ANDROMEDA: ORC Rating

GPH

664.6

OSN

644.6

LOA

11.266 m

Displacement

7553 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6894

Medium

0.9326

High

1.0853

Triple Offshore

Low

0.8829

Medium

1.1473

High

1.2883

Boat Specifications

Dimensions

Length overall: 11.266 m
Beam: 3.7 m
Draft: 1.98 m
Displacement: 7553 kg
Crew weight: 700 kg
Wetted surface: 28.14 m²

Sails

Mainsail: 28.84 m²
Genoa: 49.06 m²
Spinnaker: 97.5 m²
Asymmetric spinnaker: 0 m²

Design

Type: OYSTER 37
Builder: OYSTER MARINE
Designer: HOLMAN & PYE
Year built: 1978

Performance data

Polar CSV

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

6,42.6,4.401593,52,4.91,60,5.15,75,5.34,90,5.29,110,5.2,120,5.08,135,4.66,146.8,4.134976,150,3.99
8,41.3,5.124696,52,5.76,60,6.05,75,6.28,90,6.23,110,6.31,120,6.17,135,5.68,150,5,151,4.962157
10,41.6,5.803706,52,6.45,60,6.66,75,6.8,90,6.84,110,6.96,120,6.88,135,6.56,150,5.87,151.9,5.770145
12,41,6.214311,52,6.77,60,6.94,75,7.08,90,7.16,110,7.31,120,7.26,135,7.04,150,6.62,156.1,6.34397
14,40.1,6.353594,52,6.94,60,7.1,75,7.27,90,7.33,110,7.6,120,7.58,135,7.36,150,7.04,174.6,6.448619
16,39.5,6.427996,52,7.02,60,7.21,75,7.43,90,7.53,110,7.88,120,7.89,135,7.67,150,7.34,180,6.9
20,39.6,6.489181,52,7.08,60,7.29,75,7.66,90,7.89,110,8.18,120,8.45,135,8.33,150,7.93,180,7.48

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.91	5.15	5.34	5.29	5.2	5.08	4.66	3.99
8	5.76	6.05	6.28	6.23	6.31	6.17	5.68	5
10	6.45	6.66	6.8	6.84	6.96	6.88	6.56	5.87
12	6.77	6.94	7.08	7.16	7.31	7.26	7.04	6.62
14	6.94	7.1	7.27	7.33	7.6	7.58	7.36	7.04
16	7.02	7.21	7.43	7.53	7.88	7.89	7.67	7.34
20	7.08	7.29	7.66	7.89	8.18	8.45	8.33	7.93

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.24	146.8°	3.46
8	41.3°	3.85	151°	4.34
10	41.6°	4.34	151.9°	5.09
12	41°	4.69	156.1°	5.8
14	40.1°	4.86	174.6°	6.42
16	39.5°	4.96	180°	6.9
20	39.6°	5	180°	7.48

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 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)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	4.91	5.76	6.45	6.77	6.94	7.02	7.08
60°	5.15	6.05	6.66	6.94	7.10	7.21	7.29
75°	5.34	6.28	6.80	7.08	7.27	7.43	7.66
90°	5.29	6.23	6.84	7.16	7.33	7.53	7.89
110°	5.20	6.31	6.96	7.31	7.60	7.88	8.18
120°	5.08	6.17	6.88	7.26	7.58	7.89	8.45
135°	4.66	5.68	6.56	7.04	7.36	7.67	8.33
150°	3.99	5.00	5.87	6.62	7.04	7.34	7.93