Club Certificate2025
STILETTOGBR-165Y_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
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 Angles42.6°42.6°40.6°39.1°38.1°37.8°37.8°38.0°39.7°
Beat VMG2.223.003.584.004.174.254.304.344.24
52°3.374.515.295.715.885.966.026.086.07
60°3.564.725.475.876.056.136.196.266.27
75°3.684.845.575.996.226.366.446.556.59
90°3.674.925.756.146.316.476.646.856.95
110°3.674.915.746.196.526.776.947.187.37
120°3.504.735.606.116.446.757.047.477.73
135°3.104.255.165.846.246.556.867.528.23
150°2.573.654.595.395.956.296.597.187.87
Run VMG2.213.164.004.725.375.856.206.767.32
Gybe Angles148.5°148.5°154.1°157.6°165.5°175.4°178.6°179.0°178.6°
APH ToD:661.0CDL: 6.423APH ToT: 0.9077CertNo:16501
BOAT
ClassHOLMAN 31DesignerKim HolmanBuilderTucker Brown, EssexAge date02/1962Series date01/1961Offset fileH086.BOFData fileGBR165Y_C
HULL
Length Overall10.080 mMaximum Beam2.784 mDraft1.464 mDisplacement3,135 kgDLR11.0161IMS DivisionPerformanceDynamic Allowance0.480%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight680 kg(declared)Minimum weight550 kg ✱ when appliedNon Manual PowerRigCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail27.8628.37Headsail Luffed16.4116.41Headsail FlyingSymmetric47.9747.97Asymmetric
STORM SAIL AREAS (m²)
Trysail8.56Storm Jib4.63Heavy Weather Jib12.50
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
FICHERO OFF ESTIMADO DATOS IRC
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  03510003VHWIssued on 09/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
STILETTOGBR-165Y_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
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 VMG1623.31201.61006.7899.5863.4847.8837.8830.4848.5
52°1068.2798.2680.9630.0612.0603.7598.2592.0592.9
60°1010.0762.6658.3613.5595.4587.4581.7575.2574.0
75°978.5743.6645.9601.3579.1566.2558.9549.4545.9
90°981.1732.2625.9586.0570.1556.2542.1525.9518.2
110°981.0733.1626.7581.1552.5532.0518.6501.4488.3
120°1028.8761.0642.6589.7559.2533.3511.0482.0465.7
135°1161.8846.7698.0616.0577.4549.8525.1478.9437.7
150°1403.4987.2783.5668.1605.5572.2546.6501.3457.5
Run VMG1630.91139.9900.3762.8669.8615.2580.4532.6491.5
Selected Courses
Windward / Leeward1624.61170.8953.5831.1766.6731.5709.1681.5670.0
All purpose1237.9907.8755.8677.4639.4617.6601.9580.1568.4
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward801.40.7487
All purpose661.00.9077
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance716.70.8372
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1718.21167.7898.3755.7680.5640.3607.5555.9543.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6474
Downwind "popa"0.8076
70% up, 30% down "Ilhabela"0.6884
30% up, 70% down "Ilhabela-inverso"0.7518
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Predominantly Upwind716.90.8369
Predominantly Downwind665.20.9020
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low831.80.7213
Triple Number AP Medium656.40.9141
Triple Number AP High597.61.0040
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Single Number Predominant Upwind743.30.8072
Single Number Predominant Reaching657.50.9126
Single Number Predominant Downwind693.10.8657
Predominant Upwind - Low996.10.6023
Predominant Upwind - Low/Med775.50.7737
Predominant Upwind - Medium695.90.8622
Predominant Upwind - Med/High659.00.9105
Predominant Upwind - High643.40.9325
Predominant Downwind Low994.80.6032
Predominant Downwind Low/Med746.60.8037
Predominant Downwind Medium643.00.9331
Predominant Downwind Med/High581.01.0327
Predominant Downwind High545.11.1008
Predominant Reaching Low888.00.6757
Predominant Reaching Low/Med690.80.8686
Predominant Reaching Medium617.80.9713
Predominant Reaching Med/High576.01.0417
Predominant Reaching High551.01.0889
SA/DSPL Upwind20.59SA/DSPL Downwind35.27
Scoring OptionTODTOT
5-Band Windward/Leeward Low1230.50.4876
5-Band Windward/Leeward Low/Med914.80.6559
5-Band Windward/Leeward Medium782.20.7671
5-Band Windward/Leeward Med/High713.00.8415
5-Band Windward/Leeward High684.30.8768
Windward/Leeward 60-40 Low1236.10.4854
Windward/Leeward 60-40 Low/Med927.10.6472
Windward/Leeward 60-40 Medium801.00.7490
Windward/Leeward 60-40 Med/High738.50.8124
Windward/Leeward 60-40 High714.40.8399
5-Band AP Low913.90.6565
5-Band AP Low/Med733.30.8182
5-Band AP Medium648.60.9251
5-Band AP Med/High604.00.9934
5-Band AP High581.81.0312
5-Band SF Bay Tour - Low1067.70.5619
5-Band SF Bay Tour - Low/Med878.60.6829
5-Band SF Bay Tour - Medium760.90.7886
5-Band SF Bay Tour - Med/High701.00.8559
5-Band SF Bay Tour - High674.60.8895
Chicago-Mac Upwind0.7858
Chicago-Mac All Purpose0.8138
Chicago-Mac Downwind0.8371
Bayview-Mac Cove Island0.6060
Bayview-Mac Shore0.6105
Harvest Moon Regatta578.91.0364
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance716.70.8372
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1718.21167.7898.3755.7680.5640.3607.5555.9543.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance716.70.8372
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1718.21167.7898.3755.7680.5640.3607.5555.9543.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance716.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1718.21167.7898.3755.7680.5640.3607.5555.9543.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating716.70.8372
FinRating, kevyt tuuli1207.90.8279
FinRating, kova tuuli586.10.8531
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8372
Triple Number Coastal/Long Distance Low0.7213
Triple Number Coastal/Long Distance Medium0.9142
Triple Number Coastal/Long Distance High1.0040
Triple Number Windward/Leeward Low0.5649
Triple Number Windward/Leeward Medium0.7548
Triple Number Windward/Leeward High0.8519
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1718.21167.7898.3755.7680.5640.3607.5555.9543.3
For information
General Purpose Handicap (GPH)737.6
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance716.70.8372
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1718.21167.7898.3755.7680.5640.3607.5555.9543.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance716.70.8372
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1718.21167.7898.3755.7680.5640.3607.5555.9543.3
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance716.70.8372
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1718.21167.7898.3755.7680.5640.3607.5555.9543.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low831.8
Triple Number Coastal/Long Distance Medium656.3
Triple Number Coastal/Long Distance High597.6
Triple Number Windward/Leeward Low1062.1
Triple Number Windward/Leeward Medium794.9
Triple Number Windward/Leeward High704.3
Predominantly Upwind716.9
Predominantly Downwind665.2
Predominantly Reaching642.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance716.70.8372
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1718.21167.7898.3755.7680.5640.3607.5555.9543.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7213
Triple Number Coastal/Long Distance Medium0.9142
Triple Number Coastal/Long Distance High1.0040
Triple Number Windward/Leeward Low0.5649
Triple Number Windward/Leeward Medium0.7548
Triple Number Windward/Leeward High0.8519
Coastal/Long Distance0.8372
Predominantly Upwind0.8369
Predominantly Downwind0.9020
For information
General Purpose Handicap (GPH)737.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9077
Distanseseilas Trippeltall svak vind0.7213
Distanseseilas Trippeltall mellomvind0.9142
Distanseseilas Trippeltall sterk vind1.0040
Pølsebane Trippeltall svak vind0.5649
Pølsebane Trippeltall mellomvind0.7548
Pølsebane Trippeltall sterk vind0.8519
Motvind Singeltall0.8369
Medvind Singeltall0.9020
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Coastal/Long Distance716.70.8372
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind716.90.8369
Predominantly Downwind665.20.9020
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore673.40.8910
Cape Doctor Coastal571.91.0491
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7213
Triple Number Coastal/Long Distance Medium0.9142
Triple Number Coastal/Long Distance High1.0040
Triple Number Windward/Leeward Low0.5649
Triple Number Windward/Leeward Medium0.7548
Triple Number Windward/Leeward High0.8519
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7213
Triple Number Coastal/Long Distance Medium0.9142
Triple Number Coastal/Long Distance High1.0040
Triple Number Windward/Leeward Low0.5649
Triple Number Windward/Leeward Medium0.7548
Triple Number Windward/Leeward High0.8519
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance716.70.8372
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Predominantly Upwind716.90.8369
Predominantly Downwind665.20.9020
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1718.21167.7898.3755.7680.5640.3607.5555.9543.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance716.70.8372
Triple Number Coastal/Long Distance Low831.80.7213
Triple Number Coastal/Long Distance Medium656.30.9142
Triple Number Coastal/Long Distance High597.61.0040
Triple Number Windward/Leeward Low1062.10.5649
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1718.21167.7898.3755.7680.5640.3607.5555.9543.3
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low831.80.7213
Triple Number AP Medium656.40.9141
Triple Number AP High597.61.0040
Triple Number Windward/Leeward Low1106.40.5423
Triple Number Windward/Leeward Medium794.90.7548
Triple Number Windward/Leeward High704.30.8519
Single Number Predominant Upwind743.30.8072
Single Number Predominant Reaching657.50.9126
Single Number Predominant Downwind693.10.8657
Predominant Upwind - Low996.10.6023
Predominant Upwind - Low/Med775.50.7737
Predominant Upwind - Medium695.90.8622
Predominant Upwind - Med/High659.00.9105
Predominant Upwind - High643.40.9325
Predominant Downwind Low994.80.6032
Predominant Downwind Low/Med746.60.8037
Predominant Downwind Medium643.00.9331
Predominant Downwind Med/High581.01.0327
Predominant Downwind High545.11.1008
Predominant Reaching Low888.00.6757
Predominant Reaching Low/Med690.80.8686
Predominant Reaching Medium617.80.9713
Predominant Reaching Med/High576.01.0417
Predominant Reaching High551.01.0889
SA/DSPL Upwind20.59SA/DSPL Downwind35.27
Scoring OptionTODTOT
5-Band Windward/Leeward Low1230.50.4876
5-Band Windward/Leeward Low/Med914.80.6559
5-Band Windward/Leeward Medium782.20.7671
5-Band Windward/Leeward Med/High713.00.8415
5-Band Windward/Leeward High684.30.8768
Windward/Leeward 60-40 Low1236.10.4854
Windward/Leeward 60-40 Low/Med927.10.6472
Windward/Leeward 60-40 Medium801.00.7490
Windward/Leeward 60-40 Med/High738.50.8124
Windward/Leeward 60-40 High714.40.8399
5-Band AP Low913.90.6565
5-Band AP Low/Med733.30.8182
5-Band AP Medium648.60.9251
5-Band AP Med/High604.00.9934
5-Band AP High581.81.0312
5-Band SF Bay Tour - Low1067.70.5619
5-Band SF Bay Tour - Low/Med878.60.6829
5-Band SF Bay Tour - Medium760.90.7886
5-Band SF Bay Tour - Med/High701.00.8559
5-Band SF Bay Tour - High674.60.8895
Chicago-Mac Upwind0.7858
Chicago-Mac All Purpose0.8138
Chicago-Mac Downwind0.8371
Bayview-Mac Cove Island0.6060
Bayview-Mac Shore0.6105
Harvest Moon Regatta578.91.0364
ORC Ref  03510003VHWIssued on 09/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
STILETTOGBR-165Y_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassHOLMAN 31MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.080Max. Beam2.784Draft1.464Displacement3,135Wetted area18.07IMS L6.863LSM06.577Acc. length9.048Sink (kg/mm) 9.55
VCGD-0.100VCGM0.037RM Rated (kg·m) 18.4Limit of positive stability(°) N/AStability IndexN/ADefault crew weight379Declared crew weight680
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footYesRunning backstays0CheckstaysSpreaders1Rotating mastNo
P11.080IG9.620ISP9.620MDT10.100MDL10.110MDT2MDL2TLMWGO
E4.410J3.080BAS1.000FSD0.040SFJ0.300SPL3.420WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.100Flotation Date09/07/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03510003VHWIssued on 09/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
STILETTOGBR-165Y_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.781.452.5727.86IRC
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.480.931.743.329.60NoNo 16.41IRC
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment110.0510.0510.055.775.5647.97IRC
ORC Ref  03510003VHWIssued on 09/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org