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°43.6°41.9°40.1°38.0°36.9°36.8°37.7°39.5°
Beat VMG2.093.013.694.184.524.684.724.704.61
52°3.274.605.516.026.346.576.676.766.74
60°3.514.855.726.186.546.836.997.147.17
75°3.685.025.856.316.757.177.527.908.08
90°3.855.376.246.787.107.387.788.769.27
110°3.945.486.367.107.838.418.929.9110.92
120°3.825.356.256.977.798.759.6111.0112.62
135°3.394.825.866.537.208.049.1112.6114.91
150°2.814.085.145.946.527.087.7910.5914.25
Run VMG2.433.534.455.155.666.136.759.1712.34
Gybe Angles140.4°143.9°148.0°151.5°152.1°149.6°145.2°138.4°144.0°
APH ToD:596.9CDL: 6.889APH ToT: 1.0051CertNo:
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 weight390 kg(declared)Minimum weight260 kg ✱ when appliedCrew Arm ExtensionLoose or no lifelines
SAIL AREAS (m²)
MeasuredRatedMainsail15.4616.08Headsail 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 100.4
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  04590004VQA Issued on 28/07/2026 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 VMG1720.91195.6975.9862.0796.9769.8762.4765.3780.9
52°1099.7782.5653.6598.1568.2548.2539.7532.4533.7
60°1024.9741.8629.7582.3550.9526.9515.4503.9502.1
75°976.9717.4615.5570.3533.1502.4478.5456.0445.5
90°935.9670.4576.9531.0507.1487.6462.6410.8388.3
110°914.5656.9565.6507.1459.9427.9403.8363.3329.8
120°941.7673.4575.7516.8462.0411.3374.7327.1285.3
135°1063.0747.1614.5551.1499.7447.5395.4285.6241.5
150°1280.5882.6700.0606.3552.2508.8462.1339.9252.6
Run VMG1478.61019.1808.3698.9636.4587.5533.6392.4291.7
Selected Courses
Windward / Leeward1599.71107.4892.1780.4716.6678.6648.0578.8536.3
All purpose1211.3851.6702.7627.3579.7546.4519.6469.1439.9
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward745.10.8052
All purpose596.91.0051
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.10.9229
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1587.61098.6837.8704.3620.0567.3522.6439.7407.0
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6854
Downwind "popa"0.8982
70% up, 30% down "Ilhabela"0.7378
30% up, 70% down "Ilhabela-inverso"0.8216
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Predominantly Upwind660.40.9086
Predominantly Downwind598.01.0034
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP617.40.9717 Predom. Rc High430.61.3933 5B SF Bay L/M820.50.7313 TriNum AP Low777.20.7720 Predom. Dn Low915.60.6553 5B SF Bay Med701.70.8550 TriNum AP Med597.61.0041 Predom. Dn L/M680.80.8814 5B SF Bay M/H623.80.9619 TriNum AP High507.41.1825 Predom. Dn Med581.21.0323 5B SF Bay High568.21.0560 TriNum W/L Low1048.60.5722 Predom. Dn M/H493.21.2166 5B AP Low858.20.6992 TriNum W/L Med743.00.8075 Predom. Dn High411.31.4588 5B AP L/M679.90.8825 TriNum W/L Hig629.70.9528 ChiMac Up Low847.10.7083 5B AP Med587.31.0216 Predom. Upwind687.70.8725 ChiMac Up Med758.40.7911 5B AP M/H520.71.1524 Predom. Reaching586.71.0227 ChiMac Up High653.20.9186 5B AP High472.81.2691 Predom. Downwind617.50.9716 ChiMac Off Low790.10.7594 5B W/L Low1176.70.5099 Predom. Up Low969.80.6187 ChiMac Off Med694.70.8637 5B W/L L/M858.50.6989 Predom. Up L/M731.20.8206 ChiMac Off High572.41.0482 5B W/L Med729.80.8221 Predom. Up Med639.30.9385 ChiMac AP Low814.30.7369 5B W/L M/H647.20.9270 Predom. Up M/H584.71.0262 ChiMac AP Med723.50.8293 5B W/L High583.51.0284 Predom. Up High554.11.0828 ChiMac AP High610.90.9821 W/L 60-40 Low1195.70.5018 Predom. Rc Low830.70.7223 BayMac Cove Island937.30.6402 W/L 60-40 L/M875.20.6856 Predom. Rc L/M633.60.9470 BayMac Shore930.80.6446 W/L 60-40 Med746.90.8033 Predom. Rc Med554.01.0830 Harvest Moon500.31.1993 W/L 60-40 M/H671.20.8940 Predom. Rc M/H487.11.2317 5B SF Bay Low995.60.6026 W/L 60-40 High620.30.9673      SA/DSPL Up29.28SA/DSPL Dn70.25
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.10.9229
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1587.61098.6837.8704.3620.0567.3522.6439.7407.0
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.10.9229
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1587.61098.6837.8704.3620.0567.3522.6439.7407.0
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance650.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1587.61098.6837.8704.3620.0567.3522.6439.7407.0
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating650.10.9229
FinRating, kevyt tuuli1155.70.8653
FinRating, kova tuuli471.91.0595
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9229
Triple Number Coastal/Long Distance Low0.7720
Triple Number Coastal/Long Distance Medium1.0042
Triple Number Coastal/Long Distance High1.1825
Triple Number Windward/Leeward Low0.6001
Triple Number Windward/Leeward Medium0.8075
Triple Number Windward/Leeward High0.9528
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1587.61098.6837.8704.3620.0567.3522.6439.7407.0
For information
General Purpose Handicap (GPH)672.5
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.10.9229
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Saronikos S All Purpose683.50.8778
Saronikos S Upwind802.60.7476
Saronikos S Downwind534.71.1222
Saronikos N All Purpose726.70.8256
Saronikos N Upwind839.10.7151
Saronikos N Downwind609.80.9839
Saronikos SW All Purpose685.90.8748
Saronikos SW Upwind826.80.7257
Saronikos SW Downwind543.71.1035
Saronikos NE All Purpose747.70.8024
Saronikos NE Upwind783.10.7662
Saronikos NE Downwind680.30.8820
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1587.61098.6837.8704.3620.0567.3522.6439.7407.0
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose617.40.9717
5-Band All Purpose Low937.90.6398
5-Band All Purpose L/M703.30.8531
5-Band All Purpose Med608.90.9854
5-Band All Purpose M/H538.61.1140
5-Band All Purpose High482.71.2429
Single Number Predominant Upwind659.20.9102
Single Number Predominant Reaching568.51.0553
Single Number Predominant Downwind599.11.0015
5-Band 50-50 Windward/Leeward Low1176.70.5099
5-Band 50-50 Windward/Leeward L/M858.50.6989
5-Band 50-50 Windward/Leeward Med729.80.8221
5-Band 50-50 Windward/Leeward M/H647.20.9270
5-Band 50-50 Windward/Leeward High583.51.0284
5-Band 60-40 Windward/Leeward Low1195.70.5018
5-Band 60-40 Windward/Leeward L/M875.20.6856
5-Band 60-40 Windward/Leeward Med746.90.8033
5-Band 60-40 Windward/Leeward M/H671.20.8940
5-Band 60-40 Windward/Leeward High620.30.9673
Triple Number 50-50 Windward/Leeward Low1048.60.5722
Triple Number 50-50 Windward/Leeward Med743.10.8074
Triple Number 50-50 Windward/Leeward High629.70.9528
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward763.60.7858
Triple Number 60-40 Windward/Leeward Low1066.50.5626
Triple Number 60-40 Windward/Leeward Med759.90.7896
Triple Number 60-40 Windward/Leeward High656.90.9134
Triple Number All-Purpose Low842.20.7124
Triple Number All-Purpose Med619.20.9690
Triple Number All-Purpose High523.01.1471
Triple Number Predominant Upwind Low877.90.6835
Triple Number Predominant Upwind Med651.90.9204
Triple Number Predominant Upwind High585.31.0251
Triple Number Predominant Reaching Low755.80.7939
Triple Number Predominant Reaching Med574.41.0446
Triple Number Predominant Reaching High460.81.3020
Triple Number Predominant Downwind Low820.70.7311
Triple Number Predominant Downwind Med592.51.0126
Triple Number Predominant Downwind High457.01.3128
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.10.9229
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1587.61098.6837.8704.3620.0567.3522.6439.7407.0
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.10.9229
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1587.61098.6837.8704.3620.0567.3522.6439.7407.0
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low777.2
Triple Number Coastal/Long Distance Medium597.5
Triple Number Coastal/Long Distance High507.4
Triple Number Windward/Leeward Low999.8
Triple Number Windward/Leeward Medium743.0
Triple Number Windward/Leeward High629.7
Predominantly Upwind660.4
Predominantly Downwind598.0
Predominantly Reaching574.6
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.10.9229
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1587.61098.6837.8704.3620.0567.3522.6439.7407.0
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7720
Triple Number Coastal/Long Distance Medium1.0042
Triple Number Coastal/Long Distance High1.1825
Triple Number Windward/Leeward Low0.6001
Triple Number Windward/Leeward Medium0.8075
Triple Number Windward/Leeward High0.9528
Coastal/Long Distance0.9229
Predominantly Upwind0.9086
Predominantly Downwind1.0034
For information
General Purpose Handicap (GPH)672.5
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0051
Distanseseilas Trippeltall svak vind0.7720
Distanseseilas Trippeltall mellomvind1.0042
Distanseseilas Trippeltall sterk vind1.1825
Pølsebane Trippeltall svak vind0.6001
Pølsebane Trippeltall mellomvind0.8075
Pølsebane Trippeltall sterk vind0.9528
Motvind Singeltall0.9086
Medvind Singeltall1.0034
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Coastal/Long Distance650.10.9229
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind660.40.9086
Predominantly Downwind598.01.0034
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore549.11.0927
Cape Doctor Coastal448.61.3373
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7720
Triple Number Coastal/Long Distance Medium1.0042
Triple Number Coastal/Long Distance High1.1825
Triple Number Windward/Leeward Low0.6001
Triple Number Windward/Leeward Medium0.8075
Triple Number Windward/Leeward High0.9528
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7720
Triple Number Coastal/Long Distance Medium1.0042
Triple Number Coastal/Long Distance High1.1825
Triple Number Windward/Leeward Low0.6001
Triple Number Windward/Leeward Medium0.8075
Triple Number Windward/Leeward High0.9528
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.10.9229
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Predominantly Upwind660.40.9086
Predominantly Downwind598.01.0034
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1587.61098.6837.8704.3620.0567.3522.6439.7407.0
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.10.9229
Triple Number Coastal/Long Distance Low777.20.7720
Triple Number Coastal/Long Distance Medium597.51.0042
Triple Number Coastal/Long Distance High507.41.1825
Triple Number Windward/Leeward Low999.80.6001
Triple Number Windward/Leeward Medium743.00.8075
Triple Number Windward/Leeward High629.70.9528
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1587.61098.6837.8704.3620.0567.3522.6439.7407.0
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP617.40.9717 Predom. Dn High411.31.4588 5B AP M/H520.71.1524 TriNum AP Low777.20.7720 Predom. Rc Low830.70.7223 5B AP High472.81.2691 TriNum AP Med597.61.0041 Predom. Rc L/M633.60.9470 5B SF Bay Low995.60.6026 TriNum AP High507.41.1825 Predom. Rc Med554.01.0830 5B SF Bay L/M820.50.7313 TriNum W/L Low1048.60.5722 Predom. Rc M/H487.11.2317 5B SF Bay Med701.70.8550 TriNum W/L Med743.00.8075 Predom. Rc High430.61.3933 5B SF Bay M/H623.80.9619 TriNum W/L Hig629.70.9528 5B W/L Low1176.70.5099 5B SF Bay High568.21.0560 Predom. Upwind687.70.8725 5B W/L L/M858.50.6989 ChiMac Up Low847.10.7083 Predom. Reaching586.71.0227 5B W/L Med729.80.8221 ChiMac Up Med758.40.7911 Predom. Downwind617.50.9716 5B W/L M/H647.20.9270 ChiMac Up High653.20.9186 Predom. Up Low969.80.6187 5B W/L High583.51.0284 ChiMac Off Low790.10.7594 Predom. Up L/M731.20.8206 W/L 60-40 Low1195.70.5018 ChiMac Off Med694.70.8637 Predom. Up Med639.30.9385 W/L 60-40 L/M875.20.6856 ChiMac Off High572.41.0482 Predom. Up M/H584.71.0262 W/L 60-40 Med746.90.8033 ChiMac AP Low814.30.7369 Predom. Up High554.11.0828 W/L 60-40 M/H671.20.8940 ChiMac AP Med723.50.8293 Predom. Dn Low915.60.6553 W/L 60-40 High620.30.9673 ChiMac AP High610.90.9821 Predom. Dn L/M680.80.8814 5B AP Low858.20.6992 BayMac Cove Island937.30.6402 Predom. Dn Med581.21.0323 5B AP L/M679.90.8825 BayMac Shore930.80.6446 Predom. Dn M/H493.21.2166 5B AP Med587.31.0216 Harvest Moon500.31.1993      SA/DSPL Up29.28SA/DSPL Dn70.25
ORC Ref  04590004VQA Issued on 28/07/2026 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 L6.755LSM06.217Accomod. length6.942Sink (kg/mm) 7.48
VCGD-0.171VCGM-0.175 RM Rated (kg·m) 20.4Limit of positive stability(°) 109.1 Stability Index 100.4 BLR index 0.0000Default crew weight349 Declared crew weight 390
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 Date28/07/2026
SFFP0.147FFM0.792FF0.793LCFcl3.696SG1.0210
SAFP6.895FAM0.577FA0.577LCFsh3.858HBI0.677
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04590004VQA Issued on 28/07/2026 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  04590004VQA Issued on 28/07/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org