Club Certificate2025
SURPRISETUR 2284
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 Angles45.3°45.3°43.4°42.0°40.4°38.9°38.3°38.3°38.9°
Beat VMG2.303.264.074.715.215.555.725.855.83
52°3.655.086.227.027.567.888.078.218.23
60°3.955.426.547.317.788.088.278.458.51
75°4.135.636.757.507.958.258.498.848.98
90°4.055.666.947.778.238.498.679.029.39
110°4.145.817.147.978.458.869.219.7410.14
120°4.025.656.977.858.378.809.2210.0310.78
135°3.464.976.327.358.018.478.899.7810.92
150°2.874.175.376.447.317.908.309.009.74
Run VMG2.493.614.655.586.336.867.297.998.58
Gybe Angles142.4°142.4°146.2°147.1°149.7°152.3°157.0°162.4°161.5°
APH ToD:532.2CDL: 10.686APH ToT: 1.1273CertNo:
BOAT
ClassDufour 450 GLDesignerFelciBuilderDufour yachtsAge date03/2013Series date01/2013Offset fileDUF445CL-DK.offData fileTUR 2284 SURPRISE
HULL
Length Overall13.250 mMaximum Beam4.354 mDraft2.200 mDisplacement10,275 kgDLR6.3285IMS DivisionCruiser/RacerDynamic Allowance0.310%Age Allowance0.390%
PROPELLER
InstallationStrutTypeSolid 3 bladesDiameter0.400m
CREW
Maximum weight1,020 kg(declared)Minimum weight867 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail43.3443.94Headsail Luffed50.8050.80Headsail FlyingSymmetricAsymmetric140.67140.67 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail13.26Storm Jib12.49Heavy Weather Jib33.71
SAIL LIMITS
Headsails6
✱ One set on the forestay
Spinnakers5
STABILITY
Righting MomentN/AStability IndexN/A
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
SURPRISETUR 2284
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 VMG1567.91106.0883.8764.5691.3649.0629.9615.9617.5
52°985.1709.1579.2512.5476.3456.7446.2438.7437.2
60°912.0664.6550.3492.7462.8445.8435.3426.3423.3
75°871.6639.4533.3480.2452.8436.2423.9407.5400.9
90°888.4636.5518.7463.1437.4423.9415.4398.9383.5
110°868.6620.0504.2451.9425.9406.5390.8369.6355.0
120°894.7637.3516.3458.9430.3409.2390.6358.9333.8
135°1041.9723.7569.4489.5449.2425.1404.9368.2329.7
150°1252.6863.4670.7559.0492.5455.8433.7400.1369.7
Run VMG1446.3997.0774.5645.5568.7524.6493.7450.7419.4
Selected Courses
Windward / Leeward1506.91051.5829.2705.0630.0586.8561.8533.3518.5
All purpose1133.6800.7640.7556.1508.4480.5462.9440.7426.2
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward665.70.9013
All purpose532.21.1273
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.21.0289
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1599.41046.0776.1630.9544.3498.8467.9422.7406.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7865
Downwind "popa"0.9428
70% up, 30% down "Ilhabela"0.8276
30% up, 70% down "Ilhabela-inverso"0.8898
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Predominantly Upwind579.01.0363
Predominantly Downwind543.51.1040
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low720.70.8325
Triple Number AP Medium528.41.1355
Triple Number AP High459.01.3072
Triple Number Windward/Leeward Low984.60.6094
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Single Number Predominant Upwind607.20.9882
Single Number Predominant Reaching531.51.1288
Single Number Predominant Downwind570.91.0510
Predominant Upwind - Low895.50.6700
Predominant Upwind - Low/Med655.30.9157
Predominant Upwind - Medium555.11.0808
Predominant Upwind - Med/High503.11.1927
Predominant Upwind - High484.01.2396
Predominant Downwind Low873.00.6873
Predominant Downwind Low/Med624.70.9605
Predominant Downwind Medium519.61.1548
Predominant Downwind Med/High460.01.3043
Predominant Downwind High427.71.4029
Predominant Reaching Low780.50.7688
Predominant Reaching Low/Med571.61.0498
Predominant Reaching Medium487.81.2299
Predominant Reaching Med/High443.21.3537
Predominant Reaching High419.51.4302
SA/DSPL Upwind19.76SA/DSPL Downwind38.63
Scoring OptionTODTOT
5-Band Windward/Leeward Low1109.80.5406
5-Band Windward/Leeward Low/Med788.70.7607
5-Band Windward/Leeward Medium646.20.9285
5-Band Windward/Leeward Med/High566.91.0584
5-Band Windward/Leeward High535.71.1201
Windward/Leeward 60-40 Low1121.00.5352
Windward/Leeward 60-40 Low/Med800.20.7498
Windward/Leeward 60-40 Medium658.40.9113
Windward/Leeward 60-40 Med/High580.71.0332
Windward/Leeward 60-40 High552.21.0865
5-Band AP Low800.60.7495
5-Band AP Low/Med614.90.9758
5-Band AP Medium518.91.1564
5-Band AP Med/High466.01.2877
5-Band AP High442.11.3573
5-Band SF Bay Tour - Low951.20.6308
5-Band SF Bay Tour - Low/Med752.90.7969
5-Band SF Bay Tour - Medium621.10.9661
5-Band SF Bay Tour - Med/High548.51.0939
5-Band SF Bay Tour - High519.61.1546
Chicago-Mac Upwind0.9494
Chicago-Mac All Purpose0.9825
Chicago-Mac Downwind1.0088
Bayview-Mac Cove Island0.6907
Bayview-Mac Shore0.6952
Harvest Moon Regatta456.51.3144
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.21.0289
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1599.41046.0776.1630.9544.3498.8467.9422.7406.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.21.0289
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1599.41046.0776.1630.9544.3498.8467.9422.7406.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance583.2
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1599.41046.0776.1630.9544.3498.8467.9422.7406.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating583.11.0289
FinRating, kevyt tuuli1088.20.9190
FinRating, kova tuuli445.11.1234
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0289
Triple Number Coastal/Long Distance Low0.8325
Triple Number Coastal/Long Distance Medium1.1357
Triple Number Coastal/Long Distance High1.3072
Triple Number Windward/Leeward Low0.6381
Triple Number Windward/Leeward Medium0.9080
Triple Number Windward/Leeward High1.0765
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1599.41046.0776.1630.9544.3498.8467.9422.7406.6
For information
General Purpose Handicap (GPH)604.9
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.21.0289
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1599.41046.0776.1630.9544.3498.8467.9422.7406.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.21.0289
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1599.41046.0776.1630.9544.3498.8467.9422.7406.6
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.21.0289
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1599.41046.0776.1630.9544.3498.8467.9422.7406.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low720.7
Triple Number Coastal/Long Distance Medium528.3
Triple Number Coastal/Long Distance High459.0
Triple Number Windward/Leeward Low940.3
Triple Number Windward/Leeward Medium660.8
Triple Number Windward/Leeward High557.4
Predominantly Upwind579.0
Predominantly Downwind543.5
Predominantly Reaching517.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.21.0289
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1599.41046.0776.1630.9544.3498.8467.9422.7406.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8325
Triple Number Coastal/Long Distance Medium1.1357
Triple Number Coastal/Long Distance High1.3072
Triple Number Windward/Leeward Low0.6381
Triple Number Windward/Leeward Medium0.9080
Triple Number Windward/Leeward High1.0765
Coastal/Long Distance1.0289
Predominantly Upwind1.0363
Predominantly Downwind1.1040
For information
General Purpose Handicap (GPH)604.9
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1273
Distanseseilas Trippeltall svak vind0.8325
Distanseseilas Trippeltall mellomvind1.1357
Distanseseilas Trippeltall sterk vind1.3072
Pølsebane Trippeltall svak vind0.6381
Pølsebane Trippeltall mellomvind0.9080
Pølsebane Trippeltall sterk vind1.0765
Motvind Singeltall1.0363
Medvind Singeltall1.1040
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Coastal/Long Distance583.21.0289
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind579.01.0363
Predominantly Downwind543.51.1040
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore522.91.1474
Cape Doctor Coastal430.61.3935
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8325
Triple Number Coastal/Long Distance Medium1.1357
Triple Number Coastal/Long Distance High1.3072
Triple Number Windward/Leeward Low0.6381
Triple Number Windward/Leeward Medium0.9080
Triple Number Windward/Leeward High1.0765
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8325
Triple Number Coastal/Long Distance Medium1.1357
Triple Number Coastal/Long Distance High1.3072
Triple Number Windward/Leeward Low0.6381
Triple Number Windward/Leeward Medium0.9080
Triple Number Windward/Leeward High1.0765
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.21.0289
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Predominantly Upwind579.01.0363
Predominantly Downwind543.51.1040
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1599.41046.0776.1630.9544.3498.8467.9422.7406.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.21.0289
Triple Number Coastal/Long Distance Low720.70.8325
Triple Number Coastal/Long Distance Medium528.31.1357
Triple Number Coastal/Long Distance High459.01.3072
Triple Number Windward/Leeward Low940.30.6381
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1599.41046.0776.1630.9544.3498.8467.9422.7406.6
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low720.70.8325
Triple Number AP Medium528.41.1355
Triple Number AP High459.01.3072
Triple Number Windward/Leeward Low984.60.6094
Triple Number Windward/Leeward Medium660.80.9080
Triple Number Windward/Leeward High557.41.0765
Single Number Predominant Upwind607.20.9882
Single Number Predominant Reaching531.51.1288
Single Number Predominant Downwind570.91.0510
Predominant Upwind - Low895.50.6700
Predominant Upwind - Low/Med655.30.9157
Predominant Upwind - Medium555.11.0808
Predominant Upwind - Med/High503.11.1927
Predominant Upwind - High484.01.2396
Predominant Downwind Low873.00.6873
Predominant Downwind Low/Med624.70.9605
Predominant Downwind Medium519.61.1548
Predominant Downwind Med/High460.01.3043
Predominant Downwind High427.71.4029
Predominant Reaching Low780.50.7688
Predominant Reaching Low/Med571.61.0498
Predominant Reaching Medium487.81.2299
Predominant Reaching Med/High443.21.3537
Predominant Reaching High419.51.4302
SA/DSPL Upwind19.76SA/DSPL Downwind38.63
Scoring OptionTODTOT
5-Band Windward/Leeward Low1109.80.5406
5-Band Windward/Leeward Low/Med788.70.7607
5-Band Windward/Leeward Medium646.20.9285
5-Band Windward/Leeward Med/High566.91.0584
5-Band Windward/Leeward High535.71.1201
Windward/Leeward 60-40 Low1121.00.5352
Windward/Leeward 60-40 Low/Med800.20.7498
Windward/Leeward 60-40 Medium658.40.9113
Windward/Leeward 60-40 Med/High580.71.0332
Windward/Leeward 60-40 High552.21.0865
5-Band AP Low800.60.7495
5-Band AP Low/Med614.90.9758
5-Band AP Medium518.91.1564
5-Band AP Med/High466.01.2877
5-Band AP High442.11.3573
5-Band SF Bay Tour - Low951.20.6308
5-Band SF Bay Tour - Low/Med752.90.7969
5-Band SF Bay Tour - Medium621.10.9661
5-Band SF Bay Tour - Med/High548.51.0939
5-Band SF Bay Tour - High519.61.1546
Chicago-Mac Upwind0.9494
Chicago-Mac All Purpose0.9825
Chicago-Mac Downwind1.0088
Bayview-Mac Cove Island0.6907
Bayview-Mac Shore0.6952
Harvest Moon Regatta456.51.3144
Club Certificate2025
SURPRISETUR 2284
Turkiye
Sailing
Federation
www.tyf.org.tr/
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDufour 450 GLMeasurement09/03/2025HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA13.250Max. Beam4.354Draft2.200Displacement10,275Wetted area37.66IMS L12.041LSM011.752Acc. length13.500Sink (kg/mm) 30.08
VCGD0.261VCGM0.199RM Rated (kg·m) 301.8Limit of positive stability(°) N/AStability IndexN/ADefault crew weight867Declared crew weight1,020
PROPELLER
Propeller TypeSolid 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.400PBWPIPA0.0194
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P14.850IG15.800ISP16.900MDT10.100MDL10.110MDT2MDL2TLMWGO
E5.100J5.000BAS1.800FSD0.050SFJ0.130SPLWPLTPS5.900BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date09/03/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
SURPRISETUR 2284
Turkiye
Sailing
Federation
www.tyf.org.tr/
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.861.663.0543.34IRC STANDART 2024
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.741.483.156.9515.12NoNo 50.80IRC STANDART 2024
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment119.3316.1717.759.549.39102%140.67IRC STANDART 2024
CRUISER/RACER REQUIREMENTS*
Accommodation length13.5 mTable area0.66 m²Headroom1.87 mMinimum number of berths6Personal gear stowage0.24 m³Fresh water capacity225 lMinimum number of seats in cockpit6Food stowage0.36 m³Fuel capacity120 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.