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 Angles46.3°43.7°41.4°39.7°37.8°36.9°36.7°36.6°37.2°
Beat VMG2.323.354.154.745.115.285.385.475.46
52°3.645.146.176.827.167.347.447.557.59
60°3.925.436.437.017.337.547.667.817.87
75°4.125.626.607.157.507.788.008.268.40
90°4.075.746.857.407.717.938.168.699.06
110°4.165.857.007.618.128.578.959.6510.35
120°4.035.716.887.538.088.639.2510.4511.51
135°3.565.136.367.167.718.278.8910.6713.47
150°2.954.325.486.467.157.628.089.2111.60
Run VMG2.553.744.745.596.216.657.057.9810.04
Gybe Angles139.3°142.8°146.7°149.8°152.4°156.2°158.3°144.8°140.7°
APH ToD:545.8CDL: 9.311APH ToT: 1.0994CertNo: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 weight513 kg(declared)Minimum weight383 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 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  04560004R8J Issued on 26/05/2026 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 VMG1553.51073.6867.6759.4704.4681.4669.1658.5659.6
52°989.0700.6583.1527.7502.9490.7484.2476.9474.6
60°918.6662.8559.5513.6491.0477.7469.9461.0457.4
75°873.9640.4545.1503.5480.2462.7449.9436.0428.4
90°885.1627.0525.4486.7467.0454.0441.0414.5397.4
110°864.5615.2514.6472.9443.4420.3402.1372.9347.8
120°892.5630.9523.3478.0445.5417.2389.1344.4312.8
135°1010.7701.5566.4502.5466.6435.1405.1337.3267.2
150°1221.6834.1657.1557.5503.8472.6445.4390.7310.4
Run VMG1410.6963.1758.8643.8579.5541.0510.6451.1358.4
Selected Courses
Windward / Leeward1482.11018.4813.2701.6642.0611.2589.9554.8509.0
All purpose1121.8782.5637.5565.4526.4503.0485.2455.1424.3
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward674.10.8900
All purpose545.81.0994
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0103
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1474.91012.9763.8634.2561.0522.2489.6434.3404.9
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7758
Downwind "popa"0.9442
70% up, 30% down "Ilhabela"0.8196
30% up, 70% down "Ilhabela-inverso"0.8865
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Predominantly Upwind593.91.0103
Predominantly Downwind552.91.0852
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP568.51.0554 Predom. Rc High426.91.4054 5B SF Bay L/M742.60.8080 TriNum AP Low710.00.8451 Predom. Dn Low854.00.7026 5B SF Bay Med632.40.9488 TriNum AP Med542.91.1052 Predom. Dn L/M624.80.9603 5B SF Bay M/H571.61.0496 TriNum AP High478.41.2543 Predom. Dn Med534.01.1235 5B SF Bay High534.81.1219 TriNum W/L Low961.20.6242 Predom. Dn M/H474.31.2649 5B AP Low790.50.7590 TriNum W/L Med668.40.8976 Predom. Dn High424.91.4121 5B AP L/M617.00.9724 TriNum W/L Hig582.11.0308 ChiMac Up Low765.90.7834 5B AP Med534.81.1219 Predom. Upwind621.10.9661 ChiMac Up Med684.50.8766 5B AP M/H486.61.2331 Predom. Reaching543.71.1036 ChiMac Up High589.51.0178 5B AP High455.01.3188 Predom. Downwind576.71.0404 ChiMac Off Low731.90.8198 5B W/L Low1083.00.5540 Predom. Up Low882.00.6803 ChiMac Off Med644.60.9308 5B W/L L/M778.80.7704 Predom. Up L/M656.70.9136 ChiMac Off High538.61.1141 5B W/L Med656.70.9137 Predom. Up Med573.81.0457 ChiMac AP Low745.40.8049 5B W/L M/H591.91.0137 Predom. Up M/H531.71.1284 ChiMac AP Med662.10.9061 5B W/L High553.01.0851 Predom. Up High508.91.1790 ChiMac AP High562.71.0663 W/L 60-40 Low1094.80.5480 Predom. Rc Low768.80.7804 BayMac Cove Island860.90.6969 W/L 60-40 L/M790.20.7593 Predom. Rc L/M577.61.0387 BayMac Shore854.70.7020 W/L 60-40 Med669.40.8963 Predom. Rc Med507.51.1823 Harvest Moon476.21.2601 W/L 60-40 M/H608.00.9869 Predom. Rc M/H462.71.2966 5B SF Bay Low911.00.6586 W/L 60-40 High574.51.0444      SA/DSPL Up23.81SA/DSPL Dn49.14
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0103
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1474.91012.9763.8634.2561.0522.2489.6434.3404.9
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0103
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1474.91012.9763.8634.2561.0522.2489.6434.3404.9
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 Distance1474.91012.9763.8634.2561.0522.2489.6434.3404.9
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating593.91.0103
FinRating, kevyt tuuli1066.20.9379
FinRating, kova tuuli454.91.0991
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance1.0103
Triple Number Coastal/Long Distance Low0.8451
Triple Number Coastal/Long Distance Medium1.1053
Triple Number Coastal/Long Distance High1.2543
Triple Number Windward/Leeward Low0.6552
Triple Number Windward/Leeward Medium0.8976
Triple Number Windward/Leeward High1.0308
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1474.91012.9763.8634.2561.0522.2489.6434.3404.9
For information
General Purpose Handicap (GPH)614.6
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0103
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Saronikos S All Purpose629.30.9534
Saronikos S Upwind716.70.8371
Saronikos S Downwind522.21.1490
Saronikos N All Purpose658.80.9108
Saronikos N Upwind750.30.7997
Saronikos N Downwind571.61.0498
Saronikos SW All Purpose633.20.9476
Saronikos SW Upwind742.40.8082
Saronikos SW Downwind523.71.1456
Saronikos NE All Purpose683.10.8783
Saronikos NE Upwind705.80.8501
Saronikos NE Downwind639.80.9379
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1474.91012.9763.8634.2561.0522.2489.6434.3404.9
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose568.51.0554
5-Band All Purpose Low864.10.6944
5-Band All Purpose L/M638.70.9393
5-Band All Purpose Med552.91.0851
5-Band All Purpose M/H502.81.1932
5-Band All Purpose High467.31.2839
Single Number Predominant Upwind593.01.0117
Single Number Predominant Reaching522.21.1489
Single Number Predominant Downwind553.51.0841
5-Band 50-50 Windward/Leeward Low1083.00.5540
5-Band 50-50 Windward/Leeward L/M778.80.7704
5-Band 50-50 Windward/Leeward Med656.70.9137
5-Band 50-50 Windward/Leeward M/H591.91.0137
5-Band 50-50 Windward/Leeward High553.01.0851
5-Band 60-40 Windward/Leeward Low1094.80.5480
5-Band 60-40 Windward/Leeward L/M790.20.7593
5-Band 60-40 Windward/Leeward Med669.40.8963
5-Band 60-40 Windward/Leeward M/H608.00.9869
5-Band 60-40 Windward/Leeward High574.51.0444
Triple Number 50-50 Windward/Leeward Low961.20.6242
Triple Number 50-50 Windward/Leeward Med668.50.8975
Triple Number 50-50 Windward/Leeward High582.11.0308
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward687.30.8730
Triple Number 60-40 Windward/Leeward Low972.60.6169
Triple Number 60-40 Windward/Leeward Med681.00.8811
Triple Number 60-40 Windward/Leeward High599.31.0012
Triple Number All-Purpose Low772.40.7768
Triple Number All-Purpose Med561.21.0691
Triple Number All-Purpose High493.71.2152
Triple Number Predominant Upwind Low796.60.7532
Triple Number Predominant Upwind Med584.21.0271
Triple Number Predominant Upwind High530.91.1301
Triple Number Predominant Reaching Low695.10.8632
Triple Number Predominant Reaching Med523.11.1470
Triple Number Predominant Reaching High444.71.3492
Triple Number Predominant Downwind Low761.00.7885
Triple Number Predominant Downwind Med543.61.1037
Triple Number Predominant Downwind High452.91.3249
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0103
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1474.91012.9763.8634.2561.0522.2489.6434.3404.9
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0103
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1474.91012.9763.8634.2561.0522.2489.6434.3404.9
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low710.0
Triple Number Coastal/Long Distance Medium542.8
Triple Number Coastal/Long Distance High478.4
Triple Number Windward/Leeward Low915.8
Triple Number Windward/Leeward Medium668.4
Triple Number Windward/Leeward High582.1
Predominantly Upwind593.9
Predominantly Downwind552.9
Predominantly Reaching530.1
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0103
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1474.91012.9763.8634.2561.0522.2489.6434.3404.9
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8451
Triple Number Coastal/Long Distance Medium1.1053
Triple Number Coastal/Long Distance High1.2543
Triple Number Windward/Leeward Low0.6552
Triple Number Windward/Leeward Medium0.8976
Triple Number Windward/Leeward High1.0308
Coastal/Long Distance1.0103
Predominantly Upwind1.0103
Predominantly Downwind1.0852
For information
General Purpose Handicap (GPH)614.6
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0994
Distanseseilas Trippeltall svak vind0.8451
Distanseseilas Trippeltall mellomvind1.1053
Distanseseilas Trippeltall sterk vind1.2543
Pølsebane Trippeltall svak vind0.6552
Pølsebane Trippeltall mellomvind0.8976
Pølsebane Trippeltall sterk vind1.0308
Motvind Singeltall1.0103
Medvind Singeltall1.0852
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Coastal/Long Distance593.91.0103
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind593.91.0103
Predominantly Downwind552.91.0852
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore522.81.1477
Cape Doctor Coastal433.51.3840
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8451
Triple Number Coastal/Long Distance Medium1.1053
Triple Number Coastal/Long Distance High1.2543
Triple Number Windward/Leeward Low0.6552
Triple Number Windward/Leeward Medium0.8976
Triple Number Windward/Leeward High1.0308
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8451
Triple Number Coastal/Long Distance Medium1.1053
Triple Number Coastal/Long Distance High1.2543
Triple Number Windward/Leeward Low0.6552
Triple Number Windward/Leeward Medium0.8976
Triple Number Windward/Leeward High1.0308
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0103
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Predominantly Upwind593.91.0103
Predominantly Downwind552.91.0852
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1474.91012.9763.8634.2561.0522.2489.6434.3404.9
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.91.0103
Triple Number Coastal/Long Distance Low710.00.8451
Triple Number Coastal/Long Distance Medium542.81.1053
Triple Number Coastal/Long Distance High478.41.2543
Triple Number Windward/Leeward Low915.80.6552
Triple Number Windward/Leeward Medium668.40.8976
Triple Number Windward/Leeward High582.11.0308
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1474.91012.9763.8634.2561.0522.2489.6434.3404.9
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP568.51.0554 Predom. Dn High424.91.4121 5B AP M/H486.61.2331 TriNum AP Low710.00.8451 Predom. Rc Low768.80.7804 5B AP High455.01.3188 TriNum AP Med542.91.1052 Predom. Rc L/M577.61.0387 5B SF Bay Low911.00.6586 TriNum AP High478.41.2543 Predom. Rc Med507.51.1823 5B SF Bay L/M742.60.8080 TriNum W/L Low961.20.6242 Predom. Rc M/H462.71.2966 5B SF Bay Med632.40.9488 TriNum W/L Med668.40.8976 Predom. Rc High426.91.4054 5B SF Bay M/H571.61.0496 TriNum W/L Hig582.11.0308 5B W/L Low1083.00.5540 5B SF Bay High534.81.1219 Predom. Upwind621.10.9661 5B W/L L/M778.80.7704 ChiMac Up Low765.90.7834 Predom. Reaching543.71.1036 5B W/L Med656.70.9137 ChiMac Up Med684.50.8766 Predom. Downwind576.71.0404 5B W/L M/H591.91.0137 ChiMac Up High589.51.0178 Predom. Up Low882.00.6803 5B W/L High553.01.0851 ChiMac Off Low731.90.8198 Predom. Up L/M656.70.9136 W/L 60-40 Low1094.80.5480 ChiMac Off Med644.60.9308 Predom. Up Med573.81.0457 W/L 60-40 L/M790.20.7593 ChiMac Off High538.61.1141 Predom. Up M/H531.71.1284 W/L 60-40 Med669.40.8963 ChiMac AP Low745.40.8049 Predom. Up High508.91.1790 W/L 60-40 M/H608.00.9869 ChiMac AP Med662.10.9061 Predom. Dn Low854.00.7026 W/L 60-40 High574.51.0444 ChiMac AP High562.71.0663 Predom. Dn L/M624.80.9603 5B AP Low790.50.7590 BayMac Cove Island860.90.6969 Predom. Dn Med534.01.1235 5B AP L/M617.00.9724 BayMac Shore854.70.7020 Predom. Dn M/H474.31.2649 5B AP Med534.81.1219 Harvest Moon476.21.2601      SA/DSPL Up23.81SA/DSPL Dn49.14
ORC Ref  04560004R8J Issued on 26/05/2026 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 L9.634LSM09.430Accomod. length10.570Sink (kg/mm) 17.01
VCGD-0.169VCGM-0.182 RM Rated (kg·m) 103.6Limit of positive stability(°) 119.6 Stability Index 117.0 BLR index 0.0000Default crew weight633 Declared crew weight 513
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  04560004R8J Issued on 26/05/2026 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  04560004R8J Issued on 26/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org