Double HandedClub Certificate2026
NeutronRSA-550
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 Angles47.4°45.0°42.9°41.9°41.3°40.6°40.1°40.5°42.6°
Beat VMG1.792.633.253.704.044.264.354.344.13
52°2.844.074.925.535.946.176.276.316.18
60°3.084.335.175.776.136.346.456.546.47
75°3.244.515.365.956.296.516.666.856.88
90°3.144.495.476.116.426.556.737.047.27
110°3.264.655.656.276.626.887.107.397.54
120°3.124.485.536.216.596.897.207.768.04
135°2.754.035.105.946.436.767.077.798.42
150°2.333.494.505.386.076.496.797.438.12
Run VMG2.023.023.904.685.375.906.306.887.47
Gybe Angles145.3°147.8°151.2°153.2°159.5°165.7°173.2°177.7°175.4°
APH ToD:668.4CDL: 6.821APH ToT: 0.8977CertNo:ZAD307
BOAT
ClassAstove 30DesignerLavranosBuilderAge date01/1993Series date01/1976Offset fileAstove 30_DV.offData fileRSA550
HULL
Length Overall9.190 mMaximum Beam3.012 mDraft1.660 mDisplacement4,219 kgDLR7.8271IMS DivisionCruiser/RacerDynamic Allowance0.520%Age Allowance0.650%RS Assessment-0.025%
PROPELLER
InstallationShaft exposedTypeSolid 3 bladesDiameter0.350m
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail17.5017.86Headsail Luffed26.4726.47Headsail FlyingSymmetric62.7862.78Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail5.31Storm Jib6.69Heavy Weather Jib18.06
SAIL LIMITS
Headsails5
✱ One set on the forestay
✱ Woven polyester sails
Spinnakers4
STABILITY
Righting Moment 75.7 kg·m Stability Index 122.0
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  04620004MBU Issued on 22/04/2026 Valid until 31/01/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
NeutronRSA-550
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 VMG2016.31370.41108.1973.5891.6845.0827.8829.9871.1
52°1269.7883.6732.0651.2605.9583.9574.3570.8582.5
60°1168.6831.3696.4624.4586.9567.7558.0550.8556.1
75°1110.6798.9671.1604.7572.0552.6540.2525.3523.5
90°1147.2802.3658.2588.9560.5549.6534.5511.0494.9
110°1105.2774.4637.1574.4543.9523.1506.7486.9477.2
120°1154.0802.8651.5579.9546.1522.3500.3463.8448.0
135°1309.4892.4706.2605.9560.1532.8509.3462.3427.4
150°1547.01032.2799.1668.8593.2555.1530.1484.5443.1
Run VMG1786.31191.8921.9770.0671.0610.5571.5523.2481.7
Selected Courses
Windward / Leeward1901.31281.11015.0871.7781.3727.7699.6676.5676.4
All purpose1440.4987.3795.7695.5639.1607.2588.2566.9561.9
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward823.60.7285
All purpose668.40.8977
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance728.10.8240
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1889.81272.2952.3783.9683.1630.3594.1539.6529.6
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6135
Downwind "popa"0.7985
70% up, 30% down "Ilhabela"0.6593
30% up, 70% down "Ilhabela-inverso"0.7322
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Predominantly Upwind733.10.8185
Predominantly Downwind669.70.8959
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP697.30.8605 Predom. Rc High536.81.1177 5B SF Bay L/M927.60.6468 TriNum AP Low891.50.6730 Predom. Dn Low1079.20.5560 5B SF Bay Med775.80.7734 TriNum AP Med663.10.9049 Predom. Dn L/M768.10.7812 5B SF Bay M/H693.30.8654 TriNum AP High585.01.0257 Predom. Dn Med641.10.9359 5B SF Bay High669.20.8965 TriNum W/L Low1209.10.4962 Predom. Dn M/H569.11.0543 5B AP Low998.90.6007 TriNum W/L Med817.60.7339 Predom. Dn High532.61.1267 5B AP L/M765.50.7838 TriNum W/L Hig698.00.8596 ChiMac Up Low967.60.6201 5B AP Med652.00.9203 Predom. Upwind771.40.7778 ChiMac Up Med857.30.6999 5B AP M/H592.11.0134 Predom. Reaching670.90.8944 ChiMac Up High731.40.8204 5B AP High569.71.0531 Predom. Downwind705.70.8502 ChiMac Off Low911.30.6584 5B W/L Low1369.60.4381 Predom. Up Low1123.80.5339 ChiMac Off Med793.60.7560 5B W/L L/M969.20.6191 Predom. Up L/M822.20.7297 ChiMac Off High656.70.9136 5B W/L Med800.10.7499 Predom. Up Med704.70.8515 ChiMac AP Low935.10.6417 5B W/L M/H707.30.8483 Predom. Up M/H646.80.9277 ChiMac AP Med822.40.7296 5B W/L High680.50.8817 Predom. Up High632.60.9485 ChiMac AP High692.10.8669 W/L 60-40 Low1389.00.4320 Predom. Rc Low978.70.6131 BayMac Cove Island1086.00.5525 W/L 60-40 L/M988.80.6068 Predom. Rc L/M715.30.8389 BayMac Shore1078.60.5563 W/L 60-40 Med822.10.7299 Predom. Rc Med615.40.9749 Harvest Moon581.21.0324 W/L 60-40 M/H733.10.8184 Predom. Rc M/H563.31.0651 5B SF Bay Low1149.70.5219 W/L 60-40 High711.70.8430      SA/DSPL Up16.76SA/DSPL Dn30.60
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance728.10.8240
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1889.81272.2952.3783.9683.1630.3594.1539.6529.6
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance728.10.8240
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1889.81272.2952.3783.9683.1630.3594.1539.6529.6
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance728.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1889.81272.2952.3783.9683.1630.3594.1539.6529.6
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating728.10.8240
FinRating, kevyt tuuli1351.90.7397
FinRating, kova tuuli573.90.8712
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8240
Triple Number Coastal/Long Distance Low0.6730
Triple Number Coastal/Long Distance Medium0.9050
Triple Number Coastal/Long Distance High1.0257
Triple Number Windward/Leeward Low0.5226
Triple Number Windward/Leeward Medium0.7339
Triple Number Windward/Leeward High0.8596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1889.81272.2952.3783.9683.1630.3594.1539.6529.6
For information
General Purpose Handicap (GPH)756.9
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance728.10.8240
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Saronikos S All Purpose783.40.7659
Saronikos S Upwind903.30.6642
Saronikos S Downwind638.40.9399
Saronikos N All Purpose823.10.7290
Saronikos N Upwind948.80.6323
Saronikos N Downwind701.80.8549
Saronikos SW All Purpose797.30.7526
Saronikos SW Upwind937.90.6398
Saronikos SW Downwind653.80.9177
Saronikos NE All Purpose858.70.6987
Saronikos NE Upwind889.60.6745
Saronikos NE Downwind802.20.7479
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1889.81272.2952.3783.9683.1630.3594.1539.6529.6
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose697.30.8605
5-Band All Purpose Low1096.80.5470
5-Band All Purpose L/M792.60.7570
5-Band All Purpose Med671.60.8933
5-Band All Purpose M/H607.50.9876
5-Band All Purpose High582.21.0305
Single Number Predominant Upwind732.10.8195
Single Number Predominant Reaching638.70.9395
Single Number Predominant Downwind669.90.8956
5-Band 50-50 Windward/Leeward Low1369.60.4381
5-Band 50-50 Windward/Leeward L/M969.20.6191
5-Band 50-50 Windward/Leeward Med800.10.7499
5-Band 50-50 Windward/Leeward M/H707.30.8483
5-Band 50-50 Windward/Leeward High680.50.8817
5-Band 60-40 Windward/Leeward Low1389.00.4320
5-Band 60-40 Windward/Leeward L/M988.80.6068
5-Band 60-40 Windward/Leeward Med822.10.7299
5-Band 60-40 Windward/Leeward M/H733.10.8184
5-Band 60-40 Windward/Leeward High711.70.8430
Triple Number 50-50 Windward/Leeward Low1209.10.4962
Triple Number 50-50 Windward/Leeward Med817.60.7338
Triple Number 50-50 Windward/Leeward High698.00.8596
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward845.80.7093
Triple Number 60-40 Windward/Leeward Low1228.00.4886
Triple Number 60-40 Windward/Leeward Med839.20.7150
Triple Number 60-40 Windward/Leeward High725.00.8276
Triple Number All-Purpose Low973.90.6161
Triple Number All-Purpose Med683.50.8778
Triple Number All-Purpose High599.71.0005
Triple Number Predominant Upwind Low1009.70.5942
Triple Number Predominant Upwind Med720.20.8331
Triple Number Predominant Upwind High648.50.9252
Triple Number Predominant Reaching Low877.60.6837
Triple Number Predominant Reaching Med636.10.9433
Triple Number Predominant Reaching High545.91.0992
Triple Number Predominant Downwind Low954.60.6285
Triple Number Predominant Downwind Med652.40.9197
Triple Number Predominant Downwind High546.51.0979
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance728.10.8240
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1889.81272.2952.3783.9683.1630.3594.1539.6529.6
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance728.10.8240
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1889.81272.2952.3783.9683.1630.3594.1539.6529.6
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low891.5
Triple Number Coastal/Long Distance Medium663.0
Triple Number Coastal/Long Distance High585.0
Triple Number Windward/Leeward Low1148.1
Triple Number Windward/Leeward Medium817.6
Triple Number Windward/Leeward High698.0
Predominantly Upwind733.1
Predominantly Downwind669.7
Predominantly Reaching646.7
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance728.10.8240
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1889.81272.2952.3783.9683.1630.3594.1539.6529.6
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6730
Triple Number Coastal/Long Distance Medium0.9050
Triple Number Coastal/Long Distance High1.0257
Triple Number Windward/Leeward Low0.5226
Triple Number Windward/Leeward Medium0.7339
Triple Number Windward/Leeward High0.8596
Coastal/Long Distance0.8240
Predominantly Upwind0.8185
Predominantly Downwind0.8959
For information
General Purpose Handicap (GPH)756.9
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.8977
Distanseseilas Trippeltall svak vind0.6730
Distanseseilas Trippeltall mellomvind0.9050
Distanseseilas Trippeltall sterk vind1.0257
Pølsebane Trippeltall svak vind0.5226
Pølsebane Trippeltall mellomvind0.7339
Pølsebane Trippeltall sterk vind0.8596
Motvind Singeltall0.8185
Medvind Singeltall0.8959
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Coastal/Long Distance728.10.8240
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind733.10.8185
Predominantly Downwind669.70.8959
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore676.50.8870
Cape Doctor Coastal563.41.0650
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6730
Triple Number Coastal/Long Distance Medium0.9050
Triple Number Coastal/Long Distance High1.0257
Triple Number Windward/Leeward Low0.5226
Triple Number Windward/Leeward Medium0.7339
Triple Number Windward/Leeward High0.8596
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6730
Triple Number Coastal/Long Distance Medium0.9050
Triple Number Coastal/Long Distance High1.0257
Triple Number Windward/Leeward Low0.5226
Triple Number Windward/Leeward Medium0.7339
Triple Number Windward/Leeward High0.8596
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance728.10.8240
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Predominantly Upwind733.10.8185
Predominantly Downwind669.70.8959
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1889.81272.2952.3783.9683.1630.3594.1539.6529.6
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance728.10.8240
Triple Number Coastal/Long Distance Low891.50.6730
Triple Number Coastal/Long Distance Medium663.00.9050
Triple Number Coastal/Long Distance High585.01.0257
Triple Number Windward/Leeward Low1148.10.5226
Triple Number Windward/Leeward Medium817.60.7339
Triple Number Windward/Leeward High698.00.8596
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1889.81272.2952.3783.9683.1630.3594.1539.6529.6
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP697.30.8605 Predom. Dn High532.61.1267 5B AP M/H592.11.0134 TriNum AP Low891.50.6730 Predom. Rc Low978.70.6131 5B AP High569.71.0531 TriNum AP Med663.10.9049 Predom. Rc L/M715.30.8389 5B SF Bay Low1149.70.5219 TriNum AP High585.01.0257 Predom. Rc Med615.40.9749 5B SF Bay L/M927.60.6468 TriNum W/L Low1209.10.4962 Predom. Rc M/H563.31.0651 5B SF Bay Med775.80.7734 TriNum W/L Med817.60.7339 Predom. Rc High536.81.1177 5B SF Bay M/H693.30.8654 TriNum W/L Hig698.00.8596 5B W/L Low1369.60.4381 5B SF Bay High669.20.8965 Predom. Upwind771.40.7778 5B W/L L/M969.20.6191 ChiMac Up Low967.60.6201 Predom. Reaching670.90.8944 5B W/L Med800.10.7499 ChiMac Up Med857.30.6999 Predom. Downwind705.70.8502 5B W/L M/H707.30.8483 ChiMac Up High731.40.8204 Predom. Up Low1123.80.5339 5B W/L High680.50.8817 ChiMac Off Low911.30.6584 Predom. Up L/M822.20.7297 W/L 60-40 Low1389.00.4320 ChiMac Off Med793.60.7560 Predom. Up Med704.70.8515 W/L 60-40 L/M988.80.6068 ChiMac Off High656.70.9136 Predom. Up M/H646.80.9277 W/L 60-40 Med822.10.7299 ChiMac AP Low935.10.6417 Predom. Up High632.60.9485 W/L 60-40 M/H733.10.8184 ChiMac AP Med822.40.7296 Predom. Dn Low1079.20.5560 W/L 60-40 High711.70.8430 ChiMac AP High692.10.8669 Predom. Dn L/M768.10.7812 5B AP Low998.90.6007 BayMac Cove Island1086.00.5525 Predom. Dn Med641.10.9359 5B AP L/M765.50.7838 BayMac Shore1078.60.5563 Predom. Dn M/H569.11.0543 5B AP Med652.00.9203 Harvest Moon581.21.0324      SA/DSPL Up16.76SA/DSPL Dn30.60
ORC Ref  04620004MBU Issued on 22/04/2026 Valid until 31/01/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
NeutronRSA-550
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassAstove 30Measurement10/04/2026HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9.190Maximum beam3.012Draft1.660Displacement4,219Wetted area19.57IMS L8.031LSM08.138Accomod. length9.190Sink (kg/mm) 14.15
VCGD0.054VCGM0.012 RM Rated (kg·m) 75.7Limit of positive stability(°) 119.7 Stability Index 122.0 BLR index 0.0000Default crew weight170 Declared crew weight 340
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeSolid 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.350PBW0.090PIPA0.0160
PSD0.025PHD0.040PHL0.035
PSA17.0°ESL0.625
ST10.025ST20.080ST30.080
ST40.050ST50.130
RIG
BackstayFixedForestayFixedInner forestayFixedMast materialAluminumSingle headsail furlerYesMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders1Rotating mastNo
P9.624IG11.406ISP11.336MDT10.105MDL10.200MDT2MDL2TLNo TaperMW0.200GO0.250
E3.150J3.620BAS1.326FSDFoilSFJ0.000SPL3.740WPLTPSBD0.115MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date21/04/2026
SFFP1.021FFM1.101FF1.101LCFcl5.174SG
SAFP9.185FAM0.931FA0.931LCFsh5.391HBI0.957
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04620004MBU Issued on 22/04/2026 Valid until 31/01/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
NeutronRSA-550
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM-10.120.591.071.932.6417.5016/03/2026
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJRF-20.080.661.312.493.714.9410.60NoNo 26.4710/04/2026RF
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS2-`111.4511.4511.456.606.5062.7816/03/2026RED/WH/BLUE
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length9.2 mTable area0.44 m²Headroom1.64 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity64 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity34 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04620004MBU Issued on 22/04/2026 Valid until 31/01/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org