STARS & STRIPES — ORC Rating

GPH

593.4

OSN

579.5

LOA

12.701 m

Displacement

6509 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7162

Medium

0.9275

High

1.0427

Triple Offshore

Low

0.9143

Medium

1.127

High

1.23

Boat Specifications

Dimensions

Length overall: 12.701 m
Beam: 3.9 m
Draft: 2.29 m
Displacement: 6509 kg
Crew weight: 735 kg
Wetted surface: 29.71 m²

Sails

Mainsail: 43.53 m²
Genoa: 60.46 m²
Spinnaker: 128.71 m²
Asymmetric spinnaker: 0 m²

Design

Type: NM 40
Builder: Cookson
Designer: Nelson Marek
Year built: 1984
Stability index: 108.9

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.

6,41.8,5.379113,52,6.01,60,6.27,75,6.45,90,6.33,110,5.9,120,5.77,135,5.23,141.5,4.881114,150,4.42
8,39.4,6.095244,52,6.81,60,7,75,7.13,90,7.09,110,6.98,120,6.89,135,6.42,148.7,5.629294,150,5.56
10,38.2,6.413381,52,7.14,60,7.32,75,7.48,90,7.5,110,7.52,120,7.5,135,7.21,150,6.54,152,6.432998
12,37.5,6.554457,52,7.28,60,7.46,75,7.68,90,7.77,110,7.85,120,7.9,135,7.7,150,7.24,158.2,6.882173
14,37.2,6.628753,52,7.36,60,7.55,75,7.8,90,7.99,110,8.08,120,8.23,135,8.1,150,7.69,170,7.077523
16,37.2,6.691525,52,7.41,60,7.6,75,7.89,90,8.14,110,8.26,120,8.51,135,8.49,150,8.08,177.2,7.458905
20,37.8,6.770823,52,7.46,60,7.67,75,8,90,8.34,110,8.56,120,8.92,135,9.33,150,8.88,178.1,8.204511

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.01	6.27	6.45	6.33	5.9	5.77	5.23	4.42
8	6.81	7	7.13	7.09	6.98	6.89	6.42	5.56
10	7.14	7.32	7.48	7.5	7.52	7.5	7.21	6.54
12	7.28	7.46	7.68	7.77	7.85	7.9	7.7	7.24
14	7.36	7.55	7.8	7.99	8.08	8.23	8.1	7.69
16	7.41	7.6	7.89	8.14	8.26	8.51	8.49	8.08
20	7.46	7.67	8	8.34	8.56	8.92	9.33	8.88

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	4.01	141.5°	3.82
8	39.4°	4.71	148.7°	4.81
10	38.2°	5.04	152°	5.68
12	37.5°	5.2	158.2°	6.39
14	37.2°	5.28	170°	6.97
16	37.2°	5.33	177.2°	7.45
20	37.8°	5.35	178.1°	8.2

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