Long Distance Low710.60.8443
Triple Number Coastal/Long Distance Medium542.81.1054
Triple Number Coastal/Long Distance High477.91.2554
Triple Number Windward/Leeward Low916.70.6545
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High581.51.0318
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1476.81013.9764.5634.6560.8521.8489.3433.9404.3
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP568.41.0555 Predom. Dn High425.11.4114 5B AP M/H486.21.2341 TriNum AP Low710.60.8443 Predom. Rc Low769.50.7798 5B AP High454.51.3201 TriNum AP Med542.91.1053 Predom. Rc L/M577.81.0383 5B SF Bay Low912.00.6579 TriNum AP High477.91.2554 Predom. Rc Med507.41.1826 5B SF Bay L/M743.10.8074 TriNum W/L Low962.20.6235 Predom. Rc M/H462.61.2971 5B SF Bay Med632.30.9490 TriNum W/L Med668.40.8976 Predom. Rc High426.71.4060 5B SF Bay M/H571.01.0507 TriNum W/L Hig581.51.0318 5B W/L Low1084.20.5534 5B SF Bay High534.21.1231 Predom. Upwind620.90.9663 5B W/L L/M779.40.7699 ChiMac Up Low766.50.7828 Predom. Reaching543.71.1036 5B W/L Med656.60.9138 ChiMac Up Med684.70.8764 Predom. Downwind577.01.0399 5B W/L M/H591.31.0146 ChiMac Up High589.31.0182 Predom. Up Low882.90.6796 5B W/L High552.51.0859 ChiMac Off Low732.50.8192 Predom. Up L/M657.10.9131 W/L 60-40 Low1096.10.5474 ChiMac Off Med645.00.9302 Predom. Up Med573.51.0462 W/L 60-40 L/M790.70.7588 ChiMac Off High538.81.1136 Predom. Up M/H531.11.1298 W/L 60-40 Med669.20.8966 ChiMac AP Low745.90.8044 Predom. Up High508.11.1809 W/L 60-40 M/H607.20.9881 ChiMac AP Med662.40.9058 Predom. Dn Low854.80.7019 W/L 60-40 High573.71.0458 ChiMac AP High562.71.0664 Predom. Dn L/M625.20.9596 5B AP Low791.30.7583 BayMac Cove Island861.60.6964 Predom. Dn Med534.21.1232 5B AP L/M617.40.9719 BayMac Shore855.40.7014 Predom. Dn M/H474.41.2647 5B AP Med534.71.1221 Harvest Moon476.21.2601      SA/DSPL Up23.81SA/DSPL Dn49.14
ORC Ref  04560004VDK Issued on 17/07/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
MOAUSA 487
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ 105MeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall10.570Maximum beam3.344Draft2.002Displacement3,861Wetted area22.66IMS L9.648LSM09.430Accomod. length10.570Sink (kg/mm) 17.01
VCGD-0.169VCGM-0.182 RM Rated (kg·m) 103.6Limit of positive stability(°) 119.3 Stability Index 116.7 BLR index 0.0000Default crew weight633 Declared crew weight 540
Centerboard weight0.0List angle0.0Canting keel angle0.0
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
BackstayAdjustableForestayFixedInner 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
E4.450J4.130BAS1.553FSD0.034SFJ0.000SPL0.000WPLTPS5.901BD0.130MWT0.00MCG0.000
PY0.000MDT1Y0.000MDL1Y0.000MDT2Y0.000MDL2Y0.000TLY0.000BASY0.000EY0.000BDY0.000IY0.000EB0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered103.6Flotation Date01/01/2020
SFFP0.966FFM1.105FF1.105LCFcl5.879SG
SAFP10.056FAM0.758FA0.758LCFsh6.117HBI0.933
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04560004VDK Issued on 17/07/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
MOAUSA 487
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMN-20.160.941.702.913.7933.8710/03/2025202264Main0.150.911.672.873.7333.4329/06/2021Main Dacron
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ30.080.541.032.023.064.1512.15YesNo 24.9924/06/2022OUS 145087-001J3-250.080.561.042.023.074.1412.11YesNo 24.9617/10/2025208593
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA215.0012.1013.557.478.9284%87.6206/03/2024OUS149906-001Blue/Green13.7611.5012.637.078.1487%76.6629/06/2021Lt. Blue/Dk. Blue/Green
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
ORC Ref  04560004VDK Issued on 17/07/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org