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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 | 45.6° | 45.6° | 44.1° | 43.3° | 42.6° | 42.3° | 41.7° | 41.5° | 42.3° |
| Beat VMG | 1.55 | 2.17 | 2.68 | 3.03 | 3.30 | 3.55 | 3.76 | 3.95 | 3.88 |
| 52° | 2.46 | 3.39 | 4.10 | 4.58 | 4.97 | 5.31 | 5.55 | 5.77 | 5.73 |
| 60° | 2.64 | 3.60 | 4.31 | 4.81 | 5.21 | 5.52 | 5.74 | 5.96 | 5.97 |
| 75° | 2.74 | 3.73 | 4.47 | 5.02 | 5.44 | 5.73 | 5.92 | 6.17 | 6.31 |
| 90° | 2.65 | 3.65 | 4.42 | 5.00 | 5.46 | 5.79 | 6.01 | 6.29 | 6.48 |
| 110° | 2.41 | 3.42 | 4.28 | 4.94 | 5.47 | 5.83 | 6.07 | 6.43 | 6.75 |
| 120° | 2.29 | 3.28 | 4.14 | 4.81 | 5.36 | 5.75 | 6.02 | 6.41 | 6.75 |
| 135° | 2.02 | 2.96 | 3.81 | 4.49 | 5.05 | 5.51 | 5.83 | 6.23 | 6.55 |
| 150° | 1.79 | 2.50 | 3.13 | 3.80 | 4.36 | 4.85 | 5.30 | 5.91 | 6.28 |
| Run VMG | 1.44 | 2.16 | 2.88 | 3.54 | 4.12 | 4.62 | 5.07 | 5.75 | 6.15 |
| Gybe Angles | 141.3° | 141.3° | 169.0° | 169.9° | 170.8° | 171.7° | 172.3° | 175.0° | 176.2° |
APH ToD:825.8CDL: 5.263APH ToT: 0.7266CertNo:
BOATClassNeptun 26DesignerBuilderTRIDENTAge date01.1981Series date01.1980Offset fileNeptune28RM_V2.offData fileOmega
HULLLength Overall7.678 mMaximum Beam2.434 mDraft1.435 mDisplacement3 561 kgDLR10.7208IMS DivisionCruiser/RacerDynamic Allowance0.580%Age Allowance0.487%
PROPELLERInstallationNo PropellerTypeN/ADiameterN/A
CREWMaximum weight180 kg(declared)Minimum weight120 kg
✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS
(m²)
MeasuredRatedMainsail9.209.31Headsail Luffed18.1418.14Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS
(m²)
Trysail2.90Storm Jib3.45Heavy Weather Jib9.30
SAIL LIMITSHeadsails5✱ One set on the forestay
Spinnakers0✱ No 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)ClassNeptun 26Measurement15.04.2025HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA7.678Max. Beam2.434Draft1.435Displacement3 561Wetted area16.62IMS L6.784LSM06.925Acc. length7.678Sink (kg/mm)
11.38
VCGD0.062VCGM0.062RM Rated
(kg·m)
44.4Limit of positive stability(°)
N/AStability IndexN/ADefault crew weight170Declared crew weight180
PROPELLERPropeller TypeNo Propeller
Hydro generatorNo
RIGForestay tensionFixedInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footRunning backstays0CheckstaysSpreaders1Rotating mastNo
P6.900IG8.195ISP7.975MDT10.085MDL10.115MDT2MDL2TLMW0.115GO0.155
E2.400J3.300BAS1.195FSD0.025SFJ0.000SPLWPLTPSBD0.085MWTMCG
Flying Headsail Foretriangles
IdISPTPS
FLOTATION AND STABILITYCalculation methodRM estimatedFlotation Date15.04.2025
SFFP0.537FFM0.925FF0.925LCFcl4.565SG1.0260
SAFP7.456FAM0.670FA0.670LCFsh4.711HBI0.867
INVENTORYFixed Ballast Total0
Total deductible
Total deductible
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MAINSAILIdMHBMUWMTWMHWMQWAreaMeas.DateCommentM-10.120.460.821.401.869.2015.04.2025
MIZZENIdMHBMUWMTWMHWMQWAreaMeas.DateComment
HEADSAILIdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentH-10.080.601.172.323.524.707.73NoNo 18.14
SYMMETRIC SPINNAKERIdSLUSLESLSHWSFLAreaMeas.DateComment
ASYMMETRIC SPINNAKERIdSLUSLESLSHWSFLRatioAreaMeas.DateComment
MIZZEN STAYSAILIdYSHFYSHWYSFLAreaMeas.DateComment
QUADRILATERALIdQLEQHLQFLQCDQLMMastAreaMeas.DateComment
CRUISER/RACER REQUIREMENTS*Accommodation length7.7 mTable area0.22 m²Headroom1.40 mMinimum number of berths2Personal gear stowage0.08 m³Fresh water capacity17 lMinimum number of seats in cockpit2Food stowage0.12 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.