SOS MAR MENOR — ORC Rating

GPH

732.5

OSN

711

LOA

7 m

Displacement

940 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5529

Medium

0.7481

High

0.8485

Triple Offshore

Low

0.7139

Medium

0.9227

High

1.0541

Boat Specifications

Dimensions

Length overall: 7 m
Beam: 2.38 m
Draft: 1.19 m
Displacement: 940 kg
Crew weight: 295 kg
Wetted surface: 10.85 m²

Sails

Mainsail: 17.91 m²
Genoa: 9.09 m²
Spinnaker: 24.75 m²
Asymmetric spinnaker: 0 m²

Design

Type: SONAR 23
Builder: SONAR (UK) LDT
Designer: KIRBY
Year built: 1979

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.

6,43.1,3.903242,52,4.37,60,4.66,75,4.88,90,4.98,110,4.96,120,4.78,135,4.31,148,3.737996,150,3.66
8,42,4.628977,52,5.18,60,5.45,75,5.62,90,5.78,110,5.79,120,5.67,135,5.27,150,4.63,152,4.541606
10,41.6,5.148449,52,5.65,60,5.83,75,5.99,90,6.27,110,6.31,120,6.19,135,5.86,150,5.44,156,5.210469
12,40.1,5.412321,52,5.92,60,6.13,75,6.35,90,6.73,110,6.84,120,6.69,135,6.31,150,5.93,180,5.4
14,39.8,5.50578,52,6.09,60,6.38,75,6.71,90,7.01,110,7.45,120,7.23,135,6.8,150,6.36,180,5.88
16,40.1,5.52998,52,6.14,60,6.48,75,6.99,90,7.29,110,8.13,120,7.93,135,7.34,150,6.81,180,6.28
20,42.4,5.606297,52,6.13,60,6.51,75,7.18,90,7.98,110,9.27,120,10.34,135,9.02,150,7.92,180,7.17

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.37	4.66	4.88	4.98	4.96	4.78	4.31	3.66
8	5.18	5.45	5.62	5.78	5.79	5.67	5.27	4.63
10	5.65	5.83	5.99	6.27	6.31	6.19	5.86	5.44
12	5.92	6.13	6.35	6.73	6.84	6.69	6.31	5.93
14	6.09	6.38	6.71	7.01	7.45	7.23	6.8	6.36
16	6.14	6.48	6.99	7.29	8.13	7.93	7.34	6.81
20	6.13	6.51	7.18	7.98	9.27	10.34	9.02	7.92

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.1°	2.85	148°	3.17
8	42°	3.44	152°	4.01
10	41.6°	3.85	156°	4.76
12	40.1°	4.14	180°	5.4
14	39.8°	4.23	180°	5.88
16	40.1°	4.23	180°	6.28
20	42.4°	4.14	180°	7.17

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