SWAHILI — ORC Rating | RegattaPages

GPH

633.9

OSN

615.8

LOA

9.55 m

Displacement

3320 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7272

Medium

0.982

High

1.1166

Triple Offshore

Low

0.9365

Medium

1.1997

High

1.3394

Boat Specifications

Dimensions

Length overall: 9.55 m
Beam: 3.27 m
Draft: 2.08 m
Displacement: 3320 kg
Crew weight: 459 kg
Wetted surface: 20.69 m²

Sails

Mainsail: 29.74 m²
Genoa: 22.69 m²
Spinnaker: 70.6 m²
Asymmetric spinnaker: 71.27 m²

Design

Type: A-31
Builder: ARCHAMBAULT
Designer: JOUBERT/NIVELT/MER
Year built: 2009

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.

6,41.9,4.527674,52,5.08,60,5.34,75,5.55,90,5.73,110,5.75,120,5.58,135,5.01,144.8,4.47901,150,4.22
8,40.5,5.378706,52,6.08,60,6.33,75,6.51,90,6.72,110,6.8,120,6.67,135,6.17,148.8,5.389517,150,5.32
10,39.6,5.996003,52,6.65,60,6.82,75,6.96,90,7.12,110,7.28,120,7.2,135,6.89,150,6.28,152,6.183832
12,38.3,6.218332,52,6.89,60,7.06,75,7.24,90,7.28,110,7.69,120,7.66,135,7.33,150,6.92,159.4,6.548729
14,37.9,6.285769,52,6.98,60,7.19,75,7.46,90,7.57,110,8.02,120,8.18,135,7.8,150,7.32,180,6.73
16,38,6.332401,52,7.03,60,7.24,75,7.63,90,7.87,110,8.28,120,8.67,135,8.36,150,7.76,180,7.16
20,38.4,6.469366,52,7.11,60,7.31,75,7.76,90,8.36,110,8.75,120,9.34,135,9.8,150,8.83,180,7.99

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.08	5.34	5.55	5.73	5.75	5.58	5.01	4.22
8	6.08	6.33	6.51	6.72	6.8	6.67	6.17	5.32
10	6.65	6.82	6.96	7.12	7.28	7.2	6.89	6.28
12	6.89	7.06	7.24	7.28	7.69	7.66	7.33	6.92
14	6.98	7.19	7.46	7.57	8.02	8.18	7.8	7.32
16	7.03	7.24	7.63	7.87	8.28	8.67	8.36	7.76
20	7.11	7.31	7.76	8.36	8.75	9.34	9.8	8.83

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.9°	3.37	144.8°	3.66
8	40.5°	4.09	148.8°	4.61
10	39.6°	4.62	152°	5.46
12	38.3°	4.88	159.4°	6.13
14	37.9°	4.96	180°	6.73
16	38°	4.99	180°	7.16
20	38.4°	5.07	180°	7.99

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