GRIOTTINE — ORC Rating

GPH

640.4

OSN

621.9

LOA

9.45 m

Displacement

2350 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.704

Medium

0.9676

High

1.1093

Triple Offshore

Low

0.9148

Medium

1.1923

High

1.3496

Boat Specifications

Dimensions

Length overall: 9.45 m
Beam: 2.49 m
Draft: 1.68 m
Displacement: 2350 kg
Crew weight: 522 kg
Wetted surface: 17.94 m²

Sails

Mainsail: 26.31 m²
Genoa: 20.6 m²
Spinnaker: 61.07 m²
Asymmetric spinnaker: 0 m²

Design

Type: SHAMROCK MK2 mod
Builder: KL NAUTIC
Designer: BRETECHET Gilles
Year built: 1991

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.

6,42.9,4.477553,52,5.07,60,5.39,75,5.63,90,5.55,110,5.59,120,5.41,135,4.85,138.7,4.645503,150,4.03
8,41.7,5.384134,52,6.07,60,6.34,75,6.54,90,6.6,110,6.69,120,6.57,135,6.05,148.3,5.195043,150,5.11
10,40.2,6.009458,52,6.63,60,6.81,75,6.96,90,7.07,110,7.24,120,7.14,135,6.82,149.3,6.16385,150,6.12
12,38.6,6.193056,52,6.86,60,7.06,75,7.29,90,7.35,110,7.77,120,7.72,135,7.31,150,6.83,157.5,6.526825
14,38.6,6.308216,52,6.94,60,7.17,75,7.58,90,7.75,110,8.19,120,8.35,135,7.88,150,7.28,180,6.63
16,38.7,6.355467,52,6.99,60,7.24,75,7.74,90,8.14,110,8.53,120,8.95,135,8.54,150,7.8,180,7.09
20,38.6,6.436172,52,7.1,60,7.38,75,7.87,90,8.59,110,9.11,120,9.77,135,10.28,150,9.07,180,8.04

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.07	5.39	5.63	5.55	5.59	5.41	4.85	4.03
8	6.07	6.34	6.54	6.6	6.69	6.57	6.05	5.11
10	6.63	6.81	6.96	7.07	7.24	7.14	6.82	6.12
12	6.86	7.06	7.29	7.35	7.77	7.72	7.31	6.83
14	6.94	7.17	7.58	7.75	8.19	8.35	7.88	7.28
16	6.99	7.24	7.74	8.14	8.53	8.95	8.54	7.8
20	7.1	7.38	7.87	8.59	9.11	9.77	10.28	9.07

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.28	138.7°	3.49
8	41.7°	4.02	148.3°	4.42
10	40.2°	4.59	149.3°	5.3
12	38.6°	4.84	157.5°	6.03
14	38.6°	4.93	180°	6.63
16	38.7°	4.96	180°	7.09
20	38.6°	5.03	180°	8.04

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