GRIOTTINE — ORC Rating

GPH

645.4

OSN

625.4

LOA

9.45 m

Displacement

2351 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6162

Medium

0.8542

High

0.9832

Triple Offshore

Low

0.8021

Medium

1.054

High

1.1966

Boat Specifications

Dimensions

Length overall: 9.45 m
Beam: 2.49 m
Draft: 1.68 m
Displacement: 2351 kg
Crew weight: 522 kg
Wetted surface: 17.85 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
Stability index: 114.9

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.

6,43.5,4.439087,52,4.98,60,5.3,75,5.54,90,5.48,110,5.53,120,5.35,135,4.8,138.5,4.593062,150,3.97
8,42.4,5.362545,52,6,60,6.29,75,6.5,90,6.57,110,6.66,120,6.53,135,5.99,148.4,5.154234,150,5.07
10,40.8,5.997397,52,6.6,60,6.78,75,6.93,90,7.05,110,7.22,120,7.13,135,6.8,149.3,6.12896,150,6.08
12,39,6.189314,52,6.84,60,7.04,75,7.27,90,7.32,110,7.76,120,7.7,135,7.29,150,6.82,157.4,6.531557
14,39,6.317989,52,6.94,60,7.17,75,7.57,90,7.74,110,8.19,120,8.34,135,7.87,150,7.28,171.8,6.668174
16,38.8,6.351545,52,6.98,60,7.24,75,7.74,90,8.14,110,8.51,120,8.95,135,8.54,150,7.81,177.2,7.068439
20,39,6.472401,52,7.1,60,7.38,75,7.9,90,8.62,110,9.33,120,9.79,135,10.29,150,9.1,173.6,8.060232

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.98	5.3	5.54	5.48	5.53	5.35	4.8	3.97
8	6	6.29	6.5	6.57	6.66	6.53	5.99	5.07
10	6.6	6.78	6.93	7.05	7.22	7.13	6.8	6.08
12	6.84	7.04	7.27	7.32	7.76	7.7	7.29	6.82
14	6.94	7.17	7.57	7.74	8.19	8.34	7.87	7.28
16	6.98	7.24	7.74	8.14	8.51	8.95	8.54	7.81
20	7.1	7.38	7.9	8.62	9.33	9.79	10.29	9.1

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.22	138.5°	3.44
8	42.4°	3.96	148.4°	4.39
10	40.8°	4.54	149.3°	5.27
12	39°	4.81	157.4°	6.03
14	39°	4.91	171.8°	6.6
16	38.8°	4.95	177.2°	7.06
20	39°	5.03	173.6°	8.01

Loading polar chart…