Club Certificate2025
CHEESE SAILINGTUR 1721
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 Angles43.4°43.4°41.6°39.4°37.5°37.1°37.2°38.2°39.9°
Beat VMG2.223.083.774.254.554.634.674.644.55
52°3.454.705.596.066.366.526.616.686.66
60°3.694.945.796.226.576.816.927.057.06
75°3.855.105.896.366.797.197.487.807.95
90°4.115.426.256.737.037.317.858.699.15
110°4.205.526.407.137.818.338.829.8210.89
120°4.065.396.297.027.868.779.5411.0112.48
135°3.514.855.896.577.278.159.2412.6614.46
150°2.874.105.175.966.567.137.8910.8814.02
Run VMG2.483.554.485.185.696.186.849.4212.14
Gybe Angles143.7°143.7°148.0°151.6°151.6°148.8°145.4°140.2°145.0°
APH ToD:594.3CDL: 6.921APH ToT: 1.0096CertNo:
BOAT
ClassJ-70 ONE DESIGNDesignerJOHNSTONEBuilderJ BOATSAge date02/2013Series date02/2012Offset fileJ-70.OD.OFFData fileTUR 1721 CHEESE SAILING
HULL
Length Overall6.942 mMaximum Beam2.260 mDraft1.450 mDisplacement812 kgDLR3.3788IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.422%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight341 kg(declared)Minimum weight211 kg ✱ when appliedNon Manual PowerNoCrew 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 (m²)
Trysail4.02Storm Jib3.39Heavy Weather Jib9.13
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
OUTBOARD ENGINE HONDA 2.3 CORRECTOR WEIGHTS 6 Kg
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.
Club Certificate2025
CHEESE SAILINGTUR 1721
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 VMG1621.41167.9955.1846.6791.7776.7771.1776.0791.7
52°1044.8766.5643.6594.1566.0551.9544.8539.1540.8
60°976.8728.4622.2578.8548.0529.0520.1510.5509.6
75°934.5706.5610.7565.9530.2500.4481.3461.8453.0
90°876.4664.3575.7535.0511.9492.7458.7414.5393.6
110°858.0652.0562.4505.0461.0432.4408.1366.5330.6
120°886.1668.2572.5513.0457.7410.6377.3326.9288.5
135°1026.1741.8611.3547.8495.4441.6389.6284.4249.0
150°1256.1877.6695.9603.6548.9504.7456.0330.9256.7
Run VMG1449.21013.3803.5695.5632.9582.8526.6382.1296.4
Selected Courses
Windward / Leeward1534.71090.6879.3771.0712.3679.7648.9579.1544.1
All purpose1154.7839.8694.8622.4577.4547.7520.8470.8446.2
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward740.20.8106
All purpose594.31.0096
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
Triple Number Windward/Leeward High630.40.9518
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.00.9288
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
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 Distance1614.01082.9826.8697.2616.8568.8523.6441.2412.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6902
Downwind "popa"0.9058
70% up, 30% down "Ilhabela"0.7433
30% up, 70% down "Ilhabela-inverso"0.8282
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
Triple Number Windward/Leeward High630.40.9518
Predominantly Upwind656.60.9138
Predominantly Downwind594.01.0101
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low767.30.7820
Triple Number AP Medium594.81.0087
Triple Number AP High508.81.1793
Triple Number Windward/Leeward Low1029.20.5830
Triple Number Windward/Leeward Medium737.60.8134
Triple Number Windward/Leeward High630.40.9518
Single Number Predominant Upwind681.90.8799
Single Number Predominant Reaching582.81.0296
Single Number Predominant Downwind612.40.9798
Predominant Upwind - Low942.50.6366
Predominant Upwind - Low/Med722.30.8307
Predominant Upwind - Medium636.90.9420
Predominant Upwind - Med/High587.51.0212
Predominant Upwind - High559.41.0725
Predominant Downwind Low898.80.6676
Predominant Downwind Low/Med676.00.8876
Predominant Downwind Medium578.41.0374
Predominant Downwind Med/High490.41.2235
Predominant Downwind High410.81.4606
Predominant Reaching Low811.40.7394
Predominant Reaching Low/Med629.70.9528
Predominant Reaching Medium553.21.0847
Predominant Reaching Med/High486.51.2332
Predominant Reaching High432.91.3859
SA/DSPL Upwind29.28SA/DSPL Downwind70.25
Scoring OptionTODTOT
5-Band Windward/Leeward Low1149.00.5222
5-Band Windward/Leeward Low/Med847.60.7079
5-Band Windward/Leeward Medium725.30.8272
5-Band Windward/Leeward Med/High647.60.9265
5-Band Windward/Leeward High585.11.0255
Windward/Leeward 60-40 Low1164.80.5151
Windward/Leeward 60-40 Low/Med862.90.6953
Windward/Leeward 60-40 Medium742.30.8083
Windward/Leeward 60-40 Med/High673.00.8915
Windward/Leeward 60-40 High623.70.9621
5-Band AP Low838.90.7153
5-Band AP Low/Med673.30.8912
5-Band AP Medium585.01.0256
5-Band AP Med/High521.71.1502
5-Band AP High475.21.2626
5-Band SF Bay Tour - Low994.00.6036
5-Band SF Bay Tour - Low/Med812.40.7386
5-Band SF Bay Tour - Medium697.40.8604
5-Band SF Bay Tour - Med/High624.80.9603
5-Band SF Bay Tour - High570.81.0511
Chicago-Mac Upwind0.8518
Chicago-Mac All Purpose0.8963
Chicago-Mac Downwind0.9377
Bayview-Mac Cove Island0.6552
Bayview-Mac Shore0.6594
Harvest Moon Regatta492.71.2178
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.00.9288
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
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 Distance1614.01082.9826.8697.2616.8568.8523.6441.2412.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.00.9288
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
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 Distance1614.01082.9826.8697.2616.8568.8523.6441.2412.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance646.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1614.01082.9826.8697.2616.8568.8523.6441.2412.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
Triple Number Windward/Leeward High630.40.9518
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating646.00.9288
FinRating, kevyt tuuli1124.50.8893
FinRating, kova tuuli475.11.0524
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
Triple Number Windward/Leeward High630.40.9518
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9288
Triple Number Coastal/Long Distance Low0.7820
Triple Number Coastal/Long Distance Medium1.0088
Triple Number Coastal/Long Distance High1.1793
Triple Number Windward/Leeward Low0.6092
Triple Number Windward/Leeward Medium0.8134
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 Distance1614.01082.9826.8697.2616.8568.8523.6441.2412.7
For information
General Purpose Handicap (GPH)668.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.00.9288
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
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 Distance1614.01082.9826.8697.2616.8568.8523.6441.2412.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
Triple Number Windward/Leeward High630.40.9518
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.00.9288
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
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 Distance1614.01082.9826.8697.2616.8568.8523.6441.2412.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.00.9288
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
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 Distance1614.01082.9826.8697.2616.8568.8523.6441.2412.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low767.3
Triple Number Coastal/Long Distance Medium594.8
Triple Number Coastal/Long Distance High508.8
Triple Number Windward/Leeward Low984.9
Triple Number Windward/Leeward Medium737.6
Triple Number Windward/Leeward High630.4
Predominantly Upwind656.6
Predominantly Downwind594.0
Predominantly Reaching571.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.00.9288
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
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 Distance1614.01082.9826.8697.2616.8568.8523.6441.2412.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7820
Triple Number Coastal/Long Distance Medium1.0088
Triple Number Coastal/Long Distance High1.1793
Triple Number Windward/Leeward Low0.6092
Triple Number Windward/Leeward Medium0.8134
Triple Number Windward/Leeward High0.9518
Coastal/Long Distance0.9288
Predominantly Upwind0.9138
Predominantly Downwind1.0101
For information
General Purpose Handicap (GPH)668.2
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0096
Distanseseilas Trippeltall svak vind0.7820
Distanseseilas Trippeltall mellomvind1.0088
Distanseseilas Trippeltall sterk vind1.1793
Pølsebane Trippeltall svak vind0.6092
Pølsebane Trippeltall mellomvind0.8134
Pølsebane Trippeltall sterk vind0.9518
Motvind Singeltall0.9138
Medvind Singeltall1.0101
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
Triple Number Windward/Leeward High630.40.9518
Coastal/Long Distance646.00.9288
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind656.60.9138
Predominantly Downwind594.01.0101
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore554.61.0819
Cape Doctor Coastal453.61.3229
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
Triple Number Windward/Leeward High630.40.9518
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7820
Triple Number Coastal/Long Distance Medium1.0088
Triple Number Coastal/Long Distance High1.1793
Triple Number Windward/Leeward Low0.6092
Triple Number Windward/Leeward Medium0.8134
Triple Number Windward/Leeward High0.9518
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7820
Triple Number Coastal/Long Distance Medium1.0088
Triple Number Coastal/Long Distance High1.1793
Triple Number Windward/Leeward Low0.6092
Triple Number Windward/Leeward Medium0.8134
Triple Number Windward/Leeward High0.9518
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.00.9288
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
Triple Number Windward/Leeward High630.40.9518
Predominantly Upwind656.60.9138
Predominantly Downwind594.01.0101
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1614.01082.9826.8697.2616.8568.8523.6441.2412.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.00.9288
Triple Number Coastal/Long Distance Low767.30.7820
Triple Number Coastal/Long Distance Medium594.81.0088
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium737.60.8134
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 Distance1614.01082.9826.8697.2616.8568.8523.6441.2412.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low767.30.7820
Triple Number AP Medium594.81.0087
Triple Number AP High508.81.1793
Triple Number Windward/Leeward Low1029.20.5830
Triple Number Windward/Leeward Medium737.60.8134
Triple Number Windward/Leeward High630.40.9518
Single Number Predominant Upwind681.90.8799
Single Number Predominant Reaching582.81.0296
Single Number Predominant Downwind612.40.9798
Predominant Upwind - Low942.50.6366
Predominant Upwind - Low/Med722.30.8307
Predominant Upwind - Medium636.90.9420
Predominant Upwind - Med/High587.51.0212
Predominant Upwind - High559.41.0725
Predominant Downwind Low898.80.6676
Predominant Downwind Low/Med676.00.8876
Predominant Downwind Medium578.41.0374
Predominant Downwind Med/High490.41.2235
Predominant Downwind High410.81.4606
Predominant Reaching Low811.40.7394
Predominant Reaching Low/Med629.70.9528
Predominant Reaching Medium553.21.0847
Predominant Reaching Med/High486.51.2332
Predominant Reaching High432.91.3859
SA/DSPL Upwind29.28SA/DSPL Downwind70.25
Scoring OptionTODTOT
5-Band Windward/Leeward Low1149.00.5222
5-Band Windward/Leeward Low/Med847.60.7079
5-Band Windward/Leeward Medium725.30.8272
5-Band Windward/Leeward Med/High647.60.9265
5-Band Windward/Leeward High585.11.0255
Windward/Leeward 60-40 Low1164.80.5151
Windward/Leeward 60-40 Low/Med862.90.6953
Windward/Leeward 60-40 Medium742.30.8083
Windward/Leeward 60-40 Med/High673.00.8915
Windward/Leeward 60-40 High623.70.9621
5-Band AP Low838.90.7153
5-Band AP Low/Med673.30.8912
5-Band AP Medium585.01.0256
5-Band AP Med/High521.71.1502
5-Band AP High475.21.2626
5-Band SF Bay Tour - Low994.00.6036
5-Band SF Bay Tour - Low/Med812.40.7386
5-Band SF Bay Tour - Medium697.40.8604
5-Band SF Bay Tour - Med/High624.80.9603
5-Band SF Bay Tour - High570.81.0511
Chicago-Mac Upwind0.8518
Chicago-Mac All Purpose0.8963
Chicago-Mac Downwind0.9377
Bayview-Mac Cove Island0.6552
Bayview-Mac Shore0.6594
Harvest Moon Regatta492.71.2178
Club Certificate2025
CHEESE SAILINGTUR 1721
Turkiye
Sailing
Federation
www.tyf.org.tr/
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-70 ONE DESIGNMeasurement30/07/2025HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA6.942Max. Beam2.260Draft1.450Displacement812Wetted area9.16IMS L6.726LSM06.217Acc. length6.942Sink (kg/mm) 7.48
VCGD-0.169VCGM-0.173RM Rated (kg·m) 20.4Limit of positive stability(°) N/AStability IndexN/ADefault crew weight349Declared crew weight341
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P7.975IG8.153ISP9.412MDT10.076MDL10.131MDT20.070MDL20.070TL1.000MW0.116GO0.136
E2.876J2.340BAS1.145FSD0.000SFJ0.175SPL0.000WPLTPS4.025BD0.095MWT24.00MCG3.880
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date30/07/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
CHEESE SAILINGTUR 1721
Turkiye
Sailing
Federation
www.tyf.org.tr/
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA0.370.881.432.142.5715.46CLASS
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentA0.060.350.651.251.862.458.00YesNo 10.00CLASS
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA10.808.809.805.565.7098%45.64CLASS