ORC Certificate for ZIG ZAG

Rated boat velocities in knots
Wind Velocity at 10 meters	6 kt	8 kt	10 kt	12 kt	14 kt	16 kt	20 kt	24 kt
Beat Angles	52.0°	50.8°	49.6°	48.8°	47.2°	46.8°	45.6°	45.3°
Beat VMG	2.71	3.54	4.22	4.73	5.08	5.35	5.71	5.85
52°	4.40	5.73	6.79	7.57	8.06	8.41	8.84	9.04
60°	5.00	6.39	7.44	8.19	8.70	9.00	9.38	9.59
75°	5.57	6.97	8.11	8.99	9.49	9.79	10.12	10.24
90°	6.05	7.66	8.82	9.61	10.07	10.34	10.69	10.92
110°	6.08	7.63	8.77	9.59	10.18	10.64	11.24	11.57
120°	5.72	7.28	8.47	9.35	10.00	10.50	11.26	11.85
135°	4.93	6.41	7.65	8.64	9.40	9.98	10.84	11.51
150°	4.06	5.32	6.42	7.50	8.42	9.18	10.30	11.10
Run VMG	3.51	4.61	5.65	6.71	7.68	8.55	9.90	10.84
Gybe Angles	138.3°	140.1°	180.0°	180.0°	180.0°	180.0°	180.0°	180.0°

BOAT

ClassOyster 82DesignerHumphreysBuilderOysterAge date01/2007Series date01/1993Offset fileSY096.offData fileSY096OPF light | strong0.0% | 0.0%

HULL

Length Overall24.380 mMaximum Beam6.324 mDynamic Allowance2.690%Age Allowance0.975%

LightshipSailingDisplacement (kg)62,20569,009Draft (m)3.1833.265RM at 1° (kg·m)1763.21899.4VCGD (m)0.3810.393VCGM (m)0.3340.346DLR181.54SAup / Displ 18.78

SAIL AREAS (m²)

MeasuredRatedMainsail137.60137.60Headsail Luffed161.3155.55Headsail FlyingSymmetricAsymmetric353.23353.23Total upwind298.91Total downwind490.83

SAILS IN INVENTORY

Headsails Luffed1Headsails Flying0Spinnakers1

USE OF SAILS

Furled Sails1Mainsail FurlerIn mastMultiple HeadsailsNoTacking Unfurling StaysailNo * Spinnaker pole aboard

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 SY 402.

Time Allowances in secs/NM
Selected Courses
Wind Velocity at 10 meters	6 kt	8 kt	10 kt	12 kt	14 kt	16 kt	20 kt	24 kt
Beat VMG	1328.0	1018.3	852.7	760.4	708.9	672.7	630.8	615.2
52°	817.6	628.7	529.8	475.5	446.5	428.2	407.3	398.5
60°	719.5	563.7	484.0	439.5	413.6	399.8	383.8	375.4
75°	645.8	516.6	443.8	400.2	379.4	367.6	355.7	351.6
90°	594.9	469.8	408.0	374.6	357.5	348.3	336.6	329.7
110°	592.4	471.6	410.6	375.5	353.5	338.2	320.4	311.2
120°	629.2	494.5	424.9	384.9	359.9	342.8	319.8	303.9
135°	730.9	561.5	470.4	416.7	383.1	360.8	332.1	312.8
150°	887.3	676.4	560.7	480.2	427.7	392.3	349.5	324.4
Run VMG	1024.6	781.1	637.6	536.9	468.6	421.1	363.6	332.2
Windward / Leeward	1176.3	899.7	745.2	648.7	588.8	546.9	497.2	473.7
All purpose	859.9	665.2	560.7	497.9	460.3	435.1	405.1	390.1

Scoring Options
Wind Velocity at 10 meters	Light TWS < 8	Light-Moderate 8 ≤ TWS < 11	Moderate 11 ≤ TWS < 14	Moderate-Strong 14 ≤ TWS < 17	Strong TWS ≥ 17
Time on Distance	730.0	580.6	486.5	440.5	414.5
Time on Time	0.6849	0.8612	1.0276	1.1350	1.2063

Data in meters/kilograms (Metric)

HULL AND APPENDAGES (Lightship Trim)

ClassOyster 82Hull constructionSolidCarbon rudderNoTrim tabNoMCA CertifiedNo

LOA24.380Max. Beam6.324Draft3.183Displacement62,205IMS L21.218Sink (kg/mm) 83.63

VCGD0.381VCGM0.334Righting Moment (kg·m) 1763.2SkegYes

PROPELLER (measured)

Propeller TypeFeathering 3 blades

InstallationShaft exposedTwin screwNoBow Thruster Diam.

PRD0.890PIPA0.0393

POWERED WINCHES

Halyard Power (KW)Halyard Speed (m/min)52.8Sheet Power (KW)Sheet Speed (m/min)63.0Spinnaker Sheet Speed (m/min)63.0

SUPERSTRUCTURES

Area Front4.15Area Side7.81Dome frontal areas (m²)

RIG

Rig TypeSloopMast materialAluminumNon-circular riggingNoFiber riggingNo

P27.000IG30.270ISP30.570BAS2.950E9.900BDCPW5.268

MDT10.300MDL10.565MDT20.300MDL20.565TLMW0.565GO0.565

J8.850SFJ0.250FSDSPL8.850TPS9.100WPL

BALLAST

TANKS

IdDescriptionCapacityLCGVCGSp.WghtLevel
SailingCondition
SailingAfuel 2x16003,2009.39-0.540.840075.0%2400Bwater1,03016.23-0.691.000075.0%773Cwater1,03017.93-0.641.000075.0%773

INVENTORY

IdDescriptionWeight SailingLCGVCGGAIdDescriptionWeight SailingLCGVCGGAAanchor #1661.202.30 X Bchain #15283.490.51 X Canchor #2303.490.51 X Dchain #2613.490.51 X

INVENTORY

Fixed Ballast Total0

TANKSIdDescriptionSp.WghtCapacityConditionLCGVCGAfuel 2x1600Fuel3,20009.39-0.54BwaterWater1,030016.23-0.69CwaterWater1,030017.93-0.64Total deductible0

OTHER ITEMSIdKindDescriptionWeightLCGVCGADeductibleanchor #11.202.30BDeductiblechain #13.490.51CDeductibleanchor #23.490.51DDeductiblechain #23.490.51Total deductible

MAINSAIL

IdMHBMUWMTWMHWMQWAreaMeas.DateCommentB0.051.352.655.187.58137.6025/02/2020

MIZZEN

IdMHBMUWMTWMHWMQWAreaMeas.DateComment

HEADSAIL

IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFurlerAreaMeas.DateCommentC0.091.252.525.338.3511.5429.20NoNoYes & TA161.3125/02/2020B0.080.601.252.533.855.4021.40NoNoYes55.55D5.1221.18NoInnerYes55.2026/01/2023staysail

SYMMETRIC SPINNAKER

IdSLUSLESLSHWSFLAreaMeas.DateComment

ASYMMETRIC SPINNAKER

IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA30.8028.9029.8514.2014.20100%353.23

MIZZEN STAYSAIL

IdYSHFYSHWYSFLUseAreaMeas.DateComment

QUADRILATERAL

IdQLEQHLQFLQCDQLMMastAreaMeas.DateComment

All the sails used during an event must be declared. This applies also to the staysails tacked between the forestay and the mast and to all the sails that are smaller than the largest of their kind.
The sails that can be used during the event are only those listed in the fourth page of the certificate, regardless of the fact that other available sails are smaller than the largest of their kind listed on the certificate.
While it is not mandatory to carry all the declared sails while racing, the number of sails on board shall remain constant for each individual race day. The race day begins when the yacht leaves for the race course from its dock or mooring.
The minimum amount of liquids to carry onboard while racing is shown on the third page of the certificate as a fraction of one, under the sailing level column. The lowest number printed on the certificate is 0.100 also when the declared amount is zero.
It is mandatory to race with 1 headsail(s) always furled (see ORCSY rule 204.5)
It is NOT permitted to unfurl the staysail to tack while furling the other headsail