SWAHILI — ORC Rating | RegattaPages

GPH

631.3

OSN

618.1

LOA

9.55 m

Displacement

3320 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6477

Medium

0.8663

High

0.9796

Triple Offshore

Low

0.845

Medium

1.0653

High

1.1843

Boat Specifications

Dimensions

Length overall: 9.55 m
Beam: 3.27 m
Draft: 2.08 m
Displacement: 3320 kg
Crew weight: 390 kg
Wetted surface: 20.69 m²

Sails

Mainsail: 29.42 m²
Genoa: 23.07 m²
Spinnaker: 70.6 m²
Asymmetric spinnaker: 66.51 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.

6,42,4.561695,52,5.13,60,5.55,75,6.03,90,6.23,110,6.05,120,5.73,135,5.01,145,4.480243,150,4.24
8,40.5,5.365555,52,6.06,60,6.37,75,6.78,90,6.96,110,6.89,120,6.71,135,6.19,149,5.389846,150,5.34
10,39.8,5.948325,52,6.61,60,6.8,75,7.04,90,7.31,110,7.32,120,7.19,135,6.9,150,6.29,152,6.183832
12,39,6.163578,52,6.84,60,7.03,75,7.21,90,7.54,110,7.76,120,7.63,135,7.34,150,6.92,159,6.566119
14,38.6,6.231443,52,6.92,60,7.13,75,7.42,90,7.73,110,8.21,120,8.14,135,7.82,150,7.33,180,6.73
16,38.6,6.257034,52,6.95,60,7.18,75,7.56,90,7.87,110,8.61,120,8.62,135,8.38,150,7.77,180,7.16
20,39,6.36946,52,7.04,60,7.24,75,7.66,90,8.27,110,9.12,120,9.68,135,9.81,150,8.85,180,8.01

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.13	5.55	6.03	6.23	6.05	5.73	5.01	4.24
8	6.06	6.37	6.78	6.96	6.89	6.71	6.19	5.34
10	6.61	6.8	7.04	7.31	7.32	7.19	6.9	6.29
12	6.84	7.03	7.21	7.54	7.76	7.63	7.34	6.92
14	6.92	7.13	7.42	7.73	8.21	8.14	7.82	7.33
16	6.95	7.18	7.56	7.87	8.61	8.62	8.38	7.77
20	7.04	7.24	7.66	8.27	9.12	9.68	9.81	8.85

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.39	145°	3.67
8	40.5°	4.08	149°	4.62
10	39.8°	4.57	152°	5.46
12	39°	4.79	159°	6.13
14	38.6°	4.87	180°	6.73
16	38.6°	4.89	180°	7.16
20	39°	4.95	180°	8.01

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