SOMOS GRAU — ORC Rating

GPH

590.5

OSN

574.9

LOA

10.9 m

Displacement

3835 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.694

Medium

0.9267

High

1.0571

Triple Offshore

Low

0.8988

Medium

1.1412

High

1.2789

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.

6,42.4,5.240669,52,5.88,60,6.2,75,6.46,90,6.38,110,5.91,120,5.69,135,5.06,140.8,4.710015,150,4.22
8,40.8,6.195549,52,6.89,60,7.1,75,7.24,90,7.23,110,7.1,120,6.94,135,6.31,147.5,5.513454,150,5.36
10,38.8,6.544016,52,7.25,60,7.44,75,7.64,90,7.66,110,7.69,120,7.57,135,7.19,150,6.41,150.2,6.395737
12,38.2,6.706056,52,7.38,60,7.6,75,7.94,90,8.1,110,8.25,120,8.14,135,7.7,150,7.19,157,6.876661
14,37.6,6.765203,52,7.46,60,7.7,75,8.14,90,8.49,110,8.72,120,8.79,135,8.27,150,7.68,170,7.067369
16,37.5,6.793946,52,7.5,60,7.76,75,8.27,90,8.78,110,9.04,120,9.44,135,8.91,150,8.21,177.2,7.478929
20,37.5,6.894784,52,7.62,60,7.92,75,8.41,90,9.1,110,9.67,120,10.3,135,10.56,150,9.47,175.4,8.467274

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.88	6.2	6.46	6.38	5.91	5.69	5.06	4.22
8	6.89	7.1	7.24	7.23	7.1	6.94	6.31	5.36
10	7.25	7.44	7.64	7.66	7.69	7.57	7.19	6.41
12	7.38	7.6	7.94	8.1	8.25	8.14	7.7	7.19
14	7.46	7.7	8.14	8.49	8.72	8.79	8.27	7.68
16	7.5	7.76	8.27	8.78	9.04	9.44	8.91	8.21
20	7.62	7.92	8.41	9.1	9.67	10.3	10.56	9.47

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.87	140.8°	3.65
8	40.8°	4.69	147.5°	4.65
10	38.8°	5.1	150.2°	5.55
12	38.2°	5.27	157°	6.33
14	37.6°	5.36	170°	6.96
16	37.5°	5.39	177.2°	7.47
20	37.5°	5.47	175.4°	8.44

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