Club Certificate2025
GEMINI IIITUR 1939
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 Angles43.8°43.8°41.3°39.7°38.6°38.0°37.8°37.9°38.8°
Beat VMG2.393.314.064.584.895.025.095.135.07
52°3.755.086.036.636.937.087.167.237.23
60°4.005.366.296.837.117.287.377.467.49
75°4.155.546.476.987.297.517.687.887.99
90°4.025.476.517.057.327.597.858.268.52
110°4.055.566.677.247.627.968.198.588.91
120°3.895.386.517.177.608.028.429.049.53
135°3.424.825.996.847.357.798.259.2710.78
150°2.834.095.236.206.917.387.798.689.89
Run VMG2.453.544.535.386.116.697.147.918.74
Gybe Angles145.0°145.0°149.6°152.5°158.6°166.0°172.3°173.6°166.3°
APH ToD:568.5CDL: 8.929APH ToT: 1.0555CertNo:
BOAT
ClassMAT 10 MK2DesignerMillsBuilderM.A.T.Age date01/2005Series date01/1997Offset fileMAT10.offData fileTUR 1939
HULL
Length Overall10.040 mMaximum Beam3.142 mDraft2.054 mDisplacement4,560 kgDLR5.1534IMS DivisionCruiser/RacerDynamic Allowance0.250%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.405m
CREW
Maximum weight595 kg(declared)Minimum weight465 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail32.2232.87Headsail Luffed26.5926.59Headsail FlyingSymmetric80.3480.34Asymmetric
STORM SAIL AREAS (m²)
Trysail9.54Storm Jib8.05Heavy Weather Jib21.73
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
IRC ENDORSED 18Apr25
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
GEMINI IIITUR 1939
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 VMG1509.11086.5887.6786.1736.6716.9706.9701.4709.6
52°959.1709.1596.9543.1519.3508.4503.1498.3498.1
60°900.2671.9572.3527.4506.1494.5488.7482.5480.9
75°868.2650.0556.3515.6494.0479.3468.5457.0450.7
90°894.5657.7552.7510.4492.0474.0458.3435.6422.8
110°888.6647.5540.0497.2472.2452.4439.4419.8404.1
120°924.8669.1552.7502.3473.4448.7427.4398.3377.7
135°1052.7747.4601.3526.5489.7461.9436.5388.4334.0
150°1272.0880.7688.5581.0520.7488.0462.1414.7364.0
Run VMG1469.11017.0795.0669.2589.5538.0504.0455.2411.8
Selected Courses
Windward / Leeward1488.21051.7841.3727.6663.1627.5605.5578.3560.7
All purpose1126.5809.9661.5587.4547.8524.5508.3485.5468.3
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward696.10.8619
All purpose568.51.0555
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.90.9710
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.01048.2791.3658.5583.6544.0513.1464.5447.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7471
Downwind "popa"0.9195
70% up, 30% down "Ilhabela"0.7916
30% up, 70% down "Ilhabela-inverso"0.8599
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Predominantly Upwind617.20.9722
Predominantly Downwind575.01.0435
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low735.70.8156
Triple Number AP Medium564.71.0625
Triple Number AP High503.81.1910
Triple Number Windward/Leeward Low989.40.6064
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Single Number Predominant Upwind643.00.9332
Single Number Predominant Reaching567.51.0572
Single Number Predominant Downwind600.60.9990
Predominant Upwind - Low894.50.6707
Predominant Upwind - Low/Med678.70.8840
Predominant Upwind - Medium596.61.0058
Predominant Upwind - Med/High556.61.0780
Predominant Upwind - High539.61.1119
Predominant Downwind Low888.30.6755
Predominant Downwind Low/Med652.60.9194
Predominant Downwind Medium554.11.0828
Predominant Downwind Med/High492.71.2177
Predominant Downwind High454.51.3203
Predominant Reaching Low794.10.7556
Predominant Reaching Low/Med603.10.9949
Predominant Reaching Medium529.91.1323
Predominant Reaching Med/High485.51.2358
Predominant Reaching High457.31.3122
SA/DSPL Upwind21.28SA/DSPL Downwind40.73
Scoring OptionTODTOT
5-Band Windward/Leeward Low1108.40.5413
5-Band Windward/Leeward Low/Med805.90.7445
5-Band Windward/Leeward Medium677.90.8851
5-Band Windward/Leeward Med/High609.40.9845
5-Band Windward/Leeward High580.01.0346
Windward/Leeward 60-40 Low1115.20.5380
Windward/Leeward 60-40 Low/Med816.50.7349
Windward/Leeward 60-40 Medium692.70.8662
Windward/Leeward 60-40 Med/High629.60.9530
Windward/Leeward 60-40 High604.70.9922
5-Band AP Low813.90.7372
5-Band AP Low/Med640.40.9369
5-Band AP Medium556.61.0779
5-Band AP Med/High510.51.1753
5-Band AP High486.51.2334
5-Band SF Bay Tour - Low954.80.6284
5-Band SF Bay Tour - Low/Med771.70.7775
5-Band SF Bay Tour - Medium656.10.9145
5-Band SF Bay Tour - Med/High595.51.0075
5-Band SF Bay Tour - High568.01.0563
Chicago-Mac Upwind0.9042
Chicago-Mac All Purpose0.9354
Chicago-Mac Downwind0.9620
Bayview-Mac Cove Island0.6800
Bayview-Mac Shore0.6846
Harvest Moon Regatta493.21.2166
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.90.9710
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.01048.2791.3658.5583.6544.0513.1464.5447.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.90.9710
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.01048.2791.3658.5583.6544.0513.1464.5447.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance617.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.01048.2791.3658.5583.6544.0513.1464.5447.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating617.90.9710
FinRating, kevyt tuuli1088.90.9183
FinRating, kova tuuli489.11.0222
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9710
Triple Number Coastal/Long Distance Low0.8156
Triple Number Coastal/Long Distance Medium1.0626
Triple Number Coastal/Long Distance High1.1910
Triple Number Windward/Leeward Low0.6339
Triple Number Windward/Leeward Medium0.8689
Triple Number Windward/Leeward High0.9987
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.01048.2791.3658.5583.6544.0513.1464.5447.7
For information
General Purpose Handicap (GPH)639.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.90.9710
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.01048.2791.3658.5583.6544.0513.1464.5447.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.90.9710
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.01048.2791.3658.5583.6544.0513.1464.5447.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.90.9710
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.01048.2791.3658.5583.6544.0513.1464.5447.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low735.7
Triple Number Coastal/Long Distance Medium564.7
Triple Number Coastal/Long Distance High503.8
Triple Number Windward/Leeward Low946.5
Triple Number Windward/Leeward Medium690.5
Triple Number Windward/Leeward High600.8
Predominantly Upwind617.2
Predominantly Downwind575.0
Predominantly Reaching553.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.90.9710
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.01048.2791.3658.5583.6544.0513.1464.5447.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8156
Triple Number Coastal/Long Distance Medium1.0626
Triple Number Coastal/Long Distance High1.1910
Triple Number Windward/Leeward Low0.6339
Triple Number Windward/Leeward Medium0.8689
Triple Number Windward/Leeward High0.9987
Coastal/Long Distance0.9710
Predominantly Upwind0.9722
Predominantly Downwind1.0435
For information
General Purpose Handicap (GPH)639.2
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0555
Distanseseilas Trippeltall svak vind0.8156
Distanseseilas Trippeltall mellomvind1.0626
Distanseseilas Trippeltall sterk vind1.1910
Pølsebane Trippeltall svak vind0.6339
Pølsebane Trippeltall mellomvind0.8689
Pølsebane Trippeltall sterk vind0.9987
Motvind Singeltall0.9722
Medvind Singeltall1.0435
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Coastal/Long Distance617.90.9710
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind617.20.9722
Predominantly Downwind575.01.0435
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore566.01.0601
Cape Doctor Coastal473.51.2672
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8156
Triple Number Coastal/Long Distance Medium1.0626
Triple Number Coastal/Long Distance High1.1910
Triple Number Windward/Leeward Low0.6339
Triple Number Windward/Leeward Medium0.8689
Triple Number Windward/Leeward High0.9987
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8156
Triple Number Coastal/Long Distance Medium1.0626
Triple Number Coastal/Long Distance High1.1910
Triple Number Windward/Leeward Low0.6339
Triple Number Windward/Leeward Medium0.8689
Triple Number Windward/Leeward High0.9987
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.90.9710
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Predominantly Upwind617.20.9722
Predominantly Downwind575.01.0435
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.01048.2791.3658.5583.6544.0513.1464.5447.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.90.9710
Triple Number Coastal/Long Distance Low735.70.8156
Triple Number Coastal/Long Distance Medium564.71.0626
Triple Number Coastal/Long Distance High503.81.1910
Triple Number Windward/Leeward Low946.50.6339
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.01048.2791.3658.5583.6544.0513.1464.5447.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low735.70.8156
Triple Number AP Medium564.71.0625
Triple Number AP High503.81.1910
Triple Number Windward/Leeward Low989.40.6064
Triple Number Windward/Leeward Medium690.50.8689
Triple Number Windward/Leeward High600.80.9987
Single Number Predominant Upwind643.00.9332
Single Number Predominant Reaching567.51.0572
Single Number Predominant Downwind600.60.9990
Predominant Upwind - Low894.50.6707
Predominant Upwind - Low/Med678.70.8840
Predominant Upwind - Medium596.61.0058
Predominant Upwind - Med/High556.61.0780
Predominant Upwind - High539.61.1119
Predominant Downwind Low888.30.6755
Predominant Downwind Low/Med652.60.9194
Predominant Downwind Medium554.11.0828
Predominant Downwind Med/High492.71.2177
Predominant Downwind High454.51.3203
Predominant Reaching Low794.10.7556
Predominant Reaching Low/Med603.10.9949
Predominant Reaching Medium529.91.1323
Predominant Reaching Med/High485.51.2358
Predominant Reaching High457.31.3122
SA/DSPL Upwind21.28SA/DSPL Downwind40.73
Scoring OptionTODTOT
5-Band Windward/Leeward Low1108.40.5413
5-Band Windward/Leeward Low/Med805.90.7445
5-Band Windward/Leeward Medium677.90.8851
5-Band Windward/Leeward Med/High609.40.9845
5-Band Windward/Leeward High580.01.0346
Windward/Leeward 60-40 Low1115.20.5380
Windward/Leeward 60-40 Low/Med816.50.7349
Windward/Leeward 60-40 Medium692.70.8662
Windward/Leeward 60-40 Med/High629.60.9530
Windward/Leeward 60-40 High604.70.9922
5-Band AP Low813.90.7372
5-Band AP Low/Med640.40.9369
5-Band AP Medium556.61.0779
5-Band AP Med/High510.51.1753
5-Band AP High486.51.2334
5-Band SF Bay Tour - Low954.80.6284
5-Band SF Bay Tour - Low/Med771.70.7775
5-Band SF Bay Tour - Medium656.10.9145
5-Band SF Bay Tour - Med/High595.51.0075
5-Band SF Bay Tour - High568.01.0563
Chicago-Mac Upwind0.9042
Chicago-Mac All Purpose0.9354
Chicago-Mac Downwind0.9620
Bayview-Mac Cove Island0.6800
Bayview-Mac Shore0.6846
Harvest Moon Regatta493.21.2166
Club Certificate2025
GEMINI IIITUR 1939
Turkiye
Sailing
Federation
www.tyf.org.tr/
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMAT 10 MK2Measurement27/10/2025HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.040Max. Beam3.142Draft2.054Displacement4,560Wetted area22.17IMS L9.640LSM09.600Acc. length10.040Sink (kg/mm) 16.95
VCGD0.154VCGM-0.037RM Rated (kg·m) 93.9Limit of positive stability(°) N/AStability IndexN/ADefault crew weight649Declared crew weight595
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.405PBW0.130PIPA0.0034
EDL1.460ST10.042ST20.180
ST30.180ST40.112ST50.300
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P12.250IG12.628ISP13.973MDT10.125MDL10.185MDT20.125MDL20.147TL1.280MW0.147GO0.162
E4.450J3.350BAS1.458FSD0.035SFJ0.330SPL3.720WPLTPSBD0.220MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date27/10/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
GEMINI IIITUR 1939
Turkiye
Sailing
Federation
www.tyf.org.tr/
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.891.632.7932.22IRC
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.511.002.054.3812.38NoNo 26.59IRC
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentA13.7313.7313.737.027.0380.34IRC
CRUISER/RACER REQUIREMENTS*
Accommodation length10.0 mTable area0.44 m²Headroom1.70 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity80 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity50 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.