Club Certificate2026
STILETTOGBR-165Y_C
Centre de Calcul FFVoile
17 rue Henri Bocquillon
75015 Paris
France
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 Angles45.8°42.7°39.8°39.4°39.7°40.1°40.4°42.3°45.6°
Beat VMG2.142.983.523.723.803.833.843.783.53
52°3.344.505.155.435.555.615.655.675.49
60°3.584.715.365.655.785.875.925.955.89
75°3.744.855.545.886.066.166.226.296.30
90°3.674.915.625.956.196.366.486.636.71
110°3.664.935.746.166.416.596.726.947.08
120°3.504.755.626.116.426.706.957.227.41
135°3.044.275.185.866.256.566.897.507.87
150°2.493.664.615.415.966.306.607.257.87
Run VMG2.163.174.014.745.395.866.216.797.39
Gybe Angles136.3°148.7°154.1°157.6°165.7°174.5°178.6°178.6°178.6°
APH ToD:684.2CDL: 5.890APH ToT: 0.8769CertNo:26267a
BOAT
ClassHOLMAN 31DesignerKim HolmanBuilderTucker Brown, EssexAge date02/1962Series date01/1961Offset fileH086.BOFData fileGBR165Y_26267a
HULL
Length Overall10.080 mMaximum Beam2.784 mDraft1.478 mDisplacement3,135 kgDLR10.9069IMS DivisionPerformanceDynamic Allowance0.500%Age Allowance0.650%RS Assessment-0.356%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight380 kg(default)Minimum weight250 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail27.8628.37Headsail Luffed16.4116.41Headsail FlyingSymmetric47.9747.97Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail8.56Storm Jib4.63Heavy Weather Jib12.50
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 19.3 kg·m Stability Index 124.8
COMMENTS
2026: NC / IRC Data / From: GBR165Y_C.dxt
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  04330004QB0 Issued on 19/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
STILETTOGBR-165Y_C
Centre de Calcul FFVoile
17 rue Henri Bocquillon
75015 Paris
France
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 VMG1684.91208.61023.9967.0948.4940.6936.6953.21019.6
52°1076.7800.8699.3662.6649.0641.6636.7635.5655.2
60°1005.2763.6671.9636.8622.4613.7608.5604.7611.2
75°962.4742.9650.0612.2594.1584.8578.6572.2571.6
90°980.7732.5640.3605.1581.1566.3555.9543.3536.7
110°984.8730.9626.8584.5561.4546.3535.7518.7508.5
120°1029.2758.5640.9588.9560.4537.5518.3498.5486.0
135°1183.0843.4695.3614.6576.5548.9522.6480.2457.4
150°1444.3983.5780.8665.9604.2571.4545.5496.4457.7
Run VMG1667.81135.6897.4760.3668.1614.0579.5530.4486.9
Selected Courses
Windward / Leeward1676.31172.1960.6863.6808.2777.3758.0741.8753.2
All purpose1263.0908.1762.6698.4665.2646.1632.6617.6621.5
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward838.20.7158
All purpose684.20.8769
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance740.70.8100
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1675.51168.5905.2782.1710.9669.9635.8582.5578.1
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6019
Downwind "popa"0.8100
70% up, 30% down "Ilhabela"0.6521
30% up, 70% down "Ilhabela-inverso"0.7339
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Predominantly Upwind750.70.7993
Predominantly Downwind674.10.8901
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP711.70.8430 Predom. Rc High576.71.0403 5B SF Bay L/M896.30.6694 TriNum AP Low835.30.7183 Predom. Dn Low1001.10.5993 5B SF Bay Med799.80.7501 TriNum AP Med679.70.8828 Predom. Dn L/M753.10.7967 5B SF Bay M/H751.10.7988 TriNum AP High630.30.9519 Predom. Dn Med654.10.9173 5B SF Bay High738.00.8130 TriNum W/L Low1117.70.5368 Predom. Dn M/H594.51.0093 5B AP Low918.70.6531 TriNum W/L Med831.70.7214 Predom. Dn High563.31.0651 5B AP L/M747.00.8032 TriNum W/L Hig756.70.7929 ChiMac Up Low905.50.6626 5B AP Med672.90.8917 Predom. Upwind780.40.7689 ChiMac Up Med835.70.7180 5B AP M/H635.10.9448 Predom. Reaching674.00.8902 ChiMac Up High755.30.7944 5B AP High620.90.9664 Predom. Downwind704.50.8516 ChiMac Off Low869.10.6904 5B W/L Low1245.30.4818 Predom. Up Low1007.70.5954 ChiMac Off Med775.40.7738 5B W/L L/M935.10.6417 Predom. Up L/M799.00.7509 ChiMac Off High665.00.9022 5B W/L Med820.80.7310 Predom. Up Med734.70.8167 ChiMac AP Low883.00.6795 5B W/L M/H762.80.7866 Predom. Up M/H706.30.8495 ChiMac AP Med802.40.7478 5B W/L High746.60.8037 Predom. Up High702.40.8542 ChiMac AP High708.00.8475 W/L 60-40 Low1252.50.4790 Predom. Rc Low894.00.6712 BayMac Cove Island1011.70.5931 W/L 60-40 L/M952.00.6302 Predom. Rc L/M702.90.8536 BayMac Shore1003.50.5979 W/L 60-40 Med847.70.7078 Predom. Rc Med634.80.9452 Harvest Moon596.01.0066 W/L 60-40 M/H798.50.7515 Predom. Rc M/H595.71.0072 5B SF Bay Low1055.20.5686 W/L 60-40 High789.60.7598      SA/DSPL Up20.59SA/DSPL Dn35.27
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance740.70.8100
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1675.51168.5905.2782.1710.9669.9635.8582.5578.1
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance740.70.8100
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1675.51168.5905.2782.1710.9669.9635.8582.5578.1
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance740.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1675.51168.5905.2782.1710.9669.9635.8582.5578.1
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating740.70.8101
FinRating, kevyt tuuli1225.20.8162
FinRating, kova tuuli624.50.8006
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8100
Triple Number Coastal/Long Distance Low0.7183
Triple Number Coastal/Long Distance Medium0.8829
Triple Number Coastal/Long Distance High0.9519
Triple Number Windward/Leeward Low0.5627
Triple Number Windward/Leeward Medium0.7214
Triple Number Windward/Leeward High0.7929
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1675.51168.5905.2782.1710.9669.9635.8582.5578.1
For information
General Purpose Handicap (GPH)757.8
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance740.70.8100
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Saronikos S All Purpose771.30.7779
Saronikos S Upwind876.50.6845
Saronikos S Downwind632.50.9485
Saronikos N All Purpose815.00.7362
Saronikos N Upwind913.40.6569
Saronikos N Downwind688.30.8717
Saronikos SW All Purpose768.50.7807
Saronikos SW Upwind881.70.6805
Saronikos SW Downwind646.50.9281
Saronikos NE All Purpose832.40.7208
Saronikos NE Upwind851.30.7048
Saronikos NE Downwind769.10.7802
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1675.51168.5905.2782.1710.9669.9635.8582.5578.1
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose711.70.8430
5-Band All Purpose Low999.60.6003
5-Band All Purpose L/M773.60.7756
5-Band All Purpose Med692.70.8661
5-Band All Purpose M/H649.20.9242
5-Band All Purpose High632.00.9493
Single Number Predominant Upwind748.80.8013
Single Number Predominant Reaching649.20.9242
Single Number Predominant Downwind675.60.8882
5-Band 50-50 Windward/Leeward Low1245.30.4818
5-Band 50-50 Windward/Leeward L/M935.10.6417
5-Band 50-50 Windward/Leeward Med820.80.7310
5-Band 50-50 Windward/Leeward M/H762.80.7866
5-Band 50-50 Windward/Leeward High746.60.8037
5-Band 60-40 Windward/Leeward Low1252.50.4790
5-Band 60-40 Windward/Leeward L/M952.00.6302
5-Band 60-40 Windward/Leeward Med847.70.7078
5-Band 60-40 Windward/Leeward M/H798.50.7515
5-Band 60-40 Windward/Leeward High789.60.7598
Triple Number 50-50 Windward/Leeward Low1117.70.5368
Triple Number 50-50 Windward/Leeward Med831.70.7214
Triple Number 50-50 Windward/Leeward High756.80.7929
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward864.60.6940
Triple Number 60-40 Windward/Leeward Low1127.60.5321
Triple Number 60-40 Windward/Leeward Med857.20.7000
Triple Number 60-40 Windward/Leeward High794.20.7555
Triple Number All-Purpose Low905.90.6623
Triple Number All-Purpose Med700.40.8566
Triple Number All-Purpose High643.60.9323
Triple Number Predominant Upwind Low927.10.6472
Triple Number Predominant Upwind Med742.40.8082
Triple Number Predominant Upwind High714.80.8394
Triple Number Predominant Reaching Low820.20.7315
Triple Number Predominant Reaching Med653.10.9186
Triple Number Predominant Reaching High578.71.0368
Triple Number Predominant Downwind Low899.70.6669
Triple Number Predominant Downwind Med661.90.9065
Triple Number Predominant Downwind High569.01.0544
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance740.70.8100
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1675.51168.5905.2782.1710.9669.9635.8582.5578.1
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance740.70.8100
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1675.51168.5905.2782.1710.9669.9635.8582.5578.1
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low835.3
Triple Number Coastal/Long Distance Medium679.6
Triple Number Coastal/Long Distance High630.3
Triple Number Windward/Leeward Low1066.3
Triple Number Windward/Leeward Medium831.7
Triple Number Windward/Leeward High756.7
Predominantly Upwind750.7
Predominantly Downwind674.1
Predominantly Reaching654.0
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance740.70.8100
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1675.51168.5905.2782.1710.9669.9635.8582.5578.1
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7183
Triple Number Coastal/Long Distance Medium0.8829
Triple Number Coastal/Long Distance High0.9519
Triple Number Windward/Leeward Low0.5627
Triple Number Windward/Leeward Medium0.7214
Triple Number Windward/Leeward High0.7929
Coastal/Long Distance0.8100
Predominantly Upwind0.7993
Predominantly Downwind0.8901
For information
General Purpose Handicap (GPH)757.8
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.8769
Distanseseilas Trippeltall svak vind0.7183
Distanseseilas Trippeltall mellomvind0.8829
Distanseseilas Trippeltall sterk vind0.9519
Pølsebane Trippeltall svak vind0.5627
Pølsebane Trippeltall mellomvind0.7214
Pølsebane Trippeltall sterk vind0.7929
Motvind Singeltall0.7993
Medvind Singeltall0.8901
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Coastal/Long Distance740.70.8100
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind750.70.7993
Predominantly Downwind674.10.8901
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore749.80.8002
Cape Doctor Coastal620.30.9672
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7183
Triple Number Coastal/Long Distance Medium0.8829
Triple Number Coastal/Long Distance High0.9519
Triple Number Windward/Leeward Low0.5627
Triple Number Windward/Leeward Medium0.7214
Triple Number Windward/Leeward High0.7929
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7183
Triple Number Coastal/Long Distance Medium0.8829
Triple Number Coastal/Long Distance High0.9519
Triple Number Windward/Leeward Low0.5627
Triple Number Windward/Leeward Medium0.7214
Triple Number Windward/Leeward High0.7929
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance740.70.8100
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Predominantly Upwind750.70.7993
Predominantly Downwind674.10.8901
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1675.51168.5905.2782.1710.9669.9635.8582.5578.1
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance740.70.8100
Triple Number Coastal/Long Distance Low835.30.7183
Triple Number Coastal/Long Distance Medium679.60.8829
Triple Number Coastal/Long Distance High630.30.9519
Triple Number Windward/Leeward Low1066.30.5627
Triple Number Windward/Leeward Medium831.70.7214
Triple Number Windward/Leeward High756.70.7929
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1675.51168.5905.2782.1710.9669.9635.8582.5578.1
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP711.70.8430 Predom. Dn High563.31.0651 5B AP M/H635.10.9448 TriNum AP Low835.30.7183 Predom. Rc Low894.00.6712 5B AP High620.90.9664 TriNum AP Med679.70.8828 Predom. Rc L/M702.90.8536 5B SF Bay Low1055.20.5686 TriNum AP High630.30.9519 Predom. Rc Med634.80.9452 5B SF Bay L/M896.30.6694 TriNum W/L Low1117.70.5368 Predom. Rc M/H595.71.0072 5B SF Bay Med799.80.7501 TriNum W/L Med831.70.7214 Predom. Rc High576.71.0403 5B SF Bay M/H751.10.7988 TriNum W/L Hig756.70.7929 5B W/L Low1245.30.4818 5B SF Bay High738.00.8130 Predom. Upwind780.40.7689 5B W/L L/M935.10.6417 ChiMac Up Low905.50.6626 Predom. Reaching674.00.8902 5B W/L Med820.80.7310 ChiMac Up Med835.70.7180 Predom. Downwind704.50.8516 5B W/L M/H762.80.7866 ChiMac Up High755.30.7944 Predom. Up Low1007.70.5954 5B W/L High746.60.8037 ChiMac Off Low869.10.6904 Predom. Up L/M799.00.7509 W/L 60-40 Low1252.50.4790 ChiMac Off Med775.40.7738 Predom. Up Med734.70.8167 W/L 60-40 L/M952.00.6302 ChiMac Off High665.00.9022 Predom. Up M/H706.30.8495 W/L 60-40 Med847.70.7078 ChiMac AP Low883.00.6795 Predom. Up High702.40.8542 W/L 60-40 M/H798.50.7515 ChiMac AP Med802.40.7478 Predom. Dn Low1001.10.5993 W/L 60-40 High789.60.7598 ChiMac AP High708.00.8475 Predom. Dn L/M753.10.7967 5B AP Low918.70.6531 BayMac Cove Island1011.70.5931 Predom. Dn Med654.10.9173 5B AP L/M747.00.8032 BayMac Shore1003.50.5979 Predom. Dn M/H594.51.0093 5B AP Med672.90.8917 Harvest Moon596.01.0066      SA/DSPL Up20.59SA/DSPL Dn35.27
ORC Ref  04330004QB0 Issued on 19/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
STILETTOGBR-165Y_C
Centre de Calcul FFVoile
17 rue Henri Bocquillon
75015 Paris
France
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassHOLMAN 31MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall10.080Maximum beam2.784Draft1.478Displacement3,135Wetted area18.16IMS L6.822LSM06.599Accomod. length9.048Sink (kg/mm) 9.63
VCGD-0.100VCGM0.036 RM Rated (kg·m) 19.3Limit of positive stability(°) 124.4 Stability Index 124.8 BLR index 0.0000Default crew weight380 Declared crew weight
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
BackstayAdjustable (NMP)ForestayFixedInner forestayNot installedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastAdjustable (NMP)Running backstaysNoCheckstaysNoSpreaders1Rotating mastNo
P11.080IG9.620ISP9.620MDT10.100MDL10.110MDT2MDL2TLMWGO
E4.410J3.080BAS1.000FSD0.040SFJ0.300SPL3.420WPLTPSBDMWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.100Flotation Date09/07/2025
SFFP0.760FFMFF1.348LCFcl5.365SG
SAFP8.586FAMFA0.981LCFsh5.547HBI1.121
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04330004QB0 Issued on 19/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
STILETTOGBR-165Y_C
Centre de Calcul FFVoile
17 rue Henri Bocquillon
75015 Paris
France
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
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsYes
ORC Ref  04330004QB0 Issued on 19/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org