MARTHA — ORC Rating | RegattaPages

GPH

675.1

OSN

652.8

LOA

11.079 m

Displacement

6924 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.602

Medium

0.8216

High

0.9616

Triple Offshore

Low

0.7707

Medium

1.005

High

1.1331

Boat Specifications

Dimensions

Length overall: 11.079 m
Beam: 3.27 m
Draft: 1.87 m
Displacement: 6924 kg
Crew weight: 565 kg
Wetted surface: 27.06 m²

Sails

Mainsail: 27.13 m²
Genoa: 47.01 m²
Spinnaker: 94.35 m²
Asymmetric spinnaker: 0 m²

Design

Type: Swan 37
Builder: Nautor
Designer: S&S
Year built: 1970
Stability index: 136.5

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.

6,43.2,4.376046,52,4.87,60,5.12,75,5.28,90,5.17,110,5.11,120,4.98,135,4.55,146.6,4.012707,150,3.87
8,41.7,5.143053,52,5.73,60,5.97,75,6.12,90,6.04,110,6.16,120,6.04,135,5.57,150,4.91,150.5,4.883061
10,40.6,5.702836,52,6.31,60,6.49,75,6.63,90,6.64,110,6.8,120,6.73,135,6.39,150,5.78,152.9,5.639101
12,39.4,6.056421,52,6.65,60,6.8,75,6.93,90,7,110,7.18,120,7.14,135,6.91,150,6.48,157.7,6.160765
14,38.7,6.240146,52,6.84,60,6.99,75,7.14,90,7.2,110,7.46,120,7.46,135,7.26,150,6.93,169.4,6.378853
16,38.2,6.337032,52,6.96,60,7.12,75,7.31,90,7.38,110,7.7,120,7.73,135,7.58,150,7.25,177.2,6.758068
20,37.6,6.424418,52,7.07,60,7.26,75,7.54,90,7.69,110,8.04,120,8.22,135,8.17,150,7.84,179,7.381124

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.87	5.12	5.28	5.17	5.11	4.98	4.55	3.87
8	5.73	5.97	6.12	6.04	6.16	6.04	5.57	4.91
10	6.31	6.49	6.63	6.64	6.8	6.73	6.39	5.78
12	6.65	6.8	6.93	7	7.18	7.14	6.91	6.48
14	6.84	6.99	7.14	7.2	7.46	7.46	7.26	6.93
16	6.96	7.12	7.31	7.38	7.7	7.73	7.58	7.25
20	7.07	7.26	7.54	7.69	8.04	8.22	8.17	7.84

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.19	146.6°	3.35
8	41.7°	3.84	150.5°	4.25
10	40.6°	4.33	152.9°	5.02
12	39.4°	4.68	157.7°	5.7
14	38.7°	4.87	169.4°	6.27
16	38.2°	4.98	177.2°	6.75
20	37.6°	5.09	179°	7.38

Loading polar chart…