Non Spin/HSFClub Certificate2026
VortexRSA-1147
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
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 Angles46.8°44.1°42.0°40.3°38.6°37.8°37.6°37.9°38.9°
Beat VMG2.203.183.904.444.825.005.075.095.00
52°3.474.885.846.466.837.017.097.157.14
60°3.745.166.106.656.997.197.297.387.39
75°3.935.326.276.807.137.387.577.767.85
90°3.795.206.186.787.137.447.728.098.32
110°3.284.735.826.617.087.447.788.489.23
120°3.074.485.586.416.947.317.668.409.33
135°2.633.935.025.916.597.047.398.068.87
150°2.213.344.355.155.886.476.897.498.09
Run VMG1.912.893.774.505.265.936.497.237.83
Gybe Angles143.8°144.8°145.8°169.4°170.8°171.7°173.7°175.9°175.6°
APH ToD:609.9CDL: 8.641APH ToT: 0.9837CertNo:ZAN310
BOAT
ClassLavranos 34DesignerAngelo LavranosBuilderRobertson & CaineAge date12/1987Series date01/1986Offset fileSA92031cor.offData fileRSA1147
HULL
Length Overall10.530 mMaximum Beam3.326 mDraft1.937 mDisplacement4,327 kgDLR5.6588IMS DivisionCruiser/RacerDynamic Allowance0.320%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationShaft exposedTypeFeathering 2 bladesDiameter0.360m
CREW
Maximum weight650 kg(declared)Minimum weight520 kg ✱ when appliedCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail30.2330.73Headsail Luffed29.1629.16Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS Maximum (m²)
Trysail9.06Storm Jib6.77Heavy Weather Jib18.27
SAIL LIMITS
Headsails5
✱ Zero set flying
Spinnakers0
✱ Spinnaker pole aboard
STABILITY
Righting Moment 101.0 kg·m Stability Index 116.3
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  04620004QVN Issued on 23/05/2026 Valid until 31/01/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
VortexRSA-1147
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
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 VMG1636.01133.1922.3810.0746.2720.1710.1707.7719.6
52°1036.8737.4616.5557.5527.4513.4507.8503.7504.5
60°962.4698.2590.4541.1515.4500.9493.7488.1487.0
75°917.1676.1574.4529.3505.1487.8475.3463.9458.5
90°948.8691.8582.9531.0504.7484.0466.2445.2432.8
110°1096.9761.4618.5545.0508.4484.0462.7424.3389.8
120°1173.4803.5645.4561.6518.5492.2469.9428.6385.7
135°1370.2916.0716.7609.0546.1511.2487.4446.6405.7
150°1629.11077.5828.0699.4612.7556.5522.3480.4445.2
Run VMG1881.21244.2956.1800.4685.0607.0554.3497.6459.7
Selected Courses
Windward / Leeward1758.61188.6939.2805.2715.6663.6632.2602.7589.7
All purpose1315.3906.2729.8638.4583.6551.7531.5507.6491.6
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward755.10.7946
All purpose609.90.9837
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance667.60.8988
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1770.81194.2883.7723.6624.1573.7538.5486.8467.2
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7305
Downwind "popa"0.7858
70% up, 30% down "Ilhabela"0.7463
30% up, 70% down "Ilhabela-inverso"0.7684
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Predominantly Upwind646.10.9286
Predominantly Downwind638.90.9391
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP635.40.9443 Predom. Rc High482.51.2436 5B SF Bay L/M848.30.7073 TriNum AP Low818.00.7335 Predom. Dn Low1051.00.5709 5B SF Bay Med705.70.8502 TriNum AP Med606.20.9898 Predom. Dn L/M743.80.8067 5B SF Bay M/H624.90.9602 TriNum AP High527.61.1373 Predom. Dn Med611.80.9807 5B SF Bay High595.51.0076 TriNum W/L Low1120.00.5357 Predom. Dn M/H530.71.1307 5B AP Low929.50.6455 TriNum W/L Med751.10.7988 Predom. Dn High491.41.2209 5B AP L/M702.00.8547 TriNum W/L Hig628.90.9540 ChiMac Up Low843.00.7117 5B AP Med595.31.0080 Predom. Upwind676.60.8867 ChiMac Up Med749.40.8006 5B AP M/H535.21.1210 Predom. Reaching612.90.9790 ChiMac Up High642.20.9343 5B AP High508.91.1789 Predom. Downwind674.70.8892 ChiMac Off Low884.70.6782 5B W/L Low1268.80.4729 Predom. Up Low975.50.6151 ChiMac Off Med765.50.7838 5B W/L L/M895.70.6699 Predom. Up L/M721.00.8322 ChiMac Off High625.70.9590 5B W/L Med733.60.8179 Predom. Up Med620.90.9663 ChiMac AP Low857.80.6995 5B W/L M/H639.50.9382 Predom. Up M/H571.21.0503 ChiMac AP Med753.10.7967 5B W/L High605.50.9909 Predom. Up High555.01.0811 ChiMac AP High631.20.9506 W/L 60-40 Low1256.20.4776 Predom. Rc Low895.00.6704 BayMac Cove Island998.80.6007 W/L 60-40 L/M894.10.6711 Predom. Rc L/M658.90.9107 BayMac Shore987.60.6075 W/L 60-40 Med739.70.8111 Predom. Rc Med564.01.0638 Harvest Moon537.41.1165 W/L 60-40 M/H654.50.9167 Predom. Rc M/H509.31.1781 5B SF Bay Low1050.80.5710 W/L 60-40 High626.40.9578      SA/DSPL Up22.26SA/DSPL Dn22.26
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance667.60.8988
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1770.81194.2883.7723.6624.1573.7538.5486.8467.2
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance667.60.8988
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1770.81194.2883.7723.6624.1573.7538.5486.8467.2
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance667.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1770.81194.2883.7723.6624.1573.7538.5486.8467.2
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating667.60.8988
FinRating, kevyt tuuli1254.80.7969
FinRating, kova tuuli513.20.9743
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8988
Triple Number Coastal/Long Distance Low0.7335
Triple Number Coastal/Long Distance Medium0.9900
Triple Number Coastal/Long Distance High1.1373
Triple Number Windward/Leeward Low0.5639
Triple Number Windward/Leeward Medium0.7988
Triple Number Windward/Leeward High0.9540
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1770.81194.2883.7723.6624.1573.7538.5486.8467.2
For information
General Purpose Handicap (GPH)691.7
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance667.60.8988
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Saronikos S All Purpose693.50.8652
Saronikos S Upwind760.70.7888
Saronikos S Downwind629.50.9532
Saronikos N All Purpose737.20.8139
Saronikos N Upwind798.30.7516
Saronikos N Downwind701.20.8556
Saronikos SW All Purpose708.20.8473
Saronikos SW Upwind789.10.7603
Saronikos SW Downwind644.20.9313
Saronikos NE All Purpose778.80.7704
Saronikos NE Upwind751.40.7985
Saronikos NE Downwind802.40.7477
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1770.81194.2883.7723.6624.1573.7538.5486.8467.2
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose635.40.9443
5-Band All Purpose Low1005.60.5966
5-Band All Purpose L/M728.80.8233
5-Band All Purpose Med614.40.9766
5-Band All Purpose M/H549.41.0921
5-Band All Purpose High521.81.1499
Single Number Predominant Upwind644.10.9315
Single Number Predominant Reaching585.01.0257
Single Number Predominant Downwind640.00.9374
5-Band 50-50 Windward/Leeward Low1268.80.4729
5-Band 50-50 Windward/Leeward L/M895.70.6699
5-Band 50-50 Windward/Leeward Med733.60.8179
5-Band 50-50 Windward/Leeward M/H639.50.9382
5-Band 50-50 Windward/Leeward High605.50.9909
5-Band 60-40 Windward/Leeward Low1256.20.4776
5-Band 60-40 Windward/Leeward L/M894.10.6711
5-Band 60-40 Windward/Leeward Med739.70.8111
5-Band 60-40 Windward/Leeward M/H654.50.9167
5-Band 60-40 Windward/Leeward High626.40.9578
Triple Number 50-50 Windward/Leeward Low1120.00.5357
Triple Number 50-50 Windward/Leeward Med751.20.7987
Triple Number 50-50 Windward/Leeward High629.00.9540
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward761.10.7883
Triple Number 60-40 Windward/Leeward Low1111.40.5398
Triple Number 60-40 Windward/Leeward Med756.10.7935
Triple Number 60-40 Windward/Leeward High645.50.9295
Triple Number All-Purpose Low894.30.6709
Triple Number All-Purpose Med626.30.9580
Triple Number All-Purpose High541.31.1085
Triple Number Predominant Upwind Low884.10.6787
Triple Number Predominant Upwind Med634.60.9454
Triple Number Predominant Upwind High569.11.0542
Triple Number Predominant Reaching Low803.80.7464
Triple Number Predominant Reaching Med582.31.0303
Triple Number Predominant Reaching High492.91.2174
Triple Number Predominant Downwind Low925.10.6486
Triple Number Predominant Downwind Med629.60.9530
Triple Number Predominant Downwind High512.51.1707
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance667.60.8988
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1770.81194.2883.7723.6624.1573.7538.5486.8467.2
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance667.60.8988
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1770.81194.2883.7723.6624.1573.7538.5486.8467.2
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low818.0
Triple Number Coastal/Long Distance Medium606.1
Triple Number Coastal/Long Distance High527.6
Triple Number Windward/Leeward Low1064.0
Triple Number Windward/Leeward Medium751.1
Triple Number Windward/Leeward High628.9
Predominantly Upwind646.1
Predominantly Downwind638.9
Predominantly Reaching601.8
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance667.60.8988
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1770.81194.2883.7723.6624.1573.7538.5486.8467.2
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7335
Triple Number Coastal/Long Distance Medium0.9900
Triple Number Coastal/Long Distance High1.1373
Triple Number Windward/Leeward Low0.5639
Triple Number Windward/Leeward Medium0.7988
Triple Number Windward/Leeward High0.9540
Coastal/Long Distance0.8988
Predominantly Upwind0.9286
Predominantly Downwind0.9391
For information
General Purpose Handicap (GPH)691.7
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9837
Distanseseilas Trippeltall svak vind0.7335
Distanseseilas Trippeltall mellomvind0.9900
Distanseseilas Trippeltall sterk vind1.1373
Pølsebane Trippeltall svak vind0.5639
Pølsebane Trippeltall mellomvind0.7988
Pølsebane Trippeltall sterk vind0.9540
Motvind Singeltall0.9286
Medvind Singeltall0.9391
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Coastal/Long Distance667.60.8988
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind646.10.9286
Predominantly Downwind638.90.9391
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore593.61.0109
Cape Doctor Coastal496.41.2087
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7335
Triple Number Coastal/Long Distance Medium0.9900
Triple Number Coastal/Long Distance High1.1373
Triple Number Windward/Leeward Low0.5639
Triple Number Windward/Leeward Medium0.7988
Triple Number Windward/Leeward High0.9540
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7335
Triple Number Coastal/Long Distance Medium0.9900
Triple Number Coastal/Long Distance High1.1373
Triple Number Windward/Leeward Low0.5639
Triple Number Windward/Leeward Medium0.7988
Triple Number Windward/Leeward High0.9540
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance667.60.8988
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Predominantly Upwind646.10.9286
Predominantly Downwind638.90.9391
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1770.81194.2883.7723.6624.1573.7538.5486.8467.2
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance667.60.8988
Triple Number Coastal/Long Distance Low818.00.7335
Triple Number Coastal/Long Distance Medium606.10.9900
Triple Number Coastal/Long Distance High527.61.1373
Triple Number Windward/Leeward Low1064.00.5639
Triple Number Windward/Leeward Medium751.10.7988
Triple Number Windward/Leeward High628.90.9540
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1770.81194.2883.7723.6624.1573.7538.5486.8467.2
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP635.40.9443 Predom. Dn High491.41.2209 5B AP M/H535.21.1210 TriNum AP Low818.00.7335 Predom. Rc Low895.00.6704 5B AP High508.91.1789 TriNum AP Med606.20.9898 Predom. Rc L/M658.90.9107 5B SF Bay Low1050.80.5710 TriNum AP High527.61.1373 Predom. Rc Med564.01.0638 5B SF Bay L/M848.30.7073 TriNum W/L Low1120.00.5357 Predom. Rc M/H509.31.1781 5B SF Bay Med705.70.8502 TriNum W/L Med751.10.7988 Predom. Rc High482.51.2436 5B SF Bay M/H624.90.9602 TriNum W/L Hig628.90.9540 5B W/L Low1268.80.4729 5B SF Bay High595.51.0076 Predom. Upwind676.60.8867 5B W/L L/M895.70.6699 ChiMac Up Low843.00.7117 Predom. Reaching612.90.9790 5B W/L Med733.60.8179 ChiMac Up Med749.40.8006 Predom. Downwind674.70.8892 5B W/L M/H639.50.9382 ChiMac Up High642.20.9343 Predom. Up Low975.50.6151 5B W/L High605.50.9909 ChiMac Off Low884.70.6782 Predom. Up L/M721.00.8322 W/L 60-40 Low1256.20.4776 ChiMac Off Med765.50.7838 Predom. Up Med620.90.9663 W/L 60-40 L/M894.10.6711 ChiMac Off High625.70.9590 Predom. Up M/H571.21.0503 W/L 60-40 Med739.70.8111 ChiMac AP Low857.80.6995 Predom. Up High555.01.0811 W/L 60-40 M/H654.50.9167 ChiMac AP Med753.10.7967 Predom. Dn Low1051.00.5709 W/L 60-40 High626.40.9578 ChiMac AP High631.20.9506 Predom. Dn L/M743.80.8067 5B AP Low929.50.6455 BayMac Cove Island998.80.6007 Predom. Dn Med611.80.9807 5B AP L/M702.00.8547 BayMac Shore987.60.6075 Predom. Dn M/H530.71.1307 5B AP Med595.31.0080 Harvest Moon537.41.1165      SA/DSPL Up22.26SA/DSPL Dn22.26
ORC Ref  04620004QVN Issued on 23/05/2026 Valid until 31/01/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
VortexRSA-1147
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassLavranos 34Measurement21/05/2026HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall10.530Maximum beam3.326Draft1.937Displacement4,327Wetted area22.78IMS L9.273LSM09.144Accomod. length10.383Sink (kg/mm) 17.18
VCGD-0.039VCGM0.013 RM Rated (kg·m) 101.0Limit of positive stability(°) 117.1 Stability Index 116.3 BLR index 0.0000Default crew weight606 Declared crew weight 650
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFeathering 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.360PBW0.130PIPA0.0050
PSD0.025PHD0.070PHL0.130
PSA19.0°ESL0.910
ST10.020ST20.095ST30.100
ST40.060ST50.180
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders1Rotating mastNo
P12.410IG11.535ISP11.565MDT10.115MDL10.175MDT20.092MDL20.152TL2.310MW0.175GO0.205
E4.170J3.560BAS1.465FSDFoilSFJ0.020SPL3.800WPL2.100TPSBD0.140MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date11/10/2017
SFFP0.920FFM1.212FF1.244LCFcl5.946SG1.0260
SAFP9.931FAM0.983FA0.965LCFsh6.175HBI1.155
INVENTORY
Fixed Ballast Total0
Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGSaSDeductibleSailor Services690.000.00Total deductible690.000.00
ORC Ref  04620004QVN Issued on 23/05/2026 Valid until 31/01/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
VortexRSA-1147
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM-10.180.851.532.613.4330.2320/05/2026
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ1-10.070.651.272.543.885.2711.25NoNo 29.1618/05/2026Pentex
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length10.4 mTable area0.44 m²Headroom1.73 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity88 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity58 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04620004QVN Issued on 23/05/2026 Valid until 31/01/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org