Double HandedClub Certificate2026
MELANTHOUSA 39
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°42.7°40.8°39.7°39.1°39.5°39.7°40.7°43.5°
Beat VMG2.343.314.014.454.644.714.754.714.49
52°3.665.005.916.446.676.766.816.846.74
60°3.925.266.146.636.866.977.047.087.02
75°4.145.576.406.787.067.247.377.507.53
90°4.405.856.677.067.267.417.597.928.11
110°4.295.916.827.287.557.898.208.698.88
120°4.185.836.807.327.758.098.389.2310.06
135°3.725.226.417.097.598.128.7110.1311.40
150°3.094.435.546.457.087.527.979.1311.63
Run VMG2.673.844.795.596.176.566.937.9010.08
Gybe Angles140.1°144.0°148.0°149.8°153.7°157.0°154.1°144.0°145.4°
APH ToD:574.5CDL: 7.864APH ToT: 1.0444CertNo:US39-97
BOAT
ClassJ-97DesignerJOHNSTONEBuilderJ BoatsAge date01/2012Series date06/2009Offset fileJ97.offData fileUS39-97
HULL
Length Overall9.600 mMaximum Beam3.348 mDraft1.898 mDisplacement3,612 kgDLR6.8923IMS DivisionCruiser/RacerDynamic Allowance0.190%Age Allowance0.552%RS Assessment-0.356%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.300m
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail28.4628.97Headsail Luffed23.8223.82Headsail FlyingSymmetricAsymmetric109.92109.92 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS Maximum (m²)
Trysail8.35Storm Jib8.12Heavy Weather Jib21.92
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 83.0 kg·m Stability Index 124.2
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  04560004QUO Issued on 22/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
MELANTHOUSA 39
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 VMG1539.51088.7898.7809.8775.9763.6758.5764.3802.1
52°984.2719.4608.8559.4539.8532.4528.4526.7533.9
60°918.0684.6586.5543.3524.5516.1511.7508.2513.2
75°869.3646.0562.1531.3510.0496.9488.7480.2478.0
90°818.1615.7539.6510.3495.9485.6474.1454.3443.8
110°838.9608.9527.8494.8477.1456.3439.1414.3405.4
120°862.3617.7529.8492.1464.4445.0429.4390.0357.9
135°967.3689.2561.9507.9474.1443.2413.2355.2315.8
150°1166.2812.8650.4558.0508.5479.0451.5394.5309.4
Run VMG1346.6938.6751.0644.3583.3549.0519.6455.5357.3
Selected Courses
Windward / Leeward1443.11013.6824.8727.0679.6656.3639.1609.9579.7
All purpose1090.0780.7650.4588.5557.8539.3524.9500.8483.8
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward708.10.8473
All purpose574.51.0444
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1433.41006.1775.2658.2594.4560.3530.7476.8453.4
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7168
Downwind "popa"0.9457
70% up, 30% down "Ilhabela"0.7729
30% up, 70% down "Ilhabela-inverso"0.8630
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Predominantly Upwind630.20.9521
Predominantly Downwind566.91.0584
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP596.31.0062 Predom. Rc High466.31.2868 5B SF Bay L/M762.00.7874 TriNum AP Low715.50.8385 Predom. Dn Low837.90.7161 5B SF Bay Med669.10.8967 TriNum AP Med571.21.0505 Predom. Dn L/M631.70.9498 5B SF Bay M/H621.40.9655 TriNum AP High519.51.1550 Predom. Dn Med550.91.0892 5B SF Bay High594.51.0092 TriNum W/L Low961.80.6238 Predom. Dn M/H497.11.2069 5B AP Low784.30.7651 TriNum W/L Med701.70.8551 Predom. Dn High453.81.3221 5B AP L/M634.10.9463 TriNum W/L Hig632.40.9487 ChiMac Up Low781.50.7677 5B AP Med564.71.0625 Predom. Upwind656.50.9139 ChiMac Up Med711.20.8436 5B AP M/H526.01.1406 Predom. Reaching563.81.0642 ChiMac Up High630.60.9514 5B AP High502.01.1951 Predom. Downwind589.31.0182 ChiMac Off Low728.60.8235 5B W/L Low1073.80.5588 Predom. Up Low883.50.6791 ChiMac Off Med650.20.9227 5B W/L L/M796.70.7531 Predom. Up L/M681.60.8803 ChiMac Off High555.21.0807 5B W/L Med692.30.8667 Predom. Up Med613.00.9789 ChiMac AP Low751.20.7987 5B W/L M/H640.50.9368 Predom. Up M/H582.11.0307 ChiMac AP Med678.20.8847 5B W/L High609.70.9840 Predom. Up High569.71.0531 ChiMac AP High591.71.0140 W/L 60-40 Low1089.80.5505 Predom. Rc Low757.70.7918 BayMac Cove Island862.00.6961 W/L 60-40 L/M812.80.7382 Predom. Rc L/M591.61.0143 BayMac Shore855.80.7011 W/L 60-40 Med711.50.8433 Predom. Rc Med532.01.1278 Harvest Moon501.41.1968 W/L 60-40 M/H664.70.9026 Predom. Rc M/H494.01.2146 5B SF Bay Low912.70.6574 W/L 60-40 High641.70.9349      SA/DSPL Up22.12SA/DSPL Dn58.53
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1433.41006.1775.2658.2594.4560.3530.7476.8453.4
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1433.41006.1775.2658.2594.4560.3530.7476.8453.4
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance623.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1433.41006.1775.2658.2594.4560.3530.7476.8453.4
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating623.70.9620
FinRating, kevyt tuuli1052.60.9500
FinRating, kova tuuli503.50.9931
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9620
Triple Number Coastal/Long Distance Low0.8385
Triple Number Coastal/Long Distance Medium1.0506
Triple Number Coastal/Long Distance High1.1550
Triple Number Windward/Leeward Low0.6527
Triple Number Windward/Leeward Medium0.8551
Triple Number Windward/Leeward High0.9487
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1433.41006.1775.2658.2594.4560.3530.7476.8453.4
For information
General Purpose Handicap (GPH)639.7
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Saronikos S All Purpose654.70.9165
Saronikos S Upwind751.70.7981
Saronikos S Downwind527.21.1381
Saronikos N All Purpose688.50.8715
Saronikos N Upwind785.90.7635
Saronikos N Downwind574.51.0444
Saronikos SW All Purpose653.00.9188
Saronikos SW Upwind766.00.7832
Saronikos SW Downwind531.91.1281
Saronikos NE All Purpose703.10.8533
Saronikos NE Upwind731.70.8201
Saronikos NE Downwind637.90.9406
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1433.41006.1775.2658.2594.4560.3530.7476.8453.4
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose596.31.0062
5-Band All Purpose Low855.90.7010
5-Band All Purpose L/M654.70.9164
5-Band All Purpose Med581.31.0323
5-Band All Purpose M/H539.81.1116
5-Band All Purpose High512.41.1709
Single Number Predominant Upwind629.20.9536
Single Number Predominant Reaching544.21.1025
Single Number Predominant Downwind567.71.0568
5-Band 50-50 Windward/Leeward Low1073.80.5588
5-Band 50-50 Windward/Leeward L/M796.70.7531
5-Band 50-50 Windward/Leeward Med692.30.8667
5-Band 50-50 Windward/Leeward M/H640.50.9368
5-Band 50-50 Windward/Leeward High609.70.9840
5-Band 60-40 Windward/Leeward Low1089.80.5505
5-Band 60-40 Windward/Leeward L/M812.80.7382
5-Band 60-40 Windward/Leeward Med711.50.8433
5-Band 60-40 Windward/Leeward M/H664.70.9026
5-Band 60-40 Windward/Leeward High641.70.9349
Triple Number 50-50 Windward/Leeward Low961.80.6238
Triple Number 50-50 Windward/Leeward Med701.80.8550
Triple Number 50-50 Windward/Leeward High632.40.9487
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward727.70.8246
Triple Number 60-40 Windward/Leeward Low977.40.6139
Triple Number 60-40 Windward/Leeward Med720.30.8330
Triple Number 60-40 Windward/Leeward High658.30.9114
Triple Number All-Purpose Low773.60.7756
Triple Number All-Purpose Med588.11.0202
Triple Number All-Purpose High532.41.1269
Triple Number Predominant Upwind Low804.90.7454
Triple Number Predominant Upwind Med621.00.9662
Triple Number Predominant Upwind High586.71.0226
Triple Number Predominant Reaching Low694.70.8637
Triple Number Predominant Reaching Med547.61.0956
Triple Number Predominant Reaching High476.61.2589
Triple Number Predominant Downwind Low754.40.7953
Triple Number Predominant Downwind Med558.11.0752
Triple Number Predominant Downwind High473.01.2684
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1433.41006.1775.2658.2594.4560.3530.7476.8453.4
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1433.41006.1775.2658.2594.4560.3530.7476.8453.4
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low715.6
Triple Number Coastal/Long Distance Medium571.1
Triple Number Coastal/Long Distance High519.5
Triple Number Windward/Leeward Low919.3
Triple Number Windward/Leeward Medium701.7
Triple Number Windward/Leeward High632.4
Predominantly Upwind630.2
Predominantly Downwind566.9
Predominantly Reaching548.7
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1433.41006.1775.2658.2594.4560.3530.7476.8453.4
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8385
Triple Number Coastal/Long Distance Medium1.0506
Triple Number Coastal/Long Distance High1.1550
Triple Number Windward/Leeward Low0.6527
Triple Number Windward/Leeward Medium0.8551
Triple Number Windward/Leeward High0.9487
Coastal/Long Distance0.9620
Predominantly Upwind0.9521
Predominantly Downwind1.0584
For information
General Purpose Handicap (GPH)639.7
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0444
Distanseseilas Trippeltall svak vind0.8385
Distanseseilas Trippeltall mellomvind1.0506
Distanseseilas Trippeltall sterk vind1.1550
Pølsebane Trippeltall svak vind0.6527
Pølsebane Trippeltall mellomvind0.8551
Pølsebane Trippeltall sterk vind0.9487
Motvind Singeltall0.9521
Medvind Singeltall1.0584
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Coastal/Long Distance623.70.9620
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind630.20.9521
Predominantly Downwind566.91.0584
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore588.81.0191
Cape Doctor Coastal488.91.2273
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8385
Triple Number Coastal/Long Distance Medium1.0506
Triple Number Coastal/Long Distance High1.1550
Triple Number Windward/Leeward Low0.6527
Triple Number Windward/Leeward Medium0.8551
Triple Number Windward/Leeward High0.9487
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8385
Triple Number Coastal/Long Distance Medium1.0506
Triple Number Coastal/Long Distance High1.1550
Triple Number Windward/Leeward Low0.6527
Triple Number Windward/Leeward Medium0.8551
Triple Number Windward/Leeward High0.9487
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Predominantly Upwind630.20.9521
Predominantly Downwind566.91.0584
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1433.41006.1775.2658.2594.4560.3530.7476.8453.4
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low715.60.8385
Triple Number Coastal/Long Distance Medium571.11.0506
Triple Number Coastal/Long Distance High519.51.1550
Triple Number Windward/Leeward Low919.30.6527
Triple Number Windward/Leeward Medium701.70.8551
Triple Number Windward/Leeward High632.40.9487
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1433.41006.1775.2658.2594.4560.3530.7476.8453.4
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP596.31.0062 Predom. Dn High453.81.3221 5B AP M/H526.01.1406 TriNum AP Low715.50.8385 Predom. Rc Low757.70.7918 5B AP High502.01.1951 TriNum AP Med571.21.0505 Predom. Rc L/M591.61.0143 5B SF Bay Low912.70.6574 TriNum AP High519.51.1550 Predom. Rc Med532.01.1278 5B SF Bay L/M762.00.7874 TriNum W/L Low961.80.6238 Predom. Rc M/H494.01.2146 5B SF Bay Med669.10.8967 TriNum W/L Med701.70.8551 Predom. Rc High466.31.2868 5B SF Bay M/H621.40.9655 TriNum W/L Hig632.40.9487 5B W/L Low1073.80.5588 5B SF Bay High594.51.0092 Predom. Upwind656.50.9139 5B W/L L/M796.70.7531 ChiMac Up Low781.50.7677 Predom. Reaching563.81.0642 5B W/L Med692.30.8667 ChiMac Up Med711.20.8436 Predom. Downwind589.31.0182 5B W/L M/H640.50.9368 ChiMac Up High630.60.9514 Predom. Up Low883.50.6791 5B W/L High609.70.9840 ChiMac Off Low728.60.8235 Predom. Up L/M681.60.8803 W/L 60-40 Low1089.80.5505 ChiMac Off Med650.20.9227 Predom. Up Med613.00.9789 W/L 60-40 L/M812.80.7382 ChiMac Off High555.21.0807 Predom. Up M/H582.11.0307 W/L 60-40 Med711.50.8433 ChiMac AP Low751.20.7987 Predom. Up High569.71.0531 W/L 60-40 M/H664.70.9026 ChiMac AP Med678.20.8847 Predom. Dn Low837.90.7161 W/L 60-40 High641.70.9349 ChiMac AP High591.71.0140 Predom. Dn L/M631.70.9498 5B AP Low784.30.7651 BayMac Cove Island862.00.6961 Predom. Dn Med550.91.0892 5B AP L/M634.10.9463 BayMac Shore855.80.7011 Predom. Dn M/H497.11.2069 5B AP Med564.71.0625 Harvest Moon501.41.1968      SA/DSPL Up22.12SA/DSPL Dn58.53
ORC Ref  04560004QUO Issued on 22/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
MELANTHOUSA 39
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-97MeasurementHINJBC97039F112Plan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9.600Maximum beam3.348Draft1.898Displacement3,612Wetted area19.48IMS L8.319LSM08.062Accomod. length9.600Sink (kg/mm) 14.54
VCGD-0.102VCGM-0.101 RM Rated (kg·m) 83.0Limit of positive stability(°) 128.4 Stability Index 124.2 BLR index 0.0000Default crew weight170 Declared crew weight 536
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.300PBWPIPA0.0038
EDL1.670ST10.065ST20.181
ST30.181ST40.111ST50.356
RIG
BackstayAdjustable (NMP)ForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P12.040IG12.598ISP13.598MDT10.111MDL10.181MDT20.111MDL20.100TL0.851MW0.181GO0.221
E3.963J3.570BAS1.507FSD0.035SFJ0.100SPLWPLTPS5.080BD0.121MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered83.0Flotation Date29/06/2015
SFFP0.600FFM1.251FF1.251LCFcl5.173SG
SAFP9.303FAM0.938FA0.938LCFsh5.426HBI1.111
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04560004QUO Issued on 22/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
MELANTHOUSA 39
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMn0.130.811.502.573.3428.4612/01/2026OUS163867-003
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJib0.083.8312.21NoNo 23.82
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA215.4813.4914.499.119.09100%109.9207/03/2025A014.2613.2413.755.717.5476%69.6207/03/2026
NON MANUAL POWER CONTROLS (NMP)
SheetsYesMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsYes
CRUISER/RACER REQUIREMENTS*
Accommodation length9.6 mTable area0.44 m²Headroom1.67 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity72 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity42 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04560004QUO Issued on 22/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org