AEOLOS: ORC Rating

GPH

755.7

OSN

727.9

LOA

12.62 m

Displacement

10841 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5743

Medium

0.8144

High

0.9808

Triple Offshore

Low

0.7465

Medium

1.0212

High

1.1902

Boat Specifications

Dimensions

Length overall: 12.62 m
Beam: 3.71 m
Draft: 1.78 m
Displacement: 10841 kg
Crew weight: 618 kg
Wetted surface: 38.56 m²

Sails

Mainsail: 35.36 m²
Genoa: 41.85 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 0 m²

Design

Type: CT-42 Mermaid
Builder: Ta Chiao
Designer: William Garden
Year built: 1975

Performance data

Polar CSV

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

6,45.8,3.858483,52,4.22,60,4.53,75,4.79,90,4.78,110,4.48,120,4.22,135,3.71,150,3.19,170.6,2.827974
8,44.1,4.567442,52,5.05,60,5.36,75,5.65,90,5.66,110,5.42,120,5.16,135,4.68,150,4.15,171.8,3.718012
10,43.5,5.1146,52,5.69,60,6.07,75,6.4,90,6.43,110,6.24,120,5.96,135,5.45,150,4.94,173.7,4.507219
12,44.1,5.639676,52,6.26,60,6.59,75,6.84,90,6.9,110,6.81,120,6.64,135,6.17,150,5.63,175.1,5.188964
14,45,6.066976,52,6.59,60,6.87,75,7.09,90,7.19,110,7.14,120,7.03,135,6.74,150,6.29,175.3,5.829603
16,45,6.22254,52,6.74,60,7.02,75,7.26,90,7.41,110,7.38,120,7.29,135,7.07,150,6.79,176.4,6.422674
20,45.7,6.328613,52,6.81,60,7.12,75,7.48,90,7.72,110,7.85,120,7.76,135,7.54,150,7.34,178.7,7.151841

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.22	4.53	4.79	4.78	4.48	4.22	3.71	3.19
8	5.05	5.36	5.65	5.66	5.42	5.16	4.68	4.15
10	5.69	6.07	6.4	6.43	6.24	5.96	5.45	4.94
12	6.26	6.59	6.84	6.9	6.81	6.64	6.17	5.63
14	6.59	6.87	7.09	7.19	7.14	7.03	6.74	6.29
16	6.74	7.02	7.26	7.41	7.38	7.29	7.07	6.79
20	6.81	7.12	7.48	7.72	7.85	7.76	7.54	7.34

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.8°	2.69	170.6°	2.79
8	44.1°	3.28	171.8°	3.68
10	43.5°	3.71	173.7°	4.48
12	44.1°	4.05	175.1°	5.17
14	45°	4.29	175.3°	5.81
16	45°	4.4	176.4°	6.41
20	45.7°	4.42	178.7°	7.15

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°	4.22	5.05	5.69	6.26	6.59	6.74	6.81
60°	4.53	5.36	6.07	6.59	6.87	7.02	7.12
75°	4.79	5.65	6.40	6.84	7.09	7.26	7.48
90°	4.78	5.66	6.43	6.90	7.19	7.41	7.72
110°	4.48	5.42	6.24	6.81	7.14	7.38	7.85
120°	4.22	5.16	5.96	6.64	7.03	7.29	7.76
135°	3.71	4.68	5.45	6.17	6.74	7.07	7.54
150°	3.19	4.15	4.94	5.63	6.29	6.79	7.34