ORC Certificate for B Nirvana

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	45.7°	45.7°	44.1°	44.1°	41.9°	40.8°	40.5°	40.0°	40.6°
Beat VMG	2.69	4.02	5.02	5.02	5.62	6.11	6.49	7.07	7.01
52°	4.35	6.32	7.74	7.71	8.47	9.14	9.78	10.73	10.73
60°	4.90	6.85	8.19	8.36	8.95	9.70	10.52	11.90	12.03
75°	5.59	7.34	8.60	9.66	9.53	10.53	11.85	14.95	15.65
90°	5.66	7.37	8.65	9.95	9.76	11.00	12.84	18.33	20.09
110°	5.12	7.03	8.53	9.78	11.42	13.85	15.68	15.42	20.95
120°	4.77	6.69	8.25	9.40	10.77	12.75	15.42	20.05	17.88
135°	3.97	5.81	7.45	8.61	9.64	10.90	12.62	17.10	22.05
150°	3.28	4.83	6.30	7.57	8.57	9.43	10.48	13.99	18.03
Run VMG	2.84	4.18	5.45	6.55	7.42	8.17	9.07	12.11	15.61
Gybe Angles	142.1°	142.1°	143.9°	148.3°	150.7°	149.2°	145.1°	136.8°	136.6°

MHR:443.6CertNo:MC141

BOAT

ClassGunboat48DesignerMorelli & MelvinBuilderGunboatAge date01/2007Series date01/2006Offset fileGB48.offData fileMC141-GB48-B Nirvana

HULL

Length Overall14.730Maximum Beam7.390Draft2.252Displacement10,293DLR3.3767Dynamic Allowance0.000%Age Allowance0.487%RSA0.000%

PROPELLER

InstallationShaft non exposedTypeFolding 3 bladesDiameter0.432m

CREW

Weight497(default)Crew Arm Extension

SAIL AREAS (m²)

MeasuredRatedMainsail87.3797.30Headsail Luffed36.4036.40Headsail Flying94.05SymmetricAsymmetric161.02

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	1338.1	896.1	717.2	717.7	640.3	589.6	554.4	508.9	513.8
52°	827.0	569.4	465.3	466.8	424.9	394.1	368.0	335.5	335.5
60°	734.0	525.4	439.4	430.6	402.3	371.1	342.2	302.5	299.2
75°	644.0	490.5	418.8	372.5	377.8	341.8	303.7	240.8	230.0
90°	636.5	488.3	416.4	361.8	368.8	327.4	280.4	196.4	179.2
110°	703.8	512.2	422.2	368.1	315.1	259.9	229.5	233.5	171.8
120°	754.5	538.0	436.3	383.1	334.4	282.3	233.4	179.6	201.3
135°	905.8	619.5	483.2	418.3	373.5	330.3	285.3	210.6	163.3
150°	1097.6	745.4	571.8	475.7	420.1	381.6	343.6	257.4	199.7
Run VMG	1267.5	860.7	660.2	549.3	484.9	440.6	396.7	297.2	230.6
Windward / Leeward	1308.0	878.4	688.7	633.5	562.6	515.1	475.6	403.1	372.2
All purpose	946.7	658.0	527.8	482.7	438.2	395.3	358.1	301.1	278.8

Single Number Scoring Options
Course	Time On Distance	Time On Time
Windward / Leeward	579.0	1.0363
All purpose	443.6	1.3526

Data in meters/kilograms (Metric)

HULL AND APPENDAGES (Lightship Trim)

ClassGunboat48Measurement14/01/2026HINGUN48005I607

LOA14.730Max. Beam7.390Draft2.252Displacement10,293Dspl lightship9,795Wetted area40.01

Superstructure frontal area14.82Superstructure lateral area30.54Default crew weight497Declared crew weightN/A

PROPELLER

Propeller TypeFolding 3 blades

InstallationShaft non exposedTwin screwYesHydro generatorNo

PRD0.432PBWPIPA0.0028

PSD0.025PHD0.070PHL0.136

PSA10.0°ESL0.010

RIG

Single headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders1Jumper StrutsNoRotating mastNoMast rake4°Mast cant angle0°

P17.890IG16.450ISP18.080MDT10.210MDL10.330MDT20.180MDL20.318TLMWGO

E6.870J4.980JZ1.900BAS1.490FSDFoilSFJ1.120SPLWPLTPS7.080BD

ForetrianglesIdITPTPZComment016.4504.9801.900main forestay018.0807.0801.900ISP/TPS117.4007.0402.140HSF

FLOTATION

Flotation Date11/01/2026

BALLAST

TANKS

IdDescriptionCapacityLCGVCGSp.Wght Condition
Measurement Level
Sailing 2Water Tank3801.000001Fuel Tank4920.8400303

INVENTORY

IdDescriptionWeight MsrmentWeight SailingLCGVCGGAIdDescriptionWeight MsrmentWeight SailingLCGVCGGA4Volvo Penta D240 Port189189 6Anchor Aluminium Fortress1010 822 Bunk Cushions4444 7Liferaft ISO Lalizas 12 Person5555 5Anchor Rocna Galvianised3030 3Volvo Penta D240 Starboard189189 2Victron AGM 12902727 1Victron SmartLithium HQ24123939

MAINSAIL

IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain2.552.803.835.126.0787.3710/11/2025leech 18.43

MIZZEN

IdMHBMUWMTWMHWMQWAreaMeas.DateComment

HEADSAIL

IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentHSF0.050.142.735.377.9310.4718.18No3194.0510/11/2025Jib0.070.621.172.193.254.2716.63NoNo036.4010/11/2025

SYMMETRIC SPINNAKER

IdSLUSLESLSHWSFLAreaMeas.DateComment

ASYMMETRIC SPINNAKER

IdSLUSLESLSHWSFLRatioFTAreaMeas.DateCommentASpin19.6517.7918.729.7212.7376%0161.0210/11/2025

MIZZEN STAYSAIL

IdYSHFYSHWYSFLAreaMeas.DateComment

QUADRILATERAL

IdQLEQHLQFLQCDQLMMastAreaMeas.DateComment