GAMBERETTO — ORC Rating

GPH

686.1

OSN

665.5

LOA

7.64 m

Displacement

1286 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5981

Medium

0.8077

High

0.9165

Triple Offshore

Low

0.7687

Medium

0.9825

High

1.112

Boat Specifications

Dimensions

Length overall: 7.64 m
Beam: 2.38 m
Draft: 1.58 m
Displacement: 1286 kg
Crew weight: 400 kg
Wetted surface: 13.13 m²

Sails

Mainsail: 19.07 m²
Genoa: 17.05 m²
Spinnaker: 41.15 m²
Asymmetric spinnaker: 0 m²

Design

Type: SURPRISE
Builder: Archambault
Designer: JOUBERT-NIVELT
Year built: 1977

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.

6,42,4.346394,52,4.89,60,5.15,75,5.34,90,5.27,110,5.21,120,5.04,135,4.51,147,3.899028,150,3.78
8,40.5,5.115688,52,5.71,60,5.88,75,6,90,6.04,110,6.08,120,5.98,135,5.5,150,4.77,151,4.722052
10,38.2,5.573534,52,6.1,60,6.23,75,6.35,90,6.48,110,6.58,120,6.48,135,6.18,150,5.63,153,5.499399
12,36.8,5.719771,52,6.29,60,6.47,75,6.7,90,6.79,110,7.15,120,7.03,135,6.64,150,6.22,171,5.669805
14,36,5.747716,52,6.37,60,6.6,75,6.99,90,7.16,110,7.68,120,7.66,135,7.17,150,6.64,180,6.12
16,36,5.772437,52,6.41,60,6.67,75,7.14,90,7.54,110,8.06,120,8.37,135,7.8,150,7.13,180,6.51
20,36.8,5.794702,52,6.43,60,6.7,75,7.27,90,7.96,110,8.75,120,9.51,135,9.54,150,8.35,180,7.44

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.89	5.15	5.34	5.27	5.21	5.04	4.51	3.78
8	5.71	5.88	6	6.04	6.08	5.98	5.5	4.77
10	6.1	6.23	6.35	6.48	6.58	6.48	6.18	5.63
12	6.29	6.47	6.7	6.79	7.15	7.03	6.64	6.22
14	6.37	6.6	6.99	7.16	7.68	7.66	7.17	6.64
16	6.41	6.67	7.14	7.54	8.06	8.37	7.8	7.13
20	6.43	6.7	7.27	7.96	8.75	9.51	9.54	8.35

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.23	147°	3.27
8	40.5°	3.89	151°	4.13
10	38.2°	4.38	153°	4.9
12	36.8°	4.58	171°	5.6
14	36°	4.65	180°	6.12
16	36°	4.67	180°	6.51
20	36.8°	4.64	180°	7.44

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