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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 Angles | 43.1° | 43.1° | 40.8° | 39.0° | 37.6° | 37.4° | 37.4° | 37.7° | 39.3° |
| Beat VMG | 2.43 | 3.37 | 4.12 | 4.65 | 4.95 | 5.08 | 5.14 | 5.16 | 5.07 |
| 52° | 3.78 | 5.12 | 6.07 | 6.63 | 6.94 | 7.09 | 7.17 | 7.23 | 7.20 |
| 60° | 4.02 | 5.38 | 6.30 | 6.80 | 7.10 | 7.30 | 7.40 | 7.50 | 7.50 |
| 75° | 4.16 | 5.54 | 6.45 | 6.93 | 7.25 | 7.53 | 7.75 | 7.99 | 8.08 |
| 90° | 4.37 | 5.82 | 6.77 | 7.19 | 7.42 | 7.62 | 7.88 | 8.40 | 8.73 |
| 110° | 4.48 | 5.96 | 6.94 | 7.49 | 7.96 | 8.29 | 8.58 | 9.13 | 9.66 |
| 120° | 4.33 | 5.83 | 6.85 | 7.43 | 7.96 | 8.50 | 9.03 | 9.85 | 10.82 |
| 135° | 3.74 | 5.23 | 6.40 | 7.09 | 7.62 | 8.18 | 8.82 | 10.76 | 13.41 |
| 150° | 3.10 | 4.40 | 5.54 | 6.46 | 7.06 | 7.52 | 8.01 | 9.24 | 12.50 |
| Run VMG | 2.68 | 3.81 | 4.80 | 5.60 | 6.23 | 6.78 | 7.24 | 8.14 | 10.83 |
| Gybe Angles | 143.0° | 143.0° | 147.4° | 150.3° | 158.4° | 172.3° | 176.3° | 174.4° | 143.2° |
APH ToD:555.9CDL: 8.604APH ToT: 1.0794CertNo:6335.01
BOATClassArchambaut A 31DesignerJoubert/NivelBuilderDANSE SAINT ROMAINAge date04.2010Series date01.2010Offset fileA31-FK.offData fileRU6335 PREMERA
HULLLength Overall9.550 mMaximum Beam3.244 mDraft1.944 mDisplacement2 923 kgDLR5.0025IMS DivisionCruiser/RacerDynamic Allowance0.180%Age Allowance0.487%
PROPELLERInstallationStrutTypeFolding 2 bladesDiameter0.382m
CREWMaximum weight533 kg(default)Minimum weight403 kg
✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS
(m²)
MeasuredRatedMainsail26.6727.15Headsail Luffed21.9021.90Headsail FlyingSymmetricAsymmetric88.0688.06
(All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS
(m²)
Trysail7.80Storm Jib7.22Heavy Weather Jib19.48
SAIL LIMITSHeadsails5Spinnakers4✱ Asymmetric may be tacked on the pole
STABILITYRighting Moment64.6 kg·mStability Index127.2
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.
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Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)ClassArchambaut A 31Measurement17.05.2025HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.550Max. Beam3.244Draft1.944Displacement2 923Wetted area17.64IMS L8.765LSM08.360Acc. length9.550Sink (kg/mm)
13.14
VCGD-0.231VCGM-0.220RM Rated
(kg·m)
64.6Limit of positive stability(°)
133.0Stability Index127.2Default crew weight533Declared crew weightN/A
PROPELLERPropeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.382PBW0.070PIPA0.0035
EDL1.440ST10.050ST20.201
ST30.201ST40.112ST50.320
RIGForestay tensionAftInner stayFixedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footRunning backstays0CheckstaysSpreaders2Rotating mastNo
P11.660IG12.010ISP13.740MDT10.106MDL10.153MDT20.090MDL20.132TL0.800MW0.153GO0.153
E3.820J3.670BAS1.530FSD0.030SFJ0.000SPL3.950WPLTPS5.130BD0.120MWT82.00MCG2.940
Flying Headsail Foretriangles
IdISPTPS
FLOTATION AND STABILITYCalculation methodPoles incliningFlotation Date17.05.2025Measurer40
SFFP0.191FFM1.287FF1.295LCFcl5.194SG1.0000
SAFP9.364FAM0.952FA0.956LCFsh5.414HBI1.110
W140.0W240.0W340.0W440.0
PD1237.6PD2237.8PD3238.4PD4238.4
WD10.390PLM2110.00GSA0.5RSA91.7RM64.1
INVENTORYFixed Ballast Total0
Total deductible
Total deductible
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MAINSAILIdMHBMUWMTWMHWMQWAreaMeas.DateComment10.180.821.462.463.2326.6718.07.2014
MIZZENIdMHBMUWMTWMHWMQWAreaMeas.DateComment
HEADSAILIdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment#10.170.591.071.902.833.8011.30NoNo 21.9018.07.2014#20.070.591.071.902.833.7111.30NoNo 21.6717.05.2025
SYMMETRIC SPINNAKERIdSLUSLESLSHWSFLAreaMeas.DateComment
ASYMMETRIC SPINNAKERIdSLUSLESLSHWSFLRatioAreaMeas.DateComment#114.7612.8313.807.767.26107%88.06
MIZZEN STAYSAILIdYSHFYSHWYSFLAreaMeas.DateComment
QUADRILATERALIdQLEQHLQFLQCDQLMMastAreaMeas.DateComment
CRUISER/RACER REQUIREMENTS*Accommodation length9.6 mTable area0.44 m²Headroom1.67 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity72 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity42 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.