Muskrat — ORC Rating | RegattaPages

GPH

589.5

OSN

573.9

LOA

10.57 m

Displacement

3673 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7171

Medium

0.9293

High

1.042

Triple Offshore

Low

0.9143

Medium

1.136

High

1.2601

Boat Specifications

Dimensions

Length overall: 10.57 m
Beam: 3.35 m
Draft: 2.17 m
Displacement: 3673 kg
Crew weight: 630 kg
Wetted surface: 23.38 m²

Sails

Mainsail: 36.07 m²
Genoa: 41.76 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 88.45 m²

Design

Type: J 105 Mod
Builder: TPI
Designer: Johnstone
Year built: 1995
Stability index: 105.9

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.

6,41.8,5.379113,52,5.99,60,6.25,75,6.38,90,6.23,110,5.97,120,5.79,135,5.2,143.3,4.73948,150,4.39
8,39,6.150711,52,6.84,60,7.01,75,7.1,90,7.04,110,7.05,120,6.92,135,6.41,146.9,5.741784,150,5.55
10,37,6.46102,52,7.17,60,7.33,75,7.48,90,7.48,110,7.63,120,7.56,135,7.2,149.6,6.539027,150,6.52
12,35.8,6.583946,52,7.32,60,7.5,75,7.74,90,7.83,110,8.09,120,8.09,135,7.75,150,7.15,150.5,7.112035
14,35.4,6.686068,52,7.42,60,7.61,75,7.91,90,8.12,110,8.46,120,8.61,135,8.32,149.6,7.594083,150,7.56
16,35.1,6.759154,52,7.49,60,7.7,75,8.04,90,8.35,110,8.75,120,9.13,135,8.92,150,7.96,174.8,7.069094
20,35.1,6.83249,52,7.58,60,7.81,75,8.21,90,8.64,110,9.32,120,10.06,135,10.65,142.6,9.894078,150,9.07

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.99	6.25	6.38	6.23	5.97	5.79	5.2	4.39
8	6.84	7.01	7.1	7.04	7.05	6.92	6.41	5.55
10	7.17	7.33	7.48	7.48	7.63	7.56	7.2	6.52
12	7.32	7.5	7.74	7.83	8.09	8.09	7.75	7.15
14	7.42	7.61	7.91	8.12	8.46	8.61	8.32	7.56
16	7.49	7.7	8.04	8.35	8.75	9.13	8.92	7.96
20	7.58	7.81	8.21	8.64	9.32	10.06	10.65	9.07

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	4.01	143.3°	3.8
8	39°	4.78	146.9°	4.81
10	37°	5.16	149.6°	5.64
12	35.8°	5.34	150.5°	6.19
14	35.4°	5.45	149.6°	6.55
16	35.1°	5.53	174.8°	7.04
20	35.1°	5.59	142.6°	7.86

Loading polar chart…