Cosa Nostra — ORC Rating

GPH

617

OSN

598.6

LOA

9.55 m

Displacement

2870 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6667

Medium

0.8873

High

1.0078

Triple Offshore

Low

0.8545

Medium

1.0944

High

1.2341

Boat Specifications

Dimensions

Length overall: 9.55 m
Beam: 2.96 m
Draft: 2.09 m
Displacement: 2870 kg
Crew weight: 600 kg
Wetted surface: 20.78 m²

Sails

Mainsail: 32.83 m²
Genoa: 23.36 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 86.32 m²

Design

Type: GRAND SURPRISE
Builder: ARCHAMBAULT
Designer: JOUBERT-NIVELT
Year built: 1999

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.

6,42.9,4.805179,52,5.32,60,5.58,75,5.73,90,5.74,110,5.82,120,5.66,135,5.07,143.4,4.621225,150,4.29
8,40.4,5.607072,52,6.26,60,6.49,75,6.64,90,6.74,110,6.9,120,6.81,135,6.3,147.1,5.609681,150,5.44
10,38.6,6.103487,52,6.8,60,6.98,75,7.12,90,7.18,110,7.51,120,7.46,135,7.11,148.7,6.483636,150,6.4
12,37.6,6.310823,52,7.05,60,7.25,75,7.48,90,7.54,110,8,120,8.09,135,7.72,149.7,7.07671,150,7.05
14,37.2,6.427882,52,7.17,60,7.39,75,7.76,90,7.95,110,8.35,120,8.66,135,8.39,147.7,7.689925,150,7.51
16,37,6.498584,52,7.25,60,7.51,75,7.94,90,8.29,110,8.66,120,9.13,135,9.13,145.7,8.413042,150,8.02
20,37,6.586234,52,7.36,60,7.65,75,8.21,90,8.77,110,9.24,120,9.93,135,10.86,142.7,10.270613,150,9.43
24,39,6.665415,52,7.38,60,7.7,75,8.33,90,9.07,110,9.78,120,10.71,135,12.84,142.5,13.323193,150,12.2

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.32	5.58	5.73	5.74	5.82	5.66	5.07	4.29
8	6.26	6.49	6.64	6.74	6.9	6.81	6.3	5.44
10	6.8	6.98	7.12	7.18	7.51	7.46	7.11	6.4
12	7.05	7.25	7.48	7.54	8	8.09	7.72	7.05
14	7.17	7.39	7.76	7.95	8.35	8.66	8.39	7.51
16	7.25	7.51	7.94	8.29	8.66	9.13	9.13	8.02
20	7.36	7.65	8.21	8.77	9.24	9.93	10.86	9.43
24	7.38	7.7	8.33	9.07	9.78	10.71	12.84	12.2

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.52	143.4°	3.71
8	40.4°	4.27	147.1°	4.71
10	38.6°	4.77	148.7°	5.54
12	37.6°	5	149.7°	6.11
14	37.2°	5.12	147.7°	6.5
16	37°	5.19	145.7°	6.95
20	37°	5.26	142.7°	8.17
24	39°	5.18	142.5°	10.57

Loading polar chart…