ANNA MARIA II: ORC Rating

GPH

711.5

OSN

687.5

LOA

9.34 m

Displacement

4074 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5665

Medium

0.7792

High

0.9083

Triple Offshore

Low

0.7278

Medium

0.9562

High

1.0773

Boat Specifications

Dimensions

Length overall: 9.34 m
Beam: 3.41 m
Draft: 1.59 m
Displacement: 4074 kg
Crew weight: 465 kg
Wetted surface: 20.8 m²

Sails

Mainsail: 20.43 m²
Genoa: 29.99 m²
Spinnaker: 64.9 m²
Asymmetric spinnaker: 0 m²

Design

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

Performance data

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into Offwind or compatible navigation software.

6,44.2,4.156725,52,4.57,60,4.83,75,4.97,90,4.86,110,4.89,120,4.74,135,4.3,146.4,3.793876,150,3.65
8,42.4,4.875041,52,5.42,60,5.66,75,5.8,90,5.77,110,5.9,120,5.76,135,5.31,150,4.67,150.3,4.662506
10,41.4,5.412532,52,5.98,60,6.17,75,6.31,90,6.39,110,6.52,120,6.43,135,6.11,150,5.53,153,5.387166
12,40,5.756846,52,6.31,60,6.47,75,6.61,90,6.72,110,6.88,120,6.84,135,6.6,150,6.19,158.5,5.868333
14,39.2,5.935909,52,6.5,60,6.65,75,6.82,90,6.91,110,7.16,120,7.14,135,6.95,150,6.62,171.8,6.082183
16,39.1,6.030567,52,6.6,60,6.77,75,6.98,90,7.05,110,7.41,120,7.43,135,7.26,150,6.94,177.2,6.477734
20,39.4,6.069362,52,6.66,60,6.85,75,7.18,90,7.38,110,7.83,120,8.08,135,7.93,150,7.53,178.8,7.071551
24,40.8,6.076658,52,6.64,60,6.88,75,7.27,90,7.63,110,8.12,120,8.65,135,8.85,150,8.22,178.3,7.63336

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.57	4.83	4.97	4.86	4.89	4.74	4.3	3.65
8	5.42	5.66	5.8	5.77	5.9	5.76	5.31	4.67
10	5.98	6.17	6.31	6.39	6.52	6.43	6.11	5.53
12	6.31	6.47	6.61	6.72	6.88	6.84	6.6	6.19
14	6.5	6.65	6.82	6.91	7.16	7.14	6.95	6.62
16	6.6	6.77	6.98	7.05	7.41	7.43	7.26	6.94
20	6.66	6.85	7.18	7.38	7.83	8.08	7.93	7.53
24	6.64	6.88	7.27	7.63	8.12	8.65	8.85	8.22

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	2.98	146.4°	3.16
8	42.4°	3.6	150.3°	4.05
10	41.4°	4.06	153°	4.8
12	40°	4.41	158.5°	5.46
14	39.2°	4.6	171.8°	6.02
16	39.1°	4.68	177.2°	6.47
20	39.4°	4.69	178.8°	7.07
24	40.8°	4.6	178.3°	7.63

VPP POLAR · BOAT SPEED BY TWAKT

TRUE WIND ANGLE —

READ AT ANGLE

Hover or tap the chart, or use the slider, to read boat speeds.

True wind speed 6 kt8 kt10 kt12 kt14 kt16 kt20 kt24 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 6 kt (kt)	Boat speed in 8 kt (kt)	Boat speed in 10 kt (kt)	Boat speed in 12 kt (kt)	Boat speed in 14 kt (kt)	Boat speed in 16 kt (kt)	Boat speed in 20 kt (kt)	Boat speed in 24 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	4.57	5.42	5.98	6.31	6.50	6.60	6.66	6.64
60°	4.83	5.66	6.17	6.47	6.65	6.77	6.85	6.88
75°	4.97	5.80	6.31	6.61	6.82	6.98	7.18	7.27
90°	4.86	5.77	6.39	6.72	6.91	7.05	7.38	7.63
110°	4.89	5.90	6.52	6.88	7.16	7.41	7.83	8.12
120°	4.74	5.76	6.43	6.84	7.14	7.43	8.08	8.65
135°	4.30	5.31	6.11	6.60	6.95	7.26	7.93	8.85
150°	3.65	4.67	5.53	6.19	6.62	6.94	7.53	8.22