ORC Certificate for Calamity

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	46.2°	46.2°	45.3°	44.0°	45.3°	44.3°	44.9°	43.0°	44.1°
Beat VMG	1.89	2.97	4.02	4.79	5.72	6.38	7.06	7.49	7.38
52°	2.97	4.66	6.29	7.42	8.94	9.97	11.06	11.64	11.57
60°	3.22	5.05	6.82	8.05	9.64	10.85	12.13	12.97	13.00
75°	3.56	5.41	7.30	9.00	10.26	12.14	14.21	16.24	16.78
90°	3.71	5.39	7.19	9.39	10.38	12.58	15.09	19.64	21.21
110°	3.74	5.94	8.07	9.56	11.84	13.94	16.40	17.98	23.19
120°	3.88	5.74	7.70	9.85	11.05	13.71	16.03	19.76	20.11
135°	3.21	4.94	6.73	8.44	10.29	12.26	13.61	18.77	23.47
150°	2.82	4.17	5.53	7.06	8.47	10.08	11.88	15.49	19.42
Run VMG	2.45	3.61	4.79	6.11	7.33	8.73	10.29	13.42	16.82
Gybe Angles	143.3°	143.3°	138.5°	143.9°	140.4°	136.9°	139.6°	137.4°	141.8°

MHR:452.4CertNo:MC144

BOAT

ClassORC50DesignerChristophe BarreauBuilderMarsaudonCompositeAge date01/2023Series date10/2017Offset fileORC50.offData fileMC144-Calamity

HULL

Length Overall15.796Maximum Beam8.180Draft2.899Displacement11,860DLR2.3211Dynamic Allowance0.000%Age Allowance0.292%RSA-0.102%

PROPELLER

InstallationStrutTypeFolding 3 bladesDiameter0.400m

CREW

Weight537(default)Crew Arm Extension

SAIL AREAS (m²)

MeasuredRatedMainsail92.87104.74Headsail Luffed67.3267.32Headsail FlyingSymmetricAsymmetric235.72

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.

Time Allowances in secs/NM
Selected Courses
Wind Velocity	4 kt	6 kt	8 kt	10 kt	12 kt	14 kt	16 kt	20 kt	24 kt
Beat VMG	1908.3	1213.0	894.5	752.4	629.5	564.2	509.6	480.5	487.8
52°	1213.7	772.7	572.4	485.3	402.8	361.2	325.6	309.2	311.3
60°	1118.0	712.6	527.8	447.3	373.3	331.7	296.7	277.6	276.9
75°	1012.1	665.0	493.0	399.8	351.0	296.4	253.4	221.7	214.6
90°	970.7	668.3	500.8	383.5	346.9	286.1	238.6	183.3	169.7
110°	961.8	606.5	446.4	376.4	304.1	258.3	219.5	200.2	155.2
120°	928.8	627.7	467.6	365.7	325.8	262.6	224.6	182.2	179.0
135°	1122.8	728.2	535.1	426.6	349.8	293.7	264.6	191.8	153.4
150°	1274.7	864.2	651.3	509.9	425.1	357.3	303.0	232.4	185.4
Run VMG	1471.9	997.9	752.1	588.8	490.9	412.6	349.9	268.3	214.0
Windward / Leeward	1688.6	1105.4	823.3	670.6	560.2	488.4	429.7	374.4	350.9
All purpose	1277.1	835.7	621.2	505.5	426.0	367.7	321.3	278.8	260.5

Single Number Scoring Options
Course	Time On Distance	Time On Time
Windward / Leeward	599.1	1.0014
All purpose	452.4	1.3263

Data in meters/kilograms (Metric)

HULL AND APPENDAGES (Lightship Trim)

ClassORC50MeasurementHINFRCSMTS521

LOA15.796Max. Beam8.180Draft2.899Displacement11,860Dspl lightship11,065Wetted area48.36

Superstructure frontal area16.86Superstructure lateral area30.44Default crew weight537Declared crew weightN/A

PROPELLER

Propeller TypeFolding 3 blades

InstallationStrutTwin screwYesHydro generatorNo

PRD0.400PBW0.100PIPA0.0088

EDL2.400ST10.062ST20.203

ST30.203ST40.143ST50.400

RIG

Single headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders0Jumper StrutsNoRotating mastNoMast rake2°Mast cant angle0°

P18.470IG16.680ISP18.880MDT10.275MDL10.375MDT20.230MDL20.350TL1.800MW0.430GO0.430

E6.259J6.505JZ1.872BAS0.800FSD0.000SFJ0.750SPLWPLTPS8.663BD

FLOTATION

Flotation Date07/11/2025

BALLAST

TANKS

IdDescriptionCapacityLCGVCGSp.Wght Condition
Measurement Level
Sailing 1Fuel2000.8400105

INVENTORY

IdDescriptionWeight MsrmentWeight SailingLCGVCGGAIdDescriptionWeight MsrmentWeight SailingLCGVCGGA6Victron Smart 12,8/ 330 LiFePO42929 4Rocna 333333 1Foblight E2099 5chain 60m137137 2Victron Smart 12,8/ 330 LiFePO42929 3Victron Smart 12,8/ 330 LiFePO42929 12Liferaft Transocéan ISO 10P T1 >24 h7979 923 Bunk Cushions00 7Yanmar 3JH40-C200200 11AGM West Marine 55Ah1717 10AGM West Marine 55Ah1717 8Yanmar 3JH40-C200200

MAINSAIL

IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain 20252.702.994.315.456.1392.8716/11/2025

MIZZEN

IdMHBMUWMTWMHWMQWAreaMeas.DateComment

HEADSAIL

IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJib-20250.061.001.943.745.537.3918.05NoNo067.32

SYMMETRIC SPINNAKER

IdSLUSLESLSHWSFLAreaMeas.DateComment

ASYMMETRIC SPINNAKER

IdSLUSLESLSHWSFLRatioFTAreaMeas.DateCommentAspin-202522.2519.7521.0013.4013.7597%0235.7216/11/2025

MIZZEN STAYSAIL

IdYSHFYSHWYSFLAreaMeas.DateComment

QUADRILATERAL

IdQLEQHLQFLQCDQLMMastAreaMeas.DateComment