Non Spin/HSFClub Certificate2026
UroNOR 5887
Norges Seilforbund
Sognsveien 73
0854 OSLO
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 Angles46.5°44.1°41.9°40.5°39.5°39.0°38.7°38.6°39.4°
Beat VMG2.012.923.594.074.404.574.664.714.64
52°3.174.495.375.966.306.486.586.646.62
60°3.414.735.606.156.476.656.756.836.84
75°3.554.875.776.316.626.826.967.157.21
90°3.434.755.676.286.636.867.057.387.62
110°2.914.245.256.036.526.837.087.568.03
120°2.724.015.025.836.386.747.007.518.05
135°2.353.534.545.366.036.496.797.287.79
150°1.982.923.854.665.345.926.356.937.41
Run VMG1.722.603.474.274.985.626.156.817.29
Gybe Angles142.6°175.4°176.6°178.4°179.3°179.3°179.8°179.8°179.9°
APH ToD:663.9CDL: 7.488APH ToT: 0.9038CertNo:4879
BOAT
ClassMAMBA 341DesignerMAGNUSSONROLFBuilderMamba Boats ABAge date01/1983Series date01/1980Offset fileS-scan33.offData file4879
HULL
Length Overall10.160 mMaximum Beam3.264 mDraft1.740 mDisplacement4,820 kgDLR8.6910IMS DivisionCruiser/RacerDynamic Allowance0.450%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight520 kg(default)Minimum weight390 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail24.5024.91Headsail Luffed24.9024.90Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS Maximum (m²)
Trysail6.85Storm Jib9.12Heavy Weather Jib24.61
SAIL LIMITS
Headsails5
✱ Zero set flying
Spinnakers0
✱ No spinnaker pole aboard
STABILITY
Righting Moment 85.4 kg·m Stability Index 119.0
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  03440004W83 Issued on 10/08/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
UroNOR 5887
Norges Seilforbund
Sognsveien 73
0854 OSLO
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 VMG1787.31231.21002.4884.9818.8786.9773.2764.9775.3
52°1134.9802.4670.6604.5571.5555.3547.3541.9543.8
60°1056.1761.1642.6584.9556.7541.6533.1526.7526.4
75°1012.8739.4624.2570.3543.9528.0516.9503.4499.0
90°1048.9757.1634.7572.9542.9524.6510.5487.9472.3
110°1236.3849.0685.8597.4552.1527.0508.5476.2448.6
120°1325.0898.3716.6617.9563.8534.5514.2479.3447.4
135°1532.31019.9792.8671.1596.6554.7530.0494.6462.2
150°1814.61230.9933.9772.8674.6608.3566.6519.4486.0
Run VMG2095.31382.41037.3842.8722.4641.1585.8528.3493.5
Selected Courses
Windward / Leeward1941.31306.81019.8863.9770.6714.0679.5646.6634.4
All purpose1456.21001.0800.1693.9633.6598.3576.8552.0538.2
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward814.40.7368
All purpose663.90.9038
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance725.40.8271
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.71314.3962.3782.0677.6622.0584.2530.3513.4
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6707
Downwind "popa"0.7317
70% up, 30% down "Ilhabela"0.6879
30% up, 70% down "Ilhabela-inverso"0.7123
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Predominantly Upwind702.30.8543
Predominantly Downwind691.50.8676
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP689.60.8701 Predom. Rc High526.31.1401 5B SF Bay L/M924.00.6494 TriNum AP Low900.60.6662 Predom. Dn Low1161.50.5166 5B SF Bay Med765.20.7842 TriNum AP Med658.80.9107 Predom. Dn L/M809.60.7411 5B SF Bay M/H675.50.8883 TriNum AP High572.91.0473 Predom. Dn Med659.50.9097 5B SF Bay High643.10.9330 TriNum W/L Low1225.50.4896 Predom. Dn M/H572.01.0490 5B AP Low1028.20.5836 TriNum W/L Med808.30.7423 Predom. Dn High533.21.1252 5B AP L/M767.70.7816 TriNum W/L Hig675.80.8878 ChiMac Up Low920.50.6518 5B AP Med646.80.9276 Predom. Upwind736.00.8152 ChiMac Up Med816.60.7347 5B AP M/H581.01.0327 Predom. Reaching667.70.8986 ChiMac Up High697.60.8601 5B AP High553.91.0832 Predom. Downwind733.00.8185 ChiMac Off Low969.80.6187 5B W/L Low1393.70.4305 Predom. Up Low1067.90.5618 ChiMac Off Med834.10.7193 5B W/L L/M970.30.6184 Predom. Up L/M784.80.7646 ChiMac Off High677.40.8858 5B W/L Med789.80.7597 Predom. Up Med674.30.8899 ChiMac AP Low938.20.6395 5B W/L M/H687.50.8728 Predom. Up M/H619.10.9692 ChiMac AP Med820.40.7313 5B W/L High650.20.9228 Predom. Up High600.90.9985 ChiMac AP High684.40.8767 W/L 60-40 Low1377.50.4356 Predom. Rc Low985.80.6086 BayMac Cove Island1095.60.5476 W/L 60-40 L/M969.80.6187 Predom. Rc L/M718.50.8351 BayMac Shore1082.90.5541 W/L 60-40 Med799.10.7509 Predom. Rc Med611.40.9814 Harvest Moon584.31.0269 W/L 60-40 M/H705.60.8504 Predom. Rc M/H552.91.0852 5B SF Bay Low1153.20.5203 W/L 60-40 High673.80.8905      SA/DSPL Up17.23SA/DSPL Dn17.23
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance725.40.8271
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.71314.3962.3782.0677.6622.0584.2530.3513.4
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance725.40.8271
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.71314.3962.3782.0677.6622.0584.2530.3513.4
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance725.4
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.71314.3962.3782.0677.6622.0584.2530.3513.4
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating725.40.8271
FinRating, kevyt tuuli1381.70.7237
FinRating, kova tuuli558.90.8945
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8271
Triple Number Coastal/Long Distance Low0.6662
Triple Number Coastal/Long Distance Medium0.9108
Triple Number Coastal/Long Distance High1.0473
Triple Number Windward/Leeward Low0.5158
Triple Number Windward/Leeward Medium0.7423
Triple Number Windward/Leeward High0.8878
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.71314.3962.3782.0677.6622.0584.2530.3513.4
For information
General Purpose Handicap (GPH)754.7
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance725.40.8271
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Saronikos S All Purpose754.00.7958
Saronikos S Upwind828.70.7240
Saronikos S Downwind686.80.8736
Saronikos N All Purpose805.50.7449
Saronikos N Upwind869.00.6904
Saronikos N Downwind773.20.7760
Saronikos SW All Purpose773.40.7758
Saronikos SW Upwind859.50.6981
Saronikos SW Downwind710.00.8451
Saronikos NE All Purpose855.60.7013
Saronikos NE Upwind819.10.7325
Saronikos NE Downwind891.90.6727
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.71314.3962.3782.0677.6622.0584.2530.3513.4
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose689.60.8701
5-Band All Purpose Low1106.10.5424
5-Band All Purpose L/M792.90.7567
5-Band All Purpose Med664.50.9029
5-Band All Purpose M/H594.01.0100
5-Band All Purpose High565.51.0609
Single Number Predominant Upwind700.00.8571
Single Number Predominant Reaching635.80.9437
Single Number Predominant Downwind693.00.8659
5-Band 50-50 Windward/Leeward Low1393.70.4305
5-Band 50-50 Windward/Leeward L/M970.30.6184
5-Band 50-50 Windward/Leeward Med789.80.7597
5-Band 50-50 Windward/Leeward M/H687.50.8728
5-Band 50-50 Windward/Leeward High650.20.9228
5-Band 60-40 Windward/Leeward Low1377.50.4356
5-Band 60-40 Windward/Leeward L/M969.80.6187
5-Band 60-40 Windward/Leeward Med799.10.7509
5-Band 60-40 Windward/Leeward M/H705.60.8504
5-Band 60-40 Windward/Leeward High673.80.8905
Triple Number 50-50 Windward/Leeward Low1225.50.4896
Triple Number 50-50 Windward/Leeward Med808.50.7422
Triple Number 50-50 Windward/Leeward High675.80.8878
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward823.00.7291
Triple Number 60-40 Windward/Leeward Low1214.80.4939
Triple Number 60-40 Windward/Leeward Med816.40.7349
Triple Number 60-40 Windward/Leeward High695.40.8629
Triple Number All-Purpose Low980.50.6119
Triple Number All-Purpose Med677.40.8857
Triple Number All-Purpose High585.51.0248
Triple Number Predominant Upwind Low966.70.6207
Triple Number Predominant Upwind Med689.30.8705
Triple Number Predominant Upwind High616.80.9728
Triple Number Predominant Reaching Low882.40.6800
Triple Number Predominant Reaching Med631.30.9504
Triple Number Predominant Reaching High536.01.1195
Triple Number Predominant Downwind Low1018.20.5893
Triple Number Predominant Downwind Med677.90.8851
Triple Number Predominant Downwind High552.71.0856
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance725.40.8271
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.71314.3962.3782.0677.6622.0584.2530.3513.4
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance725.40.8271
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.71314.3962.3782.0677.6622.0584.2530.3513.4
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low900.6
Triple Number Coastal/Long Distance Medium658.8
Triple Number Coastal/Long Distance High572.9
Triple Number Windward/Leeward Low1163.2
Triple Number Windward/Leeward Medium808.3
Triple Number Windward/Leeward High675.8
Predominantly Upwind702.3
Predominantly Downwind691.5
Predominantly Reaching653.6
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance725.40.8271
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.71314.3962.3782.0677.6622.0584.2530.3513.4
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6662
Triple Number Coastal/Long Distance Medium0.9108
Triple Number Coastal/Long Distance High1.0473
Triple Number Windward/Leeward Low0.5158
Triple Number Windward/Leeward Medium0.7423
Triple Number Windward/Leeward High0.8878
Coastal/Long Distance0.8271
Predominantly Upwind0.8543
Predominantly Downwind0.8676
For information
General Purpose Handicap (GPH)754.7
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9038
Distanseseilas Trippeltall svak vind0.6662
Distanseseilas Trippeltall mellomvind0.9108
Distanseseilas Trippeltall sterk vind1.0473
Pølsebane Trippeltall svak vind0.5158
Pølsebane Trippeltall mellomvind0.7423
Pølsebane Trippeltall sterk vind0.8878
Motvind Singeltall0.8543
Medvind Singeltall0.8676
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Coastal/Long Distance725.40.8271
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind702.30.8543
Predominantly Downwind691.50.8676
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore638.10.9403
Cape Doctor Coastal542.41.1063
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6662
Triple Number Coastal/Long Distance Medium0.9108
Triple Number Coastal/Long Distance High1.0473
Triple Number Windward/Leeward Low0.5158
Triple Number Windward/Leeward Medium0.7423
Triple Number Windward/Leeward High0.8878
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6662
Triple Number Coastal/Long Distance Medium0.9108
Triple Number Coastal/Long Distance High1.0473
Triple Number Windward/Leeward Low0.5158
Triple Number Windward/Leeward Medium0.7423
Triple Number Windward/Leeward High0.8878
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance725.40.8271
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Predominantly Upwind702.30.8543
Predominantly Downwind691.50.8676
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.71314.3962.3782.0677.6622.0584.2530.3513.4
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance725.40.8271
Triple Number Coastal/Long Distance Low900.60.6662
Triple Number Coastal/Long Distance Medium658.80.9108
Triple Number Coastal/Long Distance High572.91.0473
Triple Number Windward/Leeward Low1163.20.5158
Triple Number Windward/Leeward Medium808.30.7423
Triple Number Windward/Leeward High675.80.8878
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.71314.3962.3782.0677.6622.0584.2530.3513.4
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP689.60.8701 Predom. Dn High533.21.1252 5B AP M/H581.01.0327 TriNum AP Low900.60.6662 Predom. Rc Low985.80.6086 5B AP High553.91.0832 TriNum AP Med658.80.9107 Predom. Rc L/M718.50.8351 5B SF Bay Low1153.20.5203 TriNum AP High572.91.0473 Predom. Rc Med611.40.9814 5B SF Bay L/M924.00.6494 TriNum W/L Low1225.50.4896 Predom. Rc M/H552.91.0852 5B SF Bay Med765.20.7842 TriNum W/L Med808.30.7423 Predom. Rc High526.31.1401 5B SF Bay M/H675.50.8883 TriNum W/L Hig675.80.8878 5B W/L Low1393.70.4305 5B SF Bay High643.10.9330 Predom. Upwind736.00.8152 5B W/L L/M970.30.6184 ChiMac Up Low920.50.6518 Predom. Reaching667.70.8986 5B W/L Med789.80.7597 ChiMac Up Med816.60.7347 Predom. Downwind733.00.8185 5B W/L M/H687.50.8728 ChiMac Up High697.60.8601 Predom. Up Low1067.90.5618 5B W/L High650.20.9228 ChiMac Off Low969.80.6187 Predom. Up L/M784.80.7646 W/L 60-40 Low1377.50.4356 ChiMac Off Med834.10.7193 Predom. Up Med674.30.8899 W/L 60-40 L/M969.80.6187 ChiMac Off High677.40.8858 Predom. Up M/H619.10.9692 W/L 60-40 Med799.10.7509 ChiMac AP Low938.20.6395 Predom. Up High600.90.9985 W/L 60-40 M/H705.60.8504 ChiMac AP Med820.40.7313 Predom. Dn Low1161.50.5166 W/L 60-40 High673.80.8905 ChiMac AP High684.40.8767 Predom. Dn L/M809.60.7411 5B AP Low1028.20.5836 BayMac Cove Island1095.60.5476 Predom. Dn Med659.50.9097 5B AP L/M767.70.7816 BayMac Shore1082.90.5541 Predom. Dn M/H572.01.0490 5B AP Med646.80.9276 Harvest Moon584.31.0269      SA/DSPL Up17.23SA/DSPL Dn17.23
ORC Ref  03440004W83 Issued on 10/08/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
UroNOR 5887
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMAMBA 341MeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall10.160Maximum beam3.264Draft1.740Displacement4,820Wetted area22.46IMS L8.324LSM08.215Accomod. length10.029Sink (kg/mm) 15.49
VCGD-0.074VCGM0.001 RM Rated (kg·m) 85.4Limit of positive stability(°) 117.7 Stability Index 119.0 BLR index 0.0000Default crew weight520 Declared crew weight 0
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0076
EDL0.400ST10.048ST20.170
ST30.170ST40.170ST51.800
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders0Rotating mastNo
P11.850IG13.500ISP13.500MDT10.120MDL10.180MDT20.000MDL20.000TL0.000MW0.000GO0.000
E3.300J4.200BAS1.572FSDFoilSFJ0.000SPL0.000WPLTPS4.200BD0.000MWT0.00MCG0.000
PY0.000MDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.074Flotation Date01/01/2015
SFFP1.045FFM1.238FF1.238LCFcl5.866SG0.0000
SAFP9.593FAM0.930FA0.930LCFsh6.086HBI1.086
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440004W83 Issued on 10/08/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
UroNOR 5887
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment330-2019050915120.230.871.452.242.8024.5009/05/2019
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment626-2021012215400.040.460.891.852.904.0012.95NoNo 24.9022/01/2021
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length10.0 mTable area0.44 m²Headroom1.70 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity80 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity50 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  03440004W83 Issued on 10/08/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org