SOMOS GRAU — ORC Rating

GPH

586.3

OSN

571.2

LOA

10.9 m

Displacement

3835 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7086

Medium

0.9339

High

1.0644

Triple Offshore

Low

0.9125

Medium

1.145

High

1.279

Boat Specifications

Dimensions

Length overall: 10.9 m
Beam: 3.61 m
Draft: 2.25 m
Displacement: 3835 kg
Crew weight: 560 kg
Wetted surface: 23.8 m²

Sails

Mainsail: 41.24 m²
Genoa: 37.67 m²
Spinnaker: 75.09 m²
Asymmetric spinnaker: 0 m²

Design

Type: MUMM 36
Builder: AST. DEL SUR
Designer: BRUCE FARR
Year built: 1992
Stability index: 111.3

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.

6,41.8,5.459599,52,6.11,60,6.38,75,6.54,90,6.42,110,5.93,120,5.71,135,5.07,140.6,4.723491,150,4.22
8,39.4,6.250537,52,6.96,60,7.15,75,7.26,90,7.21,110,7.07,120,6.91,135,6.32,146.9,5.562726,150,5.38
10,37.6,6.525391,52,7.27,60,7.47,75,7.65,90,7.67,110,7.68,120,7.57,135,7.16,150,6.41,151.4,6.332697
12,37,6.673883,52,7.42,60,7.63,75,7.92,90,8.06,110,8.18,120,8.12,135,7.71,150,7.17,157.7,6.820075
14,36.9,6.790177,52,7.52,60,7.74,75,8.09,90,8.38,110,8.6,120,8.67,135,8.25,150,7.69,170,7.057215
16,36.6,6.838416,52,7.58,60,7.82,75,8.22,90,8.62,110,8.92,120,9.24,135,8.85,150,8.2,177.2,7.488941
20,37,6.899267,52,7.64,60,7.92,75,8.4,90,8.96,110,9.51,120,10.18,135,10.41,150,9.41,176.6,8.434847

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.11	6.38	6.54	6.42	5.93	5.71	5.07	4.22
8	6.96	7.15	7.26	7.21	7.07	6.91	6.32	5.38
10	7.27	7.47	7.65	7.67	7.68	7.57	7.16	6.41
12	7.42	7.63	7.92	8.06	8.18	8.12	7.71	7.17
14	7.52	7.74	8.09	8.38	8.6	8.67	8.25	7.69
16	7.58	7.82	8.22	8.62	8.92	9.24	8.85	8.2
20	7.64	7.92	8.4	8.96	9.51	10.18	10.41	9.41

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	4.07	140.6°	3.65
8	39.4°	4.83	146.9°	4.66
10	37.6°	5.17	151.4°	5.56
12	37°	5.33	157.7°	6.31
14	36.9°	5.43	170°	6.95
16	36.6°	5.49	177.2°	7.48
20	37°	5.51	176.6°	8.42

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