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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 | 41.7° | 41.7° | 39.7° | 39.3° | 39.5° | 39.5° | 39.5° | 39.9° | 41.7° |
| Beat VMG | 2.23 | 3.00 | 3.55 | 3.87 | 4.03 | 4.10 | 4.14 | 4.11 | 3.95 |
| 52° | 3.39 | 4.47 | 5.17 | 5.57 | 5.77 | 5.87 | 5.92 | 5.92 | 5.85 |
| 60° | 3.54 | 4.66 | 5.35 | 5.72 | 5.92 | 6.04 | 6.10 | 6.13 | 6.10 |
| 75° | 3.62 | 4.76 | 5.46 | 5.85 | 6.07 | 6.21 | 6.32 | 6.42 | 6.46 |
| 90° | 3.54 | 4.68 | 5.43 | 5.86 | 6.13 | 6.31 | 6.46 | 6.68 | 6.80 |
| 110° | 3.09 | 4.23 | 5.11 | 5.73 | 6.10 | 6.36 | 6.57 | 6.92 | 7.10 |
| 120° | 2.93 | 4.05 | 4.95 | 5.63 | 6.04 | 6.32 | 6.56 | 6.98 | 7.34 |
| 135° | 2.57 | 3.63 | 4.54 | 5.27 | 5.80 | 6.14 | 6.40 | 6.84 | 7.24 |
| 150° | 2.13 | 3.10 | 3.94 | 4.53 | 5.12 | 5.60 | 5.95 | 6.46 | 6.89 |
| Run VMG | 1.88 | 2.68 | 3.41 | 4.10 | 4.73 | 5.29 | 5.72 | 6.28 | 6.72 |
| Gybe Angles | 143.8° | 143.8° | 144.5° | 169.2° | 170.1° | 171.2° | 173.2° | 175.3° | 175.3° |
APH ToD:703.8CDL: 6.234APH ToT: 0.8525CertNo:
BOATClassCompis 28DesignerBO ANDERSSONBuilderKARLSTADAge date01.1972Series date01.1971Offset filee186.bofData fileDiviya
HULLLength Overall8.560 mMaximum Beam2.920 mDraft1.557 mDisplacement3 100 kgDLR9.8556IMS DivisionCruiser/RacerDynamic Allowance0.570%Age Allowance0.487%
PROPELLERInstallationShaft exposedTypeFolding 2 bladesDiameter0.330m
CREWMaximum weight160 kg(declared)Minimum weight120 kg
✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS
(m²)
MeasuredRatedMainsail14.1614.29Headsail Luffed26.5726.57Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS
(m²)
Trysail4.47Storm Jib5.62Heavy Weather Jib15.17
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)ClassCompis 28Measurement14.04.2025HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabYes
LOA8.560Max. Beam2.920Draft1.557Displacement3 100Wetted area14.75IMS L6.866LSM06.800Acc. length8.560Sink (kg/mm)
10.31
VCGD0.059VCGM0.017RM Rated
(kg·m)
35.9Limit of positive stability(°)
N/AStability IndexN/ADefault crew weight170Declared crew weight160
PROPELLERPropeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.330PBW0.085PIPA0.0011
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIGForestay tensionAftInner stayFixedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footRunning backstaysCheckstaysSpreaders1Rotating mastNo
P9.010IG10.480ISPMDT10.100MDL10.155MDT2MDL2TLMW0.155GO0.195
E2.830J3.550BAS1.330FSD0.030SFJ0.030SPLWPLTPSBD0.110MWTMCG
Flying Headsail Foretriangles
IdISPTPS
FLOTATION AND STABILITYCalculation methodRM estimatedFlotation Date14.04.2025
INVENTORYFixed Ballast Total0
Total deductible
Total deductible
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MAINSAILIdMHBMUWMTWMHWMQWAreaMeas.DateCommentM-10.110.490.891.632.3014.1614.04.2025
MIZZENIdMHBMUWMTWMHWMQWAreaMeas.DateComment
HEADSAILIdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentH-10.060.611.202.483.875.2410.40NoNo 26.5714.04.2025
SYMMETRIC SPINNAKERIdSLUSLESLSHWSFLAreaMeas.DateComment
ASYMMETRIC SPINNAKERIdSLUSLESLSHWSFLRatioAreaMeas.DateComment
MIZZEN STAYSAILIdYSHFYSHWYSFLAreaMeas.DateComment
QUADRILATERALIdQLEQHLQFLQCDQLMMastAreaMeas.DateComment
CRUISER/RACER REQUIREMENTS*Accommodation length8.6 mTable area0.33 m²Headroom1.55 mMinimum number of berths3Personal gear stowage0.12 m³Fresh water capacity39 lMinimum number of seats in cockpit3Food stowage0.18 m³Fuel capacity22 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.