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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 | 44.4° | 44.4° | 41.9° | 40.9° | 40.8° | 41.1° | 41.1° | 41.6° | 43.2° |
| Beat VMG | 2.02 | 2.79 | 3.39 | 3.79 | 4.03 | 4.14 | 4.20 | 4.20 | 4.10 |
| 52° | 3.19 | 4.28 | 5.05 | 5.58 | 5.90 | 6.06 | 6.12 | 6.16 | 6.13 |
| 60° | 3.40 | 4.52 | 5.28 | 5.79 | 6.09 | 6.25 | 6.32 | 6.38 | 6.37 |
| 75° | 3.51 | 4.66 | 5.45 | 5.97 | 6.26 | 6.44 | 6.56 | 6.69 | 6.73 |
| 90° | 3.42 | 4.58 | 5.40 | 5.96 | 6.30 | 6.52 | 6.68 | 6.91 | 7.05 |
| 110° | 2.99 | 4.15 | 5.08 | 5.80 | 6.25 | 6.53 | 6.76 | 7.13 | 7.40 |
| 120° | 2.82 | 3.95 | 4.90 | 5.64 | 6.15 | 6.47 | 6.71 | 7.14 | 7.52 |
| 135° | 2.44 | 3.52 | 4.47 | 5.23 | 5.84 | 6.25 | 6.53 | 6.98 | 7.42 |
| 150° | 2.05 | 3.03 | 3.95 | 4.72 | 5.38 | 5.91 | 6.28 | 6.76 | 7.19 |
| Run VMG | 1.77 | 2.62 | 3.43 | 4.16 | 4.81 | 5.39 | 5.88 | 6.50 | 6.92 |
| Gybe Angles | 149.2° | 149.2° | 154.1° | 163.1° | 170.3° | 174.5° | 178.1° | 179.5° | 179.5° |
APH ToD:697.3CDL: 6.627APH ToT: 0.8604CertNo:
BOATClassHR 312DesignerEnderleinBuilderHallberg RassyAge date01.1980Series date01.1979Offset fileCLHR312.offData fileKAJSA__2023
HULLLength Overall9.420 mMaximum Beam3.090 mDraft1.614 mDisplacement5 117 kgDLR11.5755IMS DivisionCruiser/RacerDynamic Allowance0.680%Age Allowance0.487%
PROPELLERInstallationStrutTypeFolding 2 bladesDiameter0.380m
CREWMaximum weight300 kg(declared)Minimum weight170 kg
✱ when appliedNon Manual PowerCrew Arm Extension
SAIL AREAS
(m²)
MeasuredRatedMainsail21.4121.65Headsail Luffed29.7429.74Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS
(m²)
Trysail6.69Storm Jib7.46Heavy Weather Jib20.13
SAIL LIMITSHeadsails1✱ One set on the forestay
✱ Zero set flying
Spinnakers0✱ Spinnaker pole aboard
STABILITYRighting MomentN/AStability IndexN/A
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)ClassHR 312Measurement06.06.2023HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.420Max. Beam3.090Draft1.614Displacement5 117Wetted area22.86IMS L7.672LSM07.617Acc. length9.245Sink (kg/mm)
14.00
VCGD-0.059VCGM-0.048RM Rated
(kg·m)
70.3Limit of positive stability(°)
N/AStability IndexN/ADefault crew weight467Declared crew weight300
PROPELLERPropeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0033
EDL0.700ST10.050ST20.170
ST30.170ST40.100ST50.300
RIGForestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footRunning backstaysCheckstaysSpreaders1Rotating mastNo
P10.850IG12.210ISP12.420MDT10.130MDL10.160MDT2MDL2TLNo TaperMWGO
E3.520J4.010BAS1.380FSDFoilSFJ0.000SPL4.050WPLTPS0.000BDMWTMCG
Flying Headsail Foretriangles
IdISPTPS
FLOTATION AND STABILITYCalculation methodRM estimatedFlotation Date13.07.2024
SFFP0.874FFM1.180FF1.180LCFcl5.387SG1.0260
SAFP9.147FAM0.960FA0.960LCFsh5.615HBI0.999
INVENTORYFixed Ballast Total0
Total deductible
Total deductible
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MAINSAILIdMHBMUWMTWMHWMQWAreaMeas.DateComment0010.120.651.172.082.8221.4106.06.2023
MIZZENIdMHBMUWMTWMHWMQWAreaMeas.DateComment
HEADSAILIdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment0020.030.581.192.493.885.2711.63NoNo 29.7406.06.2023
SYMMETRIC SPINNAKERIdSLUSLESLSHWSFLAreaMeas.DateComment
ASYMMETRIC SPINNAKERIdSLUSLESLSHWSFLRatioAreaMeas.DateComment
MIZZEN STAYSAILIdYSHFYSHWYSFLAreaMeas.DateComment
QUADRILATERALIdQLEQHLQFLQCDQLMMastAreaMeas.DateComment
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.