ORC SY Certificate for TAWERA

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	53.5°	52.6°	51.4°	49.9°	49.0°	48.2°	47.4°	48.2°
Beat VMG	2.54	3.33	4.01	4.51	4.88	5.13	5.49	5.54
52°	4.13	5.41	6.51	7.33	7.92	8.34	8.92	8.99
60°	5.08	6.59	7.75	8.55	9.06	9.42	9.82	10.02
75°	5.84	7.39	8.52	9.31	9.84	10.17	10.54	10.81
90°	6.20	7.84	8.94	9.57	10.07	10.49	11.05	11.30
110°	6.29	7.89	9.00	9.80	10.36	10.69	11.17	11.50
120°	5.89	7.49	8.70	9.61	10.27	10.77	11.43	11.81
135°	5.08	6.63	7.92	8.95	9.73	10.31	11.17	11.84
150°	4.21	5.52	6.68	7.66	8.52	9.30	10.45	11.27
Run VMG	3.64	4.78	5.78	6.64	7.38	8.17	9.51	10.49
Gybe Angles	139.0°	140.3°	141.6°	143.9°	148.2°	161.7°	166.4°	169.6°

BOAT

ClassDesignerHollandBuilderAlloy YachtAge date06/1995Series date06/1995Offset fileSY222.offData fileSY222OPF light | strong0.0% | 0.0%Owner-DriverYes

HULL

Length Overall28.030 mMaximum Beam6.346 mDynamic Allowance3.810%Age Allowance0.975%

LightshipSailingDisplacement (kg) 78,00482,746Draft (m) 3.2743.326RM at 1° (kg·m) 1773.71804.5 VCGD (m) 0.3460.388 VCGM (m) 0.4400.482DLR187.80SAup / Displ 20.05

SAIL AREAS (m²)

MeasuredRatedMainsail145.37145.37Mizzen62.8762.87Headsail Luffed163.14124.99Headsail FlyingSymmetricAsymmetric428.39428.39Mizzen Staysail with spinnaker75.5475.54Total upwind371.39Total downwind712.17

SAILS IN INVENTORY

Headsails Luffed1Headsails Flying0Spinnakers1

USE OF SAILS

Permanently Furled Sails0Furl to TackYesMainsail FurlerIn boomMultiple HeadsailsNoTacking Unfurling StaysailYes

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	1417.5	1079.9	898.2	798.1	737.9	701.5	655.7	650.2
52°	872.7	664.9	553.0	491.4	454.3	431.9	403.8	400.3
60°	708.8	546.6	464.6	421.3	397.3	382.1	366.7	359.3
75°	616.2	487.1	422.5	386.8	366.0	354.1	341.4	333.1
90°	580.6	459.4	402.7	376.2	357.4	343.1	325.9	318.5
110°	572.1	456.6	400.0	367.5	347.4	336.7	322.2	313.1
120°	611.5	480.9	413.6	374.7	350.6	334.2	315.0	304.8
135°	708.5	543.2	454.3	402.1	370.1	349.0	322.2	304.1
150°	856.0	651.9	539.2	469.8	422.4	387.2	344.6	319.5
Run VMG	988.5	752.7	622.7	542.4	487.8	440.5	378.5	343.2
Windward / Leeward	1203.0	916.3	760.4	670.3	612.8	571.0	517.1	496.7
All purpose	868.0	667.7	561.7	501.7	464.2	438.8	407.2	394.6

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	734.3	581.4	490.6	444.3	417.3
Time on Time	0.6809	0.8601	1.0191	1.1254	1.1980

Data in meters/kilograms (Metric)

HULL AND APPENDAGES (Lightship Trim)

ClassHull constructionSolidCarbon rudderNoTrim tabNoCharter ClassYesDirty hullNo

LOA28.030Max. Beam6.346Draft3.274Displacement78,004IMS L22.623Sink (kg/mm) 92.58

VCGD0.346VCGM0.440Righting Moment (kg·m) 1773.7SkegYes

PROPELLER (measured)

Propeller TypeFeathering 3 blades

InstallationShaft exposedTwin screwNoBow Thruster Diam.

PRD0.965PIPA0.0531

POWERED WINCHES

Halyard Speed (m/min)Sheet Speed (m/min)Spinnaker Sheet Speed (m/min)

SUPERSTRUCTURES

Area Front4.78Area Side9.57Dome frontal areas (m²)

RIG

Rig TypeKetchMast materialAluminumNon-circular riggingNoFiber riggingNoBelow deck spinnaker retrieverNo

P28.500IG31.710ISP31.800BAS2.380E8.920BDCPW4.600

MDT10.289MDL10.480MDT20.289MDL20.433TL5.700MW0.433GO0.485

J8.910SFJ0.920FSDSPLTPS9.050WPL

PY19.625IY22.394EB12.250BASY2.445EY5.600BDY

MDT1Y0.186MDL1Y0.312MDT2Y0.186MDL2Y0.230TLY

MAINSAIL

IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA0.251.673.065.437.32145.3728/01/2021MOD

MIZZEN

IdMHBMUWMTWMHWMQWAreaMeas.DateCommentB0.221.061.923.394.6062.8728/01/2021MOD

HEADSAIL

IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFurlerAreaMeas.DateCommentE0.181.332.635.348.1110.5930.49NoNoYes & TA163.1409/02/2021HWJD0.201.222.454.896.768.9027.00NoInnerNo124.9928/01/2021

SYMMETRIC SPINNAKER

IdSLUSLESLSHWSFLAreaMeas.DateComment

ASYMMETRIC SPINNAKER

IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA32.8029.7031.2516.4016.6598%428.3919/12/2018

MIZZEN STAYSAIL

IdYSHFYSHWYSFLUseAreaMeas.DateCommentA16.904.598.70Spinnaker75.5419/12/2018

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 this page, 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 onboard 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 last page of this 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 permitted to unfurl the staysail to tack while furling the other headsail.

Data in meters/kilograms (Metric)

BALLAST

TANKS

IdDescriptionCapacityLCGVCGSp.wght Level
sailing min Ltrs
min Level
sailing max Ltrs
max Awater 2 x1 6403,28010.08-0.201.000021.4%70221.3%699Bfuel 2 x 17003,40015.100.000.840027.3%92854.4%1,850Cfuel 2 x 10502,10018.37-0.350.840027.3%57365.2%1,369