Bjørnstjerne: ORC Rating

GPH

584.9

OSN

569.5

LOA

12.93 m

Displacement

8986 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7798

Medium

1.0522

High

1.2101

Triple Offshore

Low

1.0091

Medium

1.303

High

1.4524

Boat Specifications

Dimensions

Length overall: 12.93 m
Beam: 3.95 m
Draft: 2.2 m
Displacement: 8986 kg
Crew weight: 855 kg
Wetted surface: 35.65 m²

Sails

Mainsail: 54.79 m²
Genoa: 54.3 m²
Spinnaker: 115.86 m²
Asymmetric spinnaker: 0 m²

Design

Type: X-43
Builder: X-Yachts
Designer: Niels Jeppesen
Year built: 2003

Performance data

Polar CSV

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

6,43.1,5.135845,52,5.72,60,6.04,75,6.3,90,6.24,110,5.9,120,5.74,135,5.19,144.2,4.660546,150,4.37
8,41.8,6.06324,52,6.8,60,7.13,75,7.35,90,7.32,110,7.19,120,7.01,135,6.4,148.6,5.600135,150,5.52
10,41.3,6.722003,52,7.44,60,7.67,75,7.84,90,7.86,110,7.91,120,7.81,135,7.38,150,6.53,150.7,6.49031
12,40.3,6.962397,52,7.69,60,7.91,75,8.11,90,8.18,110,8.31,120,8.25,135,7.95,150,7.37,154.7,7.134304
14,39.7,7.057451,52,7.79,60,8.01,75,8.3,90,8.45,110,8.67,120,8.66,135,8.34,150,7.92,166.5,7.312032
16,39.4,7.104648,52,7.84,60,8.07,75,8.42,90,8.69,110,8.92,120,9.1,135,8.77,150,8.29,180,7.7
20,39.1,7.177406,52,7.9,60,8.11,75,8.53,90,9.05,110,9.35,120,9.76,135,9.75,150,9.12,180,8.46

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.72	6.04	6.3	6.24	5.9	5.74	5.19	4.37
8	6.8	7.13	7.35	7.32	7.19	7.01	6.4	5.52
10	7.44	7.67	7.84	7.86	7.91	7.81	7.38	6.53
12	7.69	7.91	8.11	8.18	8.31	8.25	7.95	7.37
14	7.79	8.01	8.3	8.45	8.67	8.66	8.34	7.92
16	7.84	8.07	8.42	8.69	8.92	9.1	8.77	8.29
20	7.9	8.11	8.53	9.05	9.35	9.76	9.75	9.12

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.1°	3.75	144.2°	3.78
8	41.8°	4.52	148.6°	4.78
10	41.3°	5.05	150.7°	5.66
12	40.3°	5.31	154.7°	6.45
14	39.7°	5.43	166.5°	7.11
16	39.4°	5.49	180°	7.7
20	39.1°	5.57	180°	8.46

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°	5.72	6.80	7.44	7.69	7.79	7.84	7.90
60°	6.04	7.13	7.67	7.91	8.01	8.07	8.11
75°	6.30	7.35	7.84	8.11	8.30	8.42	8.53
90°	6.24	7.32	7.86	8.18	8.45	8.69	9.05
110°	5.90	7.19	7.91	8.31	8.67	8.92	9.35
120°	5.74	7.01	7.81	8.25	8.66	9.10	9.76
135°	5.19	6.40	7.38	7.95	8.34	8.77	9.75
150°	4.37	5.52	6.53	7.37	7.92	8.29	9.12