GRIOTTINE — ORC Rating

GPH

642.5

OSN

622.3

LOA

9.45 m

Displacement

2351 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6278

Medium

0.8592

High

0.9872

Triple Offshore

Low

0.8122

Medium

1.0557

High

1.192

Boat Specifications

Dimensions

Length overall: 9.45 m
Beam: 2.49 m
Draft: 1.68 m
Displacement: 2351 kg
Crew weight: 519 kg
Wetted surface: 17.98 m²

Sails

Mainsail: 26.34 m²
Genoa: 20.59 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.

6,43.8,4.641431,52,5.14,60,5.43,75,5.61,90,5.48,110,5.53,120,5.36,135,4.79,138.2,4.601087,150,3.96
8,41.5,5.474289,52,6.09,60,6.33,75,6.48,90,6.5,110,6.62,120,6.48,135,5.96,147.6,5.199402,150,5.06
10,39.4,5.978775,52,6.62,60,6.79,75,6.93,90,7,110,7.2,120,7.11,135,6.76,150,6.05,150.1,6.044549
12,38.1,6.175859,52,6.86,60,7.06,75,7.27,90,7.31,110,7.68,120,7.64,135,7.28,150,6.79,156.9,6.501261
14,38.2,6.311582,52,6.98,60,7.2,75,7.53,90,7.66,110,8.07,120,8.17,135,7.8,150,7.27,170.9,6.643618
16,38,6.383162,52,7.06,60,7.3,75,7.7,90,7.98,110,8.36,120,8.69,135,8.38,150,7.75,176.8,7.050994
20,38.4,6.456606,52,7.14,60,7.42,75,7.92,90,8.43,110,8.9,120,9.54,135,9.94,150,8.9,175.8,7.951354
24,40.1,6.484326,52,7.13,60,7.44,75,8.02,90,8.71,110,9.31,120,10.39,135,12.6,142.7,12.118569,150,11.13

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.14	5.43	5.61	5.48	5.53	5.36	4.79	3.96
8	6.09	6.33	6.48	6.5	6.62	6.48	5.96	5.06
10	6.62	6.79	6.93	7	7.2	7.11	6.76	6.05
12	6.86	7.06	7.27	7.31	7.68	7.64	7.28	6.79
14	6.98	7.2	7.53	7.66	8.07	8.17	7.8	7.27
16	7.06	7.3	7.7	7.98	8.36	8.69	8.38	7.75
20	7.14	7.42	7.92	8.43	8.9	9.54	9.94	8.9
24	7.13	7.44	8.02	8.71	9.31	10.39	12.6	11.13

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	3.35	138.2°	3.43
8	41.5°	4.1	147.6°	4.39
10	39.4°	4.62	150.1°	5.24
12	38.1°	4.86	156.9°	5.98
14	38.2°	4.96	170.9°	6.56
16	38°	5.03	176.8°	7.04
20	38.4°	5.06	175.8°	7.93
24	40.1°	4.96	142.7°	9.64

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