Club Certificate2026
ROKOTUR 456
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 Angles44.9°42.4°40.7°38.6°36.8°36.0°35.8°36.4°37.7°
Beat VMG2.092.993.654.104.394.524.574.574.51
52°3.244.505.345.796.066.256.346.436.45
60°3.454.705.515.936.236.476.606.756.80
75°3.584.865.706.116.436.767.047.347.51
90°3.765.145.936.436.837.157.387.988.42
110°3.695.085.936.567.197.828.379.2510.31
120°3.544.935.816.407.047.798.5810.4212.10
135°3.104.435.436.046.597.207.9510.4014.06
150°2.573.754.755.536.036.506.998.4912.16
Run VMG2.233.254.114.795.265.666.077.3610.53
Gybe Angles140.4°144.4°148.0°150.6°155.0°158.1°154.7°133.9°141.0°
APH ToD:631.1CDL: 6.484APH ToT: 0.9506CertNo:
BOAT
ClassCHEESE 6.5DesignerSTEVE THOMPSONBuilderDOKAR YACHTAge date08/2023Series date01/2007Offset filecheese65-LB.offData fileTUR456 ROKO
HULL
Length Overall6.566 mMaximum Beam2.320 mDraft1.687 mDisplacement824 kgDLR3.6509IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.618%RS Assessment-0.127%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight325 kg(declared)Minimum weight195 kg ✱ when appliedCrew Arm ExtensionLoose or no lifelines
SAIL AREAS (m²)
MeasuredRatedMainsail14.6114.89Headsail Luffed10.5710.57Headsail FlyingSymmetricAsymmetric31.5331.53 (2 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS Maximum (m²)
Trysail4.50Storm Jib2.82Heavy Weather Jib7.61
SAIL LIMITS
Headsails5
✱ Woven polyester sails
Spinnakers4
STABILITY
Righting Moment 16.8 kg·m Stability Index 107.6
COMMENTS
OUTBOARD ENGINE ONBOARD
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  04590004MAN Issued on 21/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ROKOTUR 456
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 VMG1720.31204.5987.1877.4820.6797.0788.5788.6798.3
52°1111.1800.7673.6621.6594.2576.3567.9559.7558.3
60°1044.5765.2653.1606.9578.3556.4545.4533.2529.7
75°1004.9741.4631.1589.0560.2532.3511.7490.5479.1
90°958.3700.6606.9559.7527.1503.2488.0451.4427.5
110°976.5709.0606.7549.0500.9460.6430.2389.1349.2
120°1017.2730.4619.2562.4511.5462.4419.5345.4297.5
135°1161.4812.9663.1596.2546.3499.9453.1346.0256.1
150°1399.5959.4758.1650.7596.6554.1514.9423.8296.1
Run VMG1616.01107.8875.4751.0684.0635.9593.3489.4341.9
Selected Courses
Windward / Leeward1668.21156.2931.2814.2752.3716.5690.9639.0570.1
All purpose1262.5891.8736.3659.0612.6580.5556.4512.1467.4
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward783.80.7655
All purpose631.10.9506
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance686.50.8739
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1663.01151.3876.9737.6654.4603.0560.5480.1435.9
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6705
Downwind "popa"0.8176
70% up, 30% down "Ilhabela"0.7088
30% up, 70% down "Ilhabela-inverso"0.7671
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Predominantly Upwind688.90.8709
Predominantly Downwind640.90.9361
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP654.70.9165 Predom. Rc High472.81.2690 5B SF Bay L/M855.60.7012 TriNum AP Low814.00.7371 Predom. Dn Low976.50.6144 5B SF Bay Med737.20.8139 TriNum AP Med630.40.9517 Predom. Dn L/M725.20.8273 5B SF Bay M/H665.70.9013 TriNum AP High545.81.0993 Predom. Dn Med621.90.9648 5B SF Bay High614.50.9763 TriNum W/L Low1094.40.5482 Predom. Dn M/H541.51.1081 5B AP Low903.70.6639 TriNum W/L Med778.90.7703 Predom. Dn High465.81.2881 5B AP L/M713.70.8407 TriNum W/L Hig677.80.8852 ChiMac Up Low874.30.6863 5B AP Med620.60.9669 Predom. Upwind716.80.8370 ChiMac Up Med786.60.7628 5B AP M/H557.71.0759 Predom. Reaching622.20.9644 ChiMac Up High682.80.8787 5B AP High512.01.1718 Predom. Downwind663.90.9038 ChiMac Off Low842.50.7122 5B W/L Low1227.90.4886 Predom. Up Low997.40.6016 ChiMac Off Med743.50.8070 5B W/L L/M896.70.6691 Predom. Up L/M757.80.7918 ChiMac Off High618.70.9697 5B W/L Med766.30.7829 Predom. Up Med667.80.8985 ChiMac AP Low853.40.7030 5B W/L M/H691.60.8676 Predom. Up M/H617.40.9717 ChiMac AP Med761.40.7880 5B W/L High636.00.9433 Predom. Up High588.61.0194 ChiMac AP High648.40.9253 W/L 60-40 Low1238.20.4846 Predom. Rc Low872.20.6879 BayMac Cove Island981.70.6112 W/L 60-40 L/M908.50.6604 Predom. Rc L/M668.20.8980 BayMac Shore973.80.6162 W/L 60-40 Med780.50.7687 Predom. Rc Med586.41.0231 Harvest Moon539.01.1133 W/L 60-40 M/H711.80.8429 Predom. Rc M/H524.81.1434 5B SF Bay Low1036.10.5791 W/L 60-40 High666.90.8997      SA/DSPL Up28.69SA/DSPL Dn52.55
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance686.50.8739
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1663.01151.3876.9737.6654.4603.0560.5480.1435.9
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance686.50.8739
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1663.01151.3876.9737.6654.4603.0560.5480.1435.9
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance686.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1663.01151.3876.9737.6654.4603.0560.5480.1435.9
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating686.50.8739
FinRating, kevyt tuuli1208.60.8274
FinRating, kova tuuli508.20.9839
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8739
Triple Number Coastal/Long Distance Low0.7371
Triple Number Coastal/Long Distance Medium0.9518
Triple Number Coastal/Long Distance High1.0993
Triple Number Windward/Leeward Low0.5749
Triple Number Windward/Leeward Medium0.7703
Triple Number Windward/Leeward High0.8852
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1663.01151.3876.9737.6654.4603.0560.5480.1435.9
For information
General Purpose Handicap (GPH)709.4
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance686.50.8739
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Saronikos S All Purpose718.80.8347
Saronikos S Upwind822.40.7296
Saronikos S Downwind591.71.0140
Saronikos N All Purpose760.10.7894
Saronikos N Upwind858.90.6986
Saronikos N Downwind661.70.9067
Saronikos SW All Purpose719.20.8343
Saronikos SW Upwind845.60.7095
Saronikos SW Downwind595.51.0075
Saronikos NE All Purpose784.20.7651
Saronikos NE Upwind805.00.7453
Saronikos NE Downwind736.30.8148
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1663.01151.3876.9737.6654.4603.0560.5480.1435.9
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose654.70.9165
5-Band All Purpose Low981.30.6114
5-Band All Purpose L/M738.50.8125
5-Band All Purpose Med642.70.9335
5-Band All Purpose M/H578.31.0375
5-Band All Purpose High527.11.1383
Single Number Predominant Upwind687.70.8725
Single Number Predominant Reaching602.30.9962
Single Number Predominant Downwind642.10.9345
5-Band 50-50 Windward/Leeward Low1227.90.4886
5-Band 50-50 Windward/Leeward L/M896.70.6691
5-Band 50-50 Windward/Leeward Med766.30.7829
5-Band 50-50 Windward/Leeward M/H691.60.8676
5-Band 50-50 Windward/Leeward High636.00.9433
5-Band 60-40 Windward/Leeward Low1238.20.4846
5-Band 60-40 Windward/Leeward L/M908.50.6604
5-Band 60-40 Windward/Leeward Med780.50.7687
5-Band 60-40 Windward/Leeward M/H711.80.8429
5-Band 60-40 Windward/Leeward High666.90.8997
Triple Number 50-50 Windward/Leeward Low1094.40.5482
Triple Number 50-50 Windward/Leeward Med779.00.7702
Triple Number 50-50 Windward/Leeward High677.80.8852
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward798.70.7512
Triple Number 60-40 Windward/Leeward Low1105.00.5430
Triple Number 60-40 Windward/Leeward Med792.70.7569
Triple Number 60-40 Windward/Leeward High700.40.8567
Triple Number All-Purpose Low882.30.6801
Triple Number All-Purpose Med652.70.9193
Triple Number All-Purpose High565.11.0618
Triple Number Predominant Upwind Low906.30.6620
Triple Number Predominant Upwind Med679.70.8828
Triple Number Predominant Upwind High617.00.9724
Triple Number Predominant Reaching Low794.20.7554
Triple Number Predominant Reaching Med606.60.9892
Triple Number Predominant Reaching High499.91.2002
Triple Number Predominant Downwind Low873.90.6865
Triple Number Predominant Downwind Med633.80.9466
Triple Number Predominant Downwind High510.81.1746
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance686.50.8739
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1663.01151.3876.9737.6654.4603.0560.5480.1435.9
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance686.50.8739
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1663.01151.3876.9737.6654.4603.0560.5480.1435.9
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low814.0
Triple Number Coastal/Long Distance Medium630.4
Triple Number Coastal/Long Distance High545.8
Triple Number Windward/Leeward Low1043.7
Triple Number Windward/Leeward Medium778.9
Triple Number Windward/Leeward High677.8
Predominantly Upwind688.9
Predominantly Downwind640.9
Predominantly Reaching611.4
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance686.50.8739
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1663.01151.3876.9737.6654.4603.0560.5480.1435.9
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7371
Triple Number Coastal/Long Distance Medium0.9518
Triple Number Coastal/Long Distance High1.0993
Triple Number Windward/Leeward Low0.5749
Triple Number Windward/Leeward Medium0.7703
Triple Number Windward/Leeward High0.8852
Coastal/Long Distance0.8739
Predominantly Upwind0.8709
Predominantly Downwind0.9361
For information
General Purpose Handicap (GPH)709.4
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9506
Distanseseilas Trippeltall svak vind0.7371
Distanseseilas Trippeltall mellomvind0.9518
Distanseseilas Trippeltall sterk vind1.0993
Pølsebane Trippeltall svak vind0.5749
Pølsebane Trippeltall mellomvind0.7703
Pølsebane Trippeltall sterk vind0.8852
Motvind Singeltall0.8709
Medvind Singeltall0.9361
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Coastal/Long Distance686.50.8739
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind688.90.8709
Predominantly Downwind640.90.9361
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore590.71.0157
Cape Doctor Coastal480.91.2478
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7371
Triple Number Coastal/Long Distance Medium0.9518
Triple Number Coastal/Long Distance High1.0993
Triple Number Windward/Leeward Low0.5749
Triple Number Windward/Leeward Medium0.7703
Triple Number Windward/Leeward High0.8852
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7371
Triple Number Coastal/Long Distance Medium0.9518
Triple Number Coastal/Long Distance High1.0993
Triple Number Windward/Leeward Low0.5749
Triple Number Windward/Leeward Medium0.7703
Triple Number Windward/Leeward High0.8852
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance686.50.8739
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Predominantly Upwind688.90.8709
Predominantly Downwind640.90.9361
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1663.01151.3876.9737.6654.4603.0560.5480.1435.9
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance686.50.8739
Triple Number Coastal/Long Distance Low814.00.7371
Triple Number Coastal/Long Distance Medium630.40.9518
Triple Number Coastal/Long Distance High545.81.0993
Triple Number Windward/Leeward Low1043.70.5749
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High677.80.8852
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1663.01151.3876.9737.6654.4603.0560.5480.1435.9
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP654.70.9165 Predom. Dn High465.81.2881 5B AP M/H557.71.0759 TriNum AP Low814.00.7371 Predom. Rc Low872.20.6879 5B AP High512.01.1718 TriNum AP Med630.40.9517 Predom. Rc L/M668.20.8980 5B SF Bay Low1036.10.5791 TriNum AP High545.81.0993 Predom. Rc Med586.41.0231 5B SF Bay L/M855.60.7012 TriNum W/L Low1094.40.5482 Predom. Rc M/H524.81.1434 5B SF Bay Med737.20.8139 TriNum W/L Med778.90.7703 Predom. Rc High472.81.2690 5B SF Bay M/H665.70.9013 TriNum W/L Hig677.80.8852 5B W/L Low1227.90.4886 5B SF Bay High614.50.9763 Predom. Upwind716.80.8370 5B W/L L/M896.70.6691 ChiMac Up Low874.30.6863 Predom. Reaching622.20.9644 5B W/L Med766.30.7829 ChiMac Up Med786.60.7628 Predom. Downwind663.90.9038 5B W/L M/H691.60.8676 ChiMac Up High682.80.8787 Predom. Up Low997.40.6016 5B W/L High636.00.9433 ChiMac Off Low842.50.7122 Predom. Up L/M757.80.7918 W/L 60-40 Low1238.20.4846 ChiMac Off Med743.50.8070 Predom. Up Med667.80.8985 W/L 60-40 L/M908.50.6604 ChiMac Off High618.70.9697 Predom. Up M/H617.40.9717 W/L 60-40 Med780.50.7687 ChiMac AP Low853.40.7030 Predom. Up High588.61.0194 W/L 60-40 M/H711.80.8429 ChiMac AP Med761.40.7880 Predom. Dn Low976.50.6144 W/L 60-40 High666.90.8997 ChiMac AP High648.40.9253 Predom. Dn L/M725.20.8273 5B AP Low903.70.6639 BayMac Cove Island981.70.6112 Predom. Dn Med621.90.9648 5B AP L/M713.70.8407 BayMac Shore973.80.6162 Predom. Dn M/H541.51.1081 5B AP Med620.60.9669 Harvest Moon539.01.1133      SA/DSPL Up28.69SA/DSPL Dn52.55
ORC Ref  04590004MAN Issued on 21/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ROKOTUR 456
Turkiye
Sailing
Federation
www.tyf.org.tr/
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassCHEESE 6.5Measurement24/08/2023HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall6.566Maximum beam2.320Draft1.687Displacement824Wetted area8.84IMS L6.345LSM06.087Accomod. length6.566Sink (kg/mm) 6.85
VCGD-0.253VCGM-0.205 RM Rated (kg·m) 16.8Limit of positive stability(°) 116.3 Stability Index 107.6 BLR index 0.0000Default crew weight339 Declared crew weight 325
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders1Rotating mastNo
P7.950IG7.500ISP8.325MDT10.074MDL10.111MDT20.071MDL20.080TL1.180MW0.110GO0.111
E3.230J2.350BAS0.870FSD0.000SFJ0.000SPL0.000WPLTPS3.150BD0.095MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date21/04/2026
SFFP0.417FFM0.799FF0.800LCFcl3.698SG1.0190
SAFP6.306FAM0.596FA0.597LCFsh3.870HBI0.712
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04590004MAN Issued on 21/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ROKOTUR 456
Turkiye
Sailing
Federation
www.tyf.org.tr/
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment00.160.621.101.922.6414.61A0.140.591.061.882.6114.3724/08/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.110.440.781.402.617.70YesNo 10.57A0.060.320.611.231.902.556.98YesNo 8.8024/08/2023
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment08.787.197.994.515.6580%31.5328/08/2021B7.206.476.843.904.7382%23.1624/08/2023
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
ORC Ref  04590004MAN Issued on 21/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org