MultihullClub Certificate2025
Ni Pu Dun
ORC Multihull
Rating Office
www.orc.org/multihull
mh@orc.org
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 Angles54.2°54.2°53.3°52.6°51.8°46.6°45.7°44.6°44.3°
Beat VMG1.702.503.263.924.464.915.325.956.44
52°2.704.075.296.378.167.878.279.189.97
60°3.655.286.737.878.648.718.839.8510.91
75°4.005.737.248.349.149.939.4810.8812.86
90°4.025.777.328.469.3110.1911.3015.2014.50
110°3.585.206.677.868.739.4710.2712.6216.73
120°3.174.656.047.258.218.939.6211.3314.08
135°2.503.765.006.137.178.058.7610.0611.76
150°2.143.244.365.406.397.328.139.4410.83
Run VMG1.922.913.924.885.816.697.528.8810.11
Gybe Angles168.2°168.2°168.2°169.4°170.3°171.2°172.3°174.5°173.7°
MHR:569.5CertNo:MC130
BOAT
ClassDP49DesignerPaperini MassimoBuilderDalla Pietà YachtsAge date02/2017Series date01/2017Offset fileDP49.offData fileMC130-DP49-Ni Pu Dun
HULL
Length Overall15.390 mMaximum Beam8.556 mDraft1.665 mDisplacement16,027 kgDLR5.3827Dynamic Allowance0.000%Age Allowance0.260%
PROPELLER
InstallationStrutTypeSolid 3 bladesDiameter0.400m
CREW
Weight527 kg(default)Non Manual PowerCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail79.6788.54Headsail Luffed58.3858.38Headsail Flying134.38SymmetricAsymmetric
COMMENTS
Hainan 25
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.
MultihullClub Certificate2025
Ni Pu Dun
ORC Multihull
Rating Office
www.orc.org/multihull
mh@orc.org
Time Allowances in secs/NM
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG2115.61438.41104.4917.5806.4733.8677.1605.1559.0
52°1331.0885.6679.9564.9441.0457.3435.2392.0361.0
60°985.0681.9535.1457.6416.7413.5407.8365.6330.1
75°900.9628.3497.0431.5393.9362.7379.6331.0279.9
90°896.3623.4492.1425.8386.8353.2318.5236.9248.2
110°1005.1692.8540.0457.8412.4380.1350.6285.3215.1
120°1134.2774.0596.2496.5438.7402.9374.1317.7255.6
135°1437.8956.9719.9586.8502.1447.1411.2357.9306.1
150°1684.91109.9826.6666.8563.2491.9442.7381.3332.3
Run VMG1875.21235.8919.4737.8620.1537.9478.5405.2355.9
Selected Courses
Windward / Leeward1994.71337.11011.9827.7713.2635.9577.8505.2457.5
All purpose1435.8970.8742.4616.0536.8488.2452.9391.4349.0
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward757.80.7918
All purpose569.51.0535
 
MultihullClub Certificate2025
Ni Pu Dun
ORC Multihull
Rating Office
www.orc.org/multihull
mh@orc.org
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDP49MeasurementHIN
LOA15.390Max. Beam8.556Draft1.665Displacement16,027Dspl lightship15,500Wetted area50.30
Superstructure frontal area23.58Superstructure lateral area37.68Default crew weight527Declared crew weightN/A
PROPELLER
Propeller TypeSolid 3 blades
InstallationStrutTwin screwYesHydro generatorNo
PRD0.400PBW0.100PIPA0.0402
EDL2.000ST10.062ST20.203
ST30.203ST40.143ST50.300
RIG
Single headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders2Rotating mastNoMast rakeMast cant angle
P18.500IG17.000ISP18.000MDT10.200MDL10.300MDT20.200MDL20.300TLMW0.300GO0.300
E6.800J5.500JZ1.760BAS1.730FSDSFJ0.500SPLWPLTPS6.500BD
ForetrianglesIdITPTPZComment017.0005.5001.760main forestay018.0006.5001.760ISP/TPS
FLOTATION
Flotation Date22/11/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
MultihullClub Certificate2025
Ni Pu Dun
ORC Multihull
Rating Office
www.orc.org/multihull
mh@orc.org
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain pin head0.301.803.204.705.7579.67estimate
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentIC12.0022.00NoYes0134.38estimate1J6.2018.50NoNo058.38estimate