ANNA MARIA II — ORC Rating

GPH

710.4

OSN

687.6

LOA

9.34 m

Displacement

4074 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.634

Medium

0.872

High

1.0254

Triple Offshore

Low

0.816

Medium

1.078

High

1.2248

Boat Specifications

Dimensions

Length overall: 9.34 m
Beam: 3.41 m
Draft: 1.59 m
Displacement: 4074 kg
Crew weight: 470 kg
Wetted surface: 20.79 m²

Sails

Mainsail: 20.37 m²
Genoa: 29.7 m²
Spinnaker: 64.53 m²
Asymmetric spinnaker: 0 m²

Design

Type: ATLANTIC 31
Builder: ATLANTIC
Designer: JACOPIN & JACOPIN
Year built: 1990

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.

6,43.7,4.025079,52,4.47,60,4.72,75,4.92,90,4.87,110,4.91,120,4.79,135,4.37,147.4,3.834045,150,3.73
8,42.3,4.732089,52,5.3,60,5.58,75,5.82,90,5.83,110,5.98,120,5.84,135,5.37,150,4.71,150.9,4.669409
10,42.3,5.35402,52,5.96,60,6.2,75,6.37,90,6.5,110,6.6,120,6.52,135,6.22,150,5.57,152,5.470313
12,41.8,5.835198,52,6.35,60,6.52,75,6.66,90,6.82,110,6.95,120,6.89,135,6.68,150,6.28,157.5,5.974805
14,40.6,6.018929,52,6.55,60,6.71,75,6.88,90,7.02,110,7.28,120,7.23,135,7,150,6.69,180,6.12
16,40,6.083198,52,6.64,60,6.84,75,7.06,90,7.14,110,7.6,120,7.59,135,7.34,150,6.99,180,6.57
20,40.3,6.123238,52,6.69,60,6.92,75,7.32,90,7.57,110,8,120,8.25,135,8.05,150,7.62,180,7.16

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.47	4.72	4.92	4.87	4.91	4.79	4.37	3.73
8	5.3	5.58	5.82	5.83	5.98	5.84	5.37	4.71
10	5.96	6.2	6.37	6.5	6.6	6.52	6.22	5.57
12	6.35	6.52	6.66	6.82	6.95	6.89	6.68	6.28
14	6.55	6.71	6.88	7.02	7.28	7.23	7	6.69
16	6.64	6.84	7.06	7.14	7.6	7.59	7.34	6.99
20	6.69	6.92	7.32	7.57	8	8.25	8.05	7.62

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.7°	2.91	147.4°	3.23
8	42.3°	3.5	150.9°	4.08
10	42.3°	3.96	152°	4.83
12	41.8°	4.35	157.5°	5.52
14	40.6°	4.57	180°	6.12
16	40°	4.66	180°	6.57
20	40.3°	4.67	180°	7.16

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