TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST
Double HandedClub Certificate2026
MambaRUS 9209
Novokolomiazhskii av 11-70
197375 St-Petersburg, Russia
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 Angles47,1°44,1°41,9°41,2°41,4°41,9°42,1°42,9°44,7°
Beat VMG1,892,723,303,683,914,044,094,083,93
52°2,994,184,945,475,805,986,086,116,03
60°3,244,425,185,716,036,216,316,386,35
75°3,404,595,385,926,236,436,566,716,75
90°3,484,795,696,216,456,586,686,947,13
110°3,604,965,906,416,716,957,147,397,56
120°3,494,835,806,366,696,987,257,687,90
135°3,074,385,386,106,526,837,137,738,20
150°2,553,754,715,516,096,456,727,237,77
Run VMG2,213,244,084,775,285,696,026,516,94
Gybe Angles141,1°145,7°148,0°148,5°152,1°157,4°161,9°178,4°178,4°
APH ToD:670,7CDL: 6,484APH ToT: 0,8946CertNo:
BOAT
ClassMamba 31DesignerBengt KarlssonBuilderBK Marin ABAge date01.1981Series date01.1979Offset fileMamba31RM_V3.offData fileUFO_AH0649RUS78_Mamba
HULL
Length Overall9,290 mMaximum Beam3,016 mDraft1,654 mDisplacement4 713 kgDLR10,5132IMS DivisionCruiser/RacerDynamic Allowance0,680%Age Allowance0,650%RS Assessment-0,152%
PROPELLER
InstallationShaft exposedTypeFeathering 2 bladesDiameter0,428m
CREW
Maximum weight170 kg(declared)Minimum weight120 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail19,4719,79Headsail Luffed23,0423,04Headsail FlyingSymmetricAsymmetric65,2365,23 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS Maximum (m²)
Trysail5,55Storm Jib7,03Heavy Weather Jib18,97
SAIL LIMITS
Headsails5
✱ One set on the forestay
✱ Woven polyester sails
Spinnakers4
STABILITY
Righting Moment 60,4 kg·m Stability Index 125,6
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  TEST CERTIFICATE - NOT VALID FOR RACING
VPP ver: 2026 1.00 | © ORC | www.orc.org
TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST
Double HandedClub Certificate2026
MambaRUS 9209
Novokolomiazhskii av 11-70
197375 St-Petersburg, Russia
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 VMG1906,51322,21091,1978,9921,1891,6879,7882,0915,3
52°1202,9861,3728,6657,9620,8601,6591,9589,1597,0
60°1112,8814,7695,0630,2597,5580,1570,3564,4567,0
75°1057,6784,3669,2608,3577,5560,3549,2536,2533,2
90°1033,4751,0632,5579,5558,1547,3539,1518,7504,7
110°1001,1725,6610,3561,8536,7517,9504,6487,1475,9
120°1032,5745,1620,6566,0537,8516,1496,2468,5455,9
135°1173,6821,5669,5589,9552,0527,3505,1465,7439,0
150°1409,3960,9763,9653,9591,3557,9536,0498,0463,4
Run VMG1627,31109,6882,1755,1681,2633,1598,1553,0518,8
Selected Courses
Windward / Leeward1766,91215,9986,6867,0801,1762,4738,9717,5717,1
All purpose1333,2937,7773,5690,4647,1621,6605,6587,3582,7
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward835,40,7182
All purpose670,70,8946
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance730,50,8214
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1752,91205,3924,9778,7693,3646,0610,3555,3546,4
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0,6029
Downwind "popa"0,8058
70% up, 30% down "Ilhabela"0,6521
30% up, 70% down "Ilhabela-inverso"0,7319
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Predominantly Upwind739,10,8118
Predominantly Downwind664,70,9026
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP699,30,8580 Predom. Rc High550,31,0903 5B SF Bay L/M910,10,6593 TriNum AP Low855,60,7013 Predom. Dn Low1006,70,5960 5B SF Bay Med788,80,7607 TriNum AP Med665,80,9012 Predom. Dn L/M744,60,8058 5B SF Bay M/H725,20,8274 TriNum AP High602,70,9955 Predom. Dn Med641,80,9349 5B SF Bay High704,80,8513 TriNum W/L Low1155,90,5191 Predom. Dn M/H582,31,0303 5B AP Low942,80,6364 TriNum W/L Med828,80,7239 Predom. Dn High550,61,0897 5B AP L/M749,70,8003 TriNum W/L Hig736,70,8144 ChiMac Up Low938,90,6391 5B AP Med657,10,9132 Predom. Upwind773,00,7762 ChiMac Up Med846,10,7091 5B AP M/H608,70,9857 Predom. Reaching661,30,9074 ChiMac Up High739,90,8110 5B AP High589,71,0175 Predom. Downwind695,40,8628 ChiMac Off Low867,30,6918 5B W/L Low1296,30,4628 Predom. Up Low1071,20,5601 ChiMac Off Med769,40,7798 5B W/L L/M950,80,6310 Predom. Up L/M811,30,7396 ChiMac Off High654,70,9164 5B W/L Med815,80,7354 Predom. Up Med715,80,8382 ChiMac AP Low898,50,6678 5B W/L M/H744,50,8059 Predom. Up M/H670,60,8947 ChiMac AP Med804,40,7459 5B W/L High721,10,8320 Predom. Up High658,70,9109 ChiMac AP High695,10,8632 W/L 60-40 Low1319,20,4548 Predom. Rc Low916,80,6544 BayMac Cove Island1037,00,5786 W/L 60-40 L/M972,80,6168 Predom. Rc L/M696,20,8619 BayMac Shore1030,00,5825 W/L 60-40 Med840,00,7143 Predom. Rc Med615,30,9752 Harvest Moon581,51,0319 W/L 60-40 M/H772,70,7765 Predom. Rc M/H572,71,0476 5B SF Bay Low1097,00,5469 W/L 60-40 High754,40,7954      SA/DSPL Up15,04SA/DSPL Dn29,97
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance730,50,8214
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1752,91205,3924,9778,7693,3646,0610,3555,3546,4
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance730,50,8214
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1752,91205,3924,9778,7693,3646,0610,3555,3546,4
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance730,5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1752,91205,3924,9778,7693,3646,0610,3555,3546,4
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating730,50,8214
FinRating, kevyt tuuli1273,40,7853
FinRating, kova tuuli593,40,8426
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0,8214
Triple Number Coastal/Long Distance Low0,7013
Triple Number Coastal/Long Distance Medium0,9013
Triple Number Coastal/Long Distance High0,9955
Triple Number Windward/Leeward Low0,5448
Triple Number Windward/Leeward Medium0,7239
Triple Number Windward/Leeward High0,8144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1752,91205,3924,9778,7693,3646,0610,3555,3546,4
For information
General Purpose Handicap (GPH)751,2
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance730,50,8214
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Saronikos S All Purpose783,80,7655
Saronikos S Upwind897,70,6684
Saronikos S Downwind631,10,9507
Saronikos N All Purpose813,90,7372
Saronikos N Upwind937,50,6400
Saronikos N Downwind674,70,8893
Saronikos SW All Purpose784,40,7649
Saronikos SW Upwind919,10,6528
Saronikos SW Downwind633,60,9470
Saronikos NE All Purpose833,40,7200
Saronikos NE Upwind872,00,6881
Saronikos NE Downwind754,00,7958
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1752,91205,3924,9778,7693,3646,0610,3555,3546,4
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose699,30,8580
5-Band All Purpose Low1033,90,5803
5-Band All Purpose L/M775,10,7741
5-Band All Purpose Med677,30,8859
5-Band All Purpose M/H625,90,9587
5-Band All Purpose High604,20,9931
Single Number Predominant Upwind738,40,8125
Single Number Predominant Reaching634,00,9463
Single Number Predominant Downwind665,00,9022
5-Band 50-50 Windward/Leeward Low1296,30,4628
5-Band 50-50 Windward/Leeward L/M950,80,6310
5-Band 50-50 Windward/Leeward Med815,80,7354
5-Band 50-50 Windward/Leeward M/H744,50,8059
5-Band 50-50 Windward/Leeward High721,10,8320
5-Band 60-40 Windward/Leeward Low1319,20,4548
5-Band 60-40 Windward/Leeward L/M972,80,6168
5-Band 60-40 Windward/Leeward Med840,00,7143
5-Band 60-40 Windward/Leeward M/H772,70,7765
5-Band 60-40 Windward/Leeward High754,40,7954
Triple Number 50-50 Windward/Leeward Low1155,90,5191
Triple Number 50-50 Windward/Leeward Med829,00,7238
Triple Number 50-50 Windward/Leeward High736,80,8144
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward859,90,6978
Triple Number 60-40 Windward/Leeward Low1177,80,5094
Triple Number 60-40 Windward/Leeward Med852,60,7037
Triple Number 60-40 Windward/Leeward High766,10,7832
Triple Number All-Purpose Low928,30,6464
Triple Number All-Purpose Med686,50,8740
Triple Number All-Purpose High619,20,9689
Triple Number Predominant Upwind Low970,50,6182
Triple Number Predominant Upwind Med727,80,8244
Triple Number Predominant Upwind High674,20,8899
Triple Number Predominant Reaching Low833,10,7202
Triple Number Predominant Reaching Med635,00,9449
Triple Number Predominant Reaching High554,41,0822
Triple Number Predominant Downwind Low901,10,6659
Triple Number Predominant Downwind Med650,00,9231
Triple Number Predominant Downwind High559,61,0722
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance730,50,8214
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1752,91205,3924,9778,7693,3646,0610,3555,3546,4
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance730,50,8214
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1752,91205,3924,9778,7693,3646,0610,3555,3546,4
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low855,6
Triple Number Coastal/Long Distance Medium665,7
Triple Number Coastal/Long Distance High602,7
Triple Number Windward/Leeward Low1101,3
Triple Number Windward/Leeward Medium828,8
Triple Number Windward/Leeward High736,7
Predominantly Upwind739,1
Predominantly Downwind664,7
Predominantly Reaching640,7
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance730,50,8214
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1752,91205,3924,9778,7693,3646,0610,3555,3546,4
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0,7013
Triple Number Coastal/Long Distance Medium0,9013
Triple Number Coastal/Long Distance High0,9955
Triple Number Windward/Leeward Low0,5448
Triple Number Windward/Leeward Medium0,7239
Triple Number Windward/Leeward High0,8144
Coastal/Long Distance0,8214
Predominantly Upwind0,8118
Predominantly Downwind0,9026
For information
General Purpose Handicap (GPH)751,2
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0,8946
Distanseseilas Trippeltall svak vind0,7013
Distanseseilas Trippeltall mellomvind0,9013
Distanseseilas Trippeltall sterk vind0,9955
Pølsebane Trippeltall svak vind0,5448
Pølsebane Trippeltall mellomvind0,7239
Pølsebane Trippeltall sterk vind0,8144
Motvind Singeltall0,8118
Medvind Singeltall0,9026
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Coastal/Long Distance730,50,8214
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind739,10,8118
Predominantly Downwind664,70,9026
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore717,20,8366
Cape Doctor Coastal584,11,0273
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0,7013
Triple Number Coastal/Long Distance Medium0,9013
Triple Number Coastal/Long Distance High0,9955
Triple Number Windward/Leeward Low0,5448
Triple Number Windward/Leeward Medium0,7239
Triple Number Windward/Leeward High0,8144
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0,7013
Triple Number Coastal/Long Distance Medium0,9013
Triple Number Coastal/Long Distance High0,9955
Triple Number Windward/Leeward Low0,5448
Triple Number Windward/Leeward Medium0,7239
Triple Number Windward/Leeward High0,8144
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance730,50,8214
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Predominantly Upwind739,10,8118
Predominantly Downwind664,70,9026
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1752,91205,3924,9778,7693,3646,0610,3555,3546,4
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance730,50,8214
Triple Number Coastal/Long Distance Low855,60,7013
Triple Number Coastal/Long Distance Medium665,70,9013
Triple Number Coastal/Long Distance High602,70,9955
Triple Number Windward/Leeward Low1101,30,5448
Triple Number Windward/Leeward Medium828,80,7239
Triple Number Windward/Leeward High736,70,8144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1752,91205,3924,9778,7693,3646,0610,3555,3546,4
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP699,30,8580 Predom. Dn High550,61,0897 5B AP M/H608,70,9857 TriNum AP Low855,60,7013 Predom. Rc Low916,80,6544 5B AP High589,71,0175 TriNum AP Med665,80,9012 Predom. Rc L/M696,20,8619 5B SF Bay Low1097,00,5469 TriNum AP High602,70,9955 Predom. Rc Med615,30,9752 5B SF Bay L/M910,10,6593 TriNum W/L Low1155,90,5191 Predom. Rc M/H572,71,0476 5B SF Bay Med788,80,7607 TriNum W/L Med828,80,7239 Predom. Rc High550,31,0903 5B SF Bay M/H725,20,8274 TriNum W/L Hig736,70,8144 5B W/L Low1296,30,4628 5B SF Bay High704,80,8513 Predom. Upwind773,00,7762 5B W/L L/M950,80,6310 ChiMac Up Low938,90,6391 Predom. Reaching661,30,9074 5B W/L Med815,80,7354 ChiMac Up Med846,10,7091 Predom. Downwind695,40,8628 5B W/L M/H744,50,8059 ChiMac Up High739,90,8110 Predom. Up Low1071,20,5601 5B W/L High721,10,8320 ChiMac Off Low867,30,6918 Predom. Up L/M811,30,7396 W/L 60-40 Low1319,20,4548 ChiMac Off Med769,40,7798 Predom. Up Med715,80,8382 W/L 60-40 L/M972,80,6168 ChiMac Off High654,70,9164 Predom. Up M/H670,60,8947 W/L 60-40 Med840,00,7143 ChiMac AP Low898,50,6678 Predom. Up High658,70,9109 W/L 60-40 M/H772,70,7765 ChiMac AP Med804,40,7459 Predom. Dn Low1006,70,5960 W/L 60-40 High754,40,7954 ChiMac AP High695,10,8632 Predom. Dn L/M744,60,8058 5B AP Low942,80,6364 BayMac Cove Island1037,00,5786 Predom. Dn Med641,80,9349 5B AP L/M749,70,8003 BayMac Shore1030,00,5825 Predom. Dn M/H582,31,0303 5B AP Med657,10,9132 Harvest Moon581,51,0319      SA/DSPL Up15,04SA/DSPL Dn29,97
ORC Ref  TEST CERTIFICATE - NOT VALID FOR RACING
VPP ver: 2026 1.00 | © ORC | www.orc.org
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Double HandedClub Certificate2026
MambaRUS 9209
Novokolomiazhskii av 11-70
197375 St-Petersburg, Russia
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMamba 31Measurement25.04.2023HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9,290Maximum beam3,016Draft1,654Displacement4 713Wetted area19,43IMS L7,712LSM07,653Accomod. length9,290Sink (kg/mm) 13,21
VCGD-0,015VCGM-0,009 RM Rated (kg·m) 60,4Limit of positive stability(°) 122,1 Stability Index 125,6 BLR index 0,0000Default crew weight170 Declared crew weight 170
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFeathering 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0,428PBW0,136PIPA0,0036
PSD0,025PHD0,065PHL0,094
PSA12,0°ESL0,880
ST10,025ST20,097ST30,100
ST40,048ST50,165
RIG
BackstayAdjustableForestayFixedInner forestayFixedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders1Rotating mastNo
P10,390IG11,750ISP11,770MDT10,115MDL10,180MDT2MDL2TLNo TaperMW0,180GO0,210
E3,050J3,500BAS1,300FSD0,031SFJ0,300SPLWPLTPS4,465BD0,105MWT72,38MCG4,838
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date25.04.2023
SFFP0,460FFM1,015FF1,023LCFcl5,135SG1,0260
SAFP8,849FAM0,915FA0,919LCFsh5,349HBI0,950
W132,5W232,5W332,5W432,5
PD1106,0PD2110,0PD3105,0PD4107,0
WD10,150PLM2250,00GSA50,0RSA50,0RM60,7
INVENTORY
Fixed Ballast Total0
Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCG002Anchor169,231,10001Chain241,50004Tools405,220,50Total deductible804,910,47
ORC Ref  TEST CERTIFICATE - NOT VALID FOR RACING
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Double HandedClub Certificate2026
MambaRUS 9209
Novokolomiazhskii av 11-70
197375 St-Petersburg, Russia
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM-New0,120,651,172,122,6219,4711.05.2024
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentH-New0,060,480,931,973,124,2711,22NoNo 23,04
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment013,0010,7711,896,626,45103%65,23
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length9,3 mTable area0,44 m²Headroom1,65 mMinimum number of berths4Personal gear stowage0,16 m³Fresh water capacity66 lMinimum number of seats in cockpit4Food stowage0,24 m³Fuel capacity36 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
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