GRIOTTINE — ORC Rating

GPH

641.3

OSN

623.1

LOA

9.45 m

Displacement

2352 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6245

Medium

0.8574

High

0.9813

Triple Offshore

Low

0.8121

Medium

1.0582

High

1.1974

Boat Specifications

Dimensions

Length overall: 9.45 m
Beam: 2.49 m
Draft: 1.68 m
Displacement: 2352 kg
Crew weight: 522 kg
Wetted surface: 17.95 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.

6,43.5,4.508017,52,5.06,60,5.39,75,5.64,90,5.56,110,5.59,120,5.42,135,4.85,138.8,4.651689,150,4.04
8,42.4,5.416712,52,6.06,60,6.34,75,6.54,90,6.6,110,6.69,120,6.57,135,6.06,148,5.22376,150,5.11
10,40.5,6.009948,52,6.62,60,6.81,75,6.96,90,7.06,110,7.24,120,7.15,135,6.83,149.5,6.151138,150,6.12
12,39,6.189314,52,6.84,60,7.05,75,7.29,90,7.36,110,7.79,120,7.73,135,7.32,150,6.84,157.5,6.537649
14,39,6.292254,52,6.93,60,7.16,75,7.58,90,7.77,110,8.21,120,8.37,135,7.9,150,7.29,180,6.64
16,39,6.330857,52,6.97,60,7.23,75,7.74,90,8.16,110,8.54,120,8.98,135,8.57,150,7.82,180,7.09
20,39.4,6.444653,52,7.08,60,7.36,75,7.86,90,8.6,110,9.16,120,9.83,135,10.35,150,9.11,180,8.06

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.06	5.39	5.64	5.56	5.59	5.42	4.85	4.04
8	6.06	6.34	6.54	6.6	6.69	6.57	6.06	5.11
10	6.62	6.81	6.96	7.06	7.24	7.15	6.83	6.12
12	6.84	7.05	7.29	7.36	7.79	7.73	7.32	6.84
14	6.93	7.16	7.58	7.77	8.21	8.37	7.9	7.29
16	6.97	7.23	7.74	8.16	8.54	8.98	8.57	7.82
20	7.08	7.36	7.86	8.6	9.16	9.83	10.35	9.11

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.27	138.8°	3.5
8	42.4°	4	148°	4.43
10	40.5°	4.57	149.5°	5.3
12	39°	4.81	157.5°	6.04
14	39°	4.89	180°	6.64
16	39°	4.92	180°	7.09
20	39.4°	4.98	180°	8.06

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