Club Certificate2026
ON THE ROCKSSITA 1204
Turkiye
Sailing
Federation
www.tyf.org.tr/
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 Angles45.8°43.7°41.9°40.1°38.0°37.0°37.0°37.9°39.7°
Beat VMG2.103.023.704.194.524.664.704.684.58
52°3.284.615.526.036.346.556.656.736.71
60°3.524.875.736.196.546.836.977.127.13
75°3.705.035.866.336.767.187.517.878.04
90°3.855.386.246.777.087.367.808.749.23
110°3.945.496.387.117.838.398.899.8710.85
120°3.835.366.266.987.828.779.5910.9512.53
135°3.394.835.876.557.238.089.1612.6014.83
150°2.824.095.155.956.537.097.8310.6514.29
Run VMG2.443.544.465.165.676.146.789.2212.38
Gybe Angles140.3°143.9°148.0°151.5°151.9°149.4°145.2°138.7°144.3°
APH ToD:596.4CDL: 6.892APH ToT: 1.0060CertNo:
BOAT
ClassJ-70 ONE DESIGNDesignerJOHNSTONEBuilderJ BOATSAge date02/2013Series date02/2012Offset fileJ-70.OD.OFFData fileTUR1081
HULL
Length Overall6.942 mMaximum Beam2.260 mDraft1.450 mDisplacement812 kgDLR3.3788IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.455%RS Assessment-0.127%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight375 kg(declared)Minimum weight245 kg ✱ when appliedCrew Arm ExtensionLoose or no lifelines
SAIL AREAS (m²)
MeasuredRatedMainsail15.4616.09Headsail Luffed10.0010.00Headsail FlyingSymmetricAsymmetric45.6445.64 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS Maximum (m²)
Trysail4.02Storm Jib3.39Heavy Weather Jib9.13
SAIL LIMITS
Headsails5
✱ One set on the forestay
✱ Woven polyester sails
Spinnakers4
STABILITY
Righting Moment 20.4 kg·m Stability Index 100.9
COMMENTS
OUTBOARD ENGINE SUZUKI 2.5
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  04590004NPT Issued on 29/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ON THE ROCKSSITA 1204
Turkiye
Sailing
Federation
www.tyf.org.tr/
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 VMG1716.31192.4973.2859.9796.1772.6765.7769.3785.3
52°1096.6780.2651.8597.5567.8549.3541.3534.6536.1
60°1021.8739.5628.1581.5550.3527.4516.9505.9504.7
75°973.9715.0614.8569.0532.3501.6479.1457.6447.7
90°934.2668.9576.5531.8508.4489.0461.3411.7389.9
110°912.7655.5564.6506.3459.9429.0404.9364.7331.7
120°939.9671.9574.6515.5460.5410.7375.4328.7287.2
135°1060.9745.4613.4550.0498.3445.5392.9285.8242.8
150°1278.1880.8698.6605.3551.0507.4459.9338.0251.9
Run VMG1475.81017.1806.6697.6635.2585.9531.1390.3290.9
Selected Courses
Windward / Leeward1596.11104.7889.9778.8715.7679.2648.4579.8538.1
All purpose1208.5849.5701.2626.3579.1546.8519.9470.2441.7
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward744.40.8061
All purpose596.41.0060
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance649.30.9241
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1584.01096.0835.8702.9619.2567.8522.9440.7408.8
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6852
Downwind "popa"0.9006
70% up, 30% down "Ilhabela"0.7382
30% up, 70% down "Ilhabela-inverso"0.8230
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Predominantly Upwind659.90.9093
Predominantly Downwind596.81.0054
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP617.10.9723 Predom. Rc High431.41.3908 5B SF Bay L/M818.70.7329 TriNum AP Low775.30.7738 Predom. Dn Low913.70.6567 5B SF Bay Med701.00.8559 TriNum AP Med597.01.0050 Predom. Dn L/M679.50.8830 5B SF Bay M/H624.40.9609 TriNum AP High508.01.1811 Predom. Dn Med580.31.0339 5B SF Bay High569.51.0536 TriNum W/L Low1046.10.5736 Predom. Dn M/H492.21.2190 5B AP Low856.10.7008 TriNum W/L Med742.10.8085 Predom. Dn High411.31.4589 5B AP L/M678.60.8842 TriNum W/L Hig630.40.9518 ChiMac Up Low845.30.7098 5B AP Med586.81.0225 Predom. Upwind687.40.8728 ChiMac Up Med757.40.7922 5B AP M/H521.01.1515 Predom. Reaching586.31.0234 ChiMac Up High653.10.9187 5B AP High473.91.2661 Predom. Downwind616.60.9731 ChiMac Off Low788.60.7609 5B W/L Low1173.90.5111 Predom. Up Low967.40.6202 ChiMac Off Med693.40.8653 5B W/L L/M856.70.7004 Predom. Up L/M729.80.8222 ChiMac Off High571.51.0499 5B W/L Med729.00.8230 Predom. Up Med639.00.9389 ChiMac AP Low812.70.7383 5B W/L M/H647.60.9265 Predom. Up M/H585.71.0244 ChiMac AP Med722.40.8306 5B W/L High584.41.0267 Predom. Up High556.01.0791 ChiMac AP High610.50.9829 W/L 60-40 Low1192.80.5030 Predom. Rc Low828.90.7239 BayMac Cove Island935.40.6414 W/L 60-40 L/M873.20.6871 Predom. Rc L/M632.70.9483 BayMac Shore929.00.6459 W/L 60-40 Med746.20.8040 Predom. Rc Med553.81.0835 Harvest Moon499.91.2003 W/L 60-40 M/H672.10.8927 Predom. Rc M/H486.81.2324 5B SF Bay Low993.20.6041 W/L 60-40 High621.80.9649      SA/DSPL Up29.28SA/DSPL Dn70.25
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance649.30.9241
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1584.01096.0835.8702.9619.2567.8522.9440.7408.8
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance649.30.9241
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1584.01096.0835.8702.9619.2567.8522.9440.7408.8
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance649.3
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1584.01096.0835.8702.9619.2567.8522.9440.7408.8
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating649.30.9241
FinRating, kevyt tuuli1153.00.8673
FinRating, kova tuuli473.11.0568
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9241
Triple Number Coastal/Long Distance Low0.7738
Triple Number Coastal/Long Distance Medium1.0052
Triple Number Coastal/Long Distance High1.1811
Triple Number Windward/Leeward Low0.6016
Triple Number Windward/Leeward Medium0.8085
Triple Number Windward/Leeward High0.9518
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1584.01096.0835.8702.9619.2567.8522.9440.7408.8
For information
General Purpose Handicap (GPH)671.7
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance649.30.9241
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Saronikos S All Purpose682.30.8794
Saronikos S Upwind801.40.7487
Saronikos S Downwind533.31.1250
Saronikos N All Purpose726.20.8262
Saronikos N Upwind838.40.7156
Saronikos N Downwind608.60.9859
Saronikos SW All Purpose684.60.8765
Saronikos SW Upwind825.20.7271
Saronikos SW Downwind542.71.1056
Saronikos NE All Purpose747.10.8032
Saronikos NE Upwind782.40.7669
Saronikos NE Downwind679.00.8836
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1584.01096.0835.8702.9619.2567.8522.9440.7408.8
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose617.10.9723
5-Band All Purpose Low935.70.6413
5-Band All Purpose L/M702.00.8546
5-Band All Purpose Med608.40.9862
5-Band All Purpose M/H538.61.1139
5-Band All Purpose High483.71.2405
Single Number Predominant Upwind658.60.9110
Single Number Predominant Reaching567.91.0565
Single Number Predominant Downwind598.01.0034
5-Band 50-50 Windward/Leeward Low1173.90.5111
5-Band 50-50 Windward/Leeward L/M856.70.7004
5-Band 50-50 Windward/Leeward Med729.00.8230
5-Band 50-50 Windward/Leeward M/H647.60.9265
5-Band 50-50 Windward/Leeward High584.41.0267
5-Band 60-40 Windward/Leeward Low1192.80.5030
5-Band 60-40 Windward/Leeward L/M873.20.6871
5-Band 60-40 Windward/Leeward Med746.20.8040
5-Band 60-40 Windward/Leeward M/H672.10.8927
5-Band 60-40 Windward/Leeward High621.80.9649
Triple Number 50-50 Windward/Leeward Low1046.10.5736
Triple Number 50-50 Windward/Leeward Med742.20.8084
Triple Number 50-50 Windward/Leeward High630.40.9518
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward762.90.7864
Triple Number 60-40 Windward/Leeward Low1063.80.5640
Triple Number 60-40 Windward/Leeward Med759.00.7905
Triple Number 60-40 Windward/Leeward High658.00.9118
Triple Number All-Purpose Low840.30.7140
Triple Number All-Purpose Med618.70.9698
Triple Number All-Purpose High523.41.1463
Triple Number Predominant Upwind Low875.80.6851
Triple Number Predominant Upwind Med651.50.9210
Triple Number Predominant Upwind High586.91.0223
Triple Number Predominant Reaching Low754.30.7955
Triple Number Predominant Reaching Med574.11.0451
Triple Number Predominant Reaching High460.91.3018
Triple Number Predominant Downwind Low819.00.7326
Triple Number Predominant Downwind Med591.71.0140
Triple Number Predominant Downwind High456.11.3155
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance649.30.9241
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1584.01096.0835.8702.9619.2567.8522.9440.7408.8
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance649.30.9241
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1584.01096.0835.8702.9619.2567.8522.9440.7408.8
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low775.4
Triple Number Coastal/Long Distance Medium596.9
Triple Number Coastal/Long Distance High508.0
Triple Number Windward/Leeward Low997.3
Triple Number Windward/Leeward Medium742.1
Triple Number Windward/Leeward High630.4
Predominantly Upwind659.9
Predominantly Downwind596.8
Predominantly Reaching573.7
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance649.30.9241
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1584.01096.0835.8702.9619.2567.8522.9440.7408.8
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7738
Triple Number Coastal/Long Distance Medium1.0052
Triple Number Coastal/Long Distance High1.1811
Triple Number Windward/Leeward Low0.6016
Triple Number Windward/Leeward Medium0.8085
Triple Number Windward/Leeward High0.9518
Coastal/Long Distance0.9241
Predominantly Upwind0.9093
Predominantly Downwind1.0054
For information
General Purpose Handicap (GPH)671.7
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0060
Distanseseilas Trippeltall svak vind0.7738
Distanseseilas Trippeltall mellomvind1.0052
Distanseseilas Trippeltall sterk vind1.1811
Pølsebane Trippeltall svak vind0.6016
Pølsebane Trippeltall mellomvind0.8085
Pølsebane Trippeltall sterk vind0.9518
Motvind Singeltall0.9093
Medvind Singeltall1.0054
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Coastal/Long Distance649.30.9241
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind659.90.9093
Predominantly Downwind596.81.0054
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore550.61.0898
Cape Doctor Coastal450.31.3325
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7738
Triple Number Coastal/Long Distance Medium1.0052
Triple Number Coastal/Long Distance High1.1811
Triple Number Windward/Leeward Low0.6016
Triple Number Windward/Leeward Medium0.8085
Triple Number Windward/Leeward High0.9518
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7738
Triple Number Coastal/Long Distance Medium1.0052
Triple Number Coastal/Long Distance High1.1811
Triple Number Windward/Leeward Low0.6016
Triple Number Windward/Leeward Medium0.8085
Triple Number Windward/Leeward High0.9518
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance649.30.9241
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Predominantly Upwind659.90.9093
Predominantly Downwind596.81.0054
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1584.01096.0835.8702.9619.2567.8522.9440.7408.8
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance649.30.9241
Triple Number Coastal/Long Distance Low775.40.7738
Triple Number Coastal/Long Distance Medium596.91.0052
Triple Number Coastal/Long Distance High508.01.1811
Triple Number Windward/Leeward Low997.30.6016
Triple Number Windward/Leeward Medium742.10.8085
Triple Number Windward/Leeward High630.40.9518
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1584.01096.0835.8702.9619.2567.8522.9440.7408.8
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP617.10.9723 Predom. Dn High411.31.4589 5B AP M/H521.01.1515 TriNum AP Low775.30.7738 Predom. Rc Low828.90.7239 5B AP High473.91.2661 TriNum AP Med597.01.0050 Predom. Rc L/M632.70.9483 5B SF Bay Low993.20.6041 TriNum AP High508.01.1811 Predom. Rc Med553.81.0835 5B SF Bay L/M818.70.7329 TriNum W/L Low1046.10.5736 Predom. Rc M/H486.81.2324 5B SF Bay Med701.00.8559 TriNum W/L Med742.10.8085 Predom. Rc High431.41.3908 5B SF Bay M/H624.40.9609 TriNum W/L Hig630.40.9518 5B W/L Low1173.90.5111 5B SF Bay High569.51.0536 Predom. Upwind687.40.8728 5B W/L L/M856.70.7004 ChiMac Up Low845.30.7098 Predom. Reaching586.31.0234 5B W/L Med729.00.8230 ChiMac Up Med757.40.7922 Predom. Downwind616.60.9731 5B W/L M/H647.60.9265 ChiMac Up High653.10.9187 Predom. Up Low967.40.6202 5B W/L High584.41.0267 ChiMac Off Low788.60.7609 Predom. Up L/M729.80.8222 W/L 60-40 Low1192.80.5030 ChiMac Off Med693.40.8653 Predom. Up Med639.00.9389 W/L 60-40 L/M873.20.6871 ChiMac Off High571.51.0499 Predom. Up M/H585.71.0244 W/L 60-40 Med746.20.8040 ChiMac AP Low812.70.7383 Predom. Up High556.01.0791 W/L 60-40 M/H672.10.8927 ChiMac AP Med722.40.8306 Predom. Dn Low913.70.6567 W/L 60-40 High621.80.9649 ChiMac AP High610.50.9829 Predom. Dn L/M679.50.8830 5B AP Low856.10.7008 BayMac Cove Island935.40.6414 Predom. Dn Med580.31.0339 5B AP L/M678.60.8842 BayMac Shore929.00.6459 Predom. Dn M/H492.21.2190 5B AP Med586.81.0225 Harvest Moon499.91.2003      SA/DSPL Up29.28SA/DSPL Dn70.25
ORC Ref  04590004NPT Issued on 29/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ON THE ROCKSSITA 1204
Turkiye
Sailing
Federation
www.tyf.org.tr/
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-70 ONE DESIGNMeasurement13/04/2019HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall6.942Maximum beam2.260Draft1.450Displacement812Wetted area9.16IMS L6.747LSM06.217Accomod. length6.942Sink (kg/mm) 7.48
VCGD-0.171VCGM-0.175 RM Rated (kg·m) 20.4Limit of positive stability(°) 109.6 Stability Index 100.9 BLR index 0.0000Default crew weight349 Declared crew weight 375
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialCarbonSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders1Rotating mastNo
P7.975IG8.153ISP9.412MDT10.076MDL10.131MDT20.070MDL20.070TL1.000MW0.116GO0.136
E2.876J2.340BAS1.145FSD0.030SFJ0.175SPLWPLTPS4.025BD0.095MWT24.00MCG3.880
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date29/04/2026
SFFP0.147FFM0.792FF0.793LCFcl3.696SG1.0210
SAFP6.895FAM0.577FA0.577LCFsh3.858HBI0.677
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04590004NPT Issued on 29/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ON THE ROCKSSITA 1204
Turkiye
Sailing
Federation
www.tyf.org.tr/
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommenta0.370.881.432.142.5715.4613/04/2019
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentA0.060.350.651.251.862.458.00YesNo 10.0013/04/2019
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA10.808.809.805.565.7098%45.6413/04/2019WHITE
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
ORC Ref  04590004NPT Issued on 29/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org