COUNTERPOINT — ORC Rating

GPH

605.6

OSN

587.7

LOA

12.91 m

Displacement

9265 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6839

Medium

0.9156

High

1.0482

Triple Offshore

Low

0.8737

Medium

1.1154

High

1.2329

Boat Specifications

Dimensions

Length overall: 12.91 m
Beam: 4.05 m
Draft: 2.35 m
Displacement: 9265 kg
Crew weight: 750 kg
Wetted surface: 36 m²

Sails

Mainsail: 41 m²
Genoa: 67.42 m²
Spinnaker: 141.4 m²
Asymmetric spinnaker: 0 m²

Design

Type: Serendipity 43
Builder: New Oleans Marine
Designer: Doug Peterson
Year built: 1981
Stability index: 123.5

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.

6,42,5.059579,52,5.66,60,5.91,75,6.05,90,5.92,110,5.66,120,5.53,135,5.02,144.2,4.524921,150,4.24
8,40.2,5.904718,52,6.59,60,6.79,75,6.9,90,6.83,110,6.81,120,6.69,135,6.2,149.3,5.419536,150,5.38
10,39,6.42093,52,7.11,60,7.27,75,7.38,90,7.36,110,7.47,120,7.41,135,7.07,150,6.36,151.4,6.275748
12,38.1,6.63333,52,7.33,60,7.5,75,7.65,90,7.68,110,7.83,120,7.83,135,7.61,150,7.12,156.8,6.799869
14,37.2,6.716634,52,7.44,60,7.61,75,7.82,90,7.91,110,8.1,120,8.16,135,7.99,150,7.61,165.8,7.065896
16,37,6.786575,52,7.51,60,7.69,75,7.93,90,8.09,110,8.28,120,8.44,135,8.34,150,7.97,176.6,7.382995
20,37,6.874225,52,7.58,60,7.76,75,8.08,90,8.35,110,8.56,120,8.88,135,9.02,150,8.64,179,8.081231

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.66	5.91	6.05	5.92	5.66	5.53	5.02	4.24
8	6.59	6.79	6.9	6.83	6.81	6.69	6.2	5.38
10	7.11	7.27	7.38	7.36	7.47	7.41	7.07	6.36
12	7.33	7.5	7.65	7.68	7.83	7.83	7.61	7.12
14	7.44	7.61	7.82	7.91	8.1	8.16	7.99	7.61
16	7.51	7.69	7.93	8.09	8.28	8.44	8.34	7.97
20	7.58	7.76	8.08	8.35	8.56	8.88	9.02	8.64

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.76	144.2°	3.67
8	40.2°	4.51	149.3°	4.66
10	39°	4.99	151.4°	5.51
12	38.1°	5.22	156.8°	6.25
14	37.2°	5.35	165.8°	6.85
16	37°	5.42	176.6°	7.37
20	37°	5.49	179°	8.08

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