OFF COURSE — ORC Rating

GPH

694.7

OSN

674.4

LOA

10 m

Displacement

4927 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6019

Medium

0.7989

High

0.9023

Triple Offshore

Low

0.7657

Medium

0.971

High

1.0653

Boat Specifications

Dimensions

Length overall: 10 m
Beam: 3.41 m
Draft: 1.82 m
Displacement: 4927 kg
Crew weight: 360 kg
Wetted surface: 22.62 m²

Sails

Mainsail: 23.07 m²
Genoa: 36.58 m²
Spinnaker: 84.59 m²
Asymmetric spinnaker: 0 m²

Design

Type: CARTER 3/4 TON
Builder: N.Shore Yachts
Designer: CARTER
Year built: 1974
Stability index: 113.9

Velocity Prediction

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into WX Navigator or compatible navigation software.

6,42.3,4.326481,52,4.82,60,5.03,75,5.16,90,5.06,110,5.11,120,4.98,135,4.55,146.9,4.010893,150,3.88
8,40.5,5.023632,52,5.6,60,5.8,75,5.94,90,5.89,110,6.07,120,5.99,135,5.57,150,4.9,151.1,4.843143
10,39.4,5.461132,52,6.07,60,6.23,75,6.36,90,6.37,110,6.58,120,6.56,135,6.32,150,5.76,152.9,5.616635
12,39.4,5.707012,52,6.29,60,6.46,75,6.61,90,6.65,110,6.88,120,6.91,135,6.74,150,6.38,160.4,6.018741
14,38.8,5.774132,52,6.39,60,6.57,75,6.77,90,6.86,110,7.1,120,7.18,135,7.07,150,6.76,173.6,6.238881
16,38.7,5.830116,52,6.45,60,6.63,75,6.88,90,7.02,110,7.24,120,7.42,135,7.38,150,7.07,177.2,6.617901
20,39,5.867624,52,6.48,60,6.68,75,6.98,90,7.25,110,7.48,120,7.78,135,8,150,7.67,179,7.201097

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.82	5.03	5.16	5.06	5.11	4.98	4.55	3.88
8	5.6	5.8	5.94	5.89	6.07	5.99	5.57	4.9
10	6.07	6.23	6.36	6.37	6.58	6.56	6.32	5.76
12	6.29	6.46	6.61	6.65	6.88	6.91	6.74	6.38
14	6.39	6.57	6.77	6.86	7.1	7.18	7.07	6.76
16	6.45	6.63	6.88	7.02	7.24	7.42	7.38	7.07
20	6.48	6.68	6.98	7.25	7.48	7.78	8	7.67

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.3°	3.2	146.9°	3.36
8	40.5°	3.82	151.1°	4.24
10	39.4°	4.22	152.9°	5
12	39.4°	4.41	160.4°	5.67
14	38.8°	4.5	173.6°	6.2
16	38.7°	4.55	177.2°	6.61
20	39°	4.56	179°	7.2

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