Double HandedClub Certificate2026
SOUTHBOUNDUSA 423
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 Angles45.7°43.2°41.2°39.7°38.5°38.1°38.0°38.6°40.2°
Beat VMG2.353.384.174.694.955.075.145.195.09
52°3.685.166.196.797.057.177.257.337.32
60°3.965.446.456.997.257.397.487.587.59
75°4.185.756.717.157.467.687.858.038.12
90°4.436.036.997.427.687.888.098.508.78
110°4.315.937.007.598.048.378.779.519.99
120°4.085.766.927.558.088.599.1110.2111.25
135°3.615.196.437.237.798.359.0110.8512.83
150°2.994.375.546.527.217.718.209.5311.98
Run VMG2.593.784.805.656.276.717.138.2510.37
Gybe Angles139.6°142.6°146.5°149.8°152.5°155.2°154.1°144.9°143.3°
APH ToD:549.3CDL: 8.955APH ToT: 1.0923CertNo:US6910
BOAT
ClassJ 105DesignerJohnstoneBuilderTILLOTSON-PEARSONAge date07/2001Series date01/1991Offset fileJ105.offData fileUS423
HULL
Length Overall10.570 mMaximum Beam3.344 mDraft2.004 mDisplacement3,891 kgDLR4.6475IMS DivisionPerformanceDynamic Allowance0.190%Age Allowance0.650%RS Assessment-0.178%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.381m
CREW
Maximum weight152 kg(declared)Minimum weight120 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail33.7134.42Headsail Luffed25.0625.06Headsail FlyingSymmetricAsymmetric89.4489.44 (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 103.3 kg·m Stability Index 121.0
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  04560004RU5 Issued on 02/06/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
SOUTHBOUNDUSA 423
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 VMG1531.31064.5864.0768.0727.2709.8700.4693.6707.3
52°977.3698.1581.3530.4510.6501.8496.4491.1491.9
60°908.8661.3558.3514.9496.5487.0481.2474.8474.1
75°861.6625.9536.3503.4482.5468.5458.8448.1443.4
90°812.0596.6515.3485.0468.5456.9445.1423.4410.0
110°836.2607.3514.0474.6448.0429.9410.3378.6360.4
120°882.8624.9520.3476.8445.7419.1395.0352.5320.0
135°997.6693.1559.8498.2462.4431.1399.5331.8280.5
150°1205.5824.7650.1551.9499.3467.2438.9377.8300.5
Run VMG1392.0952.3750.7637.3574.1536.2505.1436.2347.0
Selected Courses
Windward / Leeward1461.61008.4807.3702.7650.6623.0602.8564.9527.2
All purpose1098.9772.1632.4565.7531.6510.9494.2463.9439.8
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward680.00.8824
All purpose549.31.0923
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance597.81.0037
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1454.71002.8758.1634.8567.3530.2498.4442.3416.0
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7598
Downwind "popa"0.9563
70% up, 30% down "Ilhabela"0.8098
30% up, 70% down "Ilhabela-inverso"0.8875
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Predominantly Upwind599.91.0002
Predominantly Downwind550.51.0900
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP571.21.0505 Predom. Rc High434.11.3821 5B SF Bay L/M741.20.8095 TriNum AP Low702.20.8544 Predom. Dn Low840.30.7141 5B SF Bay Med639.90.9377 TriNum AP Med546.31.0983 Predom. Dn L/M619.60.9683 5B SF Bay M/H584.21.0270 TriNum AP High487.01.2320 Predom. Dn Med533.11.1255 5B SF Bay High548.61.0936 TriNum W/L Low952.80.6297 Predom. Dn M/H474.81.2637 5B AP Low778.80.7704 TriNum W/L Med674.20.8900 Predom. Dn High425.91.4089 5B AP L/M614.60.9763 TriNum W/L Hig593.61.0107 ChiMac Up Low760.60.7889 5B AP Med539.11.1130 Predom. Upwind626.40.9578 ChiMac Up Med685.00.8759 5B AP M/H495.01.2121 Predom. Reaching542.11.1067 ChiMac Up High597.21.0047 5B AP High465.01.2904 Predom. Downwind573.71.0458 ChiMac Off Low723.00.8299 5B W/L Low1071.40.5600 Predom. Up Low869.50.6900 ChiMac Off Med639.00.9390 5B W/L L/M776.90.7723 Predom. Up L/M655.80.9149 ChiMac Off High536.71.1180 5B W/L Med663.70.9040 Predom. Up Med581.61.0317 ChiMac AP Low737.50.8136 5B W/L M/H603.80.9937 Predom. Up M/H545.21.1005 ChiMac AP Med659.20.9103 5B W/L High564.91.0621 Predom. Up High525.61.1416 ChiMac AP High565.51.0611 W/L 60-40 Low1083.40.5538 Predom. Rc Low749.90.8001 BayMac Cove Island852.30.7040 W/L 60-40 L/M789.40.7601 Predom. Rc L/M572.71.0476 BayMac Shore845.40.7097 W/L 60-40 Med679.00.8837 Predom. Rc Med508.81.1793 Harvest Moon477.11.2576 W/L 60-40 M/H623.70.9621 Predom. Rc M/H467.11.2846 5B SF Bay Low902.50.6648 W/L 60-40 High591.41.0146      SA/DSPL Up23.65SA/DSPL Dn49.55
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance597.81.0037
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1454.71002.8758.1634.8567.3530.2498.4442.3416.0
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance597.81.0037
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1454.71002.8758.1634.8567.3530.2498.4442.3416.0
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance597.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1454.71002.8758.1634.8567.3530.2498.4442.3416.0
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating597.81.0037
FinRating, kevyt tuuli1052.70.9499
FinRating, kova tuuli465.71.0737
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance1.0037
Triple Number Coastal/Long Distance Low0.8544
Triple Number Coastal/Long Distance Medium1.0985
Triple Number Coastal/Long Distance High1.2320
Triple Number Windward/Leeward Low0.6609
Triple Number Windward/Leeward Medium0.8900
Triple Number Windward/Leeward High1.0107
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1454.71002.8758.1634.8567.3530.2498.4442.3416.0
For information
General Purpose Handicap (GPH)615.9
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance597.81.0037
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Saronikos S All Purpose628.90.9540
Saronikos S Upwind718.80.8347
Saronikos S Downwind515.71.1635
Saronikos N All Purpose661.30.9073
Saronikos N Upwind751.80.7981
Saronikos N Downwind566.21.0597
Saronikos SW All Purpose630.10.9523
Saronikos SW Upwind737.90.8131
Saronikos SW Downwind519.71.1546
Saronikos NE All Purpose682.10.8796
Saronikos NE Upwind702.20.8545
Saronikos NE Downwind633.90.9466
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1454.71002.8758.1634.8567.3530.2498.4442.3416.0
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose571.21.0505
5-Band All Purpose Low849.50.7063
5-Band All Purpose L/M635.40.9443
5-Band All Purpose Med556.31.0785
5-Band All Purpose M/H509.91.1768
5-Band All Purpose High476.31.2597
Single Number Predominant Upwind598.81.0020
Single Number Predominant Reaching521.91.1495
Single Number Predominant Downwind551.31.0883
5-Band 50-50 Windward/Leeward Low1071.40.5600
5-Band 50-50 Windward/Leeward L/M776.90.7723
5-Band 50-50 Windward/Leeward Med663.70.9040
5-Band 50-50 Windward/Leeward M/H603.80.9937
5-Band 50-50 Windward/Leeward High564.91.0621
5-Band 60-40 Windward/Leeward Low1083.40.5538
5-Band 60-40 Windward/Leeward L/M789.40.7601
5-Band 60-40 Windward/Leeward Med679.00.8837
5-Band 60-40 Windward/Leeward M/H623.70.9621
5-Band 60-40 Windward/Leeward High591.41.0146
Triple Number 50-50 Windward/Leeward Low952.80.6297
Triple Number 50-50 Windward/Leeward Med674.20.8899
Triple Number 50-50 Windward/Leeward High593.61.0107
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward695.60.8626
Triple Number 60-40 Windward/Leeward Low964.50.6221
Triple Number 60-40 Windward/Leeward Med689.00.8709
Triple Number 60-40 Windward/Leeward High614.90.9757
Triple Number All-Purpose Low762.00.7874
Triple Number All-Purpose Med563.81.0642
Triple Number All-Purpose High501.01.1976
Triple Number Predominant Upwind Low787.30.7621
Triple Number Predominant Upwind Med590.51.0160
Triple Number Predominant Upwind High546.61.0978
Triple Number Predominant Reaching Low682.10.8796
Triple Number Predominant Reaching Med524.31.1443
Triple Number Predominant Reaching High449.11.3359
Triple Number Predominant Downwind Low750.50.7995
Triple Number Predominant Downwind Med541.81.1075
Triple Number Predominant Downwind High451.31.3296
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance597.81.0037
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1454.71002.8758.1634.8567.3530.2498.4442.3416.0
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance597.81.0037
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1454.71002.8758.1634.8567.3530.2498.4442.3416.0
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low702.2
Triple Number Coastal/Long Distance Medium546.2
Triple Number Coastal/Long Distance High487.0
Triple Number Windward/Leeward Low907.9
Triple Number Windward/Leeward Medium674.2
Triple Number Windward/Leeward High593.6
Predominantly Upwind599.9
Predominantly Downwind550.5
Predominantly Reaching528.8
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance597.81.0037
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1454.71002.8758.1634.8567.3530.2498.4442.3416.0
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8544
Triple Number Coastal/Long Distance Medium1.0985
Triple Number Coastal/Long Distance High1.2320
Triple Number Windward/Leeward Low0.6609
Triple Number Windward/Leeward Medium0.8900
Triple Number Windward/Leeward High1.0107
Coastal/Long Distance1.0037
Predominantly Upwind1.0002
Predominantly Downwind1.0900
For information
General Purpose Handicap (GPH)615.9
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0923
Distanseseilas Trippeltall svak vind0.8544
Distanseseilas Trippeltall mellomvind1.0985
Distanseseilas Trippeltall sterk vind1.2320
Pølsebane Trippeltall svak vind0.6609
Pølsebane Trippeltall mellomvind0.8900
Pølsebane Trippeltall sterk vind1.0107
Motvind Singeltall1.0002
Medvind Singeltall1.0900
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Coastal/Long Distance597.81.0037
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind599.91.0002
Predominantly Downwind550.51.0900
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore538.51.1142
Cape Doctor Coastal447.01.3422
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8544
Triple Number Coastal/Long Distance Medium1.0985
Triple Number Coastal/Long Distance High1.2320
Triple Number Windward/Leeward Low0.6609
Triple Number Windward/Leeward Medium0.8900
Triple Number Windward/Leeward High1.0107
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8544
Triple Number Coastal/Long Distance Medium1.0985
Triple Number Coastal/Long Distance High1.2320
Triple Number Windward/Leeward Low0.6609
Triple Number Windward/Leeward Medium0.8900
Triple Number Windward/Leeward High1.0107
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance597.81.0037
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Predominantly Upwind599.91.0002
Predominantly Downwind550.51.0900
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1454.71002.8758.1634.8567.3530.2498.4442.3416.0
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance597.81.0037
Triple Number Coastal/Long Distance Low702.20.8544
Triple Number Coastal/Long Distance Medium546.21.0985
Triple Number Coastal/Long Distance High487.01.2320
Triple Number Windward/Leeward Low907.90.6609
Triple Number Windward/Leeward Medium674.20.8900
Triple Number Windward/Leeward High593.61.0107
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1454.71002.8758.1634.8567.3530.2498.4442.3416.0
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP571.21.0505 Predom. Dn High425.91.4089 5B AP M/H495.01.2121 TriNum AP Low702.20.8544 Predom. Rc Low749.90.8001 5B AP High465.01.2904 TriNum AP Med546.31.0983 Predom. Rc L/M572.71.0476 5B SF Bay Low902.50.6648 TriNum AP High487.01.2320 Predom. Rc Med508.81.1793 5B SF Bay L/M741.20.8095 TriNum W/L Low952.80.6297 Predom. Rc M/H467.11.2846 5B SF Bay Med639.90.9377 TriNum W/L Med674.20.8900 Predom. Rc High434.11.3821 5B SF Bay M/H584.21.0270 TriNum W/L Hig593.61.0107 5B W/L Low1071.40.5600 5B SF Bay High548.61.0936 Predom. Upwind626.40.9578 5B W/L L/M776.90.7723 ChiMac Up Low760.60.7889 Predom. Reaching542.11.1067 5B W/L Med663.70.9040 ChiMac Up Med685.00.8759 Predom. Downwind573.71.0458 5B W/L M/H603.80.9937 ChiMac Up High597.21.0047 Predom. Up Low869.50.6900 5B W/L High564.91.0621 ChiMac Off Low723.00.8299 Predom. Up L/M655.80.9149 W/L 60-40 Low1083.40.5538 ChiMac Off Med639.00.9390 Predom. Up Med581.61.0317 W/L 60-40 L/M789.40.7601 ChiMac Off High536.71.1180 Predom. Up M/H545.21.1005 W/L 60-40 Med679.00.8837 ChiMac AP Low737.50.8136 Predom. Up High525.61.1416 W/L 60-40 M/H623.70.9621 ChiMac AP Med659.20.9103 Predom. Dn Low840.30.7141 W/L 60-40 High591.41.0146 ChiMac AP High565.51.0611 Predom. Dn L/M619.60.9683 5B AP Low778.80.7704 BayMac Cove Island852.30.7040 Predom. Dn Med533.11.1255 5B AP L/M614.60.9763 BayMac Shore845.40.7097 Predom. Dn M/H474.81.2637 5B AP Med539.11.1130 Harvest Moon477.11.2576      SA/DSPL Up23.65SA/DSPL Dn49.55
ORC Ref  04560004RU5 Issued on 02/06/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
SOUTHBOUNDUSA 423
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ 105Measurement01/01/2020HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall10.570Maximum beam3.344Draft2.004Displacement3,891Wetted area22.69IMS L9.476LSM09.424Accomod. length10.570Sink (kg/mm) 17.00
VCGD-0.159VCGM-0.175 RM Rated (kg·m) 103.3Limit of positive stability(°) 123.6 Stability Index 121.0 BLR index 0.0000Default crew weight170 Declared crew weight 152
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  04560004RU5 Issued on 02/06/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
SOUTHBOUNDUSA 423
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMn0.160.931.682.893.7833.7117/02/2022167631
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJib0.080.561.042.023.074.1512.15YesNo 25.0617/05/2022167632
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA215.1312.0913.617.967.59105%89.4417/02/202216763A013.9512.4513.206.388.4875%74.8015/05/2024187726
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
ORC Ref  04560004RU5 Issued on 02/06/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org