FIRSTY 3 — ORC Rating

GPH

631.6

OSN

611.7

LOA

9.55 m

Displacement

3276 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6511

Medium

0.8786

High

1.0006

Triple Offshore

Low

0.8352

Medium

1.07

High

1.1963

Boat Specifications

Dimensions

Length overall: 9.55 m
Beam: 3.24 m
Draft: 1.99 m
Displacement: 3276 kg
Crew weight: 549 kg
Wetted surface: 20.21 m²

Sails

Mainsail: 30.74 m²
Genoa: 21.34 m²
Spinnaker: 81.39 m²
Asymmetric spinnaker: 62.15 m²

Design

Type: A 31
Builder: ARCHAMBAULT
Designer: JOUBERT-NIVELT
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.

6,43.4,4.665728,52,5.15,60,5.41,75,5.56,90,5.66,110,5.73,120,5.58,135,5.04,141.3,4.702533,150,4.24
8,40.9,5.464022,52,6.09,60,6.31,75,6.46,90,6.62,110,6.75,120,6.65,135,6.2,148,5.48318,150,5.37
10,39.1,5.979024,52,6.63,60,6.79,75,6.92,90,7.09,110,7.27,120,7.22,135,6.93,150,6.32,152.3,6.200632
12,37.9,6.222404,52,6.91,60,7.07,75,7.22,90,7.36,110,7.67,120,7.68,135,7.41,150,6.96,159,6.598253
14,37.5,6.327572,52,7.04,60,7.24,75,7.48,90,7.54,110,8.06,120,8.13,135,7.89,150,7.4,172.7,6.774914
16,37.7,6.420436,52,7.11,60,7.33,75,7.67,90,7.82,110,8.34,120,8.56,135,8.4,150,7.85,177.7,7.185789
20,38,6.484683,52,7.17,60,7.42,75,7.88,90,8.28,110,8.81,120,9.41,135,9.73,150,8.92,176.8,8.022509
24,39.5,6.492795,52,7.15,60,7.43,75,7.98,90,8.57,110,9.03,120,10.16,135,11.97,144.9,11.648235,150,11

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.15	5.41	5.56	5.66	5.73	5.58	5.04	4.24
8	6.09	6.31	6.46	6.62	6.75	6.65	6.2	5.37
10	6.63	6.79	6.92	7.09	7.27	7.22	6.93	6.32
12	6.91	7.07	7.22	7.36	7.67	7.68	7.41	6.96
14	7.04	7.24	7.48	7.54	8.06	8.13	7.89	7.4
16	7.11	7.33	7.67	7.82	8.34	8.56	8.4	7.85
20	7.17	7.42	7.88	8.28	8.81	9.41	9.73	8.92
24	7.15	7.43	7.98	8.57	9.03	10.16	11.97	11

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.4°	3.39	141.3°	3.67
8	40.9°	4.13	148°	4.65
10	39.1°	4.64	152.3°	5.49
12	37.9°	4.91	159°	6.16
14	37.5°	5.02	172.7°	6.72
16	37.7°	5.08	177.7°	7.18
20	38°	5.11	176.8°	8.01
24	39.5°	5.01	144.9°	9.53

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