ANDROMEDA: ORC Rating

GPH

685.7

OSN

666.4

LOA

14.66 m

Displacement

17000 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.632

Medium

0.8719

High

1.0538

Triple Offshore

Low

0.8309

Medium

1.1203

High

1.3058

Boat Specifications

Dimensions

Length overall: 14.66 m
Beam: 3.99 m
Draft: 1.85 m
Displacement: 17000 kg
Crew weight: 550 kg
Wetted surface: 45.54 m²

Sails

Mainsail: 53.98 m²
Genoa: 50.81 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 100.14 m²

Design

Type: 11.3 KR KETSCH
Builder: A & R
Designer: MAX OERTZ
Year built: 1923

Performance data

Polar CSV

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

6,47.8,4.183287,52,4.47,60,4.84,75,5.16,90,5.23,110,5.27,120,5.12,135,4.59,145.1,4.048031,150,3.84
8,46.1,4.946627,52,5.36,60,5.72,75,6.05,90,6.23,110,6.37,120,6.19,135,5.6,147.4,4.997315,150,4.86
10,45.4,5.497377,52,6.02,60,6.46,75,6.88,90,7.17,110,7.3,120,7.15,135,6.55,150,5.75,150.9,5.699426
12,46.3,6.093656,52,6.62,60,7.08,75,7.43,90,7.69,110,7.79,120,7.7,135,7.32,150,6.59,152.3,6.460403
14,46.7,6.50318,52,7.03,60,7.43,75,7.73,90,7.98,110,8.11,120,8.03,135,7.77,150,7.29,155.9,6.989221
16,46.5,6.755239,52,7.26,60,7.62,75,7.93,90,8.13,110,8.38,120,8.31,135,8.07,150,7.72,164.7,7.184642
20,45.9,6.940525,52,7.46,60,7.81,75,8.17,90,8.47,110,8.86,120,8.88,135,8.65,150,8.27,180,7.77

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.47	4.84	5.16	5.23	5.27	5.12	4.59	3.84
8	5.36	5.72	6.05	6.23	6.37	6.19	5.6	4.86
10	6.02	6.46	6.88	7.17	7.3	7.15	6.55	5.75
12	6.62	7.08	7.43	7.69	7.79	7.7	7.32	6.59
14	7.03	7.43	7.73	7.98	8.11	8.03	7.77	7.29
16	7.26	7.62	7.93	8.13	8.38	8.31	8.07	7.72
20	7.46	7.81	8.17	8.47	8.86	8.88	8.65	8.27

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	47.8°	2.81	145.1°	3.32
8	46.1°	3.43	147.4°	4.21
10	45.4°	3.86	150.9°	4.98
12	46.3°	4.21	152.3°	5.72
14	46.7°	4.46	155.9°	6.38
16	46.5°	4.65	164.7°	6.93
20	45.9°	4.83	180°	7.77

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°	4.47	5.36	6.02	6.62	7.03	7.26	7.46
60°	4.84	5.72	6.46	7.08	7.43	7.62	7.81
75°	5.16	6.05	6.88	7.43	7.73	7.93	8.17
90°	5.23	6.23	7.17	7.69	7.98	8.13	8.47
110°	5.27	6.37	7.30	7.79	8.11	8.38	8.86
120°	5.12	6.19	7.15	7.70	8.03	8.31	8.88
135°	4.59	5.60	6.55	7.32	7.77	8.07	8.65
150°	3.84	4.86	5.75	6.59	7.29	7.72	8.27