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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 | 43.4° | 43.4° | 41.1° | 39.9° | 39.3° | 38.9° | 38.9° | 39.7° | 41.1° |
| Beat VMG | 2.47 | 3.37 | 4.03 | 4.45 | 4.65 | 4.73 | 4.77 | 4.78 | 4.70 |
| 52° | 3.85 | 5.12 | 5.96 | 6.42 | 6.64 | 6.74 | 6.79 | 6.84 | 6.83 |
| 60° | 4.10 | 5.39 | 6.19 | 6.60 | 6.82 | 6.92 | 6.98 | 7.05 | 7.07 |
| 75° | 4.27 | 5.57 | 6.35 | 6.75 | 6.99 | 7.15 | 7.26 | 7.39 | 7.47 |
| 90° | 4.14 | 5.48 | 6.33 | 6.78 | 7.05 | 7.27 | 7.45 | 7.69 | 7.85 |
| 110° | 3.89 | 5.30 | 6.32 | 6.85 | 7.19 | 7.47 | 7.71 | 8.00 | 8.22 |
| 120° | 3.71 | 5.10 | 6.14 | 6.76 | 7.13 | 7.44 | 7.73 | 8.26 | 8.61 |
| 135° | 3.26 | 4.55 | 5.61 | 6.41 | 6.88 | 7.22 | 7.54 | 8.20 | 8.93 |
| 150° | 2.68 | 3.86 | 4.93 | 5.83 | 6.50 | 6.92 | 7.25 | 7.86 | 8.57 |
| Run VMG | 2.31 | 3.34 | 4.27 | 5.08 | 5.78 | 6.35 | 6.79 | 7.40 | 7.97 |
| Gybe Angles | 146.2° | 146.2° | 151.2° | 154.8° | 161.7° | 168.7° | 177.7° | 178.8° | 178.6° |
APH ToD:596.8CDL: 8.009APH ToT: 1.0053CertNo:0324.3
BOATClassYAMAHA 34 S/S-L-TDDesignerYAMAHABuilderYAMAHAAge date01.1990Series date01.1989Offset fileJCBYM34S-RU.OFFData fileRU0324 LASTOCHKA
HULLLength Overall10.300 mMaximum Beam3.444 mDraft1.917 mDisplacement5 155 kgDLR9.2604IMS DivisionCruiser/RacerDynamic Allowance0.190%Age Allowance0.487%
PROPELLERInstallationShaft exposedTypeFeathering 2 bladesDiameter0.410m
CREWMaximum weight550 kg(declared)Minimum weight420 kg
✱ when appliedNon Manual PowerCrew Arm Extension
SAIL AREAS
(m²)
MeasuredRatedMainsail36.7937.49Headsail Luffed31.7231.72Headsail FlyingSymmetric63.8163.81Asymmetric
STORM SAIL AREAS
(m²)
Trysail10.98Storm Jib7.56Heavy Weather Jib20.40
SAIL LIMITSHeadsails5✱ One set on the forestay
✱ Woven polyester sails
Spinnakers4 STABILITYRighting Moment85.1 kg·mStability Index113.5
COMMENTSEx LAGUNA (2012-2019)
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)ClassYAMAHA 34 S/S-L-TDMeasurement25.09.2023HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.300Max. Beam3.444Draft1.917Displacement5 155Wetted area22.19IMS L8.574LSM08.226Acc. length10.300Sink (kg/mm)
15.81
VCGD0.058VCGM0.093RM Rated
(kg·m)
85.1Limit of positive stability(°)
113.3Stability Index113.5Default crew weight521Declared crew weight550
PROPELLERPropeller TypeFeathering 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.410PBW0.135PIPA0.0036
PSD0.025PHD0.060PHL0.120
PSA17.0°ESL0.725
ST10.023ST20.088ST30.098
ST40.053ST50.170
RIGForestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footRunning backstays0CheckstaysSpreaders2Rotating mastNo
P13.340IG12.290ISP12.390MDT10.109MDL10.173MDT20.075MDL20.097TL2.650MW0.168GO0.168
E4.700J3.650BAS1.360FSD0.030SFJ0.150SPL3.650WPLTPSBD0.139MWT128.00MCG5.150
Flying Headsail Foretriangles
IdISPTPS
FLOTATION AND STABILITYCalculation methodPoles incliningFlotation Date09.06.2025
SFFP0.375FFM1.225FF1.225LCFcl5.698SG1.0250
SAFP9.350FAM0.995FA0.995LCFsh5.950HBI1.091
W110.0W220.0W330.0W440.0
PD142.8PD282.9PD3123.7PD4169.4
WD10.030PLM2048.00GSA19.2RSA6350.0RM85.2
INVENTORYFixed Ballast Total0
Total deductible
Total deductible
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MAINSAILIdMHBMUWMTWMHWMQWAreaMeas.DateCommentM20.141.001.782.943.8736.7931.05.2025
MIZZENIdMHBMUWMTWMHWMQWAreaMeas.DateComment
HEADSAILIdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentH20.100.651.232.543.995.5311.95NoNo 31.7231.05.2025
SYMMETRIC SPINNAKERIdSLUSLESLSHWSFLAreaMeas.DateComment312.4512.4512.456.156.1563.8128.06.2009
ASYMMETRIC SPINNAKERIdSLUSLESLSHWSFLRatioAreaMeas.DateComment
MIZZEN STAYSAILIdYSHFYSHWYSFLAreaMeas.DateComment
QUADRILATERALIdQLEQHLQFLQCDQLMMastAreaMeas.DateComment
CRUISER/RACER REQUIREMENTS*Accommodation length10.3 mTable area0.44 m²Headroom1.72 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity86 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity56 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.