International Certificate2026
ThoraLAT-637
Latvijas Jūras
burāšanas asociācija
Grecinieku street 11A-5, Riga
Riga LV-1050 Latvia
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 Angles46.5°43.7°41.5°39.3°37.9°37.6°37.4°37.4°38.6°
Beat VMG2.553.634.445.015.285.415.495.555.48
52°4.025.566.587.167.437.557.627.707.71
60°4.345.876.837.337.607.757.847.957.96
75°4.576.076.997.477.788.028.188.378.47
90°4.436.087.147.587.848.128.398.809.07
110°4.496.297.367.928.338.628.909.449.93
120°4.366.177.307.898.408.879.3110.1511.10
135°3.875.506.827.578.108.659.2710.9212.88
150°3.204.635.826.847.547.998.449.5612.01
Run VMG2.774.015.045.926.576.997.378.2810.40
Gybe Angles139.4°142.8°146.9°149.2°153.3°156.6°158.6°145.1°143.1°
APH ToD:523.3CDL: 9.857APH ToT: 1.1466CertNo:021/26
BOAT
ClassJ-112EDesignerJohnstoneBuilderJ/CompositesAge date05/2022Series date10/2015Offset fileJ112-LAT637.offData fileLAT-637
HULL
Length Overall11.000 mMaximum Beam3.598 mDraft2.046 mDisplacement5,164 kgDLR5.7593IMS DivisionCruiser/RacerDynamic Allowance0.100%Age Allowance0.357%RS Assessment-0.127%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.410m
CREW
Maximum weight795 kg(declared)Minimum weight665 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail40.2341.16Headsail Luffed34.8634.86Headsail FlyingSymmetricAsymmetric136.87136.87 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS Maximum (m²)
Trysail11.30Storm Jib11.15Heavy Weather Jib30.11
SAIL LIMITS
Headsails6Spinnakers5
STABILITY
Righting Moment 124.9 kg·m Stability Index 117.8
COMMENTS
new keel and rudder 2023
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  04960004VUB Issued on 31/07/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
ThoraLAT-637
Latvijas Jūras
burāšanas asociācija
Grecinieku street 11A-5, Riga
Riga LV-1050 Latvia
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 VMG1412.2992.2811.0719.1681.4665.3656.2648.8656.5
52°895.7647.2547.0502.9484.8477.1472.4467.3467.0
60°830.4612.9527.4490.8473.4464.6459.4453.0452.2
75°788.1592.9515.2482.1462.5449.1440.3430.1424.9
90°812.6591.8504.1474.9459.5443.4429.1409.1397.1
110°801.4572.6489.1454.8432.4417.6404.7381.2362.4
120°826.3583.5493.4456.0428.8405.8386.6354.5324.3
135°930.1654.3527.9475.5444.4416.0388.3329.6279.5
150°1124.8777.5618.9526.7477.4450.4426.4376.6299.7
Run VMG1298.8897.8714.6608.1547.6515.0488.4434.8346.1
Selected Courses
Windward / Leeward1355.5945.0762.8663.6614.5590.2572.3541.8501.3
All purpose1026.3726.9599.9538.2506.7487.9473.2448.1422.9
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward642.90.9332
All purpose523.31.1466
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance568.51.0555
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1349.8940.3717.4601.9539.4506.0477.6429.7403.8
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.8118
Downwind "popa"0.9985
70% up, 30% down "Ilhabela"0.8600
30% up, 70% down "Ilhabela-inverso"0.9340
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Predominantly Upwind568.71.0550
Predominantly Downwind526.11.1404
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP544.41.1022 Predom. Rc High419.41.4308 5B SF Bay L/M698.80.8587 TriNum AP Low663.40.9045 Predom. Dn Low793.10.7565 5B SF Bay Med605.00.9917 TriNum AP Med520.31.1531 Predom. Dn L/M589.71.0174 5B SF Bay M/H555.21.0808 TriNum AP High467.51.2835 Predom. Dn Med510.11.1762 5B SF Bay High524.01.1450 TriNum W/L Low894.10.6710 Predom. Dn M/H457.61.3111 5B AP Low732.90.8187 TriNum W/L Med637.10.9417 Predom. Dn High414.91.4460 5B AP L/M583.11.0290 TriNum W/L Hig565.31.0613 ChiMac Up Low716.00.8380 5B AP Med513.71.1679 Predom. Upwind592.81.0122 ChiMac Up Med646.70.9278 5B AP M/H474.31.2651 Predom. Reaching520.01.1538 ChiMac Up High566.11.0599 5B AP High448.11.3390 Predom. Downwind548.01.0949 ChiMac Off Low685.20.8757 5B W/L Low1002.10.5988 Predom. Up Low815.30.7359 ChiMac Off Med608.00.9868 5B W/L L/M732.80.8188 Predom. Up L/M620.20.9674 ChiMac Off High514.41.1663 5B W/L Med627.40.9563 Predom. Up Med551.91.0872 ChiMac AP Low697.80.8598 5B W/L M/H573.71.0458 Predom. Up M/H518.11.1582 ChiMac AP Med625.60.9592 5B W/L High540.11.1110 Predom. Up High499.91.2003 ChiMac AP High539.41.1124 W/L 60-40 Low1012.00.5929 Predom. Rc Low714.70.8395 BayMac Cove Island801.60.7485 W/L 60-40 L/M743.40.8071 Predom. Rc L/M548.31.0942 BayMac Shore796.00.7538 W/L 60-40 Med640.60.9366 Predom. Rc Med488.81.2274 Harvest Moon460.61.3026 W/L 60-40 M/H590.71.0158 Predom. Rc M/H449.21.3356 5B SF Bay Low846.50.7088 W/L 60-40 High562.31.0670      SA/DSPL Up25.00SA/DSPL Dn58.96
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance568.51.0555
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1349.8940.3717.4601.9539.4506.0477.6429.7403.8
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance568.51.0555
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1349.8940.3717.4601.9539.4506.0477.6429.7403.8
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance568.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1349.8940.3717.4601.9539.4506.0477.6429.7403.8
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating568.51.0555
FinRating, kevyt tuuli985.01.0152
FinRating, kova tuuli448.81.1142
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance1.0555
Triple Number Coastal/Long Distance Low0.9045
Triple Number Coastal/Long Distance Medium1.1532
Triple Number Coastal/Long Distance High1.2835
Triple Number Windward/Leeward Low0.7027
Triple Number Windward/Leeward Medium0.9417
Triple Number Windward/Leeward High1.0613
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1349.8940.3717.4601.9539.4506.0477.6429.7403.8
For information
General Purpose Handicap (GPH)585.4
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance568.51.0555
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Saronikos S All Purpose596.91.0051
Saronikos S Upwind677.10.8861
Saronikos S Downwind496.71.2079
Saronikos N All Purpose624.90.9602
Saronikos N Upwind707.80.8477
Saronikos N Downwind539.81.1115
Saronikos SW All Purpose598.41.0026
Saronikos SW Upwind696.70.8612
Saronikos SW Downwind498.41.2038
Saronikos NE All Purpose644.50.9309
Saronikos NE Upwind665.10.9021
Saronikos NE Downwind601.10.9982
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1349.8940.3717.4601.9539.4506.0477.6429.7403.8
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose544.41.1022
5-Band All Purpose Low801.00.7490
5-Band All Purpose L/M603.70.9939
5-Band All Purpose Med530.61.1308
5-Band All Purpose M/H487.81.2299
5-Band All Purpose High458.01.3102
Single Number Predominant Upwind567.81.0568
Single Number Predominant Reaching500.71.1983
Single Number Predominant Downwind526.81.1389
5-Band 50-50 Windward/Leeward Low1002.10.5988
5-Band 50-50 Windward/Leeward L/M732.80.8188
5-Band 50-50 Windward/Leeward Med627.40.9563
5-Band 50-50 Windward/Leeward M/H573.71.0458
5-Band 50-50 Windward/Leeward High540.11.1110
5-Band 60-40 Windward/Leeward Low1012.00.5929
5-Band 60-40 Windward/Leeward L/M743.40.8071
5-Band 60-40 Windward/Leeward Med640.60.9366
5-Band 60-40 Windward/Leeward M/H590.71.0158
5-Band 60-40 Windward/Leeward High562.31.0670
Triple Number 50-50 Windward/Leeward Low894.10.6710
Triple Number 50-50 Windward/Leeward Med637.20.9416
Triple Number 50-50 Windward/Leeward High565.31.0613
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward656.40.9141
Triple Number 60-40 Windward/Leeward Low904.00.6637
Triple Number 60-40 Windward/Leeward Med649.90.9232
Triple Number 60-40 Windward/Leeward High583.41.0285
Triple Number All-Purpose Low720.40.8328
Triple Number All-Purpose Med537.51.1163
Triple Number All-Purpose High480.11.2496
Triple Number Predominant Upwind Low741.20.8095
Triple Number Predominant Upwind Med560.11.0712
Triple Number Predominant Upwind High518.91.1564
Triple Number Predominant Reaching Low650.30.9227
Triple Number Predominant Reaching Med502.71.1935
Triple Number Predominant Reaching High432.91.3859
Triple Number Predominant Downwind Low710.30.8447
Triple Number Predominant Downwind Med518.51.1573
Triple Number Predominant Downwind High437.41.3717
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance568.51.0555
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1349.8940.3717.4601.9539.4506.0477.6429.7403.8
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance568.51.0555
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1349.8940.3717.4601.9539.4506.0477.6429.7403.8
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low663.3
Triple Number Coastal/Long Distance Medium520.3
Triple Number Coastal/Long Distance High467.5
Triple Number Windward/Leeward Low853.8
Triple Number Windward/Leeward Medium637.1
Triple Number Windward/Leeward High565.3
Predominantly Upwind568.7
Predominantly Downwind526.1
Predominantly Reaching507.0
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance568.51.0555
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1349.8940.3717.4601.9539.4506.0477.6429.7403.8
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.9045
Triple Number Coastal/Long Distance Medium1.1532
Triple Number Coastal/Long Distance High1.2835
Triple Number Windward/Leeward Low0.7027
Triple Number Windward/Leeward Medium0.9417
Triple Number Windward/Leeward High1.0613
Coastal/Long Distance1.0555
Predominantly Upwind1.0550
Predominantly Downwind1.1404
For information
General Purpose Handicap (GPH)585.4
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.1466
Distanseseilas Trippeltall svak vind0.9045
Distanseseilas Trippeltall mellomvind1.1532
Distanseseilas Trippeltall sterk vind1.2835
Pølsebane Trippeltall svak vind0.7027
Pølsebane Trippeltall mellomvind0.9417
Pølsebane Trippeltall sterk vind1.0613
Motvind Singeltall1.0550
Medvind Singeltall1.1404
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Coastal/Long Distance568.51.0555
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind568.71.0550
Predominantly Downwind526.11.1404
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore513.41.1686
Cape Doctor Coastal430.51.3938
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.9045
Triple Number Coastal/Long Distance Medium1.1532
Triple Number Coastal/Long Distance High1.2835
Triple Number Windward/Leeward Low0.7027
Triple Number Windward/Leeward Medium0.9417
Triple Number Windward/Leeward High1.0613
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.9045
Triple Number Coastal/Long Distance Medium1.1532
Triple Number Coastal/Long Distance High1.2835
Triple Number Windward/Leeward Low0.7027
Triple Number Windward/Leeward Medium0.9417
Triple Number Windward/Leeward High1.0613
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance568.51.0555
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Predominantly Upwind568.71.0550
Predominantly Downwind526.11.1404
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1349.8940.3717.4601.9539.4506.0477.6429.7403.8
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance568.51.0555
Triple Number Coastal/Long Distance Low663.30.9045
Triple Number Coastal/Long Distance Medium520.31.1532
Triple Number Coastal/Long Distance High467.51.2835
Triple Number Windward/Leeward Low853.80.7027
Triple Number Windward/Leeward Medium637.10.9417
Triple Number Windward/Leeward High565.31.0613
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1349.8940.3717.4601.9539.4506.0477.6429.7403.8
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP544.41.1022 Predom. Dn High414.91.4460 5B AP M/H474.31.2651 TriNum AP Low663.40.9045 Predom. Rc Low714.70.8395 5B AP High448.11.3390 TriNum AP Med520.31.1531 Predom. Rc L/M548.31.0942 5B SF Bay Low846.50.7088 TriNum AP High467.51.2835 Predom. Rc Med488.81.2274 5B SF Bay L/M698.80.8587 TriNum W/L Low894.10.6710 Predom. Rc M/H449.21.3356 5B SF Bay Med605.00.9917 TriNum W/L Med637.10.9417 Predom. Rc High419.41.4308 5B SF Bay M/H555.21.0808 TriNum W/L Hig565.31.0613 5B W/L Low1002.10.5988 5B SF Bay High524.01.1450 Predom. Upwind592.81.0122 5B W/L L/M732.80.8188 ChiMac Up Low716.00.8380 Predom. Reaching520.01.1538 5B W/L Med627.40.9563 ChiMac Up Med646.70.9278 Predom. Downwind548.01.0949 5B W/L M/H573.71.0458 ChiMac Up High566.11.0599 Predom. Up Low815.30.7359 5B W/L High540.11.1110 ChiMac Off Low685.20.8757 Predom. Up L/M620.20.9674 W/L 60-40 Low1012.00.5929 ChiMac Off Med608.00.9868 Predom. Up Med551.91.0872 W/L 60-40 L/M743.40.8071 ChiMac Off High514.41.1663 Predom. Up M/H518.11.1582 W/L 60-40 Med640.60.9366 ChiMac AP Low697.80.8598 Predom. Up High499.91.2003 W/L 60-40 M/H590.71.0158 ChiMac AP Med625.60.9592 Predom. Dn Low793.10.7565 W/L 60-40 High562.31.0670 ChiMac AP High539.41.1124 Predom. Dn L/M589.71.0174 5B AP Low732.90.8187 BayMac Cove Island801.60.7485 Predom. Dn Med510.11.1762 5B AP L/M583.11.0290 BayMac Shore796.00.7538 Predom. Dn M/H457.61.3111 5B AP Med513.71.1679 Harvest Moon460.61.3026      SA/DSPL Up25.00SA/DSPL Dn58.96
ORC Ref  04960004VUB Issued on 31/07/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
ThoraLAT-637
Latvijas Jūras
burāšanas asociācija
Grecinieku street 11A-5, Riga
Riga LV-1050 Latvia
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-112EMeasurement13/06/2022HINPlan reviewHull constructionCoredCarbon rudderYesLight stanchionsNoTrim tabNo
Length overall11.000Maximum beam3.598Draft2.046Displacement5,164Wetted area25.41IMS L10.109LSM09.642Accomod. length11.000Sink (kg/mm) 18.77
VCGD0.011VCGM-0.029 RM Rated (kg·m) 124.9Limit of positive stability(°) 118.8 Stability Index 117.8 BLR index 0.0000Default crew weight653 Declared crew weight 795
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.410PBW0.105PIPA0.0038
EDL2.200ST10.065ST20.180
ST30.180ST40.110ST50.300
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P13.688IG14.880ISP15.950MDT10.108MDL10.178MDT20.105MDL20.155TL0.600MW0.165GO0.180
E4.715J4.260BAS1.700FSD0.037SFJ0.223SPLWPLTPS6.368BD0.160MWT106.00MCG4.380
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodBoom incliningFlotation Date20/06/2026
SFFP0.488FFM1.324FF1.331LCFcl5.889SG1.0000
SAFP10.805FAM1.032FA1.040LCFsh6.154HBI1.140
W195.3W295.3W395.3W495.3LCFD6.407
PD1263.9PD2266.4PD3274.4PD4260.6
WD4.380PLM9000.00GSA1.0RSA1.0RM123.5
INVENTORY
BALLASTIdKindDescriptionWeightLCGVCGTCG#Fixed1Fixed4pcs (17+23+20,7+20,5)824.24#Fixed2 pcs (20,5+21,5)424.88#Fixed4 pcs (19,6+20,5+21,5+12)745.38#Fixed4 pcs (25+19+21)655.88#Fixed1pcs (32)326.78Fixed Ballast Total295
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG1FuelFuel80148.672Water Plastic tank at the bowWater20002.09Total deductible128.67
OTHER ITEMSIdKindDescriptionWeightLCGVCG3MiscellaneousAutohelm Port10.001BatteryStarboard 1 service victron energy4.702BatteryCL 1 engine victron energy7.104Engine (IC)Volvo Penta D1-30Total deductible
ORC Ref  04960004VUB Issued on 31/07/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
ThoraLAT-637
Latvijas Jūras
burāšanas asociācija
Grecinieku street 11A-5, Riga
Riga LV-1050 Latvia
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM10.571.231.953.154.0340.2309/03/2022M20.571.141.792.943.8738.4026/06/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ1 (2025)0.080.841.542.623.564.4814.07YesNo 34.8626/05/2025Spai Sail0.030.711.392.673.704.4414.03NoInner 34.6718/04/2024Jib 2 (2023)0.090.911.472.433.434.4214.03YesNo 33.5626/06/2023Jib 30.180.671.202.293.374.3813.47YesNo 30.6209/03/2022
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA2 (2025)18.7214.5216.6210.049.25109%136.8713/06/2025A1 (2025)17.8314.9216.389.2510.2590%128.9513/06/2025A2 (2024)18.3114.5616.449.598.54112%128.4726/06/2023A418.2713.8416.069.378.78107%123.7829/08/2022A317.7613.8515.818.039.4985%109.6130/03/2022
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length11.0 mTable area0.55 m²Headroom1.76 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity125 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity70 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04960004VUB Issued on 31/07/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org