OFF COURSE — ORC Rating

GPH

690.7

OSN

670.8

LOA

10 m

Displacement

4926 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6712

Medium

0.902

High

1.0311

Triple Offshore

Low

0.8563

Medium

1.1022

High

1.223

Boat Specifications

Dimensions

Length overall: 10 m
Beam: 3.41 m
Draft: 1.82 m
Displacement: 4926 kg
Crew weight: 537 kg
Wetted surface: 23 m²

Sails

Mainsail: 23.36 m²
Genoa: 36.58 m²
Spinnaker: 83.97 m²
Asymmetric spinnaker: 0 m²

Design

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

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.

6,41.8,4.212074,52,4.7,60,4.92,75,5.09,90,5.04,110,5.11,120,4.98,135,4.58,147.6,4.038715,150,3.94
8,40.3,4.8645,52,5.52,60,5.78,75,5.97,90,6,110,6.16,120,6.05,135,5.58,150,4.9,151.7,4.81557
10,41.1,5.546979,52,6.13,60,6.31,75,6.44,90,6.54,110,6.68,120,6.62,135,6.38,150,5.77,150.9,5.722315
12,40.3,5.874113,52,6.41,60,6.56,75,6.7,90,6.76,110,6.99,120,6.96,135,6.76,150,6.42,159.1,6.080039
14,39.4,5.965834,52,6.54,60,6.7,75,6.88,90,6.94,110,7.28,120,7.29,135,7.08,150,6.77,180,6.26
16,39,6.009167,52,6.59,60,6.77,75,7.02,90,7.14,110,7.47,120,7.61,135,7.42,150,7.06,180,6.65
20,39.5,6.013287,52,6.62,60,6.81,75,7.18,90,7.48,110,7.73,120,8.02,135,8.09,150,7.69,180,7.22

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.7	4.92	5.09	5.04	5.11	4.98	4.58	3.94
8	5.52	5.78	5.97	6	6.16	6.05	5.58	4.9
10	6.13	6.31	6.44	6.54	6.68	6.62	6.38	5.77
12	6.41	6.56	6.7	6.76	6.99	6.96	6.76	6.42
14	6.54	6.7	6.88	6.94	7.28	7.29	7.08	6.77
16	6.59	6.77	7.02	7.14	7.47	7.61	7.42	7.06
20	6.62	6.81	7.18	7.48	7.73	8.02	8.09	7.69

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	3.14	147.6°	3.41
8	40.3°	3.71	151.7°	4.24
10	41.1°	4.18	150.9°	5
12	40.3°	4.48	159.1°	5.68
14	39.4°	4.61	180°	6.26
16	39°	4.67	180°	6.65
20	39.5°	4.64	180°	7.22

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