Club Certificate2026
XTREM JPFRA-38377
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 Angles45.6°43.1°41.2°39.1°37.3°37.1°36.9°37.5°39.0°
Beat VMG2.213.153.824.324.644.764.824.834.78
52°3.464.795.666.166.466.626.716.806.82
60°3.715.045.876.316.636.856.967.107.14
75°3.895.196.016.456.817.147.387.647.75
90°3.965.476.336.726.987.217.598.198.54
110°4.075.626.497.107.617.978.339.029.69
120°3.965.496.427.057.688.328.889.8611.00
135°3.534.976.026.687.287.968.8211.3713.56
150°2.944.225.286.106.677.177.709.6513.53
Run VMG2.543.664.585.295.806.226.678.3511.72
Gybe Angles140.5°144.1°148.5°150.8°153.4°151.9°147.8°139.0°145.2°
APH ToD:590.1CDL: 7.432APH ToT: 1.0167CertNo:26273a
BOAT
ClassCORK 1720DesignerTONY CASTROBuilder1720 YACHT UKAge date01/1995Series date01/1994Offset fileCORK1720.OFFData fileF38377_26273a
HULL
Length Overall7.828 mMaximum Beam2.414 mDraft1.629 mDisplacement1,500 kgDLR4.1438IMS DivisionSportboatDynamic Allowance0.180%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight425 kg(default)Minimum weight295 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail21.1621.70Headsail Luffed15.1915.19Headsail FlyingSymmetricAsymmetric65.2765.27 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS Maximum (m²)
Trysail6.06Storm Jib4.34Heavy Weather Jib11.71
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 40.4 kg·m Stability Index 99.3
COMMENTS
2025-2026: NC / 2024b: Sails meas, P, E / 2023: Jib meas corr. / P&E TBC / From: IRL1759.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  04330004QEE Issued on 19/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
XTREM JPFRA-38377
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 VMG1627.01144.3941.6834.1776.6756.5747.0744.6753.5
52°1039.3751.8636.5584.7557.0543.8536.8529.6528.2
60°969.2714.7613.5570.1542.9525.6517.0507.0504.4
75°925.7693.4599.2558.4529.0504.0487.9471.5464.5
90°908.4657.8568.9535.4515.5499.2474.3439.5421.7
110°884.0641.1554.4506.8473.0451.5432.4399.1371.6
120°908.8655.5561.1511.0469.0432.8405.6365.1327.3
135°1019.2723.8597.5538.9494.5452.4408.4316.5265.5
150°1226.3852.4681.4590.1539.9502.3467.7373.2266.0
Run VMG1416.0984.2786.8681.0620.5579.2540.0430.9307.2
Selected Courses
Windward / Leeward1521.51064.3864.2757.6698.5667.9643.5587.8530.4
All purpose1155.3822.0683.4614.2572.7546.8524.9484.3449.8
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward728.00.8242
All purpose590.11.0167
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1511.01056.3812.6686.5610.4567.0529.2460.8424.9
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7065
Downwind "popa"0.9086
70% up, 30% down "Ilhabela"0.7570
30% up, 70% down "Ilhabela-inverso"0.8368
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Predominantly Upwind647.80.9262
Predominantly Downwind589.81.0173
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP610.90.9822 Predom. Rc High448.21.3386 5B SF Bay L/M795.20.7546 TriNum AP Low752.70.7971 Predom. Dn Low883.50.6791 5B SF Bay Med686.30.8742 TriNum AP Med589.31.0181 Predom. Dn L/M664.20.9033 5B SF Bay M/H620.50.9670 TriNum AP High515.11.1647 Predom. Dn Med573.81.0457 5B SF Bay High571.71.0495 TriNum W/L Low1009.30.5945 Predom. Dn M/H500.41.1989 5B AP Low827.60.7250 TriNum W/L Med724.40.8283 Predom. Dn High431.51.3903 5B AP L/M663.10.9049 TriNum W/L Hig628.70.9544 ChiMac Up Low818.70.7329 5B AP Med580.51.0336 Predom. Upwind673.80.8905 ChiMac Up Med737.90.8131 5B AP M/H525.71.1412 Predom. Reaching582.31.0304 ChiMac Up High642.50.9338 5B AP High485.41.2362 Predom. Downwind609.70.9841 ChiMac Off Low766.80.7825 5B W/L Low1128.60.5317 Predom. Up Low931.20.6443 ChiMac Off Med679.80.8827 5B W/L L/M831.60.7215 Predom. Up L/M711.40.8434 ChiMac Off High569.51.0536 5B W/L Med712.50.8421 Predom. Up Med628.60.9544 ChiMac AP Low789.20.7603 5B W/L M/H642.80.9335 Predom. Up M/H582.31.0303 ChiMac AP Med706.50.8492 5B W/L High587.51.0213 Predom. Up High555.51.0801 ChiMac AP High604.80.9921 W/L 60-40 Low1145.70.5237 Predom. Rc Low803.50.7468 BayMac Cove Island904.10.6637 W/L 60-40 L/M847.10.7083 Predom. Rc L/M621.40.9655 BayMac Shore898.10.6680 W/L 60-40 Med728.80.8232 Predom. Rc Med551.01.0889 Harvest Moon508.31.1803 W/L 60-40 M/H664.40.9031 Predom. Rc M/H494.81.2125 5B SF Bay Low958.80.6258 W/L 60-40 High619.30.9689      SA/DSPL Up27.71SA/DSPL Dn65.87
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1511.01056.3812.6686.5610.4567.0529.2460.8424.9
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1511.01056.3812.6686.5610.4567.0529.2460.8424.9
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance640.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1511.01056.3812.6686.5610.4567.0529.2460.8424.9
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating640.60.9366
FinRating, kevyt tuuli1108.10.9024
FinRating, kova tuuli484.51.0319
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9366
Triple Number Coastal/Long Distance Low0.7971
Triple Number Coastal/Long Distance Medium1.0182
Triple Number Coastal/Long Distance High1.1647
Triple Number Windward/Leeward Low0.6223
Triple Number Windward/Leeward Medium0.8283
Triple Number Windward/Leeward High0.9544
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1511.01056.3812.6686.5610.4567.0529.2460.8424.9
For information
General Purpose Handicap (GPH)661.4
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Saronikos S All Purpose671.60.8933
Saronikos S Upwind779.10.7701
Saronikos S Downwind536.41.1185
Saronikos N All Purpose708.80.8465
Saronikos N Upwind812.90.7381
Saronikos N Downwind599.81.0004
Saronikos SW All Purpose673.50.8909
Saronikos SW Upwind801.40.7487
Saronikos SW Downwind543.21.1046
Saronikos NE All Purpose728.50.8237
Saronikos NE Upwind760.90.7885
Saronikos NE Downwind666.10.9008
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1511.01056.3812.6686.5610.4567.0529.2460.8424.9
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose610.90.9822
5-Band All Purpose Low903.20.6643
5-Band All Purpose L/M685.80.8748
5-Band All Purpose Med600.50.9991
5-Band All Purpose M/H541.61.1079
5-Band All Purpose High494.31.2138
Single Number Predominant Upwind646.80.9277
Single Number Predominant Reaching563.71.0645
Single Number Predominant Downwind590.81.0156
5-Band 50-50 Windward/Leeward Low1128.60.5317
5-Band 50-50 Windward/Leeward L/M831.60.7215
5-Band 50-50 Windward/Leeward Med712.50.8421
5-Band 50-50 Windward/Leeward M/H642.80.9335
5-Band 50-50 Windward/Leeward High587.51.0213
5-Band 60-40 Windward/Leeward Low1145.70.5237
5-Band 60-40 Windward/Leeward L/M847.10.7083
5-Band 60-40 Windward/Leeward Med728.80.8232
5-Band 60-40 Windward/Leeward M/H664.40.9031
5-Band 60-40 Windward/Leeward High619.30.9689
Triple Number 50-50 Windward/Leeward Low1009.30.5945
Triple Number 50-50 Windward/Leeward Med724.40.8282
Triple Number 50-50 Windward/Leeward High628.70.9544
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward745.30.8051
Triple Number 60-40 Windward/Leeward Low1025.60.5851
Triple Number 60-40 Windward/Leeward Med740.50.8103
Triple Number 60-40 Windward/Leeward High652.60.9193
Triple Number All-Purpose Low814.40.7367
Triple Number All-Purpose Med609.70.9841
Triple Number All-Purpose High529.11.1340
Triple Number Predominant Upwind Low846.80.7086
Triple Number Predominant Upwind Med639.80.9378
Triple Number Predominant Upwind High583.51.0283
Triple Number Predominant Reaching Low733.90.8176
Triple Number Predominant Reaching Med569.01.0545
Triple Number Predominant Reaching High472.61.2696
Triple Number Predominant Downwind Low794.70.7550
Triple Number Predominant Downwind Med583.81.0278
Triple Number Predominant Downwind High469.91.2768
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1511.01056.3812.6686.5610.4567.0529.2460.8424.9
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1511.01056.3812.6686.5610.4567.0529.2460.8424.9
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low752.7
Triple Number Coastal/Long Distance Medium589.3
Triple Number Coastal/Long Distance High515.2
Triple Number Windward/Leeward Low964.2
Triple Number Windward/Leeward Medium724.4
Triple Number Windward/Leeward High628.7
Predominantly Upwind647.8
Predominantly Downwind589.8
Predominantly Reaching569.2
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1511.01056.3812.6686.5610.4567.0529.2460.8424.9
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7971
Triple Number Coastal/Long Distance Medium1.0182
Triple Number Coastal/Long Distance High1.1647
Triple Number Windward/Leeward Low0.6223
Triple Number Windward/Leeward Medium0.8283
Triple Number Windward/Leeward High0.9544
Coastal/Long Distance0.9366
Predominantly Upwind0.9262
Predominantly Downwind1.0173
For information
General Purpose Handicap (GPH)661.4
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0167
Distanseseilas Trippeltall svak vind0.7971
Distanseseilas Trippeltall mellomvind1.0182
Distanseseilas Trippeltall sterk vind1.1647
Pølsebane Trippeltall svak vind0.6223
Pølsebane Trippeltall mellomvind0.8283
Pølsebane Trippeltall sterk vind0.9544
Motvind Singeltall0.9262
Medvind Singeltall1.0173
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Coastal/Long Distance640.60.9366
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind647.80.9262
Predominantly Downwind589.81.0173
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore547.61.0957
Cape Doctor Coastal460.21.3039
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7971
Triple Number Coastal/Long Distance Medium1.0182
Triple Number Coastal/Long Distance High1.1647
Triple Number Windward/Leeward Low0.6223
Triple Number Windward/Leeward Medium0.8283
Triple Number Windward/Leeward High0.9544
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7971
Triple Number Coastal/Long Distance Medium1.0182
Triple Number Coastal/Long Distance High1.1647
Triple Number Windward/Leeward Low0.6223
Triple Number Windward/Leeward Medium0.8283
Triple Number Windward/Leeward High0.9544
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Predominantly Upwind647.80.9262
Predominantly Downwind589.81.0173
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1511.01056.3812.6686.5610.4567.0529.2460.8424.9
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium589.31.0182
Triple Number Coastal/Long Distance High515.21.1647
Triple Number Windward/Leeward Low964.20.6223
Triple Number Windward/Leeward Medium724.40.8283
Triple Number Windward/Leeward High628.70.9544
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1511.01056.3812.6686.5610.4567.0529.2460.8424.9
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP610.90.9822 Predom. Dn High431.51.3903 5B AP M/H525.71.1412 TriNum AP Low752.70.7971 Predom. Rc Low803.50.7468 5B AP High485.41.2362 TriNum AP Med589.31.0181 Predom. Rc L/M621.40.9655 5B SF Bay Low958.80.6258 TriNum AP High515.11.1647 Predom. Rc Med551.01.0889 5B SF Bay L/M795.20.7546 TriNum W/L Low1009.30.5945 Predom. Rc M/H494.81.2125 5B SF Bay Med686.30.8742 TriNum W/L Med724.40.8283 Predom. Rc High448.21.3386 5B SF Bay M/H620.50.9670 TriNum W/L Hig628.70.9544 5B W/L Low1128.60.5317 5B SF Bay High571.71.0495 Predom. Upwind673.80.8905 5B W/L L/M831.60.7215 ChiMac Up Low818.70.7329 Predom. Reaching582.31.0304 5B W/L Med712.50.8421 ChiMac Up Med737.90.8131 Predom. Downwind609.70.9841 5B W/L M/H642.80.9335 ChiMac Up High642.50.9338 Predom. Up Low931.20.6443 5B W/L High587.51.0213 ChiMac Off Low766.80.7825 Predom. Up L/M711.40.8434 W/L 60-40 Low1145.70.5237 ChiMac Off Med679.80.8827 Predom. Up Med628.60.9544 W/L 60-40 L/M847.10.7083 ChiMac Off High569.51.0536 Predom. Up M/H582.31.0303 W/L 60-40 Med728.80.8232 ChiMac AP Low789.20.7603 Predom. Up High555.51.0801 W/L 60-40 M/H664.40.9031 ChiMac AP Med706.50.8492 Predom. Dn Low883.50.6791 W/L 60-40 High619.30.9689 ChiMac AP High604.80.9921 Predom. Dn L/M664.20.9033 5B AP Low827.60.7250 BayMac Cove Island904.10.6637 Predom. Dn Med573.81.0457 5B AP L/M663.10.9049 BayMac Shore898.10.6680 Predom. Dn M/H500.41.1989 5B AP Med580.51.0336 Harvest Moon508.31.1803      SA/DSPL Up27.71SA/DSPL Dn65.87
ORC Ref  04330004QEE Issued on 19/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
XTREM JPFRA-38377
Centre de Calcul FFVoile
17 rue Henri Bocquillon
75015 Paris
France
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassCORK 1720MeasurementHIN1632Plan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall7.828Maximum beam2.414Draft1.629Displacement1,500Wetted area13.09IMS L7.468LSM07.126Accomod. length7.827Sink (kg/mm) 10.70
VCGD0.012VCGM-0.017 RM Rated (kg·m) 40.4Limit of positive stability(°) 104.4 Stability Index 99.3 BLR index 0.0000Default crew weight425 Declared crew weight 400
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 backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P9.750IG9.310ISP10.937MDT10.090MDL10.130MDT20.000MDL20.000TLTaperMW0.000GO
E3.550J3.100BAS0.980FSDNo FoilSFJ0.040SPLWPLTPS4.950BD0.120MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.012Flotation Date01/01/2013
SFFP0.250FFM0.851FF0.851LCFcl4.391SG1.0245
SAFP7.750FAM0.622FA0.622LCFsh4.554HBI0.739
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04330004QEE Issued on 19/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
XTREM JPFRA-38377
Centre de Calcul FFVoile
17 rue Henri Bocquillon
75015 Paris
France
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM20.140.781.432.383.0321.1622/11/2024
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentG30.090.460.881.642.413.159.33YesNo 15.1922/11/2024
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA312.8610.6611.766.706.50103%65.2722/11/2024A412.1410.4411.296.736.50104%62.8920/02/2022
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
ORC Ref  04330004QEE Issued on 19/05/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org